Dust Intruding Into Cabin Interior (PI1216)

Publication date: 2014-04-14
Reference number: PI1216

DUST INTRUDING INTO CABIN INTERIOR

TECHNICAL SERVICE BULLETIN

Reference Number(s): PI1216, Date of Issue: April 14, 2016

Affected Model(s):	007-2013 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.

Courtesy of GENERAL MOTORS COMPANY

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.
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.

Courtesy of GENERAL MOTORS COMPANY
Carefully cut out the molded-in cabin air filter access panel using a suitable tool. Keep the tool inside the groove at all times.

Courtesy of GENERAL MOTORS COMPANY

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.
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.

Courtesy of GENERAL MOTORS COMPANY

Courtesy of GENERAL MOTORS COMPANY

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

Courtesy of GENERAL MOTORS COMPANY

Tighten Tighten the fastener to 1.6 (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)