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Service bulletins for the 2012 Chevrolet Avalanche

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.

1612 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
130232001B2023-12-11. Service bulletin. STEERING. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions
130232001A2023-12-11. Service bulletin. STEERING. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions
1300900012023-12-11. Service bulletin. ENGINE AND ENGINE COOLING. Information for Engine Oils Used in 2014 Model Year Vehicles
1300890102023-12-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. PAC Courtesy Transportation Assistance Program
1300890082023-12-11. Service bulletin. ELECTRICAL SYSTEM:WIRING. GM Wiring Repair Strategy Information
130089004D2023-12-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Car and Truck Fix it Right the First Time Issues
130089004C2023-12-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Car and Truck Fix it Right the First Time Issues
130089004B2023-12-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Car and Truck Fix it Right the First Time Issues
130089004A2023-12-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Car and Truck Fix it Right the First Time Issues
1300890042023-12-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Car and Truck Fix it Right the First Time Issues
1300890032023-12-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Vehicle Software Enhancements
090730018D2023-12-11. Service bulletin. POWER TRAIN. Change in Automatic Transmission Add Condition Documentation and Claim Submission
090730018C2023-12-11. Service bulletin. POWER TRAIN. Warranty Administration ? Change in Automatic Transmission Add Condition Documentation and Claim Submission
990940005G2023-12-11. Service bulletin. SEAT BELTS. Seat Belt Extender Availability
990420002I2023-12-11. Service bulletin. POWER TRAIN:DRIVELINE. Information on Driveline Clunk Noise
15NA082B2023-12-11. Service bulletin. SUSPENSION. Clunking Noise from Front of Vehicle During Turns and/or Bumps
15NA0822023-12-11. Service bulletin. SUSPENSION. Clunking Noise from Front of Vehicle During Turns and/or Bumps
PIT52692023-12-04. Service bulletin. ELECTRICAL SYSTEM. CD Track Changes Unwanted When Rear Seat Audio Control Is Used To Change XM Station.
PIT5264B2023-12-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
PIT52642023-12-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Canadian Customers Unable To Place Calls In The United States
PIT5236B2023-12-04. Service bulletin. ELECTRICAL SYSTEM. OnStar Module Does Not Support All B101D Symptom Codes.
PIT52152023-12-04. Service bulletin. SEATS. GM Accessory Heated Seats Inoperative After Installation.
PIT52142023-12-04. Service bulletin. SUSPENSION. GM TAC Support of Vehicle Vibration Complaints.
1308116001A2023-12-04. Service bulletin. EQUIPMENT:ELECTRICAL. Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues
120601007A2023-12-04. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM; ENGINE; UNKNOWN OR OTHER. New Service Cam Bearings For Gen IV V8 Engines

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