Pontiac Torrent 2009 Owner's Manual page 334

2. Remove the taillamp screw covers.
3. Remove the taillamp screws.
4. Pull the taillamp assembly towards you.
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5. Turn the bulb socket counterclockwise to remove
the bulb socket from the taillamp assembly.
6. Pull the bulb out of the bulb socket.
7. Push the new bulb straight into the bulb socket until
it clicks.
8. Insert the bulb socket into the taillamp assembly
and turn it clockwise to secure.
9. Push the taillamp assembly straight into place on
the vehicle.
10. Reinstall the taillamp screws. Do not overtighten.
11. Reinstall the taillamp screw covers.