August 2010Volume 12, No.8

Customer Care and Aftersales

Contents

continued on page 2

GM has updated the Techline PC anddealership infrastructure guidelines. Thesenew guidelines are designed to ensure aseamless and reliable conduit for GM-to-dealer data communications at all timesto all departments in the dealership.

To view the guidelines, go towww.gmdesolutions.com, click TechlineIT Solutions, and then click GM IT Stan-dards.

(In Canada, refer to the GM CanadaDealer Infrastructure Guidelines in theService Library of GlobalConnect.)

The guidelines include information onthe following recommended/required IT infrastructure, hardware and softwarefor the general dealership and service department:

• PC Hardware• PC Software• Local Area Network (LAN)

Configuration Guidelines• Minimum Internet BandwidthOnly business grade hardware that

meets or exceeds the updated specifi-cations will be supported by GM.

In the service department, Techline requires one PC for every two techni-cians. In addition, for Service Program-ming System (SPS) purposes, a

dealership may need to purchase a USBdrive 2.0 (512 MB or greater) to use duringradio/navigation system or instrumentpanel cluster programming.

It is the dealership’s obligation to meet

Updated Techline PC and DealerInfrastructure Guidelines

the specified PC and network require-ments outlined in the guidelines.

Recommended and MinimumRequirements

Recommended and Minimum guide-lines are provided for hardware, includingdesktop PCs, laptop (or notebook) PCs,tablet PCs, and PC software as well aswireless network standards.

Recommended guidelines are for purchasing new hardware that willdeliver performance and security whilemaximizing the lifecycle of the invest-ment. Minimum guidelines list thelowest acceptable systems already inuse at the dealership.

A number of certified service depart-ment PC models are listed in the guidelines. However, other PC models

Recommended and Minimum specification guidelines are provided for desktop,

laptop (shown) and tablet PCs.

Updated Techline PC and Dealer Infrastructure Guidelines . . . . . . . .1GDS 2 Coming Soon . . . . . . . . . . . . . . .2New Technician Poll on SI Forum . . . . . . .2Expanded Customer Concern Not Duplicated Labor Operation Numbers . . . .3A/C Compressor Will Not Engage . . . . . .3Two-Mode Hybrid Sequential Programming . . . . . . . . . . . . . . . . . . . .4Intermittent No Crank or Dead Battery Condition . . . . . . . . . . . . . .4Broken Antenna Mast . . . . . . . . . . . . . .4New Transfer Case Terminology . . . . . . . .5Excessive Road Noise . . . . . . . . . . . . . . .5Submitting Digital Photographs with Field Product Reports . . . . . . . . . . . . . .6Servicing Corvette HVAC Actuators . . . . .7Clutch Pedal Sticks to the Floor or Stays Low . . . . . . . . . . . . . . . . .7Headlamps and Reminder Chime Inoperative . . . . . . . . . . . . . . . . .7Fix It Right the First Time . . . . . . . . . . . .8Service Know How . . . . . . . . . . . . . . . . .8

The latest technician poll on the Service Information forums websiteasks technicians about their preferred method for diagnosing the locationof a small exhaust leak (when a DTC is set) when other methods (visualor by sound) have failed to pinpoint the location.

To vote in the poll, go to the SI forums at http:/service.gm.com. Clickthe Forum tab at the top of the page to log in. If you’re not a member,simply register for access to vote.

A new poll with a couple of questions is posted regularly. Participantssee a tally of the voting results immediately after voting.

Your inputfrom a tech -nician perspectiveis importantand plays a significant rolein changesmade by GMthat affect technician productivityand customerservice. Makeyour voiceheard by votingtoday.

– Thanks toLisa Scott

2 August 2010

PC and Dealer Infrastructure Guidelines –continued from page 1may be purchased as long as they meet or exceed thebusiness grade recommendations.

Operating SystemsCurrently, the recommended operating system (OS)

is Windows® 7 Professional, 32 bit. Dealerships may purchase equipment and software with operating speedsand capacities that exceed the recommended specifica-tions based on their needs and product availability.

The guidelines also provide LAN configuration specifications. These include wireless network standards, security guidelines (individual PCs and networks), and programming tool connections.

IT SupportThe guidelines should be reviewed by the dealership’s

IT department or local IT consultant and the dealership’sIT security administrator to help ensure dealership compliance and reliable network communication withinthe dealership and with GM in order to meet allbusiness needs.

For more information, contact:• GM Dealer Equipment

www.gmdesolutions.com1-800-GMTOOLS

• Techline Customer Support Center1-800-828-6860 (English) or 1-800-503-3222(French)

– Thanks to Lisa Scott

GDS 2 Coming SoonIn the spring of 2009, General

Motors released the Global Diag-nostic System (GDS) as a newgeneration of scan tool. The de-sign of the new tool was basedon using the power and flexibilityof a personal computer (PC) withthe Multiple Diagnostic Interface(MDI) tool as an interface module. This step forwardin diagnostic tools puts all of the technicians tools onthe same PC — TIS2WEB, SI and GDS.

Over the past year, there have been several improvements to the functionality of GDS; however,due to unforeseen authoring limitations and user per-formance issues, there is still room for improvement.Later this year, an updated version of the application,labeled as GDS 2, will be released. The new versionwill run faster, update easier, and offer several en-hanced features.

While GDS 2 will be a new applicationfeaturing more efficient strategies and flow, itwill not require a change to the recommended hard-ware guidelines (currently available at www.gmdeso-lutions.com for U.S. dealers or GM GlobalConnectfor Canadian dealers). It’s critical to have the properhardware to run the application in order to achievethe best performance. In addition, the new applica-tion will be easy to use, keeping the training require-ments to a minimum.

Look for more news and details about GDS 2 com-ing soon.

– Thanks to Matt Singer

New Technician Pollon SI Forum

August 2010 3

New electrical labor operation numbers have been established for Customer Concern Not Duplicated (CCND) transactions in the service department. The labor operation numbers for CCND N9995 –Electrical andR9995 – Accessories have been eliminated and replaced with labor operation numbers that cover more specific parts of the electronic systems in today’s vehicles.

The CCND transaction must include the following information in theGlobal Warranty Management (GWM) System:

• Complaint Code – 4-character code indicating the complaint

• Complaint Description – text field to describe customer’s complaint,be as detailed and specific as possible

• Cause Code – 4-character code indicating the cause of failure

• Cause Description – text field to describe the cause of failure and reason for repair, include any DTCs if applicable

• Correction Description – text field to describe the correction for thefailure, include what was done when trying to duplicate the CCNDcondition

These new labor operation numbers will not appear in the labor timeguide until the August 2010 release. The times for the CCND labor operations have not changed.

TIP: In some cases, the vehicle may be operating as intended but notin line with customer expectations. This does not fall under the definitionof a Customer Concern Not Duplicated. Instead, a Field Product Reportshould be submitted. Refer to bulletin #02-00-89-002I (U.S.) or 10-00-89-006 (Canada).

A CCND claim can only be made when, after the customer’s concernshave been confirmed by the service consultant, it’s necessary to assign atechnician to diagnose the vehicle and the result is no trouble found.

For more information about the new CCND labor operation numbers and examples of when to use each number, refer to bulletin #06-00-89-026D

– Thanks to Marty Case

D9995 Heating and Air Conditioning

E9995 Tires, Wheels, Suspension and Steering

F9995 Axle and Differential (All RWD Vehicles)

H9995 Brakes

J9991 Engine Mechanical

J9992 Engine Fuel

J9993 Engine Electrical

J9994 Engine Cooling

J9995 Engine Emission

K9991 Manual Transmission – Clutch

K9992 Manual Transmission

K9993 Transfer Case

K9995 Automatic Transmission

L9995 Exhaust

N9991 OnStar/Bluetooth

N9992 I/P Cluster/HUD

N9993 Safety/Body Electronics

N9994 TPM System

N9996 Entertainment/Radio/Navigation/USB

N9997 Battery/Charging System

N9998 Hybrid Electronics

The CCND labor operations numbers are(new numbers in bold):

A/C CompressorWill Not Engage

The air conditioning may be inoperative onsome 2008-2010 Cobalt, G5, and 2008-2011 HHR models equipped with RPO C60 or C67. Diagnosis may reveal that the A/C compressorwill not engage and there are no DTCs stored.

In addition, scan tool ECM data may indicateNo for the A/C Request and A/C Relay Command.The A/ C Pressure Sensor value is 0 psi. This condition may be caused by an incorrect BCMSetup during a previous repair.

Attempt to enable the A/C option in the BCM.If the option is not listed, replace the BCM.

When setting up the BCM, be sure that all correct vehicle options are selected. Some of theoptions only appear during the initial BCM Setupprocedure.

– Thanks to Ernest Haller

Expanded Customer Concern Not DuplicatedLabor Operation Numbers

Provide as much detail as possible when completing the GWM input screen

4 August 2010

Two-Mode Hybrid Sequential ProgrammingThe MDI or Techline

PC may lock up duringSPS sequential programming on some2009-2011 Escalade Hybrid, Sierra Hybrid,Silverado Hybrid and2008-2011 Tahoe Hybridand Yukon Hybrid models (RPO HP2).

If the MDI or TechlinePC locks up during programming, record the last module thatwas programmed successfully and the module that locked upduring programming. A summary screen will usually display themodules that were programmed successfully and the modulesthat were not.

When performing SPS sequential programming, seven modules are being checked for updated calibrations in the following sequence: EBCM, MCMA, MCMB, HCP, ECM, TCMand BECM. If the calibration is already current, the TIS screen willindicate that the module was “skipped.”

Contact the Techline Customer Support Center at 1-800-828-6860 (French: 1-800-503-3222) for additional program-ming assistance.

In order to prevent a lock up condition or failed SPS program-ming it is important to maintain battery voltage between 12.5v to14.5v when performing any programming events. It may take up

to 45 minutes to com-plete the programming.During programming,the auto headlampsshould be left in the offposition. The 12v batteryalso can be drained in aslittle as 20 minutes if thekey is in the On positionwhen not in Autostop.Please review PIT4580Afor more Hybrid informa-tion. Only use an approved Midtronics165-PSC charger tomaintain properbattery voltage duringprogramming.

Best results are ob-tained by having the MDIconnected directly to the PC or notebook computer using an Ethernet or USB cable. If there is a wireless router, the terminalneeds to be within range specified by Techline. It is not recom-mended to use the wireless MDI option. Also ensure that thereis no interference from other devices. Please review PIT4889Afor more programming information.

– Thanks to Paul Radzwilowicz

Broken Antenna Mast

Underhood Battery Cable Junction Block location

An intermittent no crank or a dead battery condition may occur on some 2010 Camaros. In some rare instances, the engine may stall or various electrical components may turn off. Low voltage DTCs or loss of communication DTCs may bestored in various modules.

Inspect the battery cable connections in the Underhood Battery Cable Junction Blocklocated near the left front strut tower and at the Underhood Bussed Electrical Center(UBEC) for a poor connection. There may be signs of arcing on the terminal ends or excessive voltage drop across the connection.

Clean the terminals as required and reinstall the fastener.

– Thanks to Jeremy Richardson

Underhood Battery Cable Junction Blockwith cover removed

If the antenna mast has broken offof the roof-mounted antenna base on2010 SRX, Equinox or Terrain models,leaving the stud in the antenna base,replace only the antenna mast.

The antenna mounting base shouldnot be replaced if the antenna mast is broken. The broken antenna maststud can be easily removed from theantenna base by using needle-nosepliers or a flat blade screwdriver towalk the broken stud out of the an-tenna base.

– Thanks to Gordon Baillod

Antennas mast and mounting base with mast stud removed.

The 12v battery can be drained quickly if the key is in the On

position when not in Autostop.

Intermittent No Crank or Dead Battery Condition

August 2010 5

New Transfer CaseTerminology

Beginning with the 2011 model year, several changes are being made tothe terminology used to identify common transfer case components. Thesechanges were made to provide names that are more consistent across different models and with the names used in the parts catalog.

The new transfer case component terms are used on the scan tool and inthe Service Information for DTCs, data displays and output controls.

The table below provides some previously used transfer case componentnames and the new names. Component terms used in parameter and device control titles on the Tech 2 may be abbreviated or may use acronymsin order to comply with character restrictions for the display screen.

Previous Name 2011 Name

Two Wheel Drive High Range Indicator 2WD High Indicator Light

2WD High Range Indicator

Two Wheel Drive High Range Switch 2WD High Range Selection Switch

Transfer Case Synchronizer Coil 2WD/4WD Synchronizer Clutch

Auto 4WD Indicator LightAll Wheel Drive Indicator Four Wheel Drive Indicator

4WD Automatic Range Indicator

Four Wheel Drive Automatic Range Switch

4WD Automatic Range Selection Switch

Four Wheel Drive High Range Indicator4WD High Indicator Light

4WD High Range Indicator

Four Wheel Drive High Range Switch 4WD High Range Selection Switch

Four Wheel Drive Low Range Indicator4WD Low Indicator Light

4WD Low Range Indicator

Four Wheel Drive Low Range Switch 4WD Low Range Selection Switch

Front Axle Actuator Front Axle Engagement Actuator

Front Axle SwitchFour Wheel Drive Switch

Front Axle Engagement Feedback Switch

Encoder Transfer Case Motor

Range Actuator

Motor A CircuitMotor B Circuit

Range Actuator Control Circuit A Range Actuator Control Circuit B

Transfer Case LockTransfer Case Module Lock

Range Actuator Lock

Incremental Sensor Range Actuator Position Sensor

Transfer Case Incremental SensorDirection Circuit

Range Actuator Position Sensor DirectionSignal

Transfer Case Clutch Calibration ResistorClutch Resistor

Transfer Case Clutch Identification Resistor

Transfer Case Oil Temperature Sensor Transfer Case Fluid Temperature Sensor

Transfer Case Neutral Indicator Transfer Case Neutral Range Indicator

Transfer Case Neutral Range SwitchTransfer Case Neutral Range SelectionSwitch

Rotational Position Sensor Transfer Case Range Position Sensor

Transfer Case Mode SwitchMode Switch

Transfer Case Range Selection Switch

– Thanks to Morgan Chemello

Excessive Road Noise

2010 Silverado and Sierra Crew Cab and Extended Cab models may exhibit excessive roadnoise from the rear of the cab. The noise maysound as if it is coming from the left or right rearcab and is similar to a door that is ajar, but all doorswill be completely closed.

The excessive road noise may be entering thecab through a void in the body filler in the C-pillar orthrough the rear panel insulator. For additional information about these road noise conditions,refer to Bulletin #10-08-58-001A.

If a void is found in the body filler, fill it with theseam sealer listed in the bulletin to eliminate the airflow escape concern.

If the noiseis determinedto be due tothe insulator, arevised insula-tor is available(part number20983473) thatis designed tosignificantly re-duce the noise.

Before making any repairs, it canbe determinedwhich insulatoris on the vehi-cle by lookingunder the rearseat on theright or leftside. If thebody color ofthe rear innerpanel belowthe insulatoris visible, the insulator is theoriginal design,which istrimmed straight across the bottom. The revised insulator is extended at the bottom of both ends.

Follow the appropriate Service Information repairinstructions to replace the insulator.

TIP: The revised insulator will significantly reduceroad noise from the rear cab area; however, it willnot help with wind noise or tire noise caused byon/off road-style tires.

– Thanks to James Will

Inspect the inner baffle/foam within the C-pillar for any

voids in the body filler.

The original insulator is trimmed straight across the bottom.

Revised rear panel insulator is thicker and is extendedat the bottom of both ends.

FocusMost digital cameras focus on

the center of the image when theshutter button is pressed half-waydown. To photograph somethingthat is not dead center, point thecamera at that item, and press theshutter button half-way down. Re-frame the picture while continuingto hold the shutter button, and thenfinish by pressing the shutter all theway down to take the photo.

LightingPoor lighting can result in poor

quality photos, with or withoutusing the camera’s flash feature.Sometimes a photo will be betterwith the flash on, and sometimes itmay wash out the picture. The onlyway to know is to try one photoeach way.

If the subject is in a dark area,the camera needs to keep the shutter open longer, making it diffi-cult to hold the camera steady longenough for a sharp image. Using aflash may help, but if the cameracannot properly focus in the darkprior to the flash going off, theimage may be blurry. At the sametime, a close-up shot in dim lightingwhile using the camera flash maywash out the image. If the flash iswashing out the picture, try backingaway from the subject and thenzooming in to get a closer image.The farther away from the subject,the more spread out the light fromthe flash will be.

If the camera’s flash is providingtoo much light, the solution may beto use an external light source. Fluorescent shop lights work wellin providing extra light. Place thelight out of the camera’s view, otherwise, the camera will try tocompensate for the brightness ofthe light by making the entireimage darker.

If it is too dark to take a photo indoors without using the flash feature or an external light sourceisn’t available, try taking the vehicleor part outside. Cloudy days aregreat for taking pictures; there’s alot of light but not much glare.

To view a video with more digitalphotography tips, check out theJune 2010 Emerging Issues seminar available on www.gmtraining.com.

– Thanks to Jim Trudeau

Field Product Reports play a key role inproduct quality and customer satisfaction,and submitting a report with digital photo-graphs can often better illustrate an issueor provide additional details. Photographscan help in identifying how to correctitems such as misrouted wiring, mis-aligned components or paint blemishes.

Refer to Bulletin #02-00-89-002J for details on how to submit a Field ProductReport. Reports with digital photos should be e-mailed to electronicproductreport@gm.com. Theproduct report form is available throughGlobalConnect on the Service Workbench,under Service Forms. (In Canada, refer toBulletin #10-00-89-006 and e-mail reportsto pir.reports@gm.com.)

When including digital photographswith a Field Product Report, the imagesshould be in a .jpg format. The maximumallowable total size for the e-mailed reportis 5 MB. E-mails larger than 5 MB will bereturned as undeliverable.

Bulletin #07-00-89-036C has useful tipson how to properly take a digital photo-graph that will include as much detail aspossible. After all, a photo that is blurry,out of focus or too dark to see clearly willnot provide much help in understandingthe issue.

Most digital cameras can easily producevery detailed images. Here are a few tipson getting the best shot on a vehicle in ashop environment.

Wide Angles and Close-UpsTake a variety of images at different

distances. A shot from a farther distanceprovides a wide-angle reference thatshows the location on the vehicle, whilethe close-up photos provide more details.

Any photo taken closer than about 2 ft.will often be blurry unless using theMacro focus on the camera. This setting isusually shown as a flower, a magnifyingglass, a magnifying glass over a flower, orthe word MACRO on most cameras.

Hold SteadyEven small movements will blur the

photo. If available, use a tripod or a stationary surface. Bracing yourselfagainst a wall or other sturdy object mayalso help.

A photographer’s trick to keep the camera steady, especially if working inlow light conditions that require the camera shutter to stay open longer to capture the image, is to use the timer setting on the camera. With the camerasecurely positioned, set the timer on thecamera and then take your hand away. Thephoto will be taken automatically a fewseconds later.

6 August 2010

Without the flash or other light source, the camera cannot focus and the photo is

under-exposed and blurry.

Submitting Digital Photographswith Field Product Reports

Using the flash, the photo is over-exposed and most of the

detail is washed out.

With a shop light behind and to the side of the camera, the result is a

properly focused and exposed photo.

August 2010 7

GM TechLink is a monthly magazinefor all GM retail technicians andservice consultants providing timelyinformation to help increase know -ledge about GM products andimprove the performance of theservice department.

Publisher:Thomas J. Arnold

GM Customer Care and Aftersales /Thomas.Arnold@GM.com

Editor:Lisa G. Scott

GM Customer Care and Aftersales /Lisa.G.Scott@GM.com

Technical Editor:Mark Spencer

/mspencer@gpworldwide.com

Production Manager:Marie Meredith

Desktop Publishing:5by5 Design LLC

/dkelly@5by5dzign.com

FAX number: 31-248-729-4704

Write to: *TechLinkPO Box 500Troy, MI 48007-0500

GM TechLink on the Web: :GM GlobalConnect

General Motors service tips areintended for use by professional technicians, not a “do-it-yourselfer.” T hey are written to inform those technicians of conditions that mayoccur on some vehicles, or to provide information that could assist in theproper service of a vehicle. Properlytrained technicians have theequipment, tools, safety instructionsand know-how to do a job properly andsafely. If a condition is described, donot assume that the bulletin applies toyour vehicle or that your vehiclewill have that condition. See a GeneralMotors dealer servicing your brand ofGeneral Motors vehicle for informationon whether your vehicle may benefitfrom the information.Inclusion in this publication is not necessarily an endorsement of theindividual or the company.

Copyright© 2010 General Motors CompanyAll rights reserved.

Servicing Corvette HVAC Actuators

When servicing the right-hand (RH) temperature actuator or mode HVAC actuator onthe 2005-2011 Corvette, it is necessary to roll back the instrument panel for access tothe actuators. Because rollingback the instrument panel is avery labor intensive procedure, itis recommended to replace allfour HVAC actuators when diagnostics lead to replacing theRH temperature actuator ormode HVAC actuator.

TIP: After installation, the actuators must be recalibrated.Refer to the actuator recalibra-tion procedure in the Service Information.

– Thanks to Jeremy RichardsonLocation of the RH temperature actuator

Owners of a 2010 Camaro with the6.2L V8 engine (RPO LS3) and 6-speedmanual transmission (RPO M10) may experience an intermittent clutch pedalcondition where the clutch pedal sticks tothe floor or stays low during hard acceler-ation from a stop or during a shift.

This condition may only be noticedwhen using Launch Control, which is aform of traction control that optimizeswheelspin while launching the vehicle.Launch Control is activated when the vehicle is at a standstill while in Competi-tive Mode. To turn on Competitive Mode,press the StabiliTrak/Traction Control button twice quickly.

TIP: To use Launch Control properly,the accelerator pedal should be pressedto the floor with the clutch engaged. En-

gine RPM will be limited to a predeter-mined level. The clutch pedal should bereleased quickly while the acceleratorpedal is pressed to the floor, providingcontrolled wheelspin and acceleration.

The sticking clutch pedal condition maybe the result of the clutch pedal being released too slowly while using LaunchControl, which will allow the clutch to slip.This condition can overheat the clutch anddeform the pressure plate.

When using Launch Control, the clutchpedal should be released quickly to avoidoverheating the clutch. A failure of this nature is generally caused by impropercustomer use and would not be coveredby the new vehicle warranty.

– Thanks to Brian Starkel

Clutch Pedal Sticks to theFloor or Stays Low

Headlamps and Reminder Chime Inoperative

The headlamp reminder/warning chimemay be inoperative and the headlampsand parking lamps may turn off when thekey is turned to the Off position on some2007-2010 Vibe and Aveo (Wave in Canada)models. These conditions may have beenfirst noticed after an Instrument Panel (I/P)fuse block replacement.

The headlamp reminder/warning chimefeature was eliminated on these modelson November 17, 2006.

Vehicles built before November 17, 2006have the headlamp reminder/warningchime. However, if the I/P fuse block is replaced for any reason, the headlamp reminder/warning chime feature will beeliminated.

The operation of the headlamp switchfor vehicles that have had the I/P fuseblock replaced and vehicles built after November 17, 2006 features:

• Key On: Both headlamps and parkinglamps function

• Key Accessory: Only the parkinglamps function

• Key Off, Key in the ignition cylinder: Only the parking lampsfunction, ignition warning (beeping)active

• Key Off, Key out of the ignition cylinder: Parking lamps and head-lamps do not function

– Thanks to Ernest Haller

8 August 2010

Car Issues – Fix It Right the First Time

ServiceKnow-How

10210.08D Emerging Issues

Truck Issues – Fix It Right the First Time

Model Year(s) Vehicle Line(s) / Condition Do This Don’t Do This Reference Information / Bulletin

2010 Equinox; Torrent – Shudder in vehicleunder moderate to hard acceleration

Add RDM washers and re-evaluate before replacing thespring or the half shafts

Do not install RDM washers for otherthan AWD vehicles. Do not replacethe front drive axles or springs

09-03-08-009B

2008-2010 Canyon; Colorado – Front manual seat(s)will not adjust forward or rearward, stickor bind

Inspect the adjuster bar andthe plastic adjuster blocks forgaps. Replace the adjuster baronly when directed bybulletin instruction

Do not replace the front seat tracks 10-08-50-006

2007-2010 Acadia; Enclave; OUTLOOK; Traverse –Clunk noise when turning

Replace bushing with newlydesigned part

Do not replace the steering gearassembly

10-02-32-001A

2004-2010 Acadia; Enclave; Equinox; OUTLOOK;Rendezvous; Terrain; Torrent; Traverse;VUE –Internal engine noise or damageafter oil filter replacement

Always ensure the partsinstalled are from a trustedsource. The best way to avoidoil filter quality concerns is topurchase ACDelco oil filtersdirectly from GMCC&A

Do not perform warranty repairswhen engine damage is the result ofan incorrect or improperly installedengine oil filter

10-06-01-003

2006-2011 Avalanche; Canyon; Cobalt; Colorado;Envoy; Escalade EXT; G5; Rainier; Saab 9-7X; Sierra; Silverado; SSR;TrailBlazer; TrailBlazer EXT –Difficult toinstall fixed radio antenna mast

Use the correct antenna andinstall with the understandingthat the interference threadwill require additional effortto install

Do not replace the antenna or thebase

07-08-44-001F

2007-2010 HHR –Driver and/or passenger seat armrest comfort, angle adjustment and height

Inform the customer ofnormal characteristics of thearm rest

Do not replace the arm rest 10-08-50-007

Model Year(s) Vehicle Line(s) / Condition Do This Don’t Do This Reference Information / Bulletin

2005-2010 All Vehicles – Expanded CustomerConcern Not Duplicated (CCND)/verifiedlabor operation numbers

Use the new electrical CCNDlabor codes by electricalsystem

Do not submit the warranty claimusing the general electrical CCNDlabor codes N9995 or R9995

06-00-89-026D

2005-2010 All Vehicles – Intermittent MIL illuminated,DTC P2138 with reduced engine power

Check wiring and connector Do not replace the throttle body oraccelerator position sensor

07-06-04-019C

2008-2009 G8 – Knock noise from front suspensionover small bumps

Use new P/N 92249538 toobtain all four lower controlarms

Do not obtain all four control armsindividually instead of using the newkit

09-03-08-008A

2004-2011 Cobalt; Equinox; G5 (Pursuit); G6; HHR;ION; Malibu; Malibu Maxx; Torrent; VUE –Normal operating characteristics ofElectric Power Steering (EPS) Systemduring extended lock-to-lock turns orwhen held at maximum steering wheelrotation and/or DTCs C0176 and C0476

Inform the customer of thenormal operatingcharacteristics of the EPSsystem

Do not replace EPS systemcomponents

06-02-32-002D

2009-2011 Avalanche; Equinox; Regal; Sierra;Silverado; SRX; Tahoe – Information onUSB Command and Control multimediaplayer interface/list of supported devices

Verify that the customer USBdevice is supported

Do not replace the navigation radiofor unsupported USB devices

10-08-44-004

1998-2010 All Vehicles –Electrical ground repair –Use new replacement fasteners withconductive finish

Use the procedure andmaterials in the bulletin

Do not scrape the paint off thesurface and use a star washer

10-08-45-001A

1998-2011 All Vehicles – Guidelines for using laboroperations E2020 - Wheel Alignments,E2000 - Toe Adjust and E0200, E0201,E0203, E0204 - Wheel Balance

Understand when it isappropriate to balance thetires or align the vehicle andwhen it should be covered bythe new vehicle warrantybefore starting any repairs

Do not perform a wheel balance orvehicle alignments withoutunderstanding the bulletin guidelines

01-03-10-012F

2004-2011 All Vehicles – Improperly formatted SIscreen characters

Ensure your screen isproperly displaying thediagnostic procedures

Do not misdiagnose the vehiclebecause your computer setup makesit hard to understand the diagnosticprocedure

PI0135

To view Emerging Issues seminars:Log in to www.gmtraining.com, select Service Know-How/TECHAssist from the menu, select Emerging Issues, andthen Searchable Streaming Video to choose the current Emerging Issues seminar or past programs.

August 12, 2010