Pontiac Montana SV6 2008 Owner's Manual page 377

Store the wheel cover securely in the rear of the
vehicle until you have the flat tire repaired or replaced.
Once the wheel cover has been removed, use the
following procedure to remove the flat tire and install
the spare tire.
1. Do a safety check is done before proceeding.
See Changing a Flat Tire on page 5-73 for more
information.
Turn the handle counterclockwise about
180 degrees, then flip the handle back to the
starting position. This avoids taking the wrench off
the lug nut for each turn.
2. Loosen the wheel nuts
using the folding
wrench, but do not
remove them.
5-77