Buick 2005 Rendezvous - Manual (Page 399)

If the spare tire will not lower, the secondary latch may
be engaged causing the tire not to lower.
Do the following to check the cable:
1. Check under the vehicle to see if the cable is
visible.
2. If it is not visible, see Secondary Latch System on
page 5-84.
If it is visible, first try to tighten the cable by turning
the folding wrench clockwise until you hear two
clicks or feel it skip twice. You cannot over-tighten
the cable.
3. Loosen the cable by turning the wrench
counterclockwise three or four turns.
4. If the spare tire has not lowered, tighten the cable
all the way and then loosen it at least two times.
If the spare tire did lower to the ground, continue
with Step 5 under “Removing the Spare Tire
(Vehicles with the Rear Convenience Center)” listed
previously.
5. If you still cannot lower the spare tire to the ground,
see Secondary Latch System on page 5-84.
5-79