WenmarOpen by Wenmar Pro

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
120421001B2023-12-04. Service bulletin. STRUCTURE; UNKNOWN OR OTHER. Transfer Case Identification First Design vs. Second Design
1203100032023-12-04. Service bulletin. WHEELS:LUGS/NUTS/BOLTS/STUDS; SUSPENSION; TIRES; WHEELS; UNKNOWN OR OTHER. Diagnostic Tips for Difficult to Resolve Tire/Wheel Vibration Concerns
120232001A2023-12-04. Service bulletin. FUEL SYSTEM, GASOLINE; STEERING; POWER TRAIN; STEERING:HYDRAULIC POWER ASSIST SYSTEM; POWER TRAIN:DRIVELINE:HYDRAULIC:HOSES AND FITTINGS. Hydraulic Power Steering Leak at Hose Connection to Steering Rack
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
03-00-91-001I2023-11-22. Service bulletin. WHEELS; POWER TRAIN; STEERING; SUSPENSION; ENGINE AND ENGINE COOLING. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
PIT5049A2023-11-20. Service bulletin. SUSPENSION. Rattle Squeak Clunk Bump Noise From Front Suspension.
PIT4954C2023-11-20. Service bulletin. SUSPENSION. Suspension.
PIT4911S2023-11-20. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. Navigation Radio Radio And Integrated Center Stack
PIT4816E2023-11-20. Service bulletin. ELECTRICAL SYSTEM. Diagnosing / Troubleshooting Multiple Electrical Concerns / Intermittent No Crank
PIT4729E2023-11-20. Service bulletin. SERVICE BRAKES; TRAILER HITCHES. Adding Integrated Trailer Brake Controller RPO JL1.
PIT4605D2023-11-20. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Cold Air Leak On Passenger Floor.
PIT4508C2023-11-20. Service bulletin. VEHICLE SPEED CONTROL; VEHICLE SPEED CONTROL:CRUISE CONTROL. Cruise Control Inoperative.
PIT4474D2023-11-20. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Navigation or Radio Display Blank Or Flashing DTC B1265 B1288 Or B1289.
PIT4417H2023-11-20. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. Swapping Outside Rearview Mirrors RPOs DL8 / DL3 / DPN.
PIT4322G2023-11-20. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Unwanted Stability Activation and/or C0710.
PIT4322F2023-11-20. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Unwanted Stability Activation And/Or C0710.
20-NA-1592023-11-15. Service bulletin. WHEELS. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
05-00-89-029F2023-10-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.
17-NA-1702023-10-25. Service bulletin. WHEELS. 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.
01-06-01-011O2023-10-25. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
07-08-49-020R2023-10-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
20-NA-1592023-10-18. Service bulletin. TIRES; WHEELS. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
10-00-89-006J2023-10-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
02-00-89-002W2023-10-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).
17-NA-1572023-09-26. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter.

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