File in Section:

Service Bulletin

Bulletin No.:
Date:

PI1216
April, 2014

PRELIMINARY INFORMATION
Subject:

Dust Intruding into Cabin Interior

Models:

2007-2013 Cadillac Escalade EXT
2007-2014 Cadillac Escalade, Escalade ESV
2007-2013 Chevrolet Avalanche, Silverado 1500
2007-2014 Chevrolet Silverado 2500/3500, Suburban, Tahoe
2007-2013 GMC Sierra 1500
2007-2014 GMC Sierra 2500/3500, Yukon Models, Yukon XL Models
Excluding Extended and Crew Cab Pickup (with RPO C67)

Attention: Any changes or modifications to the vehicle should be first reviewed with the
customer, and then noted on the repair order with customer approval. This is for
customer satisfaction; this is not a warranty procedure.

Condition/Concern
Some customers may comment that dust is intruding into the cabin interior.
If the vehicle is driven primarily in high dust conditions, it may be possible for some residual dust to enter the cabin of
the truck through the fresh air intake in the plenum, then through the HVAC case.

Recommendation/Instructions
At request of customer, install a cabin air filter following instructions below.
These vehicles did not come with a cabin air filter from the factory. First-time installation of the cabin air filter will
require an installation kit. There are two different types of filter media offered; particulate or carbon/particulate. Refer
to the part numbers listed in the Parts Information following the procedure below.

3792646

1. Locate and remove the screws holding the right side lower insulator panel as shown in the illustration above.
Refer to Instrument Panel Insulator Replacement in SI.

3802051

2. On the underside of the HVAC case, inboard of the blower motor, locate the groove (2) around the molded-in
cabin air filter access panel (1) as shown in the illustration above.

3792501

3. Carefully cut out the molded-in cabin air filter access panel using a suitable tool. Keep the tool inside the groove
at all times.
Note: The size of the opening is 10.25” x 1” (260.3 mm x 25.4 mm) as shown in the illustration above.
Important: Once the molded-in cabin filter access panel is removed, ensure the opening is free of burrs and debris.

3792667

4. Bend the top stage and slowly insert the cabin air filter into the HVAC module, with the filter stages (cut outs)
facing inboard while the pull strip is pointed down as shown in the illustrated above.

3792506

Important: The cabin air filter MUST be flush with the HVAC module access opening as shown in the illustration
above.

3792603

5. Install the cabin air filter cover plate hook onto the slot in the HVAC module and press the cover flush while
installing the fastener as shown in the illustration above.

Tighten
Tighten the fastener to 1.6 Y (14 lb in).

Parts Information
Part Number

Description

22759208

FILTER KIT, PASS COMPT AIR (Initial Installation Kit, with Removable Filter Cover)
(w/o Filter)

22759203

FILTER, PASS COMPT AIR (Particulate Media)

23101674

FILTER, PASS COMPT AIR (Carbon/Particulate Media)