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Service bulletins for the 2012 GMC Sierra

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

2268 on file from NHTSA, as of 2026-10-19.

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By component

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
PIT4733J2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician that customers may inquire as to the availability of OnStar bluetooth on their vehicle. Technician should be advised that Vehicles with Regular Production Option Code (UPF or UWE) offer Bluetooth through the OnStar system.
PIC5687B2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about vehicles that loose connection between the vehicle and a Bluetooth phone. Technician will need to use a scan tool to check the "Firmware Over-the-Air" value. If the "Firmware Over-the-Air" value is up to date and customer's concern is still present contact General Motors Technical Assistance Center for further assistance.
PIT4600E2017-08-15. Service bulletin. SERVICE BRAKES, ELECTRIC; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about Electronic Brake Control Module relearn procedure is required anytime the Electronic Brake Control Module is replaced or has been Service Programming System reprogrammed.
PIT5059A2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; INTERIOR LIGHTING. This Preliminary Information communication provides information to the technician about the roof beacon switch. The roof beacon switch will be left disconnected from the assembly plant. When a roof beacon light is added technician will need to plug the harness into the switch.
PIT4163E2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician about vehicles that only have audio from the front left speaker after replacing the amplifier. Technician should program the amplifier using Tis-2-Web using Service Programming System with the latest calibrations.
PIT5014A2017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that have a front passenger flooring wet, water sloshing noise, and/or mist from the dash vents. Technician will need to rotate the drain hose to clear the heat shield.
PIT4844D2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; VEHICLE SPEED CONTROL:CRUISE CONTROL; STEERING; ELECTRICAL SYSTEM:WIRING. 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 buttons, steering wheel sir coil, and steering column wiring harness.
PIT5166B2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that have a high pitch buzz, whine, squeal, or hum noise from the radio display. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
PIC5491A2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. 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. If the OnStar system is still inoperative continue with published Service Information diagnostics.
PIT4357F2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that have the content theft alarm is inoperative. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. Technician should be advised that the vehicle must have Keyless Entry Regular Production Option Code (AU0/AU3) and Regular Production Option Code YE9 or Y91 to be equipped with content theft alarm.
PIT4169F2017-08-15. Service bulletin. SERVICE BRAKES, ELECTRIC; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that have a "Service Stability Message" appears on the Drivers Information Center. Technician will find Diagnostic Trouble Code C0561 set in the Electronic Brake Control Module. Technician will need to address any other Diagnostic Trouble Codes that are set in the vehicle first before working on Diagnostic Trouble Code C0561.
PIP4826C2017-08-15. Service bulletin. STRUCTURE; EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary Information communication provides information to the technician about vehicles that have a vibration, moan, or buzz type noise heard from either inside the passenger compartment, or from under the hood. Technician will need to replace the new design hose with the first design hose. Technician will also rotate the inlet heater hose.
PIT4089H2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SEATS. This Preliminary Information communication provides information to the technician about vehicles that are unable to set a personalized easy exit seat and/or power tilt column position and they will only move a predetermined amount. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIT3099J2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts. Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.
PIT4228E2017-08-15. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that have passenger window express down feature is inoperative. Technician should be advised that models equipped with either Memory Seats Regular Production Option Code (AN3) and/or Power Folding Mirrors Regular Production Option Code (DL3) will have the passenger window express down feature. Dealer should advised the customer if the vehicle does not have one of the Regular Production Option Codes AN3 and or DL3, this is a normal operating characteristic.
PIT51842017-08-15. Service bulletin. ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. 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. Technician should inspect for a short to ground on the steering wheel near the Supplemental Inflatable Restraint coil connector X2 and make necessary repairs to any shorted circuits and then position the wiring.
PIC57592017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician about vehicles that have a message on the radio "maximum number of phones are currently paired to the vehicle". Dealer should advise the customer this is normal operation of the vehicle due to the maximum number of five phones can be paired to a vehicle.
PIP5065A2017-08-15. Service bulletin. EQUIPMENT:MECHANICAL; POWER TRAIN:AUTOMATIC TRANSMISSION. 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 replace the Reaction Carrier and the Low and Reverse Roller Clutch.
PIT4560G2017-08-15. Service bulletin. STRUCTURE:BODY:DOOR; LATCHES/LOCKS/LINKAGES:DOORS:LATCH; EQUIPMENT:ELECTRICAL. 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.
PIT51702017-08-15. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that the front and/or rear heated seats are inoperative and/or the driver's power seat only moves in short bursts each time the seat switch is operated. Technician will need to reprogram only the affected module (Memory Seat Module, Rear Heated/Vented Seat Module, or Front Seat Heating Control Module) with updated calibrations in Tis-2-Web.
PIT4560H2017-08-15. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; EQUIPMENT:ELECTRICAL; STRUCTURE:BODY:DOOR. 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.
PIC5491D2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING 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. If the OnStar system is still inoperative continue with published Service Information diagnostics. Technician may need to contact General Motors Technical Assistance Center depending on the STID, Station ID, or OnStar Customer Identifier.
PIP5100A2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary Information communication provides information to the technician about vehicles that will not move in forward or reverse. Technician may find Diagnostic Trouble Codes P0701, P0729, P0731, P0732, P0733, P0734, P0735, P0751, P0756, P0761, P0877, or P2723. Technician will inspect the valve body separator plate orifices for blockage due to an aftermarket spin-on filter.
PIT52432017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS; STRUCTURE:BODY:TAILGATE. 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.
PIT52422017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician that after turning the ignition off and opening the driver's door that they can turn the radio on. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.