For 1990-2009 cars

# CLEANING AND LUBRICATING POWER ANTENNA

Periodic cleaning and lubrication may be necessary to assure proper radio and antenna operation. The following procedure is recommended:

A. To clean (before lubricating) mast sections:

1. Actuate antenna to full mast extension.

2. Dampen clean cloth with mineral spirits.

3. Wipe cloth over antenna mast sections removing any dirt.

4. Actuate antenna through one complete cycle (retract and extend).

5. Repeat steps 1 through 4 at least two more times.

B. To lubricate (after cleaning) mast sections:

1. Actuate antenna to full mast extension.

2. Dampen clean cloth with oil - GM 9981712 (i.e. light sewing machine oil).

3. Wipe cloth over antenna mast sections evenly distributing oil over mast sections surfaces.

4. Actuate antenna through one complete cycle (retract and extend).

5. Repeat steps 1 through 4 at least two more times.

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.