Pontiac Montana SV6 2007 Owner's Manual page 454

To replace one of these bulbs, do the following:
1. Open the hood. See Hood Release on
page 419 for more information.
2. Remove the headlamp retainer pin (A) by
turning it towards the headlamp assembly
and pulling it straight out.
454
3. Remove the screw (B) from the top of the
headlamp assembly.
4. Pull the assembly away from the vehicle.
5. Disconnect the socket wiring harness
connector from the headlamp assembly.
6. Turn the bulb socket counterclockwise to
remove from the assembly.
7. To replace a headlamp bulb, disconnect the
bulb socket wiring harness and connect to the
new bulb socket.
To replace a sidemarker bulb, pull the old bulb
out and push a new bulb in.
8. Reinstall the bulb socket by inserting into the
bulb assembly and turning it clockwise to
secure.
9. Reverse the steps to reinstall the headlamp
assembly.