Customer Satisfaction 00046 - Underhood Bussed Electrical Center Water Intrusion

Some 1998 Chevrolet S/T utility trucks shipped to Japan may have a short circuit caused by water intrusion between the bus bars and the terminals of the horn relay where the horn relay mounts in the underhood bussed electrical center. As long as the water maintains the short, the horn will blow. When the water evaporates, the short ceases.

Dealers are to install a new designed UBEC cover.

Involved are certain 1998 Chevrolet S/T utility trucks shipped to Japan and built within these VIN breakpoints:

Important: Dealers should confirm vehicle eligibility through DSC Screen 445 prior to beginning campaign 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 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.

Parts required to complete this campaign 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.

1. Raise the hood.
2. Remove the underhood bussed electrical center (UBEC) cover.
3. Install the new UBEC cover.
4. Install the GM Campaign Identification Label.

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 IPC dealers can be obtained from your Regional Marketing Office.

Submit a Product Campaign Claim with the information indicated below.

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

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, you must take the steps necessary to be sure the campaign correction has been made before selling or releasing the vehicle.

Suggested Dealer Letter

This notice is sent to inform you of a recall campaign that includes your vehicle.

Some 1998 Chevrolet Blazers may have a short circuit caused by water intrusion between the bus bars and the terminals of the horn relay where the horn relay mounts in the underhood bussed electrical center. As long as the water maintains the short, the horn will blow. When the water evaporates, the short ceases.

We will install a new designed underhood bussed electrical center cover. This service will be performed for you at no charge.

Please contact us as soon as possible to arrange a service date.

We sincerely regret any inconvenience this causes you; however, we have taken this action in the interest of your continued satisfaction with our products.

GMODC

General Motors Corporation