Rear Seat Entertainment Display Overview

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The seatback Rear Seat Entertainment (RSE) system available in the 2010 Equinox, Terrain, SRX and LaCrosse features OEM DVD screens that display video from the DVD player located in the vehicle's radio. The screens may also display video provided to the auxiliary video input jacks located at the rear of the center console. (Fig. 1)

F01_Mar2010.jpg

The RSE displays may be prematurely replaced due to misdiagnosis of the system. Keep in mind the following operating characteristics before replacing a display.

TIP: There is also an SPO headrest DVD system available as a dealer-installed accessory. This system is independent of the factory-installed overhead system. Refer to SI documents for diagnosis and repair of the SPO headrest system.

CHANGES FROM PRIOR OVERHEAD SYSTEMS

IR Transmitters are only on the Left (Driver-side) RSE Display

Eight infrared LED transmitters are used to send audio signals to the wireless headphones that are included with the system. These LEDs are located on the driver-side screen, and are aimed to provide a signal to any rear seating position. (Fig. 2)

F02_mar2010.jpg

During operation, the LEDs may be visible through the lens on the driver'-side display, but not visible from the passenger-side seating position. This is NORMAL OPERATION -- the illuminated LEDs are located on the driver-side only.

Cannot Receive AM/FM/XM Audio on Wireless Headphones

The seatback RSE system is different from prior overhead RSE systems in that the RSA (Rear Seat Audio) system is no longer required with RSE. If the RSA system is not included with the vehicle, the audio that can be heard on wireless headphone channel 2 will ONLY be from a device (IPod, MP3 player, game system, etc.) that is connected to the rear seat auxiliary audio jacks.

Wireless headphone channel 1 will provide audio from any disc in the DVD player, including DVD audio, CD audio and MP3 or WMA audio discs.

Cannot Receive Audio from Device Connected Directly to the Display Video Input

The yellow RCA jack on each screen is dedicated to video only. Any composite video signal (from a video game, camera, stand-alone DVD player, etc.) attached to this input will override video from the vehicle DVD or rear auxiliary jack. Any user of this input will have to access audio from the external device directly from the device.

EARLY PRODUCTION ISSUES

Channel 2 Audio Drops Out on Wireless Headphones

The wireless headphones used on the first three months of production have been found to have weak reception for channel 2 audio. The symptom is that channel 2 audio will drop out if there is anything blocking the path between the transmitters and the headphones. Channel 1 audio is unaffected.

If service is requested for this condition on vehicles built before 09/11/2009, replace both headphones with service headphones (part number 20830572). These improved service or production headphones can be distinguished as having earpieces that fold flat. (Fig. 3)

F03_mar2010.jpg

Screen Squeak/Rattle

Video screens used on the first two months of Equinox and SRX production may have an internal hinge attachment that may become loose enough for a squeak or rattle to be heard while driving when the screen is in the upright viewing position. All service parts in stock now have an improved attachment. Video screens in the Lacrosse are not affected.

DIAGNOSING OTHER ISSUES

RSE Display Blank or Inoperative

A blank or inoperative RSE display is the most common customer concern. If the RSE display does not have all the necessary signals from the radio, it may not turn on.

When diagnosing a blank or inoperative RSE display, refer to the RSE display Service Information as well as any applicable RSE display bulletins and PIs (Preliminary Information).

Service Information includes:

·       Document ID 1984958 -- Video entertainment system inoperative

·       Document ID 1984957 -- Video display is poor or blank

Diagnosis of blank or inoperative displays should begin with checking the radio for video display-related DTCs. Setting of these DTCs would typically identify a vehicle wiring (open or short) issue.

DVD Player Does Not Work

The DVD player is integrated into the radio and separate from the DVD screen. It should be diagnosed separately. Diagnosis of this condition should begin at the radio. The RSE display simply shows what is sent by the radio.

Other Issues

·       If there is a mark or scratch in the LCD screen, or physical damage to the plastic housing, be sure the cause is not customer abuse.

·       Do not attempt to repair a RSE display with a broken latch. Replace the display.

Improper Use of Labor Codes for the GM SPO Headrest DVD System

There are separate labor codes for dealer-installed GM accessories. The Service Information has updated labor codes for dealer-installed GM accessories. Refer to bulletin #02-00-89-014F.

The labor code for the SPO Headrest DVD system is R9392. GM does not release an OEM Headrest DVD system, so all headrest systems should use this labor operation code.

The labor code to use for the seatback RSE display is R5554.

Be sure the correct labor operation code is used for the system being repaired.

- Thanks to Mark Friedrich, Charleen Goike and Katul Patel

Technician Polls on SI Forum

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As part of GM's efforts to improve the support they provide GM dealerships, there is a renewed emphasis on gathering information from the field when making decisions that impact technician productivity and customer service. One way of acquiring feedback from technicians is through the new technician polls that are now being posted on the Service Information forums website at http://service.gm.com.

TIP: Click the Forum tab at the top of the page to log in and vote on the latest poll. If you're not a member of the Forum, you need to register for access.

The Service Information Development group is posting polls on the Service Information forum under the Administration Forums to allow you the opportunity to vote on SI changes being considered.

A new poll with a couple of questions will be posted each month along with examples. Participants will see a tally of their voting results immediately after voting. (Fig. 4)

F04_mar2010.jpg

An example from the latest poll asks about the use and location of the diagnostic fault information in SI.

Each poll question is followed by an example in the SI format so you can see what the proposed change will look like. (Fig. 5)

F05_mar2010.jpg

In addition, the pros and cons are provided to give you an idea why a change is being considered.

Your input is important, even on what may appear to be an obvious answer from a technician perspective. By making your voice heard, the SI Development group will be able to make changes based on what is best for all users.

- Thanks to Dave Nowak, Jeff Flood, Rick Hill and Lisa Scott

Allison Transmission Fluid Leak

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During cold weather, a small, red fluid leak may be noticed on some 2001-2010 Silverado and Sierra 2500HD-3500HD series models equipped with the Allison LCT1000 transmission (RPO M74, MW7). The fluid leak may be at the back of the transmission by the vent.

 

This condition may be caused by fluid being discharged out of the transmission vent during extreme cold weather (approximately -15°F or -25°C or colder), at which point DEXRON® VI and other conventional transmission fluids become extremely viscous.

 

When the viscous fluid is circulated into the vent area, it becomes trapped and is not able to drain back to the pan. As the transmission warms up, the expansion of the air inside the transmission can force the trapped fluid out of the vent, leading to small drops of fluid being discharged.

 

To correct this condition, remove the stock vent assembly and run an external tube (Fig. 2, A) and vent (remove the top of the vent assembly) (Fig. 1) up to the front of the transmission to a mounting bracket. (Fig. 2, B)

F01 vent assembly.jpg

F02 vent tube.jpg

The extra length of the tube will allow the expelled fluid to be trapped and later drain back into the transmission.

 

In addition, on 2001-2004 models, replace the transmission fluid indicator (dipstick) with a new vented indicator.

 

Refer to bulletin #10-07-30-001A for additional information and installation procedures.

 

- Thanks to Al Ferry

Allison Transmission Shift Conditions

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The 2007-2010 Silverado, Sierra; 2001-2007 Silverado Classic, Sierra Classic; and 2003-2010 Kodiak and Topkick equipped with the Allison LCT1000 transmission (RPO M74, MW7) may have a delayed engagement or no engagement into Drive, a delayed engagement or no engagement into Reverse, or a range inhibit with several possible DTCs.

 

TIP: These conditions may be more pronounced in cold climates during a cold start.

 

When DTC P0701, P0751, P0756, P0761, P0843, P0848, P0873, P0877 or P0894 set, it could indicate no or excessively low pump pressure as a result of a no prime or loss of prime condition within the transmission pump. Follow the diagnostic steps outlined in the Service Information.

 

All of these DTCs, excluding P0894 could be set due to a fluid service/filter change, transmission service involving removing the pan, low fluid level caused by a leak, or long periods of storage.

 

Also check the transmission fluid level using the Hot Check Procedure. Low fluid level may cause any of the listed DTCs to set, particularly during a cold ambient and cold vehicle start. In cold climates, ensure the fluid level is at the top of the HOT band.

 

After checking the fluid level using the Hot Check Procedure, if any of the DTCs reset during a cold start, inspect the internal suction filter for possible cracks.

 

TIP: Replacing the TCM will not likely correct any of the listed DTCs or low main line pressure.

 

- Thanks to Al Ferry

Owners of a 2009-2010 Escalade, Silverado, Sierra, or 2008-2010 Tahoe or Yukon, with the Two-Mode Hybrid option (RPO HP2) and 2ML70 transmission (RPO M99) may notice a driveability condition where the vehicle jerks or surges when the engine is in Auto Stop mode, as observed on the tachometer. (Fig. 8)

F08_mar2010.jpg

The condition may include:

·       A lull (clutch slipping) followed by a jerk (clutch grabbing) during acceleration from a stop with light throttle that occurs just before an engine restart, or

·       A surge during deceleration below 15 mph with light to moderate braking that occurs after the tachometer drops to Auto Stop.

Either of these conditions may be caused by an auxiliary transmission fluid pump or a slipping clutch within the transmission.

Auxiliary pump part numbers 19168291 (2008-2009) and 19207983 (2010) have been placed on restriction. If diagnostics lead to auxiliary transmission fluid pump replacement, contact TAC. PIP4751A in SI includes additional information for auxiliary pump diagnosis.

Diagnosis

The main hydraulic system of the Hybrid Two-Mode 2ML70 transmission primarily consists of a vane-type pump, two control valve body assemblies, converter housing and case. The pump maintains the working pressures needed to stroke the clutch pistons that apply or release the friction components. The hydraulic system also uses a secondary system consisting of an auxiliary pump attached to the bottom of the transmission. This is a gerotor-type pump that maintains working pressures when the engine is off in Auto Stop mode. (Fig. 9)

F09_mar2010.jpg

TIP: A low State of Charge (SOC) of the 300V battery may cause a similar jerk or surge condition. An updated minimum SOC of 60% has been established since a recent Emerging Issues seminar discussing the auxiliary transmission pump was released. Let the vehicle sit for one hour and make sure the SOC is above 60% before beginning diagnosis of the auxiliary transmission fluid pump.

During diagnosis, check for DTC P2797, Auxiliary Transmission Fluid Pump Performance, in the Hybrid Powertrain Control Module. If DTC P2797 is present, it is necessary to follow SI diagnostics for this code before proceeding with the repairs outlined in PIP4751A.

TIP: If any DTC other than P2797 is present, follow the normal flow charts for the DTC in SI to identify the issue.

After completing repairs for any set DTCs, take a snap shot while in Auto Stop mode with the vehicle in Drive and both the parking brake and service brakes applied to maintain zero vehicle speed. Next, slowly increase the throttle position to 25% until the ICE restarts (the Motor 2 torque command will exceed 100 Nm).

Review the snap shot and graph Calc. Throttle Position, Motor 2 Torque Actual, Motor 2 Speed Actual, Aux. Trans. Fluid Pump Actual, and Engine RPM. (Fig. 10)

F10_mar_2010.jpg

In the accompanying snap shot plot, the auxiliary pump percentage is above zero, which means it's working electrically. Also, since the clutch has sufficient hydraulic force to keep Motor 2 from rotating, the auxiliary pump is operating mechanically. However, during operation of the pump, its percentage drops to near zero and the Motor 2 Speed increases.

If the Motor 2 Speed exceeds 20 RPM and, at the same time, auxiliary pump percentage drops to near zero prior to the engine restart, the auxiliary pump has stalled. As a result of the drop in pressure to the clutch, Motor 2 is allowed to rotate.

TIP: There may be audible indications of electric motor speed increases and clicking noises associated with the auxiliary pump stall.

If the Motor 2 Speed stays below 20 RPM and the auxiliary pump percentage stays relatively steady until the engine restart, the pump is operating within normal parameters.

When diagnosis reveals a stalling auxiliary pump, contact TAC for information on part replacement.

- Thanks to Steve Bunce and Keith Newbury

Remote Start Seat Heating and Ventilation

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Some Global A architecture vehicles (2010 Camaro, LaCrosse, SRX, Equinox, Terrain) allow the driver to configure the heated and ventilated seats (if equipped) to turn on once a remote start is commanded.

TIP: Refer to the Vehicle Personalization Climate and Air Quality menu settings using the audio system controls to turn the remote start heated and vented seats feature on/off.

The heated seats will only operate if the outside air temperature is below 50˚F (10˚C) as measured by the outside air temperature sensor. Seat ventilation will only operate if the outside air temperature is above 80˚F (27˚C).

When seat heating is commanded, the heating level will be set to the High setting. On some vehicles, the LED display for the heating or ventilation level will not be illuminated during remote start operation.

When the key is inserted in the ignition and turned to the On position, the heated seats will automatically turn off. If heated seat operation is desired after the remote start, the heated seat will need to be activated manually by the occupant.

Be aware that during remote start heated seat operation, since there is no occupant in the seat, the occupant may feel little or no difference in the temperature of the seat. This condition is due to little heat transfer to the seat cover since there is no weight on the cushion. With remote start still active, once the seat is occupied and the seat cover is pressed against the heater element, heat will begin to transfer more rapidly to the seat cover.

- Thanks to Paul Gallo

Battery Cable Connections

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The 2010 Camaro may have an intermittent no crank or dead battery condition.

Inspect the battery cable connections in the Underhood Battery Cable Junction Block located near the left front strut tower (Fig. 11) and also at the UBEC for a poor connection. There may be signs of arcing on the terminal ends.

F11_mar2010.jpg

Clean the terminals as required and reinstall the fastener. (Fig. 12)

F12_mar2010.jpg

- Thanks to Jeremy Richardson

Full-size Truck PPS Re-zero Procedure

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On the 2009-2010 Escalade, Escalade EXT, Escalade ESV, Avalanche, Suburban, Silverado, Tahoe, Sierra, Yukon, Yukon Denali, Yukon XL, and Yukon Denali XL, the Passenger Presence System (PPS) re-zero procedure is not required.

TIP: 2009-2010 Tahoe Hybrid and Yukon Hybrid only (NOT Denali or XL Models) are the only full-size truck models that require the re-zero procedure.

Starting in 2009 on the full-size pickup and utility models, the PPS features a new design that does not require it to be re-zeroed using the Tech 2. The re-zero procedure updated the empty seat reference values stored in the ECU. The re-zero procedure has been removed from the Tech 2 menu for these models that do not require a re-zero. Service Information is being updated.

The Tech 2 looks at the GM part number in the PPS Module and determines if a re-zero process is needed. If a re-zero is needed, then the option will be available on the Tech 2 menu. If no re-zero function is listed, it's not necessary to perform the re-zero procedure.

- Thanks to James Will

Service Replacement Headlamp

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If a service replacement headlamp for the 2010 SRX is received with a fractured plastic tab at the location shown, it is not necessary to return the part to Service Parts Operations. Damage to the headlamp retaining tab may have occurred during shipping.

Do not return the part, this tab is used for production purposes only and is not required for service. The lamp housing can be modified before installation.

If the tab is broken, use a hack saw and remove the remaining plastic retaining tab by cutting across both legs of the tab as illustrated by the dashed line. (Fig. 13)

F13_mar2010.jpg

- Thanks to Jeremy Richardson

Skipping Audio Playback from HDD

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Owners of a 2010 LaCrosse, SRX, Equinox or Terrain equipped with the navigation audio system may experience skipping audio (i.e. approximately 1-2 seconds of intermittent muting) or the song may not fully record (i.e. only plays a few seconds of a song that is several minutes long) when listening to songs from the HDD (Hard Disk Drive). This condition only occurs after saving the song to the HDD from a CD and playing it back from the HDD. The song may appear to play fine from the CD

These conditions may be caused by an unclean CD. Fingerprints or small scratches on the disc may cause poor quality playback when a song is recorded to the HDD from a CD because different error correction/buffering is used during playback than during recording.

Skipping audio playback of this type is not a fault of the radio silverbox and parts should not be replaced.

Follow the directions in the Navigation Owner Manual or vehicle Owner Manual to properly clean the disc. If the disc is not able to be cleaned due to excessive scratches, an alternative method of loading the songs would be for the owner to make MP3 files of the songs on the disc, copy the files to a USB flash drive, and then record to the HDD from the USB port.

- Thanks to Jeremy Richardson

Universal Garage Door Opener Connection

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The Universal Home Remote System or Universal Garage Door Opener (UGDO) on some 2010 Camaro models may not function properly due to a connection that is not fully seated at the UGDO transmitter module.

Verify power to the module by pressing any UGDO button and check that the LED illuminates. If the LED does not illuminate, remove the overhead console and check for battery voltage at the UGDO connector. If there is power at the UGDO connector, disconnect and reconnect the UGDO connector and secure with a tie strap.

TIP: For proper clearance, be sure the tie strap is positioned away from the overhead console locator (Fig. 14, A) and behind the screw (Fig. 15, B) as shown.

F14_mar2010.jpg

F15_mar2010.jpg

Verify LED operation by pressing any UGDO button and reassemble the overhead console.

- Thanks to Jeremy Richardson

Intermittent Electrical Conditions

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In rare instances, various intermittent or hard-to-duplicate electrical conditions may be found on some 2010 SRX models. The conditions may include any of the following systems: ABS/traction control, adjustable pedals, brake fluid level, DVD/entertainment, engine coolant level, headlamp leveling actuators, heated mirrors, horn, IPC, rear defroster, steering wheel controls, turn signals, and windshield wipers/washers.

There may be DTCs U0121, U0125 and/or U0126 stored. Various DIC messages also may be displayed. A loss of communication with one or more control modules may be found. These conditions may be very intermittent.

If the published diagnostic procedures do not lead to the cause of the specific condition, inspect for proper electrical connection on all grounds related to the system being diagnosed. Poor electrical contact may be found at G131 and G201. The fastener may be tight, but the ground may still have poor electrical contact. Clean the related ground contacts and properly torque the fastener.

- Thanks to Jeremy Richardson

Fuel Line Bracket Rattle

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On some 2008-2010 Escalade, Escalade EXT, Escalade ESV, Avalanche, Silverado, Suburban, Tahoe, Sierra, Sierra Denali, Yukon, Yukon Denali, Yukon XL, and Yukon Denali XL models, a buzz or rattle type noise during light acceleration around 1200-1700 RPM may be heard. The noise may sound like it is coming from behind the instrument panel.

The buzz or rattle type noise may be caused by the fuel line bracket, above the transmission, contacting the floor pan.

Reposition the fuel line bracket down away from the floor pan.

- Thanks to James Will

Engine or Crankshaft Installation

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When installing an engine or replacing a crankshaft on a 2007-2009 LaCrosse, Allure (Canada only), CTS, SRX, STS, G6; 2007-2010 Enclave, Acadia, AURA, OUTLOOK; 2008-2009 G8, Torrent; 2008-2010 Equinox, Malibu, Camaro, VUE; 2009-2010 Traverse; 2010 LaCrosse, CTS, CTS Wagon with 2.8L or 3.6L High Feature V6 Engine (VINs D, T, V, 7; RPOs LP1, LLT, LY7), the keyway on the replacement may be different from the original. Also, other engine components may be different and need to be used from the original engine.

If the original has a keyway slot (Fig. 16) and the replacement has a round hole (Fig. 17), use round pin part number 12585420 in the crankshaft and then install the harmonic balancer. Install a new bolt and torque it properly. The harmonic balancer will not need to be changed.

F16_mar2010.jpg

F17_mar2010.jpg

Be sure to follow all instructions included with the engine pertaining to the oil pan, front cover, flexplate, and other components.

- Thanks to Ronald Mitchell

Repeat Poor A/C Performance

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The owner of a 2010 Camaro may comment of repeat poor performance of the air conditioning system. Previously, the compressor may have been replaced for a broken compressor shaft. In addition, there may be signs of overheating, such as labels on the compressor being bubbled.

If diagnosis leads to replacement of the A/C compressor for an overheating condition or broken shaft, check the Repair History. If the compressor has been replaced in the past for similar reasons, perform these additional steps in order to properly complete the repair.

1.     Replace the compressor and the receiver/dehydrator

2.     Flush the condenser and evaporator

3.     Verify through Repair History that the HVAC (ECC) module has had the latest calibrations installed

- Thanks to Jeremy Richardson

Slosh Noise from Rear of Vehicle

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A sloshing noise while stopping may be heard on some 2010 Camaro models. The source of the noise may be from the fuel tank or the exhaust muffler at the rear of the car.

To confirm if the noise is coming from the fuel tank, add or remove three gallons of fuel in the fuel tank and retest.

If the noise is gone after changing the fuel level, then this is a normal operating condition. No repairs are needed. The noise is considered normal for that level of fuel in the tank.

If the noise is present at all fuel levels, inspect for a blocked drain hole in the mufflers. Use an awl or small pick to clear the drain hole.

- Thanks to Jeremy Richardson

Car Issues - Fix It Right the First Time

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Model Year(s)

Vehicle Line(s) / Condition

Do This

Don't Do This

Reference Information / Bulletin Number

2007-2010

Acadia, AURA, Avalanche, Cobalt, DTS, Enclave, Escalades, G5, G6, G8, H2, Impala, Malibu, OUTLOOK, Sierra, Silverado, SKY, Solstice, Tahoe, Torrent, Traverse, VUE, Yukons - GM Accessory 2-way remote start transmitter battery

Ensure that the transmitter is not in second vehicle mode and the battery is not dead

Do not replace the battery if it is less than five months old or replace a transmitter because it is set for the wrong vehicle

09-08-52-004A

2008-2009

Astra - Chirp noise from accessory drive belt with A/C compressor on

Replace the generator pulley

Do not replace the generator or drive belt

10-06-01-001

2006-2010

CTS, CTS-V, SRX, STS - Shifter binds, ignition key sticks, shift to Park message, dead battery

Adjust the shift linkage

Do not replace the shifter without verifying the shift linkage is correctly adjusted

07-07-30-032C

2006-2008

Aveo - Poor acceleration, throttle body frozen shut in extremely low temperatures

Install the PCV valve kit and reprogram the ECM

Do not perform on inventory vehicles or replace the throttle body

08-06-04-004B

2004-2009

Aveo, G3 - HVAC blower motor inoperative, blower motor operates on high speed only

Replace both the blower motor and the resistor

Do not replace only a blower motor or only a resistor

10-01-37-001

2008-2010

Allure, Camaro, Equinox, G8, LaCrosse, Terrain - Key cutting procedure for obtaining replacement key

Obtain the correct key code

Do not use a four-digit key code

09-00-89-029C

2008-2009

G8 - Vibration in steering wheel, moan noise at highway speeds

Replace the engine mounts, propshaft, balance wheel/tire assemblies or correct the brake rotor runout

Do not replace the tires before completing the root cause

10-03-09-001

2007-2010

All Vehicles - Refinishing aluminum wheels

Only cosmetic refinishing of the wheel's coatings, using recommended procedures is allowed

Do not attempt any repairs that involve welding, bending, straightening or re-machining of the wheel

99-08-51-007D

2008-2009

Cobalt, HHR, SKY, Solstice - Ticking noise heard during cold start

Compare to other vehicles to ensure the noise is not excessive

Do not replace the high pressure fuel pump

06-06-93-001F

2010

Camaro - Accessory drive moan noise when A/C compressor cycles

Replace the accessory drive belt

Do not replace the pulley

09-06-01-013A

Truck Issues - Fix It Right the First Time

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Model Year(s)

Vehicle Line(s) / Condition

Do This

Don't Do This

Reference Information / Bulletin Number

2007-2009

Acadia, AURA, Enclave, Equinox, G6, Malibu, OUTLOOK, Torrent, Traverse, VUE - No Reverse, 3rd or 5th gear

Disassemble the transmission to clean debris generated by the broken wave plate. Replace the pump fluid filter and the control solenoid filter plate

Do not make repairs without cleaning the transmission and replacing the pump fluid filter and the control solenoid filter plate

09-07-30-012A

2010

All Vehicles - Exterior paint codes

Include the correct paint WA# when ordering paint

Do not order paint without including the WA#

10-08-51-001

2009-2010

Canyon, Cobalt, Colorado, Sierra, Silverado - Intermittent Check Engine light on, DTC P0442, P0446, P0451, P0452, P0453, P0454 or P0455

Install a fuel tank pressure sensor cover

Do not replace the fuel tank pressure sensor

10-06-04-001

2006-2010

Sierra, Silverado - Fluid leak from transmission vent during cold weather

Install new vent assembly with extension hose

Do not drill a hole in the transmission filler tube or replace the transmission

10-07-30-001

2005-2007

Equinox, Torrent - Liftgate hard to open in cold weather

In extreme cold weather (below 0°C/32°F), replace both liftgate struts with new parts

Do not use the old strut part number

08-08-66-002A

2007-2010

Sierra, Silverado - Snow ingestion into air cleaner element, Engine Power Reduced message, DTC P0101

Install the winter grille opening cover

Do not modify the air filter box

08-06-04-054A

2007-2010

Avalanche, Escalades, Sierra, Silverado, Tahoe, Yukons - Correct front axle vent hose routing

Correctly route the axle vent line

Do not leave the axle vent line routed incorrectly

08-04-19-004A

2007-2009

Acadia, Enclave, OUTLOOK - Water leak into cab from front sunroof glass

Replace the seal or align the sunroof glass

Do not replace the sunroof glass or module

10-08-67-001

2010

Equinox, SRX, Terrain - Driver power seat inoperative, Park Tilt mirrors malfunction, memory remote recall intermittent, adjustable pedals inoperative

Reprogram the memory seat module

Do not replace the memory seat module

09-08-50-015B

1999-2009

Sierra, Silverado - DTC P0446, Check Engine light on

For repeat DTC P0446 from a clogged canister vent, install a sealed canister vent valve solenoid and filter box

Do not replace the EVAP canister

02-06-04-037H

2004-2010

Rainier, TrailBlazer, Colorado, Canyon, Envoy, H3, 9-7X -DTCs P1516, P2101, P2119 and/or P2176 when colder than -23°C (10°F)

Follow the diagnostic procedures in the PI.

Do not replace the throttle body or any other components

PIP4573A

Service Know-How

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10210.03D - Emerging Issues

March 11, 2010

To view Emerging Issues seminars:

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

March 2010

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