Chevrolet 2007 HH7 Owner's Manual page 176

3. Pull each of the three tabs of the filter access
door down and open the access door
downward.
176
4. Pull the filter out, keeping it face up so as not
to drop any dust into the passenger
compartment upon removal.
When installing a new air filter make sure the
AIR FLOW arrow is pointing downward. Reverse
Steps 1 through 4 making sure the glove box
door is back into place.