GMC Yukon Denalid Owner's Manual page 509

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 Retainer
H. Spare Tire (Valve
Stem Pointed Down)
I. Hoist Shaft
Access Hole
1. To reach the hoist shaft access cover (C),
you will first need to remove the hitch cover.
Remove it by turning the two fasteners located
at the bottom of the cover counterclockwise
and then pull the cover down and rotate
towards you.
2. Remove the hoist shaft access cover (C) on
the bumper to access the spare tire lock (K).
J. Hoist End of
Extension Tool
K. Spare Tire Lock
509