GMC 2007 Acadia Owner's Manual page 471

8. Disconnect the lug wrench from the jack and
carefully remove the jack. Use one hand to
push against the spare tire while firmly pulling
the jack out from under the spare tire with
the other hand.
9. Tilt the retainer and slip it through the wheel
opening when the spare tire has been
completely lowered.
10. Turn the lug wrench clockwise to raise the
cable back up if the cable is hanging.
Have the hoist assembly inspected as soon as
you can. You will not be able to store a spare tire
using the hoist assembly until it has been
repaired or replaced.
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