GMC 2001 Sonoma Owner's Manual page 259

Storing a Flat or Spare Tire and Tools
CAUTION:
Storing a jack, a tire or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision, loose
equipment could strike someone. Store all these
in the proper place.
NOTICE:
An aluminum wheel with a flat tire should always
be stored under the vehicle with the hoist.
However, storing it that way for an extended
period could damage the wheel. To avoid this,
have the wheel repaired as soon as possible.
5-26
Follow this diagram to store the underbody
A. Wheel Wrench
B. Hoist Assembly
C. Retainer
D. Spring
E. Tire
-
mounted spare.
F. Valve Stem
(Pointed Down)
G. Lower
H. Raise