WenmarOpen by Wenmar Pro

Service bulletin PIE-0229

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10047379
Published by NHTSA2012-11-28
Manufacturer's numberPIE-0229
Manufacturer's date2012-09-01
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

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

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Equipment and accessories, Heating and air conditioning

Vehicles listed
CADILLAC ESCALADE2011
CADILLAC ESCALADE ESV2012 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2012 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2012
CHEVROLET AVALANCHE 15002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO2012, 2013
CHEVROLET SUBURBAN2012
CHEVROLET TAHOE2012
GMC SIERRA2012, 2013
GMC YUKON2012, 2013
GMC YUKON DENALI2012 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2012 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2012, 2013 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
18V2670002018-04-26. EQUIPMENT
13V5440002015-10-30. EQUIPMENT:OTHER:LABELS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
PI0488C2024-05-06. Service bulletin. Diagnostic Information for Transmission.
PI0718B2024-04-29. Service bulletin. Audio System Speaker Rattle, Buzz Noise, Poor Sound
PI0695A2024-04-29. Service bulletin. Diagnosis and Repair HVAC Blower Function.
PI0689B2024-04-29. Service bulletin. Tool or Utility Box Sagging, Mis-aligned.
PI0688F2024-04-29. Service bulletin. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
PI0688E2024-04-29. Service bulletin. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
PI0688D2024-04-29. Service bulletin. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
PI0657A2024-04-29. Service bulletin. Liftgate Paint Damage Evident at Lower Outer Edge of Applique.
20-NA-1322024-04-23. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
17-NA-0522024-04-23. Service bulletin. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.