2008 GMC Sierra Technical Service Bulletins

317 technical service bulletins (TSBs) are on record for the 2008 GMC Sierra. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10114352Jan 15, 2015Tires, Wheels. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
• 10114343Jan 14, 2015Equipment. This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Technician will need to determine what type of call the customer is having that is unwanted. The vehicle may receive an incoming call just like any other phone. Typically the customer will hear the phone ringing in the vehicle. This…
• 10114342Jan 14, 2015Equipment. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
• 10043847Nov 1, 2014Exterior lighting. Gm: low beam headlamp bulb diagnosis/ replacement (inspect bulb and connector). Do not replace the entire headlamp assembly for this condition. Replace the bulb and inspect the connector. *js updated 4/7/15.
• 10037626Nov 1, 2014Electronic stability control, Suspension, Steering. Gm: there is unwanted stability action or stability light on. This can be caused by the suspension being modified. *rm updated 6/18/12. *pe models 2007-13 all escalade; avalanche, silverado, suburban, tahoe; sierra, sierra denali, all yukons. Updated 11/28/12. *pe updated 4/1015.
• 10032328Nov 1, 2014Electrical system. Gmc chevrolet service campaign: see document search button for owner letter. Material over sensing & diagnostic module retaining moisture. Vehicles may have a condition where an electronic component located beneath the driver's seat may corrode due to a significant quantity of snow and/or water containing road salt or other contaminants entering the vehicle and saturating the acoustical padding beneath the carpet…
• 10114328Oct 30, 2014Equipment. This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and now is refered to Article 3.2.9 of the 1st addition manual for details of Technician Identification and Accounting of Labor Time
• 10114309Oct 23, 2014Visibility (wipers, defrost, mirrors). This informational bulletin explains how to care for wiper blades.
• 10114299Oct 17, 2014Equipment. This informational bulletin provides a quick guide to updating which model vehicle after replacing the IPC.
• 10114296Oct 16, 2014Equipment. This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause and correction; Labor Time; Technician ID and acoutablity of labor time; Proper documentation and retension of warranty parts; Accurate sublet charges and receipts; Add on…
• 10114280Oct 6, 2014Equipment. This informational bulletin provides information on Inappropriate Warranty Claims Submitted for Damaged Radios and IPCs
• 10112237Sep 17, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that the OnStar LED is staying on after the vehicle Retained Accessory Power has turned off and/or their Bluetooth phone stays connected after leaving the vehicle. Technician will need to check the Station Identification number. If the Station Identification number falls in the range technician will need to perform an…
• 10112211Sep 8, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that the OnStar LED is staying on after the vehicle Retained Accessory Power has turned off and/or their Bluetooth phone stays connected after leaving the vehicle. Technician will need to perform a power cycle to the Vehicle Communication Interface Module. If the concern is gone, no further action is required.
• 10056354Sep 1, 2014Engine, Engine cooling. Gmc/chevrolet: engines, with egr system, has leakage from egr cooler engine coolant into the combustion chamber. Model 2002-15 silverado, sierra, 2004-09 kodiak c4500-c5500, topkick c4500-c5500, 2006-15 express, savana.
• 10025682Sep 1, 2014Exterior lighting. Information on bcm calibrations available to restore bulb outage detection on vehicles produced by a second stage manufacturer, turn signals flash fast after factory box removed (upfitter). Chassis cab models and pickups with box delete option only (rpo zw9). *pe updated 4/3/2012. *pe models 2007-13 silverado; sierra. Updated 11/28/12. *pe updated 1/24/13. *pe updated 09/03/14*lj updated 12/5/14. Pe
• 10112168Aug 15, 2014Engine cooling. This Preliminary Information communication provides information to the technician about vehicles with Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0101. Technician should follow published Service Information diagnostics for any Diagnostic Trouble Codes that are set.
• 10112151Aug 7, 2014Exterior lighting. This Preliminary Information communication provides information to the technician about the operation of the ground illumination lamp. For the puddle lamps to operate they must be turned on using the Drivers Information Center buttons and it must be dark outside.
• 10112135Jul 30, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that may have "Press check to turn off motion sensor" message on the Driver Information Center. If this message is displayed, the vehicle has a General Motors Accessory shock sensor, motion sensor or inclination sensor installed. Dealer should advise the customer this is normal operation with this accessory installed.
• 10112115Jul 16, 2014Engine, Vehicle speed control. This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on or reduced engine power message. Technician may find Diagnostic Trouble Codes P2120, P2122, P2123, P2125, P2127, P2128, and/or P2138. Technician will need to inspect the Accelerator Pedal Position circuits for poor terminal tension.
• 10058259Jul 16, 2014Engine cooling. General motors: an optional engine block heater plug in for onboard ac power and with continuous usage will result in shorting of wires, over heating system, electrical failure and compartment engine fires. Model 2003-15 express cut away vans, silverado chassis cab, savana cut away vans, sierra chassis cab.
• 10037809Jul 1, 2014Engine cooling. Gm: the engine light is on and the vehicle lacks power. There are multiple possible trouble codes. *rm updated 10/15/14.
• 10112093May 29, 2014Electrical system. This Preliminary Information communication provides information to the technician about vehicles with a "Service Charging System" message displayed on the Driver Information Center and/or a low voltage reading on the volt gauge during the first several minutes after a cold start. Technician may find a Diagnostic Trouble Code B15517 sym 03. If this concern only occurs during the first several minutes of a cold…
• 10112069May 14, 2014Engine, Engine cooling. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first…
• 10043845Feb 1, 2014Transmission and drivetrain. Gm: slips in reverse or third, delayed reverse or drive engagement, dtc p0776, p2715, p2723, harsh 2-3 shifts (inspect 1-2-3-/ 3-5-r housing and pump seal rings). This condition may be caused by a cracked 1-2-3-4/ 3-5-r clutch housing. *js updated 5/10/12. *pe updated 04/15/2014
• 10112036Jan 28, 2014Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Driving on clean, dry pavement in Four-Wheel Drive High or Four-Wheel Drive Low for an extended period of time may cause premature wear on your vehicle?s power train.
• 10112033Jan 28, 2014Electrical system, Equipment. This Preliminary Information communication provides information to the technician about vehicles that have navigation or radio screen is blank or flashes on and off, no sound from speakers, and rear DVD screen inoperative. Technician will find Diagnostic Trouble Codes B1265, B1288, or B1289. Technician will need to repair circuit 7066.
• 10112030Jan 24, 2014Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Driving on clean, dry pavement in Four-Wheel Drive High or Four-Wheel Drive Low for an extended period of time may cause premature wear on your vehicle's power train.
• 10112024Jan 24, 2014Body and structure, Interior lighting. This Preliminary Information communication provides information to the technician about vehicles that have Diagnostic Trouble Code B2555 may be found in a Driver and/or Passenger Door Module. Technician should ignore the Diagnostic Trouble Code if set in a DDM and/or PDM on a vehicles not equipped with front door panel courtesy lights.
• 10112023Jan 23, 2014Fuel system. This Preliminary Information communication provides information to the technician about vehicles that after refueling the fuel gauge will show empty. Technician may find Diagnostic Trouble Code P2636 has set. Technician should be advised that the vehicle is being refueled with the engine running or ignition on.
• 10112010Jan 21, 2014Seats. This Preliminary Information communication provides information to the technician about vehicles that after installing the GM Accessory Heated Seat Kit, one or more of the following issues may be present the heated seat back and/or bottom turns off after approximately 30 seconds and after turning on the heated seat switch, the indicators remain on, but the seat is not heating. Technician may find Diagnostic Trouble…
• 10112009Jan 21, 2014Electrical system. This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.
• 10047220Dec 1, 2013Engine. Hummer/cadillac, chevrolet, gmc: see document search button for owner letter. Engine may have reduced power, running rough, and possible have malfunction indicator lamp on, due throttle position sensor. Models 2008-2010 cadillac escalade, esv, ext, chevrolet trailblazer, avalanche, express, silverado, suburban, tahoe, colorado, gmc envoy, savana, sierra, yukon, yukon xl, canyon, hummer h2, h3, h3t. 2008-2009 saab…
• 10112377Nov 26, 2013Body and structure, Equipment. This Preliminary Information communication provides information to the technician about vehicles that have tailgate may not lower slowly like the New 2014 Silverado 1500 / Sierra 1500 models. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
• 10112368Nov 25, 2013Electrical system, Steering. This Preliminary Information communication provides information to the technician about vehicles that have an instrument panel backlighting flashes, flickers or inoperative, unwanted horn activation, radio controls inoperative or unwanted activation, OnStar unwanted activation, and cruise control inoperative.
• 10112346Nov 11, 2013Equipment, Electrical system. This Preliminary Information communication advises the technician about key and theft information for Fleet Vehicles equipped with RPO 6E2 or 6E8 and converting to fleet mode. Technician will need to ensure fleet vehicles with RPO 6E2 or 6E8 should be checked to verify that the Theft Deterrent Module is in fleet mode prior to attempting to add keys.
• 10054243Nov 1, 2013Body and structure, Visibility (wipers, defrost, mirrors). General motors: the windows, front and rear, would bind, poor fit, misalignment, makes rattle or squeaking noises, moves slowly and is inoperative. Model 2008-2014 vehicles and trucks.
• 10037409Nov 1, 2013Transmission and drivetrain. Gm: there are transmission problems that include trouble shifting and noises. There may be serpentine belt problems causing it. *rm updated on 06/27/2011. *kb updated 3/12/12. *pe updated 1/2/14.
• 10112437Oct 31, 2013Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have a random bump, chuggle, or fishbite sensation when crowding the throttle slightly with the Torque Converter Clutch on while cruising at 35-60 miles per hour. Technician should follow all published Service Information diagnostics if the concern is repaired compare to a like vehicle with the same options.
• 10112436Oct 30, 2013Engine, Fuel system. This Preliminary Information communication provides information to the technician that some vehicles may have a Service Engine Soon lamp, engine misfire on cylinder 1, 4, 6, or 7 and/or tick noise. Technician will follow service information diagnosis first. If service information diagnosis does not isolate the cause of this concern perform a cylinder deactivation active fuel management system compression test in…
• 10112429Oct 25, 2013Body and structure, Equipment, Latches, locks and linkages. This Preliminary Information communication provides information to the technician about vehicles that unable to program the key fobs to the vehicle. Technician will need to contact Techline Customer Support Center to obtain calibrations if adding Remote Keyless entry.
• 10112428Oct 25, 2013Body and structure, Latches, locks and linkages, Electrical system. This Preliminary Information communication provides information to the technician about customers that are unable to override the automatic door locking feature. Technician will update the Body Control Module on 2006 to 2007 model years. On 2010 to 2014 model years technician will need to contact Techline Customer Support for calibrations.
• 10112427Oct 24, 2013Other or unknown, Electrical system. This Preliminary Information communication provides information to the technician about customer's wanting to add the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full Size pickup/utility when the vehicle was not ordered with the option. Dealer should advise the customer that if the vehicle does not have the option Regular Production Option Code (JL1) it…
• 10112413Oct 16, 2013Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have multiple electrical concerns and or intermittent no crank. Technician will need to remove the 175 amp Mega Fuse and inspect for arcing. If any type of arcing is found replace the affected components. Technician will also check the voltage drop on the positive and negative and the torque of the cable at the…
• 10112401Oct 9, 2013Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have not engagement into drive, delayed, no engagement into reverse, and or a range inhibit. Technician may find Diagnostic Trouble Codes P0701, P0731, P0732, P0733, P0734, P0736, P0751, P0756, P0761, P0776, P0843, P0848, P0873, P0877, P0894 or P2723. Technician should follow published Service Information…
• 10112384Oct 2, 2013Electrical system, Steering, Vehicle speed control. This Preliminary Information communication provides information to the technician with the installation of Cruise Control on a vehicle which did not come equipped with the option. Technician will need to contact the Techline Customer Support Center to determine if a calibration is available for the vehicle. If they are able to provide a calibration for the vehicle then order steering wheel with cruise control…
• 10036204Oct 1, 2013Transmission and drivetrain. Chevrolet/gmc: delayed or no drive and delayed or no reverse with dtc's, range inhibit. Model years 2001-2013. *pe updated on 06/08/2011. *kb updated on 06/16/2011. *kb updated 11/26/12. *pe updated 12/4/2013
• 10032396Oct 1, 2013Electrical system. Chevrolet/gmc/cadillac: multiple electrical concerns with dtc c0900 - keywords battery c/k cable clock crank cycle door dimming flicker gage gauge gmc hvac inop inoperative instrument intermittent ipc lock no panel power radio stall start temperature. *pe updated 3/28/11. Model yrs 2007-2009. *pe updated on 6/27/2011 added model yrs 2010-2011. *kb model years added 2012, 2013, and 2014. Updated 12/2/2013
• 10113254Sep 18, 2013Equipment. This Preliminary Information communication provides information to the technician about the new fluids available for axle service and clarifies usage. Technician will use the chart to determine the proper axle lubricant to use.
• 10053864Sep 1, 2013Steering. Buick/cadillac/chevrolet/gmc/pontiac/ saturn: there is fluid leaking from power steering system, along a fluid leak in front of vehicle underneath and should be inspected, cleaned and identified before repairing or replacing. Model 2010-14 lacrosse, 2011-14 regal, 2007-14 escalade, suburban, tahoe, yukon, yukon xl, yukon denali, yukon denali xl, 2013-14 xts, 2005-14 malibu, 2007-13 avalanche, silverado, sierra…
• 10113506Aug 28, 2013Tires. This warranty administration bulletin provide policy information on GM of Canada New Vehicle Limited Warranty Tire Program and Global Warranty Management (GWM) Submission Information.

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