1998 GMC Envoy Owner's Manual - Page 234

Before you can lower the spare tire, must remove you of the the access hole cover on the passenger's side rear bumper. Insert your index finger into the indentation near the lamp and pull to remove cover. the To remove the spare, insert the chisel endthe wheel of wrench, on an angle, into the hole in the bumper. Be rear sure the chisel end the wheel wrench connects into of the hoist shaft. 5-23