GM Service Manual Online
For 1990-2009 cars only

To change a fog lamp bulb, do the following:

  1. Reach under the front bumper to the rear of the fog lamp to locate the bulb socket.

  2. Object Number: 1225898  Size: B4
  3. Rotate the bulb socket counterclockwise to remove it.
  4. Remove the bulb and replace it with the appropriate bulb.
  5. Reinstall the bulb socket by turning it clockwise.