Chevrolet 2006 TrailBlazer EXT Owner's Manual page 451

8. Continue raising the jack until the spare tire
stops moving upward and is held firmly in place.
The secondary latch has released and the spare tire
is balancing on the jack.
9. Lower the jack by turning the wheel wrench
counterclockwise. Keep lowering the jack until the
spare tire slides off the jack or is hanging by
the cable.
10. Disconnect the jack handle from the jack and
carefully remove the jack. Use one hand to push
against the spare while firmly pulling the jack out
from under the spare tire with the other hand.
11. If the spare tire is
hanging from the cable,
insert the socket end of
the extension
connected to the wheel
wrench into the hoist
shaft hole just above
the rear bumper on a
45 degree angle
downward.
12. Turn the wheel wrench counterclockwise to lower
the spare the rest of the way.
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