GMC Yukon 2012 Owner's Manual page 430

10-74 Vehicle Care
To access the spare tire, refer to the
following graphics and instructions:
A. Hoist Assembly
B. Hoist Shaft
C. Hoist Shaft Access Cover/Hole
D. Jack Handle Extensions
E. Wheel Wrench
F. Hoist Cable
G. Tire/Wheel Retainer
H. Spare Tire (Valve Stem
Pointed Down)
I. Hoist Shaft Access Hole
J. Hoist End of Extension Tool
K. Spare Tire Lock
1. Open the hoist shaft access
door (C) on the bumper to
access the spare tire lock (K).
2. To remove the spare tire lock,
insert the ignition key, turn it
clockwise and then pull it
straight out.
3. Assemble the two jack handle
extensions (D) and wheel
wrench (E), as shown.
I n f o r ma t i o n P r o v i d e d b y :
4. Insert the open end of the
extension (J) through the hole in
the rear bumper (I) (hoist shaft
access hole).
Be sure the hoist end (J) of the
extension connects to the hoist
shaft. The ribbed square end of
the extension is used to lower
the spare tire.