GMC 2008 Envoy Denali Owner's Manual page 392

7. Make sure the tire is stored securely. Push, pull (A),
and then try to turn (B) the tire. If the tire moves,
use the wheel wrench and socket end of the
extension to tighten the cable.
8. Return the equipment to the proper location in the
vehicle as shown next.
5-98
A. Handle
B. Wheel Wrench
C. Instruction Label
D. Extension(s)
E. Knob
F. Wheel Blocks
and Jack