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Service bulletin PI-0648

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 id10043510
Published by NHTSA2012-04-07
Manufacturer's numberPI-0648
Manufacturer's date2012-12-01
ReplacesPI-0648-A
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

CADILLAC/CHEVROLET/GMC: ORIGINAL STYLE BLOWER MOTOR ASSEMBLY IS NO LONGER AVAILABLE. A REVISED HVAC BLOWER MOTOR ASSEMBLY FOR FULL SIZE TRUCKS IS REQUIRED, WITH MODIFICATIONS, TO FUNCTION PROPERLY. *PE UPDATED 2/25/13. *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 ESCALADE2007, 2008, 2009, 2010
CADILLAC ESCALADE ESV2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2007, 2008, 2009, 2010
CHEVROLET SILVERADO2007, 2008, 2009, 2010
CHEVROLET SUBURBAN2007, 2008, 2009, 2010
CHEVROLET TAHOE2007, 2008, 2009, 2010
GMC SIERRA2007, 2008, 2009, 2010
GMC YUKON2007, 2008, 2009, 2010
GMC YUKON DENALI2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2007, 2008, 2009, 2010

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
20110742011-02-21. Heater And Defroster
20101892010-06-07. Accessories
09V4560002009-11-19. EQUIPMENT:APPLIANCE:AIR CONDITIONER
09V3250002009-08-03. EQUIPMENT ADAPTIVE/MOBILITY

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.
PI0657A2024-04-29. Service bulletin. Liftgate Paint Damage Evident at Lower Outer Edge of Applique.
PI0648A2024-04-29. Service bulletin. Revised HVAC Blower Motor Installation Instructions.
20-NA-1322024-04-23. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
20-NA-1322024-04-05. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIT53532024-04-01. Service bulletin. XM Audio Traffic And Travel Link Availability And Operation.
23-NA-1032024-03-29. Service bulletin. This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).
07-00-89-037S2024-03-19. Service bulletin. This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.