2005 Buick Rendezvous Owner's Manual - Page 404

9. Tighten the wheel nuts firmly in a crisscross sequence, as shown. Secondary Latch System Your vehicle has an underbody mounted tire hoist assembly equipped with a secondary latch system. It is designed to stop the compact spare tire from suddenly falling off your vehicle if the cable holding the spare tire is damaged. For the secondary latch to work, the tire must be stowed with the valve stem pointing down. See Storing a Flat or Spare Tire and Tools on page 5-88 for instructions on storing the spare tire correctly. Notice: Wheel covers will not fit on your compact spare. If you try to put a wheel cover on the compact spare, you could damage the cover or the spare. 10. Do not try to put a wheel cover on the compact spare tire. It will not fit. Store the wheel cover securely in the rear of the vehicle until you have the flat tire repaired or replaced. {CAUTION: Before beginning this procedure read all the instructions. Failure to read and follow the instructions could damage the hoist assembly and you and others could get hurt. Read and follow the instructions listed below. 5-84