GMC Jimmy 2004 Owner's Manual page 368

Follow this diagram for the rear-mounted spare.
A. Wheel Carrier
B. Spare or Flat Tire
5-88
C. Wheel Nut and
Locking Nut Cylinder
(If Equipped)
6. Reinstall the locking wheel nut using the wheel
wrench. Then push the lock case onto the lug
nut until it stops. The key does not have to
be inserted into the lock. Push the lock case to be
sure it is secured. The special lug nut and lock
case is not intended to be used on any road wheel,
only on the spare wheel carrier. Tighten the nuts
on the wheel carrier to 22 to 32 lb-ft (30 to 40 N·m).
CAUTION:
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Make sure the tire and carrier are secure.
Driving with the tire or carrier unlatched could
injure pedestrians or damage the vehicle.
7. Return the jack, wheel wrench and wheel blocks
to the proper location in your vehicle's rear area.
Secure the items and replace the jack cover.