For 1990-2009 cars

# HEADLAMPS MISALIGNED TO HOOD REMOVE 4MM EXCESS RIB MATERIAL

#### SUBJECT: HEADLAMPS MISALIGNED TO HOOD

#### MODELS AFFECTED: 1991 DE VILLES AND FLEETWOODS

Some 1991 DeVilles and Fleetwoods may exhibit a condition where the headlights appear misaligned to the forward edge of the vehicles hood. The condition is most prevalent on the driver side headlamp where the inboard edge of the lamp appears lower than the outboard edge of the lamp. This condition may be caused by an excess of material in the two ribs on the underside of the headlamp thumb screw holes. This condition was corrected in production at the VIN breakpoint 320743.

To repair this condition use the following procedure:

1. Remove the misaligned headlamp. Refer to Service Information Manual, Section 8B, Headlamp Assembly.

2. Place the headlamp assembly on a bench with the top side of the assembly facing down.

3. Identify the two ribs on the underside of the thumb screw hole of the high side of the lamp. Remove approximately 4mm (3/16") of material from each of the ribs. Refer to Figure 1.

4. Reinstall the headlamp housing on the car, and lower the hood to verify there is a consistent gap from the headlamp to the hood.

5. Aim the headlamp. Refer to Service Information Manual, Section 8B, Headlamp Aiming.

For warranty purposes use Labor Operation T6551 at .7 hour.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.