Buick 2007 Rendezvous Owner's Manual page 449

CAUTION:
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The underbody-mounted spare tire needs
to be stored with the valve stem pointing
down. If the spare tire is stored with
the valve stem pointing upwards, its
secondary latch will not work properly and
the spare tire could loosen and suddenly
fall from your vehicle. If this happened
when your vehicle was being driven, the
tire might contact a person or another
vehicle, causing injury and, of course,
damage to itself as well. Be sure the
underbody-mounted spare tire is stored
with its valve stem pointing down.
1. Lay the compact spare tire on the ground at
the rear of the vehicle. Position the compact
spare tire so that the valve stem is pointed
down facing the rear of the vehicle.
2. Lower the cable to the ground. See Removing
the Spare Tire and Tools on page 429.
3. Tilt the retainer downward and slip it through
the center hole of the spare tire.
Make sure the retainer is fully seated across
the underside of the wheel.
4. Attach the folding wrench to the hoist shaft.
5. Turn the folding wrench clockwise to lift
the spare tire.
6. When the tire reaches the stabilizer bar, move
the tire over the bar, then continue to turn the
folding wrench clockwise to lift the spare tire.
7. When the tire is almost in the stored position,
turn the tire so that the valve stem is towards
the rear of the vehicle.
This will help when you check and maintain
tire pressure in the spare.
8. Raise the tire fully against the underside of the
vehicle. Continue turning the folding wrench
until you feel more than two clicks. This
indicates that the compact spare tire is secure
and the cable is tight. The spare tire hoist
cannot be overtightened.
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