CRACKED PLASTIC HEAD LAMP SWITCH TRIM PLATE

Subject: CRACKED PLASTIC HEAD LAMP SWITCH TRIM PLATE

Model and Year: 1986-91 S/T TRUCKS

TO: ALL CHEVROLET DEALERS

Some 1986-1991 S/T trucks may experience a cracked plastic head lamp switch trim plate. This may result in the inaccessibility of the rheostat assembly (dimmer switch) and/or the switch assembly (head lamp/park lamp switch) (Figure 1).

Previously, it was necessary to replace the complete head lamp switch trim plate assembly. The complete assembly includes the rheostat assembly part number 01995293 (instrument panel dimmer switch), switch assembly part number 01995313 (head lamp/ parking lamp switch) and the switch trim plate (Figure 1), and the switch trim plate hole covers.

A new trim plate kit is now available which does not contain the rheostat assembly or the head lamp switch. This kit replaces the complete head lamp switch trim plate assembly when the switch trim plate is cracked and the rheostat assembly or the head lamp switches do not need replacing. This new kit includes; a switch trim plate, bracket for switch mounting, covers for the switch trim plate holes and four bolts/screws.

SERVICE PARTS INFORMATION

Part Number Application Description ---------- ----------- ---------------------------- 15636850 1988-1991 Plate kit I/P (no switches). (Gray) Switch trim plate (gray) bracket, covers for switch trim plate holes (quantity 2), and 4 bolts/screws.

15636853 1986-1987 Plate kit I/P (no switches). (Black) Switch trim plate (black), bracket, covers for switch trim plate holes (quantity 2), and 4 bolts/screws.

Important: Torque 11508898 bolts/screws supplied in kit to 0.4-0.7 N.m. (4-6 lbs. in.).

Parts are expected to be available on January 21, 1991. Until then normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP orders will be accepted. GMSPO will make every effort to obtain parts. All parts will be placed on 400 control to waive VIP surcharges. However, the parts will be shipped premium transportation at dealer's expense. All other order types will be canceled as incorrectly ordered while 400 control is in place.

WARRANTY INFORMATION

For vehicle repaired under warranty use:

Labor Operation: T7101

Labor Time: .3 h r.

Trouble Code: 92

NOTE: Labor Operation is coded to base vehicle coverage in the warranty system.

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.