2012 GMC Sierra 1500 Technical Service Bulletins

892 technical service bulletins (TSBs) are on record for the 2012 GMC Sierra 1500. 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.

• 10078481Apr 12, 2016Equipment. This informational bulletin provides information on the purpose of magnetic drain plugs.
• 10078480Apr 12, 2016Suspension. This technical bulletin provides a procedure to re-torque the joints of the rear leaf spring assembly to correct a customer concern of a clunking noise coming from the rear of the vehicle.
• 10078472Apr 12, 2016Visibility (wipers, defrost, mirrors). This informational bulletin provides information on a normal condition on tempered glass of spots showing on the rear and side windows when the vehicle is in the sunlight.
• 10083900Apr 8, 2016Equipment, Electrical system. This preliminary information communication advises the technician, if unable to place an onstar call in the ignition on mode after the onstar canada upgrade to contact the gm technical assistance center onstar group for further assistance.
• 10078435Apr 7, 2016Equipment, Body and structure. This preliminary informational bulletin provides information that may be helpful when addressing underbody component corrosion with customers.
• 10083863Apr 6, 2016Electrical system, Transmission and drivetrain. This preliminary information communication provides information on the drive motor generator control module part restriction. Dealer will need to call gm technical assistance center for further instructions.
• 10078609Apr 6, 2016Electrical system. This preliminary information communication provides information on the drive motor generator control module part restriction. Dealer will need to call gm technical assistance center for further instructions.
• 10083512Apr 5, 2016Visibility (wipers, defrost, mirrors), Equipment. This preliminary information communication advises the technician the steps on diagnosing the concern. Vehicle's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
• 10078604Apr 5, 2016Electrical system, Body and structure, Visibility (wipers, defrost, mirrors). This preliminary information communication advises the technician the steps on diagnosing the concern. Vehicle's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
• 10083860Apr 4, 2016Transmission and drivetrain, Electrical system. This preliminary information communication advises the technician that the part restriction for the accessory dc power control module and the seal kit has ended.
• 10248430Apr 1, 2016Electrical system. Emergency Vehicle Reduced Power
• 10078434Apr 1, 2016Transmission and drivetrain. This informational bulletin provide information on the operating characteristics of a manual transmission.
• 10078430Apr 1, 2016Steering. "this technical bulletin provides a procedure to inspect the steering gear for a normal condition of grease or sealant on exterior case of gear due to the manufacturing process."
• 10078428Apr 1, 2016Engine. This informational bulletin provides information on a engine knock on cold start.
• 10078425Apr 1, 2016Electrical system. This preliminary informational bulletin provides information on poor radio hands-free voice recognition performance or sound quality after the onstar upgrade.
• 10078424Apr 1, 2016Engine cooling. This informational bulletin provides information on changes in exhaust tone for active fuel management engines when in three or four cylinder mode.
• 10090361Mar 8, 2016Suspension. 14520a - special coverage (revised to include 2007, and 2010-2013 model year chevrolet silverado and gmc sierra light duty trucks, along with expanding coverage to certain u.s. States).
• 10116914Feb 23, 2016Tires, Wheels. This informational bulletin provides information on the proper mounting paste to apply to tires when mounting and balancing them to prevent conditions like Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel)
• 10116912Feb 22, 2016Equipment. This informational bulletin provides Information Regarding Servicing Components Located Near SIR Components and how to properly disable the SIR system for repairs at or near
• 10096141Feb 18, 2016Equipment. This preliminary information communication provides information to the technician about vehicles that may have an outside air temperature inoperative. To perform an instant update of the ambient temperature sensor, press and hold the recirc button and air conditioning button on the heater-vent-air conditioning control head simultaneously. It is also possible to perform this by using a scan tool in special function…
• 10096079Feb 2, 2016Engine cooling. This preliminary information communication provides information to the technician that some vehicle may have an “exhaust fluid quality poor” on the driver information center or a diesel exhaust fluid warning lamp on or other exhaust fluid quality related concerns. Technician will inspect the diesel exhaust fluid for contamination.
• 10095683Feb 2, 2016Engine, Equipment. This preliminary information communication provides information to the technician on vehicles that may have an intermittent high idle. If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle speed description tables, the idle speed should be considered a normal characteristic of current vehicle design.
• 10095613Feb 1, 2016Equipment, Electrical system, Transmission and drivetrain. This preliminary information communication provides information to the technician on the steps for diagnosing and repairing vehicles with diagnostic trouble code p0c2b with or without p2797. Technician should not replace the auxiliary transmission fluid pump. Technician will follow published diagnosis inspect the wiring between the hpcm and the auxiliary transmission fluid pump control module.
• 10112302Jan 28, 2016Seats, Air bags. This informational bulletin provides Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
• 10097189Jan 26, 2016Engine. This preliminary information communication provides information to the technician about vehicles that may have service engine soon and a diagnostic trouble code p0011. If the technician has followed service information diagnostic trouble code for p0011and the root cause was not found the oil pressure at the oil pressure sender should be checked. Also the number 2 cam bearing should be inspected.
• 10247680Jan 13, 2016Electrical system. Hybrid No Crank or Loss of High Speed Communications.
• 10246963Jan 13, 2016Equipment. Changing Turn-By-Turn Voice Response To Metric Or English Units
• 10245319Jan 13, 2016Electrical system. Hybrid No Crank or Loss of High Speed Communications.
• 10246639Jan 1, 2016Steering. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions
• 10250048Dec 1, 2015Back-over prevention (rear camera). Clunking Noise from Front of Vehicle During Turns and/or Bumps
• 10250047Dec 1, 2015Back-over prevention (rear camera). Clunking Noise from Front of Vehicle During Turns and/or Bumps
• 10246600Dec 1, 2015Air bags. Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages
• 10246535Dec 1, 2015Suspension. Clunking Noise from Front of Vehicle During Turns and/or Bumps
• 10246534Dec 1, 2015Suspension. Clunking Noise from Front of Vehicle During Turns and/or Bumps
• 10201117Dec 1, 2015Equipment, Body and structure. Clunking Noise from Front of Vehicle During Turns and/or Bumps
• 10201115Dec 1, 2015Equipment, Other or unknown. OnStar Voice Fallback Number Update
• 10201104Dec 1, 2015Engine. Information on Exhaust fluid range, exhaust fluid quality poor, service exhaust fluid system or service emission system driver information Center Messages
• 10201103Dec 1, 2015Equipment, Engine. Clean Exhaust Filter see owners manual now or cleaning exhaust filter keep driving until message is cleared displayed on DIC, DTC P2463 May be set
• 10201101Dec 1, 2015Equipment. Information on Mounting Points for Pickup Box Accessories
• 10201100Dec 1, 2015Engine, Engine cooling. New Tool Availability - EN-48974-EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax Diesel Engine EGR Cooler Engine Coolant Leaks into Combustion Chamber
• 10201098Dec 1, 2015Transmission and drivetrain, Engine. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
• 10201097Dec 1, 2015Engine cooling, Engine. Information on Diesel Engine Ticking Noise
• 10190521Dec 1, 2015Suspension. Clunking Noise from Front of Vehicle During Turns and/or Bumps Some customers may comment on a clunking noise originating from the front of the vehicle that is more predominant during turns or traveling over bumps. This may be caused by a damaged stabilizer shaft frame bracket. There have been some cases in which the bracket is cracked, as shown. This condition has been found to be the result of insufficient welds…
• 10190506Dec 1, 2015Engine cooling. Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System Driver Information Center Messages
• 10190503Dec 1, 2015Engine, Transmission and drivetrain. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
• 10190502Dec 1, 2015Engine cooling. Information on Diesel Engine Ticking Noise
• 10190381Dec 1, 2015Engine cooling. CLEAN EXHAUST FILTER SEE OWNERS MANUAL NOW or CLEANING EXHAUST FILTER KEEP DRIVING UNTIL MESSAGE IS CLEARED Displayed on DIC, DTC P2463 May Be Set
• 10190379Dec 1, 2015Equipment, Engine cooling. New Tool Availability — EN-48974 – EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax® Diesel Engine EGR Cooler Engine Coolant Leaks into Combustion Chamber
• 10115143Nov 30, 2015Engine cooling. This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the grounds ring terminal at the engine block for the bank with the concern and repair the wire.
• 10126401Oct 30, 2015Body and structure. This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only).

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