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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.

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Only bulletins with component: Heating and air conditioning are shown. Show all

Bulletins, newest first
PIT3330F2017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about customers may inquire about the availability of the passenger compartment air filter. Dealer should advise the customer starting in 2003 the passenger compartment air filter is no longer available as a factory option.
PIT5014A2017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that have a front passenger flooring wet, water sloshing noise, and/or mist from the dash vents. Technician will need to rotate the drain hose to clear the heat shield.
PIT4211D2017-03-22. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE AN OUTSIDE AIR TEMPERATURE INOPERATIVE. TO PERFORM AN INSTANT UPDATE OF THE AMBIENT TEMPERATURE SENSOR, PRESS AND HOLD THE RECIRC BUTTON AND AIR CONDITIONING BUTTON ON THE HEATER-VENT-AIR CONDITIONING CONTROL HEAD SIMULTANEOUSLY. IT IS ALSO POSSIBLE TO PERFORM THIS BY USING A SCAN TOOL IN SPECIAL FUNCTION MODE AND SELECT INSTANT UPDATE.
PIE-02292012-11-28. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. GMC/CADILLAC/CHEVROLET: HVAC SYSTEM, WHEN TURNED ON, IS VERY NOISY AND THERE IS A LACK OF AIRFLOW, THROUGH VENTS, DUE TO BLOWER MOTOR FAILING TO WORK PROPERLY. MODELS 2012-2013 ESCALADE, ESV, EXT; AVALANCHE, SILVERADO, SUBURBAN, TAHOE; SIERRA, YUKON, YUKON DENALI, YUKON XL, YUKON XL DENALI. *PE
PIE-02222012-09-24. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. GMC/CADILLAC/CHEVROLET: NO AIR IS FLOWING THROUGH HVAC VENTS BECAUSE OF AN INOPERATIVE BLOWER MOTOR. THE SITUATION IS INTERMITTENT. MODELS 2011-12 CADILLAC-ESCALADE, ESCALADE ESV & EXT; GMC-SIERRA, YUKON & XL, YUKON DENALI & XL DENALI; CHEVROLET-TAHOE, SUBURBAN, AVALANCHE & SILVERADO. *PE UPDATED 9/26/12. *PE

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