MOISTURE IN EXTERIORLAMPS DRILL BREATHER HOLES

Some exterior lamp assemblies may condense water droplets inside the housing under humid ambient conditions. The temporary appearance of water droplets inside the housing may be objectionable to some owners. To expedite evaporation of residual moisture caused by condensation, a 3/16" breather hole can be drilled in the housing. All breather holes should be drilled in the recommended locations as listed and illustrated below.

For warranty purposes, use the following: Labor Time Operation Labor Operation C E K --------- --------------- - - - R&R and Drill Park/Turn Lamp T6047 .2 .2 .2

R&R and Drill Brake/Tail Lamp T6048 .3 .3 .2

R&R and Drill Cornering/Sidemarker Lamp T6049 .2 .2 .2

C-Car Lamps - 1977 Through 1981

Lamp Name Location of Breather Hole --------- -------------------------- Park/Turn (Figure 1) Lowermost part of either inner shell.

Brake/Tail (Figures 2 and 3) Lowermost part of inner shell.

Cornering/Sidemarker (Figure 4) (Lamps are enclosed separately)

1. Side marker lamp: 1/2" from bottom rearward corner on underside of lamp.

2. Cornering lamp: On underside, just rearward of side marker lamp.

E-Car Lamps (Eldorado) - 1979 Through 1981

Lamp Name Location of Breather Hole --------- ------------------------- Park/Turn (Figure 5) Lowermost part of either inner shell. Brake/Tail (Figure 5) Lowermost part of inner shell. Cornering/Sidemarker (Figure 6) Lower rearward corner of lamp.

K-Car Lamps (Seville) - 1980 and 1981

Lamp Name Location of Breather Hole --------- ------------------------- Park/Turn (Figure 7) Bottom of either inner shell.

Brake/Tail (Figure 7) Lowermost rearward point of the shell nearest center line of the vehicle.

Corner/Sidemarker (Figure 8) Within 1/8" of lower most rearward corner of lamp.

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.