Customer Satisfaction 00012 - Trunk Release Incorrect Operation

General Motors has decided that certain 2000 Chevrolet Impala police vehicles equipped with RPO A98 may exhibit a condition in which the trunk release does not function correctly. The instrument panel switch should only activate the trunk release with the transaxle in PARK (P) and the key in the ignition and in the ON/RUN position. On involved vehicles, the instrument panel switch will activate the trunk release with the transaxle in PARK (P) without the key in the ignition, or with the key in the ignition at any position.

To prevent the possibility of this condition occurring, dealers are to replace the body control module (BCM) and program the new BCM. Special arrangements have been made to complete the campaign at certain locations with large groups of vehicles.

Involved are the following 2000 Chevrolet Impala model vehicles equipped with police equipment, RPO A98:

Important: Dealers should confirm vehicle eligibility through VISS (Vehicle Information Service System) or GM Access Screen (Canada only) or DCS Screen 445 (IPC only) prior to beginning campaign repairs.

Involved vehicles have been identified by Vehicle Identification Number. Computer listings containing the complete Vehicle Identification Number, customer name and address data have been prepared, and are being furnished to involved dealers with the campaign bulletin. The customer name and address data furnished will enable dealers to follow-up with customers involved in this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.

These dealer listings may contain customer names and addresses obtained from Motor Vehicle Registration Records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states/provinces/countries. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign.

THE NEW, CORRECTED BCM P/N 10438145 IS THE SAME P/N AS THE BCM WITHOUT THE CORRECTION. THE CORRECTED BCM MODEL NUMBER IS GMAB139, AND IS LOCATED ON THE BCM LABEL, JUST BELOW THE BARCODE. P/N 10438145 BCMS WITH PREVIOUS MODEL NUMBERS CANNOT BE USED IN IMPALA POLICE VEHICLES WITH RPO A98, BUT MAY BE USED IN OTHER 2000 MODEL IMPALA VEHICLES.

Important: An initial supply of parts required to complete this campaign will be pre-shipped to involved dealers of record. This pre-shipment will occur the week of March 1, 2000. Pre-shipped parts will be charged to dealer's open parts account.

Additional parts, if required, are to be obtained from General Motors Service Parts Operations (GMSPO). Please refer to your "involved vehicles listing" before ordering parts. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation, parts should be ordered on a CSO = Customer Special Order.

Important: Due to the small number of vehicles involved and due to limited initial parts availability, dealers are encouraged not to order campaign parts for use as shelf stock. Parts should only be ordered when inspection determines that it is necessary to replace the BCM.

Important: The new, corrected BCM P/N 10438145 is the same P/N as the BCM without the correction. The corrected BCM model number is GMAB139, and is located on the BCM label, just below the barcode. P/N 10438145 BCMs with previous model numbers cannot be used in Impala police vehicles with RPO A98, but may be used in other 2000 model Impala vehicles.

1. Disconnect the negative battery cable.
2. Remove the left sound insulator panel. Disconnect the electrical connector.
3. Disconnect the BCM electrical connectors.
4. Remove the BCM from the cross-vehicle beam.
5. Install the new BCM to the cross-vehicle beam.
6. Connect the BCM electrical connectors.
7. Install the left sound insulator panel. Connect the electrical connector.
8. Connect the negative battery cable.
9. Install a Tech 2 to the vehicle.
10. Input the required data for BCM reprogramming.
11. Download and upload the Tech 2 information to and from the Tech Line Terminal.
12. Perform the theft re-learn.
13. Check and clear any diagnostic trouble codes (DTCs).
14. Remove the Tech 2 from the vehicle.
15. Verify the correct operation of the remote keyless entry actuator.
16. Install the GM Campaign Identification Label.

For US and IPC

Place a Campaign Identification Label on each vehicle corrected in accordance with the instructions outlined in this Product Campaign Bulletin. Each label provides a space to include the campaign number and the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a ball point pen.

Put the Campaign Identification Label on a clean and dry surface of the radiator core support in an area that will be visible to people servicing the vehicle. When installing the Campaign Identification Label, be sure to pull the tab to allow the adhesion of the clear protective covering. Additional Campaign Identification Labels for US dealers can be obtained from Dealer Support Materials by calling 1-888-414-6322 (Monday-Friday, 8:00 am to 5:00 pm EST). Ask for Item Number S-1015 when ordering.

Additional Campaign Identification Labels for IPC dealers can be obtained from your Regional Marketing Office.

For Canada

Place a Campaign Identification Label on each vehicle corrected in accordance with the instructions outlined in this Product Campaign Bulletin. Each label provides a space to include the campaign number and the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a ball point pen.

Put the Campaign Identification Label on a clean and dry surface of the radiator core support in an area that will be visible to people servicing the vehicle. Additional Campaign Identification Labels for Canadian dealers can be obtained from DGN by calling 1-800-668-5539 (Monday-Friday, 8:00 am to 5:00 pm EST). Ask for Item Number GMP91 when ordering.

Submit a Product Campaign Claim with the information indicated below.

Refer to the General Motors WINS Claims Processing Manual for details on Product Campaign Claim Submission.

For US and Canada

Customers will be notified of this campaign on their vehicles by General Motors (see copy of customer letter included with this bulletin).

For IPC

Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached suggested dealer letter.

All unsold new vehicles in dealers' possession and subject to this campaign MUST be held and inspected/repaired per the service procedure of this campaign bulletin BEFORE customers take possession of these vehicles.

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

Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the dealer listing, are to be contacted by the dealer. Arrangements are to be made to make the required correction according to the instructions contained in this bulletin. This could be done by mailing to such customers a copy of the customer letter accompanying this bulletin. Campaign follow-up cards should not be used for this purpose, since the customer may not as yet have received the notification letter.

In summary, whenever a vehicle subject to this campaign enters your vehicle inventory, or is in your dealership for service in the future, please take the steps necessary to be sure the campaign correction has been made before selling or releasing the vehicle.

Dear General Motors Customer:

We want your experience owning your Impala to be better than any other you have had...which is why we are writing.

We have learned that certain 2000 Chevrolet Impala police vehicles may exhibit a condition in which the trunk release does not function correctly. The instrument panel switch should only activate the trunk release with the transaxle in PARK (P) and the key in the ignition and in the ON/RUN position. On involved vehicles, the instrument panel switch will activate the trunk release with the transaxle in PARK (P) without the key in the ignition, or with the key in the ignition at any position.

We have expedited Body Control Modules into General Motors Service Parts Operations and will pre-ship them to your dealer.

We recommend that you contact your dealer to arrange a service date.

If you have any questions or need any assistance, just contact your Chevrolet dealer or the Chevrolet Customer Assistance Center at 1-800-222-1020. Deaf, hearing impaired or speech impaired, please call 1-800-833-2438 (Utilizes Telecommunication Devices for the Deaf/Text Telephones TDD/TYY).

We sincerely regret any inconvenience this causes you. Also, we want you to know that we will continue to do everything we can to ensure that you are completely satisfied with your Impala and with Chevrolet.

Chevrolet Motor Division

General Motors Corporation