The passenger compartment outside air is routed through a passenger compartment filter. The filter removes certain debris, including dirt and leaves. Reductions in the climate control system performance may indicate that the filter needs to be inspected and cleaned.

The passenger compartment air filter can be accessed from the outside of the vehicle on the front passenger side. It is concealed by the front access panel. Pull the latch inside the cab on the driver's side of the vehicle to open the front panel.

To inspect and clean the passenger compartment air filter, use the following steps:

1. 
   
   

   Pull the tab located at the bottom of the screen.

2. 
   
   

   Pull the tab and remove the filter.

3. Rinse both sides of the filter with clean water.
4. Reinstall the filter and screen after cleaning.