2009 Cadillac STS-V Owner's Manual - Page 208

Passenger Compartment Air Filter Your vehicle may be equipped with a passenger compartment air filter. There are two types of filters available. There is a standard dust filter that traps small particles including pollen. There is, also, a dust/odor filter available that traps dust and pollen and uses a charcoal element to help reduce many offensive odors from entering your vehicle. The filter will need to be changed periodically. For information on when to change the passenger compartment air filter, see Scheduled Maintenance on page 6-4. Notice: Driving without a passenger compartment air filter in place can cause water and small particles, like paper and leaves, to be pulled into your climate control system which may cause damage to it. Make sure you always replace the old filter with a new one. The access panel for the passenger compartment air filter is located under the hood near the windshield, on the passenger side of the vehicle. See Engine Compartment Overview on page 5-12 for more information on location. See Doing Your Own Service Work on page 5-4 for information on doing your own service work. To access the passenger compartment air filter: 1. Pull back the rubber hood seal from the edge of the leaf screen vent cover. 2. Remove the three fasteners that hold the filter cover in place and slide the cover off. 3. To access the filter, remove the water deflector by lifting the outboard edge of the deflector to release the retention tab. 3-54