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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
PIT5962A2024-01-29. Service bulletin. ELECTRICAL SYSTEM:HAND HEATER:WIRING HARNESS; UNKNOWN OR OTHER. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
02-08-42-001J2024-01-19. Service bulletin. EXTERIOR LIGHTING. This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
23-NA-2242024-01-13. Service bulletin. POWER TRAIN. This bulletin advises the technician that the 6L50 (MYB), 6L80 (MYC) and 6L90 (MYD) Transmission Oil Filter and Seal Kit part number 24236933 is currently transitioning from a kit to the filter (24236517) and seal (24225347) being sold individually.
Recalls2024-01-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Vehicle Recalls
PIT5099G2023-12-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
PIP4112T2023-12-26. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This concern may also be present while cruising at highway speeds and then an aggressive increase in throttle. This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to downshift.
PIT5209A2023-12-26. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. Unwanted Alarm Sounding (GM Accessory Inclination Sensor Mounting)
PIT52092023-12-26. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. Unwanted Alarm Sounding (GM Accessory Inclination Sensor Mounting)
PIT52012023-12-26. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY:DOOR. Driver or Passenger Door Module DTC B2555.
PIT5195B2023-12-26. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. Speedometer Needle Accuracy Information.
PIT51952023-12-26. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. Speedometer Needle Accuracy Information
PIT51852023-12-26. Service bulletin. ELECTRICAL SYSTEM:IGNITION. Computer-Controlled Cranking System (Bump Start) Inoperative.
PIT51842023-12-26. Service bulletin. STEERING; VEHICLE SPEED CONTROL:CRUISE CONTROL. Various Concerns Related To The IP Backlighting Cruise Control Steering Wheel Controls Horn.
PIT51822023-12-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Button Backlighting Inoperative.
PIT5180A2023-12-26. Service bulletin. STRUCTURE. Whistle Noise From Drivers Side A Pillar Area.
PIT51802023-12-26. Service bulletin. STRUCTURE. Whistle Noise From Drivers Side A Pillar Area
PIT5120A2023-12-26. Service bulletin. SERVICE BRAKES. Stabilitrak/Traction Control OFF With Red Brake Warning Lamp
PIT5074H2023-12-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
PIT5074G2023-12-26. Service bulletin. UNKNOWN OR OTHER; EQUIPMENT:ELECTRICAL. Terminal Test Probe And Replacement Terminal.
PIT5066A2023-12-26. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; UNKNOWN OR OTHER. Intermittent Battery Draw Dead Battery Or HVAC Odor.
PIT5049A2023-12-26. Service bulletin. SUSPENSION. Rattle Squeak Clunk Bump Noise From Front Suspension.
PIT4954C2023-12-26. Service bulletin. SUSPENSION. Suspension.
PIT4911S2023-12-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Navigation Radio Radio And Integrated Center Stack
PIT4864F2023-12-26. Service bulletin. EQUIPMENT. Information On Requests To Add OnStar Bluetooth Option.
PIT4816E2023-12-26. Service bulletin. ELECTRICAL SYSTEM. Diagnosing / Troubleshooting Multiple Electrical Concerns / Intermittent No Crank

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