2005 GMC Envoy Owner's Manual - Page 411

Follow this diagram to store the underbody-mounted spare. A. B. C. D. E. Wheel Wrench Hoist Shaft Extension(s) Retainer Spare or Flat Tire (Valve Stem Pointed Up) 1. Put the tire on the ground at the rear of the vehicle, with the valve stem pointed up and to the rear. 2. Pull the retainer (D) through the wheel. 3. Put the socket end of the extension (C), on an 45 degree angle downward, through the hole in the rear bumper and into the hoist shaft (B). 4. Raise the tire fully against the underside of the vehicle. Continue turning the wheel wrench (A) clockwise until you hear two clicks or feel it skip twice. This indicates that the tire is secure and the cable is tight. The spare tire hoist cannot be overtightened. 5. Make sure the tire is stored securely. Push, pull (A), and then try to turn (B) the tire. If the tire moves, use the wheel wrench and socket end of the extension to tighten the cable. 5-79