2005 Cadillac Escalade cabin air filter change & locati

The cabin filter was deleted on Escalades after 02, although it may still show one in the parts catalog. Here is the official info:

#PI01348: Passenger Compartment Air Filter - aftermarket dirt dust HVAC information interior part - (Sep 9, 2003)

Subject: Passenger Compartment Air Filter

Models:.

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Condition/Concern:
A customer may inquire about the availability of the passenger compartment air replacement filters.

Recommendation/Instructions:
For the 2003 model year the passenger compartment air filter is no longer available as a factory option. With the redesigned HVAC case, there is no longer a cavity for the filter. The GM parts catalog indicates there is replacement filter available; however there is no provision for it.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.

Models:
(03 Cadillac Escalade and EXT, ESV) and (03 Chevrolet Avalanche 2WD/4WD) and ( 03 Chevrolet Silverado 2WD/4WD) and (03 GMC Sierra 2WD/4WD) and (03 Chevrolet Tahoe 2WD/4WD) and (03 Chevrolet Suburban 2WD/4WD) and (03 GMC Yukon 2WD/4WD) and (03 GMC Yukon XL 2WD/4WD) and (03 Yukon Denali AWD, Yukon Denali XL AWD) and (03 H2 Hummer)

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

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