1997 Buick Regal Owner's Manual - Page 311

TaiVStop/Turn Signal Lamp 1. Remove the three plastic wing nuts (A). (Pliers may be required to remove the wing nuts.) 3. Squeeze the tab on the socket and turn the socket right to left. 4. Pull out the socket. 5. Pull the bulb out of the socket. (There aretwo bulbs on each taillamp.) A 6. Push in a new bulb. 7. Replace the socket into the housing and turn to the right. 8. Replace the taillamp housing to the body of the vehicle. B 9. Install the wing nuts. 10. Tighten the plastic nuts. 2. Pull the taillamp housing away from the body of the vehicle (B).