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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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Bulletins, newest first
20-NA-1322023-12-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIT5209A2023-12-11. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. Unwanted Alarm Sounding (GM Accessory Inclination Sensor Mounting)
PIT52092023-12-11. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE. Unwanted Alarm Sounding (GM Accessory Inclination Sensor Mounting)
PIT52082023-12-11. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE. Fuel Gauge Shows Empty After Refueling And DTC P2636.
PIT5206B2023-12-11. Service bulletin. POWER TRAIN. Unwanted Grade Braking - Low Power - And/Or Transmission Busy Shifting.
PIT52062023-12-11. Service bulletin. POWER TRAIN. Unwanted Grade Braking, Low Power, and/or Transmission Busy Shifting.
PIT52012023-12-11. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY:DOOR. Driver or Passenger Door Module DTC B2555.
PIT5195B2023-12-11. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. Speedometer Needle Accuracy Information.
PIT51952023-12-11. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. Speedometer Needle Accuracy Information
PIT51852023-12-11. Service bulletin. ENGINE AND ENGINE COOLING. Computer-Controlled Cranking System (Bump Start) Inoperative.
PIT51842023-12-11. Service bulletin. STEERING; VEHICLE SPEED CONTROL:CRUISE CONTROL. Various Concerns Related To The IP Backlighting Cruise Control Steering Wheel Controls Horn.
PIT51822023-12-11. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Button Backlighting Inoperative.
PIT51812023-12-11. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). SES MIL With P057C And/Or P057D Service Stability Message.
PIT5180A2023-12-11. Service bulletin. STRUCTURE. Whistle Noise From Drivers Side A Pillar Area.
PIT51802023-12-11. Service bulletin. STRUCTURE. Whistle Noise From Drivers Side A Pillar Area
PIT51772023-12-11. Service bulletin. EQUIPMENT:ELECTRICAL. Inaccurate Or Slow Response Of Outside Air Temperature Display.
PIT51702023-12-11. Service bulletin. SEATS:FRONT ASSEMBLY:POWER ADJUST; ELECTRICAL SYSTEM. Power Seat Moves In Short Bursts and/or Heated Seats
PIT5166C2023-12-11. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. High Pitch Sound From Radio Display
PIT5161B2023-12-11. Service bulletin. SERVICE BRAKES. Bump Feel Or Clunk Noise After A Stop.
PIT5122D2023-12-11. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL; SERVICE BRAKES. Stability Message Low Power Brake Light And Cruise Control Operation.
PIT5120A2023-12-11. Service bulletin. SUSPENSION; SUSPENSION: ADJUSTMENT:AUTOMATIC ELECTRICAL/HYDRAULIC. Stabilitrak/Traction Control OFF With Red Brake Warning Lamp
PIT5099A2023-12-11. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. A/C Blows Warm Or Poor Performance.
PIT5074H2023-12-11. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
PIT5074G2023-12-11. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Terminal Test Probe And Replacement Terminal.
PIC5687D2023-12-11. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. Checking Smartphone Bluetooth Software Update Status

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