GM Service Manual Online
For 1990-2009 cars only

The front fog lamps must be aimed for proper illumination of the road. The front fog lamp aim should be checked when a new fog lamp assembly is installed, or if service or repairs in the front end area may have disturbed the fog lamp mounting.

There is no horizontal adjustment for aiming the front fog lamp assemblies on this vehicle.

  1. To ensure accurate vertical front fog lamp aiming, first perform the following steps to prepare the vehicle.
  2. • Ensure that all the components are in place on the vehicle, if other service has been performed on the vehicle.
    • Ensure that the fuel level is ½ full or less.
    • Place the vehicle on a level surface 1.52 m (5 ft) away from a target screen.
    • Stop all other operations of work on the vehicle.
    • "Jounce" the vehicle to settle the suspension.
    • Cover the headlamps while aiming the fog lamps.

    Object Number: 64604  Size: SH
  3. Turn the front fog lamps ON.
  4. Insert a TORX® driver through the access hole in the underside of the front bumper fascia to access the fog lamp vertical adjustment screw.
  5. Adjust the fog lamp up or down until the top edge of the high intensity zone on the screen is 102 mm (4 in) below the horizontal centerline (2), within the range of 0 mm (0 in) (3) to ground limits (5), below the horizontal centerline, on the target screen.
  6. Turn OFF the front fog lamps.