GMC 1995 Jimmy Owner's Manual page 226

To Remove the Rear-Mounted Spare Tire
Make sure the carrier arm
is
fully latched
to
the endgate. Remove the tire's
cover.
The locking wheel nut
can be removed by
snapping the rubber
weather cover off the
face of the lock
case.
Insert the key and pull
the lock case straight
off. It is not necessary
to turn the key.
The wheel wrench can then be used to remove the lug nut.
I
Use the
socket end of
your wheel wrench to
remove the wheel nuts
that secure the tire to
the carrier. Then, lift
the tire off its
mounting bracket.
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