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Service bulletin PIT3504D

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 id10025770
Published by NHTSA2008-09-05
Manufacturer's numberPIT3504D
Manufacturer's date2008-09-05
NHTSA componentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

SOME CUSTOMERS MAY COMMENT ON VARIOUS HVAC CONCERNS INCLUDING TEMPERATURE DOORS DEFAULTING TO FULL HOT POSITION OR UNABLE TO OBTAIN DEFROST POSITION. *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, Labels and manuals

Vehicles listed
CADILLAC ESCALADE2003, 2004, 2005, 2006
CADILLAC ESCALADE ESV2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2003, 2004
CHEVROLET AVALANCHE 15002003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO2003, 2004, 2005, 2006, 2007
CHEVROLET SUBURBAN 15002003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2003, 2004, 2005, 2006
GMC SIERRA2003, 2004, 2005, 2006, 2007
GMC YUKON2003, 2004, 2005, 2006
GMC YUKON DENALI2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL DENALI2003 (the catalog's model; the bulletin names a series or trim of it)
HUMMER H22003, 2004, 2005, 2006, 2007

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

Recalls for the same vehicles and component
20101892010-06-07. Accessories
09V4560002009-11-19. EQUIPMENT:APPLIANCE:AIR CONDITIONER
08V5190002008-10-06. EQUIPMENT ADAPTIVE/MOBILITY
05V5520002005-12-07. EQUIPMENT:OTHER:LABELS
04V5620002004-11-26. EQUIPMENT ADAPTIVE/MOBILITY
20030632003-03-17. Label

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

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