2004 GMC Envoy Owner's Manual - Page 360

Taillamps and Turn Signal Lamps 1. Open the liftgate. 2. Remove the two screws from the lamp assembly. 4. Unclip the wiring harness (A) and remove the three socket retaining screws (B). 3. Pull the assembly away from the vehicle. 5. Remove the socket by releasing the retaining tabs. 6. Holding the socket, pull the bulb to release it from the socket. 7. Push the new bulb into the socket until it clicks. 8. Reinstall the socket and screws. 9. Reconnect the wiring harness. 10. Reinstall the lamp assembly and tighten the screws. 11. Close the liftgate. 5-52