GMC 2013 Sierra Owner's Manual page 443

A. Wing Nut Retaining Tool Kit
B. Tool Kit
C. Wheel Blocks
D. Jack
E. Jack Knob
For regular cab models, the
equipment you will need is behind
the passenger seat. For extended
and crew cab models, the
equipment is on the shelf behind the
passenger side second row seat.
1. Turn the knob on the jack
counterclockwise to lower the
jack head to release the jack
from its holder.
2. Turn the wing nut
counterclockwise to remove the
wheel blocks and the wheel
block retainer.
3. Turn the wing nut used to retain
the storage bag and tools
counterclockwise to remove it.
Use the jack handle extensions and
the wheel wrench to remove the
underbody-mounted spare tire.
A. Spare Tire (Valve Stem
Pointed Down)
B. Hoist Assembly
C. Hoist Cable
D. Tire/Wheel Retainer
E. Hoist Shaft
F. Hoist End of Extension Tool
G. Hoist Shaft Access Hole
H. Wheel Wrench
I. Jack Handle Extensions
J. Spare Tire Lock (If equipped)
1. Open the spare tire lock cover
on the bumper and use the
ignition key to remove the spare
tire lock (J). To remove the spare
tire lock, insert the ignition key
turn and pull straight out.