GM Service Manual Online
For 1990-2009 cars only

LICENSE PLATE LAMP WATER LEAK/ CONDENSATION (DRILL VENT HOLE)

SUBJECT: LICENSE PLATE LAMP WATER INTRUSION/CONDENSATION (DRILL VENT HOLE IN LAMP HOUSING)

VEHICLES AFFECTED: 1993 "L" MODELS (4-DOOR EXPORT ONLY)

CONDITION:

--------- Some owners of 1993 "L" vehicles (4-door export only) may experience a condition where condensation may collect in the rear license plate lamp housings.

CAUSE:

----- Inadequate ventilation not allowing moisture to escape.

CORRECTION:

---------- Drill vent hole in lamp housing.

1. Remove the two screws and lens on right and left lamp housings.

2. Disconnect electrical connectors.

3. Remove right and left housings from license plate pocket.

4. Drill one 2mm (3/32") hole in each housing as shown in the illustration.

5. Seal exposed metal with appropriate paint making certain vent hole is not covered.

6. Reconnect electrical connectors.

7. Re-install right and left housings.

8. Re-install lens and screws.

WARRANTY INFORMATION:

For vehicles repaired under warranty use:

Labour Operation: N-1477 Labour Time: 0.2 hours


Object Number: 89484  Size: FS

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.