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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.

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
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
PIT51702023-12-11. Service bulletin. SEATS:FRONT ASSEMBLY:POWER ADJUST; ELECTRICAL SYSTEM. Power Seat Moves In Short Bursts and/or Heated Seats
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.
PIC5687C2023-12-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Checking Smartphone Bluetooth Software Update Status
1300890082023-12-11. Service bulletin. ELECTRICAL SYSTEM:WIRING. GM Wiring Repair Strategy Information
1300890032023-12-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Vehicle Software Enhancements
1406040052023-12-11. Service bulletin. UNKNOWN OR OTHER; EQUIPMENT; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. Duramax® Diesel Glow Plugs Difficult to Install Due to Carbon Buildup - New Glow Plug Bore Reamer Available
PIT52692023-12-04. Service bulletin. ELECTRICAL SYSTEM. CD Track Changes Unwanted When Rear Seat Audio Control Is Used To Change XM Station.
PIT5236B2023-12-04. Service bulletin. ELECTRICAL SYSTEM. OnStar Module Does Not Support All B101D Symptom Codes.
122522023-12-04. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION. Rear Vision Camera Guideline Feature Not Working
120601007A2023-12-04. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM; ENGINE; UNKNOWN OR OTHER. New Service Cam Bearings For Gen IV V8 Engines
120089002A2023-12-04. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER; EQUIPMENT. Requesting a New Key Code for Customer with Lost or Stolen Keys
PIT5039C2023-11-20. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. Removing / Disabling Rear Park Assist RPO UD7.
PIT4853D2023-11-20. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU); ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT. Hybrid No Crank or Loss of High Speed Communications.
PIT4821D2023-11-20. Service bulletin. ELECTRICAL SYSTEM. High Voltage 2-Mode Battery Parts Restriction-TAC
PIT4821C2023-11-20. Service bulletin. ELECTRICAL SYSTEM. High Voltage 2-Mode Battery Parts Restriction-TAC.
PIT4816E2023-11-20. Service bulletin. ELECTRICAL SYSTEM. Diagnosing / Troubleshooting Multiple Electrical Concerns / Intermittent No Crank
PIT4813F2023-11-20. Service bulletin. ELECTRICAL SYSTEM. Service Charging System Message Or Low Volt Gauge Reading After Cold Start.
PIT4813E2023-11-20. Service bulletin. ELECTRICAL SYSTEM. Service Charging System Message Or Low Volt Gauge Reading After Cold Start
PIT4560H2023-11-20. Service bulletin. ELECTRICAL SYSTEM. Normal Characteristic - RKE Inoperative/Unable To Program Fobs.
PIT4560G2023-11-20. Service bulletin. ELECTRICAL SYSTEM. Normal Characteristic - RKE Inoperative / Unable To Program Fobs.
PIT4474D2023-11-20. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Navigation or Radio Display Blank Or Flashing DTC B1265 B1288 Or B1289.

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