File in Section: - Service Bulletin INFORMATION · 2018-12-13 · Page 4 August, 2017 Bulletin No.: 17-NA-176 • Body-color lower moldings with chrome inserts. • Silver front and

Copyright 2017 General Motors LLC. All Rights Reserved.

Service Bulletin

File in Section: -

Bulletin No.: 17-NA-176

Date: August, 2017

INFORMATION

Subject: 2018 Chevrolet Traverse New Model Features

Brand: Model:Model Year: VIN:

Engine: Transmission:From: To: From: To:

Chevrolet Traverse 2018 2018 All All

Gasoline, 2.0L,L4, DI, DOHC,VVT, DCVCP,

ATSS,Turbocharged— RPO LTG

Gasoline, 3.6L,V6, DI, DOHC,

ATSS —RPO LFY

9T65,Automatic, 9-Speed, GEN 1— RPO M3V

(FWD Only withthe 2.0L)

9T65,Automatic, 9-Speed, GEN 1— RPO M3V(AWD or FWDwith the 3.6L)

Involved Countries

United States, U.S. Virgin Islands, Puerto Rico, Canada, Mexico, Central America,Russia, Kazakhstan, Belarus, Qatar, Bahrain, UAE, Oman, Kuwait, Saudi Arabia,Lebanon, Jordan, Yemen, Iraq, Algeria, Libya, Morocco, Peru, Chile, Colombia, andIsrael

Page 2 August, 2017 Bulletin No.: 17-NA-176

Overview

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Chevrolet Traverse

Bulletin Purpose

This is a special bulletin to introduce the 2018Chevrolet Traverse. The purpose of this bulletin is tohelp the Service Department Personnel becomefamiliar with some of the vehicle’s new features and todescribe some of the action they will need to take toservice this vehicle.

OverviewNote: Available trim levels, equipment content andpowertrains may differ in Canada. Refer to the GMCanada vehicle order guide.

The all-new Traverse features a bold and refineddesign with seating for up to eight passengers. It’sexpected to offer the segment’s best third-row legroomand maximum cargo space. Premium interior andexterior design cues and new technologies abound,including available exclusive D-Optic headlamps thatprovide a natural daylight effect with a seamless lightquality. New technologies and all-new trim levels willexpand customer choices. The new 3.6L V6 engine isstandard and comes with FWD and available AWD.The 2.0L turbocharged engine is available on the RSmodel with FWD only. Switchable AWD on all models,except the RS model equipped with the 2.0Lturbocharged engine. The High Country model is

equipped with Twin Clutch AWD — RPO G99. Bothengines are paired with a 9-speed automatictransmission that offers smoother shifting and improvedfuel economy. Intelligent Stop/Start technology isstandard on all models. A sunroof is available on the LTand Premier models and standard on the High Country.Overall weight reduction of approximately 362 lbs (164kg) when equipped with the 2.0L engine from theprevious model. This Traverse body is stronger andlighter in weight than the one it replaces. The weightreduction comes mostly from the use of thinner-gaugehigh-strength steels, combined with optimization of thegeometry (or topology) of the structure, which bringsfuel economy and safety benefits and makes thevehicle more nimble. Traverse is equipped withChevrolet MyLink™, Apple CarPlay™ and AndroidAuto™ compatibility, and an available OnStar® 4G LTEWi-Fi connection that can connect up to seven devicesto easily access apps, stream music or work on the go,on a signal that’s more powerful than a smartphone.

Bulletin No.: 17-NA-176 August, 2017 Page 3

Vehicle Trim Levels

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LS• Chrome-accented grille with black inserts.• HID bi-function projector beam headlamps.• Signature LED Daytime Running Lamps.• 18-inch Bright Silver painted aluminum wheels.• Black lower moldings.• 8 passenger seating.

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LT• Available sunroof.• Chrome-accented grille with chrome inserts.• Body-color side mirrors with LED turn signal

indicator.• Halogen fog lamps.• Available 20-inch aluminum wheels.

• Black front and Silver painted rear roof rails.• Seating for up to 8 (with available second-row

bench).

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RS• Black bowties.• Signature Black Ice grille and fog lamp bezel.• 20-inch Dark Android painted aluminum wheels.• Gloss Black window trim.• Black roof rails.

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Premier• Available D-optic headlamps.• Available sunroof.• Chrome-accented grille with chrome inserts.• 20-inch machined-face Light Argent Metallic

aluminum wheels.• Body-color side-mirrors with LED turn signal

indicator.


• Body-color lower moldings with chrome inserts.• Silver front and chrome rear roof rails.

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Redline• 20-inch High-Gloss Black wheels with Red stripes.• Black bowties and signature Black and Red

badging.• Signature Black Ice grille and fog lamp bezel.• Gloss Black window trim.• Black roof rails.• Painted black lower moldings with Black Ice

Inserts.

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High Country• Available D-optic headlamps.• Unique chrome High Country grille.• IntelliBeam® headlamps.• 20-inch polished aluminum wheels.• High Country Jet Black/Loft Brown interior.

• Power-folding third-row seat.• Standard equipment sunroof.• Equipped with every safety and convenience

package offered in the Traverse lineup.

Airbag System

Overview

Airbags are designed to supplement the protectionprovided by seat belts. Even though today's airbags arealso designed to help reduce the risk of injury from theforce of an inflating airbag, all airbags must inflate veryquickly to do their job. Everyone in the vehicle shouldwear a seat belt properly, whether or not there is anairbag for that person. All vehicle airbags have the wordAIRBAG on the trim or on a label near the deploymentopening. The airbags are located in the followingpositions:– A frontal airbag for the driver.– A frontal airbag for the front outboard passenger.– A front center airbag for the driver and front outboard

passenger.– A seat-mounted side impact airbag for the driver.– A seat-mounted side impact airbag for the front

outboard passenger.– A roof-rail airbag for the driver and for the second

and third row passengers seated directly behind thedriver.

– A roof-rail airbag for the front outboard passengerand for the second and third row passengers seateddirectly behind the front outboard passenger.

Airbag Readiness Light

The Airbag Readiness Light displays in the instrumentcluster if there is an electrical problem with the airbagsystem. The system check includes the airbag sensors,passenger sensing system, the pretensioners, theairbag modules, the wiring, and the crash sensing anddiagnostic module (SDM). The airbag readiness lightturns ON for several seconds when the vehicle isstarted. If the light does not turn ON, have it repairedimmediately.

Brakes

Description and Operation

All models have four-wheel disc brakes with Duralife™brake rotors. The vehicle is equipped with a TRWEBC460 disc brake system. The electronic brakecontrol module (EBCM) and the brake pressuremodulator are serviced separately. The brake pressuremodulator uses a four circuit configuration to controlhydraulic pressure to each wheel independently.


Depending on options, the following vehicleperformance enhancement systems are provided:• Antilock Brake System: When wheel slip is

detected during a brake application, an antilockbrake system (ABS) event occurs. During ABSbraking, hydraulic pressure in the individual wheelcircuits is controlled to prevent any wheel fromslipping. A separate hydraulic line and specificsolenoid valves are provided for each wheel. TheABS can decrease, hold, or increase hydraulicpressure to each wheel. The ABS does notincrease hydraulic pressure above the amountwhich is transmitted by the master cylinder duringbraking.

• Cornering Brake Control: Cornering brakecontrol is a slip control function that is intended toimprove the vehicle's lateral/yaw stability duringcombined braking and cornering situations. TheEBCM will reduce the brake pressure to the insidewheels by commanding the appropriate solenoidvalves ON and OFF.

• Dynamic Rear Proportioning: The dynamic rearproportioning is a control system that replaces themechanical proportioning valve. Under certaindriving conditions the EBCM will reduce the rearwheel brake pressure by commanding theappropriate solenoid valves ON and OFF.

• Hill Hold Start Assist: The hill hold start assistallows the driver to launch the vehicle without aroll back while moving the foot from the brakepedal to the accelerator pedal. The EBCMcalculates the brake pressure, which is needed tohold the vehicle on an incline and locks thatpressure for a certain time by commanding theappropriate solenoid valves ON and OFF whenthe brake pedal is released. Hill Hold Start Assistis activated when the EBCM determines that thedriver wishes to move the vehicle up-hill, eitherbackwards or forwards.

• Hydraulic Brake Assist: The hydraulic brakeassist function is designed to support the driver inemergency braking situations. The EBCMreceives inputs from the brake pressure sensor.When the EBCM senses an emergency brakingsituation, the EBCM will actively increase thebrake pressure to a specific maximum.

• Intelligent Brake Assist: The intelligent brakeassist function is designed to provide limitedbraking to help prevent front and rear low speedcollisions. The EBCM receives inputs from thebrake pedal position sensor, wheel speedsensors, short range radar and ultrasonic sensorsto detect a collision. When the EBCM senses apossible collision, it will actively increase thehydraulic brake pressure to apply the brakes.

• Optimized Hydraulic Braking System: Withsome engines the EBCM monitors the vacuum inthe brake booster with a vacuum sensor andcontrols a brake booster vacuum pump dependingon vacuum sensor input. It also has a hydraulicbrake boost feature which supplements the brakesystem to maintain consistent brake performanceunder conditions of low brake booster vacuum.Low brake booster vacuum conditions can include

initial start up after the vehicle has been parked forseveral hours, very frequent brake stops, or highaltitude driving. The hydraulic brake boost systemactivates only during a brake apply under lowvacuum conditions. In this case the EBCM willactively increase and control the hydraulic brakepressure by turning the pump motor ON and theappropriate solenoid valves ON and OFF. Whenhydraulic brake boost is active, a series of rapidpulsations is felt in the brake pedal.

• Stability Control: Stability control providesadded stability during aggressive maneuvers. Yawrate is the rate of rotation about the vehicle'svertical axis. The stability control is activated whenthe EBCM determines that the desired yaw ratedoes not match the actual yaw rate as measuredby the yaw rate sensor. The difference betweenthe desired yaw rate and the actual yaw rate is theyaw rate error, which is a measurement of oversteer or under steer. When a yaw rate error isdetected, the EBCM attempts to correct thevehicle's yaw motion by applying brake pressureto one or more of the wheels. The amount of brakepressure which is applied varies, depending onthe correction required. Stability control can bemanually disabled or enabled by pressing andholding the traction control switch for five seconds.

• Traction Control: When drive wheel slip is noted,the EBCM will enter traction control mode. First,the EBCM requests the engine control module(ECM) to reduce the amount of torque to the drivewheels via a serial data message. The ECMreduces torque to the drive wheels and reports theamount of delivered torque. If the engine torquereduction does not reduce drive wheel slip, theEBCM will actively apply the brakes on theslipping drive wheel. During traction controlbraking, hydraulic pressure in each drive wheelcircuit is controlled to prevent the drive wheelsfrom slipping. The EBCM commands the pumpmotor and appropriate solenoid valves ON andOFF to apply brake pressure to the slipping wheel.Traction control can be manually disabled orenabled by pressing the traction control switch.

• Trailer Brake Control System: A trailer brakecontrol system is used to control the amount oftrailer braking power that is made available totrailers with brakes that require a controlled outputelectrical signal for actuation. The trailer brakecontrol system determines the trailer brake type(Electric Brake or Electric Over Hydraulic Brake)automatically.

• Trailer Sway Control: The trailer sway controlwill detect any vehicle yaw instability, caused byan attached trailer. When instability is detected,the EBCM attempts to correct the vehicle's yawmotion by applying brake pressure to one or moreof the wheels. The engine torque may be reducedalso, if it is necessary to slow down the vehicle.

Duralife™ Brake Rotors

The vehicle is equipped with Duralife™ FerriticNitro-Carburized (FNC) brake rotors and low dragbrake calipers. Application of the FNC technologyinvolves an additional manufacturing process that


heats the rotors at 1,040°F (560°C) for up to 24 hours ina giant oven. Inside the nitrogen-rich atmosphere,nitrogen atoms bond to the surface of the steel rotor,hardening and strengthening the rotor. This uniquesurface treatment, equivalent to one-tenth the width ofa human hair, creates sufficient friction and allows foreffective braking performance while providing corrosionprotection and allowing the brake rotor to wear muchslower. Over time, the buildup of rust can also lead tobrake pedal and/or steering wheel shudder. GM is theonly company that has found a way to effectively treatbrake rotors using FNC technology.

Electric Parking Brake

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The electric parking brake (EPB) switch is in the centerconsole, which takes the place of the manual parkingbrake system including the foot pedal, cables andrelease handle. The EPB can always be activated,even if the ignition is OFF. To prevent draining thebattery, avoid repeated cycles of the EPB system whenthe engine is not running.

Electric Parking Brake Apply

To apply the EPB:1. Be sure the vehicle is at a complete stop.2. Lift up the EPB switch momentarily.

If the EPB is applied while the vehicle is moving, thevehicle will decelerate as long as the switch is pulled. Ifthe switch is pulled until the vehicle comes to a stop,the EPB will remain applied.The vehicle may automatically apply the EPB in somesituations when the vehicle is not moving. This isnormal, and is done to periodically verify the correctoperation of the EPB system.

Electric Parking Brake Release

To release the EPB:1. Place the ignition in ON or ACC/ACCESSORY.2. Apply and hold the brake pedal.3. Press the EPB switch momentarily.

Automatic Electric Parking Brake Release

The EPB will automatically release if the vehicle isrunning, placed into gear, and an attempt is made todrive away. Avoid rapid acceleration when the EPB isapplied, to preserve parking brake lining life.

D-Optic Headlamps

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D-Optic headlamps are standard on the Premier andHigh Country and it represents an industry-first use ofLED D-Optic headlamps. D-Optic headlamps, get theirname from the backward D shape of the light guides.There are nine light guides, three large, four mediumand two small per headlamp. Each has an LED behindit. The two large optics located toward the outside of thevehicle provide low-beam function. Four small-sizedoptics spread the low-beam light across the road. Thethird large optic is the high-beam function. Twomedium-sized optics spread the high-beam light. Whilelight output of an HID and LED D-Optic headlamp isfairly similar, the D-Optic has a cool white appearanceon the road, giving it an aesthetically pleasing daylightappearance to the eye. The D-Optic headlamp also hasa smoother and more even beam pattern, i.e., fewerdark spots or streaks on the road than an HIDheadlamp.

Electric Power Steering

Electric Power Steering (EPS)

The vehicle has electric power steering with ActiveReturn Assist. If power steering assist is lost due to asystem malfunction, the vehicle can be steered, but itmay require increased effort. If the steering assist isused for an extended period of time while the vehicle isnot moving, power assist may be reduced. If thesteering wheel is turned until it reaches the end of itstravel and is held against that position for an extendedperiod of time, power steering assist may be reduced. Ifthe steering assist is used for an extended period of


time, power assist may be reduced. Normal use of thepower steering assist should return when the systemcools down.Additional EPS advantages over a hydraulic systeminclude:• Excellent response and on-center characteristics.• Power is used only when the vehicle is actually

turning, as opposed to a constantly runninghydraulic power steering pump, which positivelyimpacts fuel economy.

• Variable-effort steering increases the level ofpower assistance during low-speed maneuvers,such as parking, and decreases the level of powerassistance at higher speeds.

• No need for a pump which eliminates fluid leaksand the need to check the power steering fluidlevel.

• Noise reduction, because there is no pump or fluidflowing through hoses and valves.

Engine— 2.0L Turbocharged Gasoline— RPO LTG

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Typical View of the 2.0L Turbocharged Engine—RPO LTG

Overview

Performance from GM’s Ecotec family of enginescontinues to advance with the 2.0L Turbocharged —RPO LTG, which is based on a generation of largedisplacement four cylinder engines which are designedfor greater efficiency. The turbocharger generates up to20 pounds (138 kPa) of boost and its twin-scroll designhelps optimize the usable power from the engine,virtually eliminating turbo lag and helping deliver abroad power band. It also gives the engine the rapidthrottle responsiveness associated with a higherdisplacement naturally aspirated high performanceengine. Electronically controlled turbocharger

supporting components including the wastegate andbypass valve, help optimize performance andefficiency.

Engine Component Description

• Cam-Driven High Pressure Fuel Pump: A highpressure, cam-driven fuel pump provides thehigher fuel pressure required by the directinjection system. The engine mounted fuel pumpis augmented by a conventional electricallyoperated supply pump in the fuel tank. The fueldelivery system features a high-pressure stainlesssteel feed line and a pressure regulated fuel railwithout a conventional fuel return line from theengine to the tank. Fuel pressure varies fromabout 750 psi (5,171 kPa) at idle to 2,250 psi(15,513 kPa) at wide open throttle (WOT).

• Cylinder Block: The sand-cast aluminum 319T7cylinder block is a superior refinement of previousEcotec engine block castings. It is dimensionallysimilar with previous Ecotec turbo block variants,while providing improved structural support, aswell as enabling greater control of noise, vibrationand harshness. The main bearing bulkheads,which support the crank bearings, as well as thecylinder bore walls have been significantlystrengthened to support increased engine loads.Refinements to the oil distribution system enableimproved oil flow throughout the engine and anexpansion of the coolant jacket, along with the useof cast-in-place bore liners, allows more precisebore roundness and improves the block’s ability todissipate heat.

• Cylinder Head— Rotocast Aluminum withSodium Filled Exhaust Valves: The Ecotec 2.0Lturbo's A356T6 aluminum cylinder head is castusing a Rotocast process for high strength,reduced machining and improved port flow. Thehead is also designed specifically for directinjection. The 2.0L turbo head has unique injectormounting locations below the ports. Apart frominjector installation, the head has conventionalport and combustion chamber designs, both areoptimized for direct injection and high boostpressure. The head uses stainless steel intakevalves that are nitrided for improved durability andundercut to improve flow and reduce weight. Theexhaust valves have sodium-filled stems thatpromote valve cooling. At normal engine operatingtemperatures, the sodium inside the valve stemfuses and becomes liquid. The liquid sodiumimproves conductivity, promoting heat transferaway from the valve face and valve guide to thecooler end of the stem, where it more readilydissipates. This helps maintain a lower, moreuniform valve temperature, reducing wear on thevalve guide for better alignment and a consistentseal between the valve seat and valve face overthe life of the engine. The exhaust manifold ismounted to the cylinder head and is made of caststainless steel. It is extremely durable and deliversexceptional airflow qualities.


• DOHC with Continuously Variable ValveTiming: Overhead cams are the most direct,efficient means of operating the valves, while fourvalves per cylinder increase airflow in and out ofthe engine. This arrangement is integrated on thelightweight aluminum cylinder head. Continuouslyvariable valve timing optimizes the engine'sturbocharging system by adjusting valve timing atlower rpm for improved turbo response andgreater torque delivery. Both the intake andexhaust cams have hydraulically operatedvane-type phasers that are managed by asolenoid and directed by the engine controlmodule (ECM). The phasers turn the camshaftrelative to the drive sprocket, allowing intake andexhaust valve timing to be adjusted independently.Cam phasing changes the timing of valveoperation as conditions such as rpm and engineload vary. This provides an outstanding balance ofsmooth torque delivery over a broad rpm range,high specific output and improves fuelconsumption.

• Ignition System: The ignition system iscoil-on-plug.

• Rotating Assembly: The crankshaft is made ofdrop forged steel with induction heat-treated filletsand cross-drilled chamfered oil passages forracing grade lubrication characteristics. Forgedpowdered metal connecting rods incorporate alarger, forged I-beam cross section for addedstrength in this turbocharged application. Thepistons in the 2.0L turbo are lightweight castaluminum, which reduces reciprocating massinside the engine. This enhances efficiency andthe feeling of performance as the rpm increases.The tops of the pistons have a dish shape thatdeflects injected fuel. Each piston has its owndirected jet that sprays oil toward its skirt, coatingits underside and the cylinder wall with anadditional layer of lubricant. The extra lubricationcools the pistons, reduces both friction andoperational noise and bolsters engine durability.

• Side Direct Fuel Injection: Side direct fuelinjection moves the point where fuel feeds into anengine cylinder closer to the point where it ignites,enabling greater combustion efficiency. It fosters amore complete burn of the fuel in the air-fuelmixture, and operates at a lower temperature thanconventional port injection. This allows the mixtureto be leaner (less fuel and more air), so less fuel isrequired to produce the equivalent horsepower ofa conventional, port-injection fuel system. Directinjection also delivers reduced emissions,particularly cold-start emissions, by about 25percent. The higher compression ratio with directinjection is possible because of a cooling effect asthe injected fuel vaporizes in the combustionchamber, which reduces the charge temperatureto lessen the likelihood of spark knock. The directinjection fuel injectors have been developed towithstand the greater heat and pressure inside thecombustion chamber, and feature multiple outletsfor best injection control.

• Two Stage Variable Displacement Oil Pump:The variable flow oiling system helps maximizefuel efficiency. Rather than the linear operation ofa conventional fixed flow pump, it is accomplishedwith a crankshaft driven oil pump that matches theoil supply to the engine load. The engine’svariable flow pump changes its capacity based onthe engine’s demand for oil. This prevents usingenergy to pump oil that is not required for properengine operation. An engine oil cooler helpsmaintain optimum oil temperatures. It has a heatexchanger incorporated into the oil filter housing.Coolant to the heat exchanger is provided by theengine’s coolant circuit. The design optimizes oilcooling with a minimal pressure loss. During thecold starting, the system also enables fasterheating of the engine oil for an earlier reduction ofinternal engine friction.

• Twin-Scroll Turbocharger: An advanced,electronically controlled turbocharger with aunique twin-scroll design is used to increasepower in the engine. Each of the two scrolls on theturbine is fed by a separate exhaust passage, onefrom cylinders one and four, the other fromcylinders two and three and virtually eliminatesturbo lag at low engine speeds, giving the engineimmediate throttle response associated with anaturally aspirated high-performance engine. Theturbocharger generates a maximum boost ofapproximately 20 psi (138 kPa). Because directinjection cools the intake process it allows theengine to safely operate at higher boost and arelatively higher compression (9.5:1) ratio than aconventional turbo engine, increasing both outputand efficiency.– Air-to-Air Charge Air Cooler: Theturbocharger intake system is supported by anair-to-air charge air cooler system, which usesfresh air drawn through a heat exchanger toreduce the temperature of the hot compressedair exiting the turbo compressor, prior to deliveryto the engine combustion system. Inlet airtemperature can be reduced by up to 100°C(180°F), which enhances performance. This isdue to the higher density of oxygen in the cooledair, which promotes optimal combustion. Thecharge air cooler is connected to theturbocharger and to the throttle body by flexibleductwork that requires the use of special hightorque fastening clamps. In order to prevent anytype of air leak when servicing the ductwork, thetightening specifications, cleanliness and properpositioning of the clamps is critical, and must bestrictly adhered to.

– Cam-Driven Vacuum Pump: A cam-drivenvacuum pump ensures the availability ofvacuum under all conditions, especially underboost, when the engine produces the oppositeof vacuum. The pump is mounted at the rear ofthe cylinder head and is driven by the exhaustcamshaft.


Engine Specifications

• Displacement: 2.0L (1,998cc) — (122 cubicinches)

• Bore x Stroke : 3.39 inches (86 mm) x 3.39inches (86 mm)

• Compression Ratio: 9.5:1• Firing Order: 1-3-4-2• Horsepower: 255 Horsepower (190 kW) @ 5,500

rpm (GM Estimate)• Torque: 295 lb ft (400 Nm) @ 3,000 rpm (GM

Estimate)• Maximum Engine Speed: 7,000 rpm• Valves: 2 intake and 2 exhaust valves per

cylinder• Valve Lifters: Hydraulic roller finger follower• Emissions controls: Evaporative system,

Catalytic converters (close coupled andunderfloor) and Positive CrankcaseVentilation (PCV)

• Recommended Fuel: For the 2.0L engine, usepremium unleaded gasoline meeting ASTMspecification D4814 with a posted octane rating of93, which is highly recommended for the bestperformance and fuel economy.

Engine— 3.6L Gasoline— RPO LFY

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Typical View of the 3.6L Engine— RPO LFY

Engine Component Description

The High Feature V6 (VIN Code Identifier 3 for bothcars and trucks) RPO LFY is a 3.6 L variable valvetiming (VVT) engine with direct injection (DI). The DIsystem places the high pressure injectors in thecylinder heads. The engine has 2 intake and 2 exhaustvalves per cylinder, and uses a dual overhead camdesign with individual intake and exhaust camshafts. A

camshaft position actuator is mounted on eachcamshaft. The cylinders are arranged in 2 banks of 3 ata 60 degree angle. The right bank of cylinders arenumber 1-3-5 and the left bank of cylinders are 2-4-6,viewed from the flywheel end of the engine.• Camshaft Drive System: The camshaft drive

system consists of one primary timing drive chaindriven by the crankshaft sprocket. The primarytiming drive chain drives two intermediate driveshaft sprockets. Each oil-pressure-fedintermediate drive shaft sprocket drives separatesecondary timing drive chains. Each secondarytiming drive chain drives the respective cylinderhead's intake and exhaust camshaft positionactuators. The primary timing drive chain uses twostationary timing drive chain guides and ahydraulically-actuated tensioner with built-in shoe.The tensioner minimizes timing drive chain noiseand provides accurate valve action by keepingslack out of the timing drive chains andcontinuously adjusting for timing drive chain wear.The tensioner incorporates a plunger that adjustsout with wear allowing only a minimal amount ofbacklash. The tensioner is equipped with an oilingjet to spray oil onto the timing components duringengine operation. The secondary timing drivechains use a stationary timing drive chain guideand movable timing drive chain shoe. Thesecondary timing drive chain shoe is undertension from a hydraulically-actuated tensioner. Alltensioners are sealed to the head or block using arubber coated steel gasket. The gasket traps anadequate oil reserve to ensure quiet start-up.

• Camshaft Position Actuator System: Theengine incorporates a camshaft position actuatorfor each intake and exhaust camshaft. Camshaftphasing changes valve timing as engine operatingconditions vary. Dual camshaft phasing allows thefurther optimization of performance, fuel economyand emissions without compromising overallengine response and driveability. Variable valvetiming also contributes to a reduction in exhaustemissions. It optimizes exhaust and inlet valveoverlap and eliminates the need for an exhaustgas recirculation (EGR) system. The camshaftposition actuator is a hydraulic vane-type actuatorthat changes the camshaft lobe timing relative tothe camshaft drive sprocket. Engine oil is directedby a camshaft position actuator oil control valve tothe appropriate passages in the camshaft positionactuator. Oil acting on the vane in the camshaftposition actuator rotates the camshaft relative tothe sprocket. At idle, both camshafts are at thedefault or "home" position. At this position, theexhaust camshaft is fully advanced and the intakeis fully retarded to minimize valve overlap forsmooth idle. An internal lock pin locks the innerrotor to the outer camshaft position actuatorhousing at idle and maintains this position duringstart-up conditions. Under other engine operatingconditions, the camshaft position actuator iscontrolled by the engine control module (ECM) todeliver optimal intake and exhaust valve timing forperformance, driveability and fuel economy. Thecamshaft position actuator incorporates an


integral trigger wheel, which is sensed by thecamshaft position sensor mounted in the frontcover, to accurately determine the position of eachcamshaft. The exhaust camshaft position actuatorhas a different internal configuration than theintake camshaft position actuator since theexhaust camshaft position actuator phases in theopposite direction relative to the inlet camshaftposition actuator. The camshaft position actuatoroil control valve (OCV) directs oil from the oil feedin the head to the appropriate camshaft positionactuator oil passages. There is one OCV for eachcamshaft position actuator. The OCV is sealedand mounted to the front cover. The ported end ofthe OCV is inserted into the cylinder head with asliding fit. A filter screen protects each OCV oilport from any contamination in the oil supply. Thecamshaft front journal has several drilled oil holesto allow camshaft position actuator control oil totransfer from the cylinder head to the camshaftposition actuator. The center camshaft bolt hole iscounterbored to allow oil to flow around thecamshaft bolt and to the camshaft positionactuator. Oil in this oil passage is used to movethe camshaft position actuator to the default orhome position. Radially outward from the center ofthe journal is a set of 4 drilled camshaft positionactuator oil holes. Oil in this group of oil holes isused to move the camshaft from the defaultposition to a specific set position as determined bythe ECM. Seal rings are used at the front and rearof the front camshaft journal to prevent oil leakagefrom the camshaft position actuator hydraulicsystem. The seal is made from a plasticcompound that resists wear and has a diagonalend gap to enhance sealing. The camshaftposition actuator is mounted to the front end of thecamshaft and the timing notch in the nose of thecamshaft aligns with the dowel pin in the camshaftposition actuator to ensure proper cam timing andcamshaft position actuator oil hole alignment.

• Connecting Rods and Pistons: The connectingrods are steel and have full floating piston pins.The piston pins are a slip fit in the bronze bushedconnecting rod. Round wire retainers are used toretain the piston pin into the piston. The castaluminum pistons incorporate a polymer-coatedskirt to reduce friction. The piston uses two lowtension compression rings and one multi-piece oilcontrol ring. The top of the piston contains ashaped portion for the direct injection system toaid in fuel-air charge mixture and evencombustion.

• Crankshaft: The crankshaft is a hardened,forged steel design with 4 main bearings.Crankshaft thrust is controlled by the upperportion of number 3 main bearing. The crankshaftposition reluctor wheel is pressed onto the rear ofthe crankshaft in front of the rear main journal. Amicro encapsulated adhesive is used on thereluctor wheel to aid retention. The crankshaft isinternally balanced, and has an integral oil pumpdrive machined into the nose in front of the frontmain journal.

• Cylinder Block: The cylinder block isconstructed of aluminum alloy by precisionsand-casting with cast in place iron cylinder liners.Each main bearing cap incorporates 6 boltsbolting the cap into the engine block. Along with 2outer and 2 inner bolts, 2 side bolts are used in thedeep skirt block. To prevent aeration, oil returnfrom the valvetrain and cylinder heads ischanneled away from the rotating andreciprocating components through oil drain backpassages incorporated into the cylinder heads andengine block. Pressure-actuated piston oil coolingjets are mounted between opposing cylinders. Aknock sensor is located on the each side of theexterior of the engine block. The crankshaftposition sensor is located on the right side of theexterior of the engine block.

• Cylinder Heads: The cylinder heads are castaluminum with powdered metal valve seat insertsand valve guides. The cylinder heads also featureintegrated exhaust manifolds; the exhaustmanifolds are incorporated into the head casting.Two intake valves and two exhaust valves areactuated by roller finger followers pivoting on astationary hydraulic lash adjuster (SHLA). Theintake valves in the LFY engine are slightly largerthan those in the LFW engine to allow theadditional air necessary for a 3.6L displacementengine. Separate exhaust and intake camshaftsare supported by bearings machined into thecylinder head. The front camshaft bearing cap isused as a thrust control surface for eachcamshaft. Each spark plug is shielded by a tubethat is pressed into the cylinder head. Each sparkplug ignition coil wire is also mounted through thespark plug tube. The engine coolanttemperature (ECT) sensor is threaded into thecylinder head. With direct injection, the highpressure injectors are located in machined boresbelow the intake ports. A stainless steel, highpressure fuel rail is attached to the intake side ofthe head.

• Right and Left Bank Designation: Righthand (RH) and left hand (LH) designation throughthe engine mechanical section are viewed fromthe rear, non-front-cover side, of the engine orfrom inside the vehicle. These banks are alsoreferred to as Bank 1 (RH) and Bank 2 (LH).

Engine Specifications

• Displacement: 3.6L (220 ci)• Bore x Stroke : 3.70 inches (94 mm) x 3.37

inches (85.6 mm)• Compression Ratio: 11.5:1• Firing Order: 1-2-3-4-5-6• Horsepower: 305 Horsepower (227 kW) @ 6,800

rpm (GM Estimate)• Torque: 260 lb ft (351 Nm) @ 2,800 rpm (GM

Estimate)• Valves: 2 intake and 2 exhaust valves per

cylinder


• Emissions controls: Evaporative system,Catalytic converters (close coupled andunderfloor) and Positive CrankcaseVentilation (PCV)

• Recommended Fuel: For the 3.6L engine, useregular unleaded gasoline meeting ASTMspecification D4814 with a posted octane rating of87 or higher.

Engine Oil— dexos1®

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Ask for and use engine oils that meet the dexos®specification. Engine oils that have been approved byGM as meeting the dexos1® specification are markedwith either of the approved logos as shown. Foradditional information, visit this General Motorswebsite: http://www.gmdexos.com

Viscosity Grade

2.0L— RPO LTG Engine: Use ACDelco® dexos1®SAE 5W-30 viscosity grade engine oil. In an area ofextreme cold, where the temperature is less than −20°F(−29°C), use SAE 0W-30 viscosity grade engine oil. Anoil of this viscosity grade will provide easier coldstarting for the engine at these colder temperatures.

3.6L— RPO LFY Engine: Use ACDelco® dexos1®SAE 5W-30 viscosity grade engine oil. In an area ofextreme cold, where the temperature is less than −20°F(−29°C), use SAE 0W-30 viscosity grade engine oil. Anoil of this viscosity grade will provide easier coldstarting for the engine at these colder temperatures.

Engine Oil Life System

The vehicle features GM’s engine oil life system, whichbetter protects engines by recommending oil changesbased on a computer software algorithm using actualengine operating conditions and can save the vehicleowner money by avoiding unnecessary oil changes.

Engine— Intelligent Stop/Start

Overview

Intelligent stop/start technology is similar to the stop/start system found on vehicles in the current Chevroletportfolio. However, it offers quieter engine stops/startswith fewer vibrations, making them more seamless tocustomers. Its operating system also can recognizecertain driving maneuvers, such as backing into agarage or parking lot situations, and better helpsdetermine whether or not the vehicle needs to be in astop/start situation. Both engines come with standardfuel-saving intelligent stop/start technology, whichshuts down the engine in certain conditions to reducefuel consumption. There are no buttons to push orprocedures to learn. Stop/start automatically shutsdown the engine when the vehicle comes to a stopunder certain driving conditions, such as at a stoplight.The engine automatically restarts when the driver takestheir foot off the brake. An advanced algorithmdetermines when driving conditions are optimal forshut-off. The system monitors vehicle speed, climatecontrol system operation and other conditions todetermine whether it is efficient to shut OFF the engine.In some cases, such as heavy stop-and go traffic, theengine will not shut down. The engine-stop function isnot indefinite. The engine automatically restarts afterapproximately two minutes if the driver hasn’t removedtheir foot from the brake pedal. The technology alsoreduces emissions.Unique components used with stop/start include:• A tandem-solenoid starter that enables the engine

to restart quicker and more smoothly, even if theengine hasn’t come to a complete stop.

• A unique DC-DC module that maintains voltageduring a stop/start event to avoid lightingfluctuations and potential resets/noise in theaudio/infotainment system.


• An electronically controlled accumulator retainsthe transmission fluid pressure to keep theclutches engaged for immediate takeoff when thedriver removes their foot from the brake pedal.

• An engine mount system that dampens thevibrations associated with a restart, helping todeliver smooth, nearly imperceptible performance.

HVAC

The Traverse will feature a standard tri-zone automaticclimate control system, two zones in the front row andone zone in the second row a feature that will help keepall occupants comfortable. Controls are in the front andsecond rows. Front-seat passengers can also controlthe second-row settings from the center stacktouch-screen display. The system features four frontoutlets and four rear outlets, with two in the second rowand two in the third row. It’s equipped with a newrefrigerant called R-1234yf, that’s more environmentallyfriendly than traditional refrigerant R-134a. A newbrushless blower motor helps eliminate the tics andhums an HVAC system can create, providing a quietercabin.

IntelliBeam® Headlamps

IntelliBeam® headlamps let drivers enjoy the benefitsof better road illumination and improved visibility fromthe vehicle’s high beams without the inconvenience ofconstantly switching them ON or OFF. This advancedheadlamp technology uses an optical sensor integratedin the interior mirror mounting to automatically detectwhen the driving environment has become too dark fornormal headlamp operation, and then seamlesslyactivates the high beams. IntelliBeam® headlamps alsodetect the intensity of approaching light (e.g., that froman oncoming vehicle) and temporarily switches tonormal beams so the approaching driver’s vision is notimpaired by the high beams. In addition, the featureswitches to normal beams when Traverse comes to astop, such as at an intersection or stop sign. Thefeature can be overridden anytime the driver choosesby manually switching from normal to high beams orvice versa.

OnStar® with 4G LTE and Wi-Fi

With OnStar® 4G LTE and Wi-Fi, up to seven devicessuch as smartphones, tablets and laptops can beconnected to high-speed Internet through the vehicle’sbuilt-in Wi-Fi hotspot. The built-in 4G LTE Wi-Fi hotspothas a 3GB/3-month trial (may not be available in allcountries); whichever comes first and comes standardon all models, (high-speed internet may not beavailable in all areas). The powerful OnStar®connection also enables improved access to existingOnStar® safety and security services, including theability to transmit voice and data simultaneously. Thatmeans OnStar® advisors can run a diagnostic checkwithout ever leaving the call, making customerinteractions quicker and more seamless. It’s the mostcomprehensive in-vehicle safety and connectivity

system available. For assistance, press the blueOnStar® button or call 1-888-4-ONSTAR(1-888-466-7827).

Power Liftgate— Hands Free

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Notice: The Chevrolet bowtie logo may not bevisible in all conditions, such as on snow-coveredground, gravel or on a bright, sunny day, however,the hands-free functionality will still work.With the available power liftgate with hands-freefunctionality, customers can open and close the liftgateby simply using a kicking motion (i.e., forward and up,like kicking a soccer ball) to interrupt the Chevroletbowtie that is projected onto the ground by an LEDlamp under the rear bumper. This is a greatconvenience when approaching the vehicle with handsfull or when unloading items from the rear cargo area.When the key fob is within 10 feet (3 m) of the back ofthe vehicle, a 4-inch wide Chevrolet bowtie will beprojected in white light onto the ground. The hands-freepower liftgate also includes a new programmablememory height that can be set for easy reach or toaccommodate areas with low ceilings.The center high-mounted stop lamp (CHMSL), locatedat the top of the liftgate, has nine LEDs. The licenselamps are incandescent bulbs; however, they switch toLED if the vehicle is equipped with the available RearCamera Mirror.


Radio— Chevrolet MyLink™

Overview

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The Traverse is equipped with Chevrolet MyLink™which offers Apple CarPlay™ and Android Auto™compatibility, and depending on the model is equippedwith either the standard 7-inch (179 mm) or an available8-inch (203 mm) diagonal color touch-screen display.Traverse’s touch-screen display and center controls areoriented vertically to make them easy to see and use.For more information about the MyLink™ system visitmy.chevrolet.com/learn and in Canada, visitchevrolet.ca/owner-centre.html OR fr.chevrolet.ca/owner-centre.html

Chevrolet MyLink™ with 7-Inch Diagonal ColorTouch Screen — RPO IOA

This 7-inch diagonal color touch-screen display isheavily reliant on the customer ’s brought-in mediadevices (e.g., smartphones, MP3 players, etc.) toprovide content and features. Voice recognition, forexample, is not embedded into the vehicle. Instead,when the customer uses the steering wheel-mountedvoice control button, he/she will pass-through to his/herconnected smartphone and leverage the voicerecognition capabilities of the device. Factory-installedNavigation is not available with Chevrolet MyLink™with the 7-inch diagonal touch-screen. However, thesystem’s compatibility with Apple CarPlay™ andAndroid Auto™ lets customers with compatible phonesproject Navigation from certain smartphone apps ontothe touch-screen display.Features include:– 7-inch diagonal, capacitive touch-screen offers a

high-resolution, full-color display.– Physical buttons and knobs, in addition to

touch-screen options, let the occupants easily andquickly control basic infotainment functions.

– A simple and intuitive icon-based interface that’ssimilar to many consumer electronics.

– Hands-free calling with access to address bookthrough Bluetooth® wireless technology for selectphones.

– Apple CarPlay and Android Auto compatibility.– Bluetooth® audio streaming.– Smartphone voice recognition pass-through.– Siri® Eyes Free.

Chevrolet MyLink™ with 8-Inch Diagonal ColorTouch Screen — RPO IO5

The 8-inch diagonal capacitive-touch screen displayoffers the most complete and intuitive experience forcustomers. It provides maximum functionality toaccommodate their needs while working to minimizedistraction with features that allow them to keep theirfocus on the road and off their phone. This is anenhanced version of the 8-inch MyLink™ system that isfound on several other models in the current Chevroletportfolio. It features several performance upgrades andnew features, such as the ability to downloadin-vehicle apps.Features include:– 8-inch diagonal, capacitive touch-screen offers a

high-resolution, full-color display.– In-vehicle apps via Shop.– Fast, accurate voice recognition (embedded and

pass-through), now including partial name speechrecognition.

– Enhanced radio tuning flexibility allowing thecustomer to directly tune to stations (AM/FM/SiriusXM®).

– Ability to browse Bluetooth® audio files, similar toUSB browsing.

– Supports Teen Driver.– Cluster integration: Many of the functions available

on the 8-inch diagonal color touch-screen display arealso available within a 4.2-inch diagonalhigh-resolution color cluster display.

– Hands-free calling with access to address bookthrough Bluetooth® wireless technology.

– Bluetooth® audio streaming for up to 10 devices.– Ability to store up to 60 radio presets, songs, genres,

albums, artists, destinations and playlists for quickand easy access.

– Gesture recognition control that lets drivers use theirfingertips to navigate through menus and withinscreens by flinging, clicking and dragging andswiping.

– Natural language voice recognition control that letsdrivers use conversational voice commands tocontrol the phone and audio system (embedded andpass-through).

– OnStar® integration.– If multiple media devices are in the vehicle and

connected by the USB, MyMedia will aggregate themusic contained on each into one playlist for easyaccess.

– iTunes® Tagging for SiriusXM® Satellite Radio.– XM Satellite Radio All Access Trial Package (with

subscription).


– SiriusXM TuneSelect.– Text Message Alerts.– Siri® Eyes Free control for iPhone® running iOS 6 or

later.

Chevrolet MyLink™ with 8-Inch Diagonal ColorTouch Screen and Navigation — RPO IO6

The 8-inch diagonal capacitive-touch screen displaycan be enhanced with available embedded Navigationto help customers conveniently route to destinationswith uncomplicated turn-by-turn directions. TheNavigation features can be accessed using thetouch-screen, voice command or within the clusterusing steering wheel-mounted buttons. The systemalso offers fast searches of more than 1.5 million Pointsof Interest (POI). Navigation also lets drivers storeindividual POI in their area, such as a specificStarbucks® location, and gives them turn-by-turn routeguidance. When using the route guidance feature,drivers can cancel the route and turn voice prompts onor off via the touch-screen. They will also see whatstreet they are currently driving on and a nextmaneuver indication in the center stack display.Navigation features include:– 3-D map views for most major U.S. cities and

attractions.– Maps come loaded on the system and are

upgradeable via USB– Map updates are available once per year and must

be purchased through the map data supplier’swebsite (http://allthingsnav.navigation.com/)

– Drivers can zoom in and out on a map via the zoomicon on the touch-screen or by turning the radio dial.

– Ability to save destinations to favorites.– Multiple ways to search for destinations and

easy-to-find icons to mute Navigation voice or cancelroute.

– Drivers can search for destinations by address,intersection, points of interest, recent routes or fromwithin their stored vehicle contacts.

– SiriusXM NavTraffic and Travel Link® (withsubscription) adds traffic, weather, fuel priceinformation and movie listings to the Navigationsystem.

Hidden Storage Bin

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The 8-inch (203 mm) diagonal color touch-screen has aflat design that’s similar to a tablet. It also articulates toreveal a hidden storage bin and an additional USB port.The bin can be protected with valet mode, which letsan unfamiliar person take the wheel but shieldspersonal items and information from prying eyes. Usingvalet mode, the touch-screen doubles as aPIN-activated, retractable faceplate over the securestorage bin. Traverse owners will be able to accessvalet mode through the Settings menu via a four-digitcode, much like on a hotel safe. A confirmation entry ofthe code simultaneously locks the bin and securespersonal information.

Rear Seat Reminder Look in Rear Seat

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Typical View of a Rear Seat Reminder Look in RearSeat Message


If equipped, the Rear Seat Reminder Look in Rear Seatmessage displays under certain conditions indicatingthere may be an item or passenger in the rear seat. TheRear Seat Reminder system works by monitoring theoperation of the rear doors. The feature is intended toactivate when the rear door is opened and closedwithin 10 minutes before the vehicle is started or if therear door is opened and closed while the vehicle isrunning. Under these circumstances, the next time thevehicle is turned OFF after a door activation, thevehicle will sound five audible chimes and display amessage in the DIC that states: Rear Seat ReminderLook in Rear Seat .

Safety— Driving/Parking AssistanceSystems

Warning: DO NOT rely on the Driver AssistanceSystems. These systems do not replace the needfor paying attention and driving safely. You may nothear or feel alerts or warnings provided by thesesystems. Failure to use proper care when drivingmay result in injury, death, or vehicle damage.

• Cruise Control: The cruise control lets thevehicle maintain a speed of about 25 mph(40 km/h) or more without keeping your foot on theaccelerator. Cruise control does not work atspeeds of less than 25 mph (40 km/h).

• Forward Automatic Braking: If the vehicle hasForward Collision Alert (FCA) , it also has ForwardAutomatic Braking (FAB), which includesIntelligent Brake Assist (IBA). When the systemdetects a vehicle ahead in your path that istraveling in the same direction that you may beabout to crash into, it can provide a boost tobraking or automatically brake the vehicle. Thiscan help avoid or lessen the severity of crasheswhen driving in a forward gear. Depending on thesituation, the vehicle may automatically brakemoderately or hard. This forward automaticbraking can only occur if a vehicle is detected.This is shown by the FCA vehicle ahead indicatorbeing illuminated. The system works when drivingin a forward gear between 5 mph (8 km/h) and 50mph (80 km/h), or on vehicles with AdaptiveCruise Control (ACC), above 2 mph (4 km/h). Itcan detect vehicles up to approximately 197 ft(60 m).

• Forward Collision Alert: If equipped, the FCAsystem may help to avoid or reduce the harmcaused by front-end crashes. When approachinga vehicle ahead too quickly, FCA provides a redflashing alert on the windshield and rapidly beeps.FCA also lights an amber visual alert if followinganother vehicle much too closely. FCA detectsvehicles within a distance of approximately 197 ft(60 m) and operates at speeds above 5 mph (8km/h). If the vehicle has Adaptive Cruise Control(ACC), it can detect vehicles to distances ofapproximately 360 ft (110 m) and operates at allspeeds. FCA is a warning system and does notapply the brakes.

• Lane Change Alert: If equipped, the LaneChange Alert (LCA) system is a lane-changing aidthat assists drivers with avoiding lane changecrashes that occur with moving vehicles in theside blind zone (or spot) areas or with vehiclesrapidly approaching these areas from behind. TheLCA warning display will light up in thecorresponding outside side mirror and will flash ifthe turn signal is ON.

• Lane Departure Warning: Lane DepartureWarning (LDW) may help avoid crashes due tounintentional lane departures. It may provide awarning if the vehicle is crossing a detected lanemarking without using a turn signal in the lanedeparture direction. This system is part of theLane Keep Assist (LKA) system.

• Lane Keep Assist: If equipped, Lane KeepAssist (LKA) may help avoid crashes due tounintentional lane departures. It may assist bygently turning the steering wheel if the vehicleapproaches a detected lane marking without usinga turn signal in that direction. It may also provide aLane Departure Warning (LDW) system alert asthe lane marking is crossed. The LKA system willnot assist or provide an LDW alert if it detects thatyou are actively steering. Override LKA by turningthe steering wheel. LKA uses a camera to detectlane markings between 37 mph (60 km/h) and 112mph (180 km/h).

• Rear Cross Traffic Alert: If equipped, RearCross Traffic Alert (RCTA) shows a red warningtriangle with a left or right pointing arrow on theinfotainment display to warn of traffic coming fromthe left or right. This system detects objectscoming from up to 20 m (65 ft) from the left or rightside of the vehicle. When an object is detected,three beeps sound from the left or right,depending on the direction of the detected vehicle.Use caution while backing up when towing atrailer, as the RCTA detection zones that extendout from the back of the vehicle do not movefurther back when a trailer is towed.

• Rear Parking Assist : If equipped, Rear ParkingAssist (RPA) uses sensors on the rear bumper toassist with parking and avoiding objects while in R(Reverse). It operates at speeds less than 5 mph(8 km/h). The instrument cluster may have aparking assist display with bars that show“distance to object” and object location informationfor RPA. As the object gets closer, more bars lightup and the bars change color from yellow toamber to red. When an object is first detected inthe rear, one beep will be heard from the rear.When an object is very close, less than 2 ft (0.6 m)in the vehicle rear, five beeps will sound.

• Rear Vision Camera: When the vehicle isshifted into R (Reverse), the Rear Vision Camera(RVC) displays an image of the area behind thevehicle in the infotainment display. The previousscreen displays when the vehicle is shifted out ofR after a short delay. To return to the previousscreen sooner, press a button on the infotainmentdisplay, shift into P (Park), or reach a vehicle


speed of 5 mph (8 km/h). Select Guidance Lineson the camera screen to enable or disable theguidance lines.

• Front Pedestrian Braking: If equipped, theFront Pedestrian Braking (FPB) system may helpavoid or reduce the harm caused by front-endcrashes with nearby pedestrians when driving in aforward gear. FPB displays an amber indicator,when a nearby pedestrian is detected directlyahead. When approaching a detected pedestriantoo quickly, FPB provides a red flashing alert onthe windshield and rapidly beeps. FPB canprovide a boost to braking or automatically brakethe vehicle. This system includes Intelligent BrakeAssist (IBA), and the Forward Automatic Braking(FAB) system may also respond to pedestrians.The FPB system can detect and alert topedestrians in a forward gear at speeds between8 km/h (5 mph) and 80 km/h (50 mph). Duringdaytime driving, the system detects pedestriansup to a distance of approximately 40 m (131 ft).During nighttime driving, system performance isvery limited.

• Side Blind Zone Alert: If equipped, the SideBlind Zone Alert (SBZA) system is alane-changing aid that assists drivers withavoiding crashes that occur with moving vehiclesin the side blind zone (or spot) areas. When thevehicle is in a forward gear, the left or right sidemirror display will light up if a moving vehicle isdetected in that blind zone. If the turn signal isactivated and a vehicle is also detected on thesame side, the display will flash as an extrawarning not to change lanes. This system is partof the LCA system.

Smart Slide Seating

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The enhanced Smart Slide second-row seat on thepassenger side of the vehicle can be slid and angledforward, allowing passengers easy access to thethird-row seats — even when a car seat is in place.

Storage— Cargo Management System

Beneath the rear load floor above the spare tire is asubfloor compartment that offers about 3.2 cu. ft. ofadditional storage space. The area is 10 inches (254mm) deep, with a carpet-lined split cover that can befolded in half or removed altogether. The spare tire islocated in another level lower, so the items in thesubfloor compartment are kept separate and clean.This area is a great place to conceal larger personalitems, such as a laptop or a small purse and is alwaysaccessible, even when the seats are folded down.There are four tie-downs that can be used to helpsecure items in the cargo area. When there is a need totransport larger items, they can manually fold down thesecond- and third-row seats to create a flat load floorwith a folded angle of just 3 degrees. For addedconvenience, the High Country model has a standardpower folding third row, controlled by buttons locatedon the passenger-side of the cargo area.

Cargo Management System

To access, perform the following:1. Lift the load floor to access the cargo management

system.

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2. The hold open devices on the cargo bin allow theload floor to remain open without removal.


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3. The cargo management system is used toorganize storage in the cargo area. There are twoconvenience hooks that can support up to 11 lb(5 kg).

4. After storing items in the cargo managementsystem, make sure to properly latch the load floor.

Spare Tire Removal

To access the spare tire, the cargo managementsystem must be removed.1. Open the cargo cover.2. Remove the four wing nuts.

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3. Lift up on the handles on both sides to remove thecargo management system to access thespare tire.

4. The storage bin can be placed on the lowered thirdrow seats while accessing the spare tire.

Spare Tire Installation

1. Install the cargo management system in thevehicle.

2. Install the four wing nuts.

Warning: An improperly latched cargo cover, orcargo cover left in the open position, couldseparate during a crash or sudden maneuverpotentially impacting vehicle occupants. Someonecould be injured. Be sure to return the cover to theclosed position and latch before driving.

3. Make sure to properly latch the load door.

Surround Vision

Surround Vision

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Notice: The Surround Vision cameras have blindspots and will not display all objects near thecorners of the vehicle. Folding side mirrors that areout of position will not display the Surround Visionview correctly.

New for the 2018 Traverse is Surround Vision, atechnology that provides a literal look at the vehicle’sperimeter. The system uses strategically locatedcameras on all sides of the vehicle to provide a360-degree bird’s eye view of the vehicle, helpingdrivers quickly view the surrounding area at a glance,for more confident maneuvering when reversing,parking or trailering. Surround Vision displays thisimage of the area surrounding the vehicle, along withthe front or rear camera views in the infotainmentdisplay.


Surround Vision Viewing Areas

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1 Areas displayed by Surround Vision.2 Areas not displayed by Surround Vision.

Sunshade

Proper Sunshade Operation

Notice: In order to unlatch the Sunshade, you mustpinch the button and push up on the sunshadeinstead of pinching the button and pulling it back.

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The front sunshade can be manually opened but mustbe manually closed. If equipped, the rear sunshade canonly be opened or closed manually. To open, press thelatch button on the handle while pushing up to unlatchit. The sunshade will retract to the open position. Toclose the sunshade, pull the handle forward until itlatches. Do not try to close the sunshade while thesunroof is fully opened or in the vent position.

Switchable All-Wheel Drive

Switchable All-Wheel Drive (AWD) Overview

Switchable AWD technology is a great benefit forimproved traction and control because it distributestorque to all four tires on a vehicle. Its advantages areunmistakable and also has a big impact on fueleconomy. Switchable AWD lets the customer switchbetween FWD and AWD operation when conditionsdictate, without having to stop the vehicle. The AWDMode will stay selected until the mode is changed. Ifthe customer switches to FWD, the system efficientlydisconnects virtually all of the AWD components fromthe drivetrain so the gears and prop shafts stopspinning to save fuel and reduce emissions. AWDcapability is still available, ready for the driver toengage it when necessary, but they must remember toengage AWD when needed, as the system does notreact to road conditions automatically. However, if thesystem senses that the customer may be stuck orlosing traction, a DIC alert will remind them toengage AWD.

Driver Mode Control (Traction Select)

One of Traverse’s most useful ride and handlingenhancements is the implementation of Traction Select,which, with the simple turn of a console-mounted rotarydial, lets customers select the mode in which they wantthe vehicle to operate. Based on the mode chosen, itadjusts the vehicle’s throttle response, shift mappingand stability control to maximize performance in varyingroad and surface conditions. If equipped withFront-Wheel Drive (FWD), the Driver Mode Control may


have the following mode selections: FWD, Snow, andTow/Haul. If equipped with All-Wheel Drive (AWD), theDriver Mode Control may have AWD, Two-Wheel Drive(2WD), Off-Road, and Tow/Haul. Turn the control knobon the console to make a mode selection. The icons onthe knob will illuminate to indicate which mode is active.A DIC message will display and indicate what mode isON when switching to different modes.

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Control Knob AWD

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Control Knob FWD• NORMAL: This is the setting for everyday driving.

The vehicle is either in FWD for non AWDvehicles, or Two-Wheel Drive for AWD vehicles.This mode will remain active through futureignition cycles. Use this mode for normal drivingconditions. This is the most fuel efficientdriving mode.

• 4X4 / SNOW: 4x4 mode (AWD) and Snow mode(FWD) offer better control when snow and icemakes road conditions slippery.

• OFF-ROAD: Available on AWD models, Off-Roadmode sends more torque to the rear wheels forimproved driving on snow, grass, gravel or loosedirt. When Off Road (AWD models only) isselected the vehicle will default back to Normal onthe next ignition cycle.

• TOW / HAUL: When equipped with the availabletrailering package, Tow/Haul mode keepsTraverse in a lower gear, offering more torquewhen pulling a trailer. When Tow/Haul (ifequipped) is selected, the vehicle will default backto Normal on the next ignition cycle.

Teen Driver

Teen Driver Feature

Teen Driver is a configurable feature supported byChevrolet MyLink™ that lets parents manage certainvehicle settings to encourage safer driving by theirteenager. Using a PIN to configure settings for one ormore key fobs, parents can set a volume limiter for theradio and a set maximum speed warning that willdeliver a visual warning and an audible chime when theconfigured speed limit is exceeded. In addition, avisible warning will be displayed until the vehicle’sspeed drops below the threshold. An additional,optional speed limiter can be set. When Teen Driver isactive, the radio is muted if the teen (or frontpassenger) is not wearing his/her safety belt, and allequipped active safety systems are defaulted to ONproviding a safer driving experience.


Teen Driver Report Card

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Teen Driver also provides parents with awareness oftheir teenager’s driving habits through a Report Cardfeature. The in-vehicle Report Card will report thedistance driven and maximum speed, as well asindicate which of the Teen Driver warnings wereactivated. If the vehicle is equipped with availableForward Collision Alert or Low-Speed ForwardAutomatic Braking, the Report Card will show how oftenthe safety alerts were triggered.

Transmission

9T65 Automatic 9-Speed — RPO M3V

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Typical View of the 9T65The 9T65 is a fully automatic, 9-speed, transversemounted, electronic-controlled transmission. It consistsprimarily of a 4-element torque converter, a compound

planetary gear set, friction and mechanical clutchassemblies, and a hydraulic pressurization and controlsystem.The 4-element torque converter contains a pump, aturbine, a pressure plate splined to the turbine, and astator assembly. The torque converter acts as a fluidcoupling to smoothly transmit power from the engine tothe transmission. It also hydraulically providesadditional torque multiplication when required. Thepressure plate, when applied, provides a mechanicaldirect drive coupling of the engine to the transmission.The planetary gear sets provide the 9 forward gearratios and reverse. Changing gear ratios is fullyautomatic and is accomplished through the use of atransmission control module (TCM). The TCM receivesand monitors various electronic sensor inputs and usesthis information to shift the transmission at theoptimum time.Use DEXRON®-VI Transmission Fluid in the 9T65.

Twin-Clutch Advanced AWD

Overview

The High Country will feature a twin-clutch AdvancedAWD system that independently controls torque to eachrear wheel, giving drivers superior control with lessbrake intervention, if any at all. The LS, LT, Premier andRedline AWD models will be equipped withsingle-clutch AWD. Advanced AWD is automatic andalways engaged when AWD mode is selected.


Twin-Clutch Advanced AWD Advantages

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The Active Twin Clutch (1) Advanced AWD systemdelivers greater handling, stability and driverconfidence by preemptively and electronically splittingthe torque as needed between the rear wheels usingtwin clutches (2) to provide additional traction, stabilityand control versus a 50/50 split in a single clutchsystem.It provides the following benefits:• Enhanced traction, stability and performance

during vehicle acceleration and cornering duringdry normal conditions.

• Optimal handling and improved traction in wet/snowy/icy conditions.

• Improved vehicle response when road traction isnot uniform, such as when the right side of thevehicle is on ice and the left side is on drypavement.

• Active Twin Clutch with active torque bias hasincreased capability to add stability across alldriving conditions.

• A fuel economy benefit is realized by not pushingtorque when it is not needed.


Lifting the Vehicle

Vehicle Lifting – Frame Contact Lift

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Front Lift Pads: When lifting the vehicle with aframe-contact lift, place the front lift pads on the frontcompartment outer side rail extension (2), as shown.Rear Lift Pads: When lifting the vehicle with aframe-contact lift, place the rear lift pads on theunderbody rear side rail extension (1), as shown.

Service Tips

Exterior

These service procedures differ from the previousmodel year vehicle. Please review.• Outside Rearview Mirror Fasteners: Fastening

design is bolt through door sheet metal, no studson mirror base.

• Rear Door Upper Reveal Moldings: “Football”clips on run channel/glass assembly hold moldingin place. Use trim stick and twist (do not pullstraight off) to release molding or clips will break.Aluminum upper molding will bend easily if cautionis not used.

• Roof Rack/Ditch Moldings: Studs through roofhold on the roof rack. The headliner will need to beremoved to service. Ditch moldings are now

clipped in and it is hard to prevent damaging themwhen removing. They may require replacementwhen servicing.

Interior

These service procedures differ from the previousmodel year vehicle. Please review.• Door Trim Removal: Two screws located at the

bottom of the door trim must be removed in orderto remove the door trim.

• Headliner Material: More robust headlinermaterial, easier to remove by tilting headlinerdown on RH side and remove through the liftgateopening.


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• Headliner Removal: Must remove ¼ trim on RHside to prevent the rear air duct from breaking theintegrated duct work in the headliner.

• Overhead Console: Care should be taken whenpulling down the garage door opener bezel toprevent damage to the wiring harness connector.Since the harness is glued to the headliner,carefully removing the bezel will prevent damageto the connector.

• One Piece Glovebox: One piece glovebox thatincorporates into the knee bolster means that theconsole needs to be removed to service theglovebox.

• Steering Wheel Shroud: Steering wheel shroudis incorporated into the cluster trim as a one pieceunit that will require removal of the steering wheelto service.

• Driver Airbag: Driver airbag removal will requireturning the wheel left, right, then bottom side up torelease spring fasteners in order to remove.

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Special Tools

The following new tools were released for the 2018Traverse:

Special Tools— Tool Number and DescriptionTool Number Description

DT-48022 Bushing Installer

DT-51834 Seal Installer, RH Input & Pinion Cassette

DT-51835 Seal Installer, LH Input & IDS Cassette

EN-51332 Fuel Line Release Tool

Training Courses

The majority of the systems found on this vehicle aretaught in GM’s core curriculum from a conceptualtheory and operation perspective. The North Americantechnical training core curriculum structure is systembased.To access all of the available training courses in theUnited States, visit the following website:www.centerlearning.comIn Canada, Go to: GM GlobalConnect and selectCentre of Learning

Training Course Name or System— Course Number and DescriptionCourse Name or System Course Number and Description

New Model Feature #10318.41W — 2018 Chevrolet Traverse New Model Feature(WBT) (United States and Canada)

Brakes #15045.18W6 — GM Braking Systems 6 (United States andCanada)

Engines #16440.17D-V— Engines: New and Updates for LCV, LTGand LL0 (US only)


Training Course Name or System— Course Number and Description (cont'd)Course Name or System Course Number and Description

#16440.22D — Engines: New and Updates for RPO’s LFY,LV1, LHN, LYX, L5P and LH7 (US only)

Infotainment #19047.23D-R2 — MOST Network Diagnostics andInfotainment Systems Programming (US only)

Transmission #17440.17D — New & Updates for 9T50 and 10R90 & ETRSfor Aisin Af-50 Automatic Transmissions (US only)

Safety Systems #22048.42W3 GM Safety Systems 3 (United States andCanada)

Safety Systems #22048.42W2-R2 — GM Safety Systems 2 (Surround Vision,US & Canada)

Version Information

Version 2

Modified August 10, 2017 – Added a section and a graphic for Sunshade Operation.

Trademark Footnotes

ACDelco® is a Registered Trademark of GeneralMotors LLCAndroid™ is a Trademark of Google Inc.Android Auto™ is a Trademark of Google Inc.Apple® is a Registered Trademark of Apple Inc.Apple CarPlay™ is a Trademark of Apple Inc.The Bluetooth® Word Mark and Logos areRegistered Trademarks Owned by BluetoothSIG, Inc.Chevrolet MyLink™ is a Trademark of GeneralMotors LLCdexos® is a Registered Trademark of GeneralMotors LLC

dexos1® is a Registered Trademark of GeneralMotors LLCdexos1® Icons are Registered Logos of GeneralMotors LLCDEXRON®-VI is a Registered Trademark of GeneralMotors LLCDuralife™ is a Trademark of General Motors LLCGoogle® is a Registered Trademark of Google Inc.IntelliBeam® is a Registered Trademark of GeneralMotors LLCiPhone® is a Registered Trademark of Apple Inc.OnStar® is a Registered Trademark of OnStar LLCSiri® is a Registered Trademark of Apple Inc.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform thesetechnicians of conditions that may occur on some vehicles, or to provide information that could assist in the properservice of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do ajob properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that yourvehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from theinformation.

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CERTIFICATION

Documents

File in Section: - Service Bulletin INFORMATION · 2018-12-13 · Page 4 August, 2017 Bulletin No.: 17-NA-176 • Body-color lower moldings with chrome inserts. • Silver front and