Customer Satisfaction Program - OnStar Module Incorrect Calibration

General Motors has decided that certain 2003 model year Chevrolet TrailBlazer and TrailBlazer EXT, GMC Envoy and Envoy XL; and Oldsmobile Bravada vehicles may have been built with an incorrect calibration in the OnStar® module. An OnStar® module with an incorrect calibration will allow connection to the OnStar® Call Center but will not allow the customer to set up an account or utilize certain OnStar® services, such as air bag deployment notification, stolen vehicle tracking, and more.

Dealers are to reprogram the OnStar® module.

Involved are certain 2003 model year Chevrolet TrailBlazer and TrailBlazer EXT; GMC Envoy and Envoy XL; and Oldsmobile Bravada vehicles equipped with OnStar® (RPO UE1) and built within these VIN breakpoints:

Important: Dealers should confirm vehicle eligibility through GMVIS (GM Vehicle Inquiry System) or GM Access Screen (Canada only) prior to beginning program repairs. [Not all vehicles within the above breakpoints may be involved.]

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 program bulletin. The customer name and address data furnished will enable dealers to follow up with customers involved in this program. Any dealer not receiving a computer listing with the program 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 program.

No parts are required for this customer satisfaction program.

Important: The calibrations required for the reprogramming are available in TIS version 3.5, which was broadcast via GM Access on March 29, 2003.

1. Reprogram the OnStar® Vehicle Communication Interface Module. Refer to Service Programming System (SPS) Remote Procedure in the Programming sub-section of Service Information. Configure the vehicle using the procedures outlined in Service Information.
2. Install the GM Identification Label.

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

Put the Recall 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 Recall Identification Label, be sure to pull the tab to allow the adhesion of the clear protective covering. Additional Recall Identification Labels for US dealers can be obtained from Dealer Support Materials by either ordering on the web from DWD Store, gm-dealerworld.com, or calling 1-866-700-0001 (Monday-Friday, 8:00 am to 5:00 pm EST). Ask for Item Number S-1015 when ordering.

Place a Recall Identification Label on each vehicle corrected in accordance with the instructions outlined in this Product Recall Bulletin. Each label provides a space to include the recall number and the five (5) digit dealer code of the dealer performing the recall service. This information may be inserted with a typewriter or a ball point pen. Put the Recall 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 Recall Identification Labels for Canadian dealers can be obtained from DGN by calling 1-800-668-5539 (Monday-Friday, 8:00 a.m. to 5:00 p.m. EST). Ask for Item Number GMP 91 when ordering.

The General Motors Courtesy Transportation program is intended to minimize customer inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited Warranty. The availability of courtesy transportation to customers whose vehicles are within the warranty coverage period and involved in a product recall is very important in maintaining customer satisfaction. Dealers are to ensure that these customers understand that shuttle service or some other form of courtesy transportation is available and will be provided at no charge. Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy Transportation guidelines.

Submit a Product Program Claim with the information indicated below.

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

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

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

Dealers are to service all vehicles subject to this program 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. Program 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 program enters your vehicle inventory, or is in your dealership for service in the future, you must take the steps necessary to be sure the program correction has been made before selling or releasing the vehicle.

Dear General Motors Customer:

This notice is sent to inform you that General Motors is conducting a voluntary customer satisfaction program that affects certain 2003 model year Chevrolet TrailBlazer and TrailBlazer EXT; GMC Envoy and Envoy XL; and Oldsmobile Bravada vehicles equipped with the OnStar® system.

We have learned that the OnStar® module in your vehicle may have been built with an incorrect calibration. An OnStar® module with an incorrect calibration will allow you to connect with the OnStar® Call Center but will not allow you to set up your account or utilize certain OnStar® services, such as air bag deployment notification, stolen vehicle tracking, and more.

To eliminate this condition, your GM dealer will reprogram the OnStar® module. This service will be performed for you at no charge.

We recommend that you contact your GM dealer to arrange a service date. Presenting the attached card to your dealer will assist in making the necessary correction in the shortest possible time. If you no longer own this vehicle, please check the appropriate box and provide new owner information, if available.

If you have any questions or need any assistance, just contact your dealer or the appropriate Customer Assistance Center at the number listed below:

If your vehicle is within the New Vehicle Limited Warranty your dealer may provide you with shuttle service or some other form of courtesy transportation while your vehicle is at the dealership for this repair. Please refer to your Owner's Manual and your dealer for details on Courtesy Transportation.

We sincerely regret any inconvenience or concern that this situation may cause you. We want you to know that we will do our best, throughout your ownership experience, to ensure that your GM vehicle provides you many miles of enjoyable driving.

General Motors Corporation

Enclosure