GM Service Manual Online
For 1990-2009 cars only

To replace a headlamp bulb:

  1. Open the hood. See Hood Release for more information.
  2. Reach in from inside the engine compartment, turn the bulb socket counterclockwise and pull the socket straight out.

  3. Object Number: 1566467  Size: B4
  4. Turn the bulb socket counterclockwise to remove it from the headlamp assembly and pull it straight out.
  5. Unplug the electrical connector by pushing the release tab and pulling the bulb socket out.
  6. Replace with a new bulb socket.
  7. Reverse steps 1 through 4 to reinstall.