2012 GMC Sierra 2500 Technical Service Bulletins

1,724 technical service bulletins (TSBs) are on record for the 2012 GMC Sierra 2500. 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.

• 10134676Mar 25, 2013Electrical system, Transmission and drivetrain. This preliminary information bulletin provides information on powertrain and various electronic/electrical control issues.
• 10134675Mar 25, 2013Equipment. This informational bulletin provides information for dealers to properly maintain vehicle in inventory.
• 10112935Mar 25, 2013Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down, remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle.
• 10134674Mar 22, 2013Suspension. This informational bulletin provides information on how to remove the body mount bolt due to being stripped or will not loosen.
• 10134672Mar 22, 2013Seats. This informational bulletin provides information on the proper cleaning products for GM hard or plastic surfaces, seats carpet, vinyl.
• 10134671Mar 22, 2013Electrical system, Transmission and drivetrain, Equipment, Tires. This technical bulletin provides a procedure on aftermarket ALSL or DLC devices causing multiple issues due to suspected tampering.
• 10134665Mar 20, 2013Back-over prevention (rear camera). This preliminary information bulletin provides information and additional diagnostics on park assist blocked being messaged on the DIC.
• 10112926Mar 20, 2013Equipment. 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.
• 10134662Mar 19, 2013Engine, Transmission and drivetrain. This informational bulletin provides information of suspected tampering or vehicle modifications for non-GM (Aftermarket) engine and transmission calibrations for V6 and V8 gasoline engines Using Tech 2® or global diagnostic system 2 (GDS 2)
• 10112920Mar 19, 2013Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have intermittent Diagnostic Trouble Code P0340. Technician will replace the cam position sensor if the vehicle build is Sept or Oct of 2012 and SI diagnostics does not lead to a resolution.
• 10112917Mar 15, 2013Electrical system. This Preliminary Information communication advises the technician that 2-Mode Drive Motor Generator Battery will be placed on a parts restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
• 10134652Mar 11, 2013Equipment. This informational bulletin provides information on fix it right for first time issues.
• 10134649Mar 7, 2013Fuel system. This preliminary information bulletin provides a procedure for installing a zip tie for the fuel level sensor to correct the fuel gauge intermittently not reading full when the fuel tank is filled.
• 10134646Mar 5, 2013Transmission and drivetrain. This preliminary information bulletin provides a procedure to adjust the transmission dipstick tube and/or install the transmission fluid filler tube sleeve to eliminate a tick, buzz or rattle noise from the front of dash, transmission filler tuber cracked or broken.
• 10112893Mar 5, 2013Equipment. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent Diagnostic Trouble Code P0340. Technician will need to replace the cam position sensor to correct this Diagnostic Trouble Code P0340 concern.
• 10134644Mar 4, 2013Steering. This preliminary information bulletin provides a procedure to eliminate a whine noise that varies with engine speeds.
• 10134643Mar 4, 2013Engine cooling. This preliminary information bulletin provides a procedure to re-align the exhaust pipe and replace the gasket to eliminate an exhaust leak or vibration/rattle noise heard approximately 900 RPM, fuel smell, white smoke, oily substance on the exhaust downpipe.
• 10134640Mar 4, 2013Wheels. This informational bulletin provides information on the appearance of chromed aluminum wheels due to chemical staining, pitting corrosion and/or spotted.
• 10254207Mar 1, 2013Engine cooling, Electrical system. No Crank/No Start, Dead Battery Due to Parasitic Drain/Discharge.
• 10245804Mar 1, 2013Equipment. Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues
• 10063364Mar 1, 2013Transmission and drivetrain. Summary to be provided on a future date.
• 10112887Feb 26, 2013Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that may have a ticking noise when driving above 30 miles per hour in third and fourth gear. Technician will need to replpace the Reaction Carrier, Low and Reverse Roller Clutch Race, and the Low and Reverse Roller Clutch.
• 10112885Feb 26, 2013Equipment. This Preliminary Information communication advises the technician that a noise or a vibration in the vehicle that seems to be abnormal may not have been there when the vehicle was purchased. Technician should look for Non - General Motors aftermarket accessories installed on the vehicle that can cause these issues.
• 10112877Feb 22, 2013Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have a service four wheel drive message displayed in the driver?s information center. Technician may find Diagnostic Trouble Code C0387. Technician should follow published Service Information diagnostics for the Diagnostic Trouble Code if it is a current code. Technician will need to attempt to duplicate the…
• 10112876Feb 21, 2013Equipment. This Preliminary Information communication provides information to the technician about vehicles that have a service 4 wheel drive message displayed in the driver?s information center. Technician will find Diagnostic Trouble Code C0306, C0321, C0398, C0396, and C0569. Technician should inspect the terminal at X109 and X3 for proper tension, crimp, fully seated and overall condition.
• 10112872Feb 20, 2013Vehicle speed control, Electrical system, Body and structure. 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 driver door module and/or Passenger Door Module on a vehicles not equipped with front door panel courtesy lights.
• 10112864Feb 18, 2013Body and structure. This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
• 10112862Feb 15, 2013Transmission and drivetrain, Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a surge or stall when in gear at a stop. Technician will find Diagnostic Trouble Code P0742. Technician will need to isolate if the concern is transmission internal or external. Technician will need to disconnect the 20 way connector at the transmission (C-175 for model years 2001 ? 2007 and X-175 for model…
• 10112857Feb 13, 2013Electrical system. This Preliminary Information communication advises the technician that, when testing any circuit for open or resistance, it is imperative that all related terminal pin fit and tension be checked when the test steps require disconnection of the connector or component, prior to any component replacement. Always use the recommended terminal test tool during these tests.
• 10112845Feb 5, 2013Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have no forward or reverse. Technician will need to check for metal debris in torque converter clutch valve.
• 10112844Feb 5, 2013Electrical system, Engine, Exterior lighting. This Preliminary Information communication provides information to the technician about vehicles that have Service Engine Soon Malfunction Indicator Lamp and the engine misfires. Technician may find Diagnostic Trouble Codes P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, and P0308. Technician will need to inspect the spark plug wires. Technician will need to replace any loose spark plug wires.
• 10112842Feb 4, 2013Engine, 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…
• 10253144Feb 1, 2013Engine cooling. SES Light Rough Running And/Or Lack Of Power.
• 10247756Feb 1, 2013Electrical system, Body and structure. Driver or Passenger Door Module DTC B2555.
• 10247662Feb 1, 2013Visibility (wipers, defrost, mirrors). Cold Air Leak On Passenger Floor.
• 10247101Feb 1, 2013Electrical system, Body and structure. Driver or Passenger Door Module DTC B2555.
• 10245745Feb 1, 2013Body and structure. Reduced Heater Performance with Winter Grille Cover Installed
• 10112837Feb 1, 2013Brakes. This Preliminary Information communication provides information to the technician about vehicles that a driveline noise or vibration at various speeds and operating conditions. Technician should be advised that the vehicle should always be restored to a factory configuration when diagnosing noise and vibration concerns.
• 10063161Feb 1, 2013Transmission and drivetrain. Summary to be provided on a future date.
• 10133152Jan 28, 2013Equipment. This informational bulletin provides information on the replacement process for the product quality center.
• 10133151Jan 28, 2013Transmission and drivetrain. This informational bulletin provides information for service agents not required to contact product quality center for CNG, LPG or gasoline engine, transmission and/or transfer case.
• 10133149Jan 28, 2013Electrical system. This technical bulletin provides a procedure on suspected tampering due to aftermarket ALDL or DLC interface devices causing multiple issues.
• 10133147Jan 28, 2013Tires. This informational bulletin provides information on tire radial force variation.
• 10133146Jan 28, 2013Visibility (wipers, defrost, mirrors). This technical bulletin provides a procedure for adding double sided tape on the right and left windshield side reveal moldings to remove tapping, clicking or ticking type noise.
• 10133145Jan 28, 2013Body and structure. This informational bulletin provides information on the body mount bolt being stripped or will not loosen.
• 10133143Jan 25, 2013Electrical system. This informational bulletin provides information on suspected tampering on vehicles modifications for identifying non GM ECM calibrations.
• 10133142Jan 25, 2013Electrical system. This informational bulletin provides information suspected tampering on vehicles modifications for identifying non GM ECM calibrations.
• 10133136Jan 23, 2013Back-over prevention (rear camera), Vehicle speed control. This preliminary informational bulletin provides information on dignostics for a whine noise at varies engine speeds.
• 10133130Jan 16, 2013Body and structure. This informational bulletin provides information pre-painting/cleaning process for TPO plastic fascias.
• 10133128Jan 16, 2013Equipment. This informational bulletin provides information on mounting points for the pickup box accessories.

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