1999 GMC Envoy Owner's Manual - Page 246

yellowblue Storing a Flat or Spare Tire and Tools Follow this diagram to store the underbody-mounted spare. A. Retainer B. Valve Stem (Pointed Down) C. Spare or Flat Tire D. Spring E. Wheel Wrench F. Lower G. Raise H. Hoist Arm 1. Put the tire on the ground at the rear of the vehicle, with the valve stem pointed down and to the rear. 2. Pull the retainer through the wheel. 3. Put the chisel end of the wheel wrench, on an angle, through the hole in the rear bumper and into the hoist shaft. Turn the wheel wrench clockwise until the tire is raised against the underside of the vehicle. You will hear two "clicks" when the tire is secure, but pull on the tire to make sure. CAUTION: Storing a jack, a tire or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store all these in the proper place. NOTICE: An aluminum wheel with a flat tire should always be stored under the vehicle with the hoist. However, storing it that way for an extended period could damage the wheel. To avoid this, have the wheel repaired as soon as possible. 5-28