GMC T-Series 2007 Owner's Manual page 117

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