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.

• 10241416Aug 1, 2023Fuel system. This service bulletin provides information on availability of Diesel Fuel additives.
• 10241415Aug 1, 2023Equipment. This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
• 10240359Jul 31, 2023Electrical system, Engine cooling. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10240344Jul 31, 2023Engine cooling. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
• 10239647Jul 21, 2023Transmission and drivetrain. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
• 10240793Jul 18, 2023Equipment. This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
• 10239755Jul 17, 2023Seat belts. This service bulletin provides information on availability for a seat belt extender.
• 10239658Jul 17, 2023Equipment. This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen.
• 10240786Jul 13, 2023Equipment. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
• 10239629Jul 13, 2023Exterior lighting, Electrical system. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
• 10239124Jun 30, 2023Body and structure. This service bulletin provides information on Paintless Dent Repair Process.
• 10239101Jun 30, 2023Engine cooling. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
• 10239103Jun 29, 2023Transmission and drivetrain. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
• 10239102Jun 29, 2023Electrical system. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
• 10238190Jun 14, 2023Equipment. This service bulletin describes the U.S. Dealer Special Tool Loan Program process.
• 10239154Jun 9, 2023Tires. This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.
• 10237960Jun 8, 2023Equipment. This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).
• 10237846Jun 7, 2023Engine cooling, Transmission and drivetrain. This service bulletin provides information to dealership personnel on automatic transmission shift and engine driveability concerns and/or MIL ON due to aftermarket oil bath air filter use.
• 10237841Jun 1, 2023Equipment. This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).
• 10237387May 30, 2023Transmission and drivetrain. This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
• 10237340May 22, 2023Wheels. This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).
• 10237671May 19, 2023Electrical system. This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
• 10237659May 15, 2023Transmission and drivetrain, Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency…
• 10237648May 9, 2023Body 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.
• 10235799Apr 27, 2023Wheels. This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.
• 10235798Apr 25, 2023Other or unknown. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10236164Apr 24, 2023Engine cooling. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
• 10235802Apr 24, 2023Engine cooling. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
• 10235716Apr 21, 2023Wheels. This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).
• 10235713Apr 19, 2023Equipment. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
• 10234621Apr 6, 2023Other or unknown, Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10234620Apr 6, 2023Equipment. This service bulletin provides information on proper use of floor mats.
• 10234619Apr 6, 2023Transmission and drivetrain. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
• 10235397Apr 5, 2023Engine cooling, Fuel system. This service bulletin explains how to identify possible DEF system contamination.
• 10235561Apr 4, 2023Steering, Engine cooling, Body and structure, Transmission and drivetrain…. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
• 10235398Apr 4, 2023Equipment, Electrical system, Engine cooling. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
• 10234141Mar 23, 2023Engine cooling. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
• 10234144Mar 20, 2023Engine cooling, Electrical system, Wheels, Fuel system. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
• 10234139Mar 20, 2023Fuel system. This service bulletin provides information on availability of Diesel Fuel additives.
• 10234110Mar 17, 2023Engine cooling. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
• 10233835Mar 17, 2023Engine cooling. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
• 10233830Mar 17, 2023Engine cooling. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
• 10233829Mar 17, 2023Engine cooling. This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
• 10234105Mar 16, 2023Engine cooling. This service bulletin explains how to identify possible DEF system contamination.
• 10233838Mar 16, 2023Engine cooling, Fuel system. This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.
• 10233831Mar 16, 2023Engine cooling. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
• 10233844Mar 15, 2023Engine cooling. This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
• 10233833Mar 14, 2023Engine cooling. This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
• 10233338Mar 8, 2023Tires, Wheels. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10233331Mar 8, 2023Steering. This service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.

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