CAMPAIGN: BATTERY O/CHARGING REWIRE GEN.VOLT. SENSE POINT

MODELS: 1986 Chevrolet Caprice and Caprice Classic Models Equipped with Police(SEO 9C1) or Taxi (SEO 9C6) Special Equipment Option

ALL AFFECTED DEALERS:

General Motors of Canada has determined some 1986 Chevrolet Caprice and Caprice Classic Models equipped with police (SEO 9C1) or taxi (SEO 9C6) special equipment option may experience a battery overcharging condition which can lead to battery damage.

To prevent the possibility of this condition occurring, the generator voltage sense point will be rewired on all involved vehicles.

VEHICLES INVOLVED:

Involved are certain 1986 Chevrolet Caprice and Caprice Classic Models equipped with police (SEO 9C1) or taxi (SEO 9C6) special equipment option and built within the following Vehicle Identification Number parameters:

PLANT FROM THROUGH ----- ---- ------ Detroit G9138758 G9153962 Fairfax GX100015 GX197685

All affected vehicles have been identified by the VIN listing provided to involved Dealers with this bulletin. Any Dealer not receiving a listing was not shipped any of the affected vehicles.

DEALER CAMPAIGN RESPONSIBILITY:

Dealers are to service all vehicies subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this time forward.

Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your Dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.

Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the Dealer, and arrangements made to make the required modification according to instructions contained in this bulletin.

CAMPAIGN PROCEDURE:

Refer to Section 4 of the Service Policies and Procedures Manual for the detailed procedure on handling Product Campaigns. Dealers are requested to complete the campaign on all transfers as soon as possible.

OWNER NOTIFICATION:

All owners of record at the time of campaign release are shown on the attached computer listing and have been notified by first class mail from General Motors. The listings provided are for campaign activity only and should not be used for any other purpose.

PARTS INFORMATION:

Parts required for this modification should be ordered through regular channels as follows:

PART QUANTITY NUMBER PER VEHICLE DESCRIPTION ------ ------------- -----------

2977489 (or equivalent) 1 Ring Terminal - Straight for #10-#12 Gauge Cable, for #12 Screw (Approx. .284" Dia.), Material .040" Brass.

* P/N 2977489 CONTAINS TEN (10) RING TERMINALS. ONE (1) RING TERMINAL IS REQUIRED FOR EACH INVOLVED VEHICLE. ORDER PARTS ACCORDINGLY.

PARTS AND LABOUR CLAIM INFORMATION:

Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card or RAPID terminal transmission in accordance with the following:

Repair Code Operation Time Allowance ----------- --------- --------------- 2A Rewire Generator Voltage .4 Sense Point

Time allowance includes 0.1 hour for Dealer administrative detail associated with this campaign. Parts credit will be based on Dealer net plus 30% to cover parts handling.

SERVICE PROCEDURE:

1. Disconnect negative battery cable.

2. Cut red wire five (5) inches back from two-way connector at generator (see Figure 2, #1). Add ring terminal, P/N 2977489, to wire and solder.

3. Tape other end of wire and place in conduit (see figure 2, #3).

4. Remove cover from generator terminal (see Figure 3, #1).

5. Remove nut from generator stud (see Figure 3, #2). Connect ring terminal from red wire to stud, reinstall nut and torque to 6.0 N.m (4.5 lb. ft.). Replace cover.

6. Reconnect negative battery cable.

7. Install Campaign Identification Label.

INSTALLATION OF CAMPAIGN IDENTIFICATION LABEL

Clean surface of radiator upper mounting panel and apply a Campaign Identification Label. Make sure the correct campaign number is inserted on the label. This will indicate that the campaign has been completed.

Dear General Motors Customer:

General Motors of Canada has determined that some 1986 Chevrolet Caprice and Caprice Classic Models equipped with police (SEO 9C1) or Taxi (SEO 9C6) special equipment option may experience a bettery overcharging condition.

To prevent the possibility of this condition occurring, the generator voltage sense point will be rewired. This service will be performed for you at no charge.

Instructions for this service have been sent to your Dealer. Please contact your Dealer to arrange a service date. The time necessary to make this modification is approximately ten (10) minutes. Please ask your Dealer how much additional time will be necessary to process your vehicle.

This letter identified your vehicle. Presentation of this letter to your Dealer will assist their Service personnel in completing the necessary correction to your vehicle in the shortest possible time.

Further assistance, if required, may be obtained from the General Motors Zone Office nearest you. Your vehicle Owner's Manual provides the location and phone number of each respective Zone Office.

We are sorry to cause you this inconvenience; however, we have taken the action in the interest of your continued satisfaction with our products.

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.