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Service bulletins for the 2011 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.

1558 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
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.
121382023-12-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. Transmission Dipstick Tube Fracture
11273B2023-12-04. Service bulletin. BACK OVER PREVENTION. Special Coverage Adjustment ? Throttle Position Sensor Replacement
110844003A2023-12-04. Service bulletin. EQUIPMENT:ELECTRICAL. Generation 9 OnStar® Modules Inoperative, Bluetooth Inoperative and Possible Battery Discharge Condition (Replace OnStar® VCIM)
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
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
110604007C2023-12-04. Service bulletin. EXTERIOR LIGHTING; POWER TRAIN. Diagnosis and Repair - Malfunction Indicator Lamp (MIL) Illuminated, Reduced Engine Power Message Displayed, DTC P2135 Set
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.
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.

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