How do I change the AC filter on 2011 Ford F150?

To change the AC filter on a 2011 Ford F-150, first, locate the cabin air filter, which is usually behind the glove compartment. Open the glove compartment and remove any contents, then gently squeeze the sides to release it from the stops and let it drop down. Remove the cover and take out the old filter, replacing it with a new one in the same orientation, then reassemble the glove compartment.