CAMPAIGN: INOPERATIVE PARKING BRAKE

Model and Year: 1989-90 CHEVROLET CORVETTE

This bulletin revises the VEHICLES INVOLVED and OWNER NOTIFICATION sections of Chevrolet Product Campaign Bulletin 90C09, dated January, 1990. Specifically, certain 1989 Chevrolet Corvettes have been added to this campaign.

VEHICLES INVOLVED

Involved are certain 1989-90 Chevrolet Corvette model vehicles built within the following VIN breakpoints:

MODEL/YEAR PLANT FROM THROUGH OPTION ---------- ----- ---- -------- ------ Y 1989 Bowling Green K5102000 K5110724 L98 Engine Y 1989 Bowling Green K5122004 K5126328 L98 Engine Y 1990 Bowling Green L5100001 L5100887 L98 Engine Y 1990 Bowling Green L5800001 L5800120 LT5 Engine

Involved vehicles have been identified by Vehicle Identification Number Computer Listings. Computer listings contain the complete Vehicle Identification Number, owner name and address data, and are furnished to involved dealers with the campaign bulletin. Owner name and address data furnished will enable dealers to follow-up with owners involved in this campaign.

These listings may contain owner names and addresses obtained from State Motor Vehicle Registration Records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.

# OWNER NOTIFICATION -------------------- Owners will be notified of this campaign on their vehicles by Chevrolet Motor Division. Some owners will receive letters addressing more than one campaign on their vehicle (see copy of owner letter included with this bulletin) as shown in the chart below.

VIN Range Campaigns Addressed In Owner Letters --------- ------------------------------------- K5102000 - K5110724 89C17/90C09

K5122004 - K5126328 89C17/90C09

L5800001 - L5800120 90C07/90C09/90C10

L5100001 - L5100887 90C07/90C09

Dear 1989 Chevrolet Corvette Owner:

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

REASON FOR THIS RECALL

General Motors has determined that a defect which relates to motor vehicle safety exists in certain 1988-89 Chevrolet Corvette model vehicles. The rear wheel tie rod assembly of these vehicles may fatigue and could fracture. A fracture in this assembly could result in a loss of vehicle control and a vehicle crash without prior warning.

Additionally, parking brakes on certain 1989-90 Chevrolet Corvette model vehicles may become inoperable due to the cable button pulling through and separating from the nylon reel to which it is attached. This condition occurs on application only, not under sustained load conditions. The condition will be obvious due to a lack of resistance during parking brake application.

WHAT WE WILL DO

To prevent either of these conditions from occurring, vehicles will be inspected and tie rod assemblies found to be faulty will be replaced. Also, a new parking brake assembly will be installed.

This service will be performed for you at no charge.

WHAT YOU SHOULD DO

Please contact your Chevrolet dealer as soon as possible to arrange a service date. Instructions for making this correction have been sent to your dealer and parts will be available on or about the week of April 16, 1990. The labor time necessary to perform this service inspection/correction is approximately 3 hours. Please ask your dealer if you wish to know how much additional time will be needed to schedule and process your vehicle.

Your Chevrolet dealer is best equipped to obtain parts and provide service to insure that your vehicle is corrected as promptly as possible. If, however, you take your vehicle to your dealer on the agreed service date, and they do not remedy this condition on that date or within five (5) days, we recommend you contact the Chevrolet Customer Assistance Center by calling 1-800-222-1020. After contacting your dealer and the Customer Assistance Center, if you are still not satisfied that we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 400 Seventh Street, S.W., Washington, D.C. 20590 or call 1-800-424-9393 (Washington D.C. residents use 366-0123).

The enclosed owner reply card identifies your vehicle. Presentation of this card to your dealer will assist in making the necessary correction/inspection in the shortest possible time. If you have sold or traded your vehicle, please let us know by completing the postage paid reply card and returning it to us. We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your safety and 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.