GMC 2004 Savana - Manual (Page 324)

Attach the wheel wrench
and ratchet, with the
DOWN side facing you.
The wheel wrench
has a socket end and a
flat chisel end.
Put the flat chisel end of the wheel wrench on an angle
through the hole between the body and the bumper.
Be sure the flat end connects into the hoist shaft.
Turn the ratchet counterclockwise to lower the spare tire
to the ground. If the spare tire does not lower to the
ground, the secondary latch is engaged causing the tire
not to lower. See “Secondary Latch System” later in
this section.
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