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Service bulletin PIT4605D

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 id10245301
Published by NHTSA2023-11-20
Manufacturer's numberPIT4605D
Manufacturer's date2013-02-01
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

NHTSA's summary

Cold Air Leak On Passenger Floor.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Glass, wipers and mirrors, Heating and air conditioning

Vehicles listed
CADILLAC ESCALADE2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET AVALANCHE2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET SILVERADO 15002007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET TAHOE2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC SIERRA 15002007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002011 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI2007, 2008, 2009, 2010, 2011, 2012, 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
20110742011-02-21. Heater And Defroster
09V4560002009-11-19. EQUIPMENT:APPLIANCE:AIR CONDITIONER

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
21-NA-0432025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
PI0754G2024-08-17. Service bulletin. This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
PI0754A2024-04-29. Service bulletin. Rear and Side Tempered Glass Spots.
PI0695A2024-04-29. Service bulletin. Diagnosis and Repair HVAC Blower Function.
PI0648A2024-04-29. Service bulletin. Revised HVAC Blower Motor Installation Instructions.
PIT52972024-01-08. Service bulletin. Reduced Air Flow From HVAC Vents.
PIT5099G2023-12-26. Service bulletin. 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.
PIT4605D2023-12-26. Service bulletin. Cold Air Leak On Passenger Floor.
PIT4417H2023-12-26. Service bulletin. Swapping Outside Rearview Mirrors RPOs DL8 / DL3 / DPN.
PIT51982023-12-11. Service bulletin. Power Door Locks and/or Windows Inoperative.