GMC Yukon Denalid Owner's Manual page 525

To store the tools, do the following.
A. Wheel Blocks
B. Tool Bag with Jack
Tools
C. Retaining Bracket
D. Wing Nut Retaining
Tool Bag
1. Return the tools (wheel wrench, jack handle,
and jack handle extensions) to the tool bag (B).
2. Assemble wheel blocks (A) and jack (E)
together with the wing nut (F).
E. Jack
F. Wing Nut Retaining
Wheel Blocks
G. Wing Nut on Jack
3. Position the jack (E) and wheel blocks (A) in the
driver's side trim panel over the wheelhouse.
4. Turn the wing nut (G) clockwise until the jack
is secured tight in the mounting bracket. Be
sure to position the holes in the base of
the jack onto the pin in the mounting bracket.
5. Use the retaining bracket (C) to fasten the tool
bag (B) on the stud and turn the wing nut (D)
clockwise to secure.
Regular Wheelbase shown,
Extended Wheelbase similar.
6. Return the storage tray to its original stored
position.
525