2007 Buick Terraza Owner's Manual - Page 446

3. Pull out the taillamp housing. 4. Disconnect the wiring harness connector from the taillamp assembly. 5. Turn the bulb socket counterclockwise to remove. 6. Replace the bulb by pulling the old bulb out of the socket and gently pushing in a new bulb. 7. Replace the bulb socket by inserting and turning clockwise to secure. 8. Reinstall the taillamp assembly by inserting the outboard locating/retaining pins until the lamp is seated. 9. Secure with the inboard screws. A. Stoplamp/Taillamp B. Turn Signal Lamp C. Back-up Lamp Bulb 446