2001 GMC Yukon Owner's Manual - Page 345

Taillamps A. Turn Signal Lamp B. Back-up Lamp C. Stoplamp 2. Remove the lamp assembly. 3. Press the release tab and turn the bulb socket counterclockwise to remove it from the taillamp housing. 4. Pull the old bulb straight out from the socket. 1. Use a Phillips screwdriver to remove the two screws from the lamp assembly. 5. Press a new bulb into the socket, insert the socket into the taillamp housing and turn the socket clockwise into the taillamp housing until it clicks. 6. Reinstall the rear lamp assembly and tighten the screws. 6-42