Pontiac Montana SV6 2007 Owner's Manual page 456

3. Pull out the taillamp housing.
4. Disconnect the wiring harness connector from
the taillamp assembly.
A. Stoplamp/Taillamp
B. Turn Signal Lamp
C. Back-up Lamp Bulb
456
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.