GMC 2008 Acadia - Manual (Page 388)

The tools you will be using include the jack (A) and lug
wrench (B).
Removing the Spare Tire
The compact spare tire is located under the vehicle, in
front of the rear bumper. See Compact Spare Tire on
page 5-88 for more information about the compact spare.
A. Rear Convenience
Center
B. Lug wrench
C. Storage
Compartment
Cap Hole
D. Hoist Shaft
E. Compact
Spare Tire
F. Retainer
G. Hoist Shaft
Assembly
1. Open the storage compartment door of the
convenience center that is nearest the liftgate.
2. Move the carpet cutout that is located through the
hole of the storage compartment.
3. Attach the lug wrench into the hoist shaft.
5-74