CAMPAIGN: TIRE SEALING BEAD DAMAGED AT FACTORY

Model and Year: 1990 CHEVROLET GEO PRIZM AND PRISM LSi

General Motors has determined that the tire bead area of certain 1990 Chevrolet Geo Prizm and Prizm LSi model vehicles may have been damaged during the tire mounting process. Vehicles with this condition may experience a gradual loss of air pressure. To correct this condition, dealers will dismount and inspect all tires (except for space-saver spare). Any tire that is found to have the possibility of tire bead damage will be replaced.

VEHICLES INVOLVED

Involved are certain 1990 Chevrolet Geo Prizm and Prizm LSi model vehicles built within the following VIN breakpoints:

YEAR/MODEL PLANT FROM THROUGH ---------- ----- ----- ------- 1990 Prizm & Fremont LZ103597 LZ112465 Prizm LSi (NUMMI)

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 (see copy of owner letter included with this bulletin).

DEALER CAMPAIGN RESPONSIBILITY

Dealers are to service all vehicles 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 vour 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 correction according to instructions contained in this bulletin.

PARTS INFORMATION

Tires required to complete this campaign are to be obtained from local Firestone or Goodyear Tire outlets. Replacement tire(s) are to be of the identical brand, size and type. If identical tires are not available, contact the tire manufacturer for assistance.

Tire Manufactures:

Goodyear - 1-800-321-2136

Firestone - 1-800-638-4730

Quantity/ Part Number Description Vehicle ------------ ----------- -------- 772675456 Goodyear Tire - 1 to 4 (Goodyear Part no.) P175/70 R13 - Invicta GL

799675840 Goodyear Tire - 1 to 4 (Goodyear Part no.) P175/70 R13 - Corsa GT

080268 Firestone Tire - 1 to 4 (Firestone Part no.) FRZZ 175/70 R13

087653 Firestone Tire - 1 to 4 (Firestone Part no.) WRIZ 175/70 R13

SERVICE PROCEDURE

NOTICE: All tires must be inspected for inboard tire bead damage (tearing), except for the space-saver spare.

1. Remove tire/wheel assembly from vehicle.

2. Dismount inboard tire bead from wheel assembly.

3. Inspect inboard tire bead for any signs of tearing.

NOTICE: If the tire has only the following, do not replace: - Normal abrasion caused by dismounting tire. - Normal scuffing caused by dismounting tire.

4. If no inboard tire bead damage (tearing) is found, remount inboard tire bead. If inboard tire bead damage (tearing) is found, install a new tire (see "Parts Information" section) onto wheel assembly.

5. Balance tire (perform balancing on all tires regardless of if a new tire is or is not installed).

6. Install balanced tire/wheel assembly to vehicle.

7. Ensure that damaged (torn) tire is not usable by:

a. Cutting a hole in the tire sidewall at least 1" in diameter with a hole saw or drill, or

b. Cutting at least 3" in length through the tire sidewall with a sharp knife or other cutting tool.

8. With a white or yellow grease crayon, indicate on the tire sidewall the damaged area requiring the tire to be replaced, the repair order number and/or VIN, and clearly mark "FOR SCRAP ONLY".

9. Once all tires have been inspected and/or replaced, install Campaign Identification Label and complete a tire registration form for any tires replaced.

CAMPAIGN IDENTIFICATION LABEL

Each vehicle corrected in accordance with the instructions outlined in this bulletin will require a "Campaign Identification Label". Each label provides a space to include 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.

Each "Campaign Identification Label" is to be located on the radiator core support in an area which will be visible when the vehicle is brought in for periodic servicing by the owner. Apply "Campaign Identification Label" only on a clean, dry surface.

TIRE REGISTRATION FORM

A tire registration form will be sent to all owners and dealers. The appropriate (Firestone or Goodyear) tire registration form is to be completed by the dealer and sent to the appropriate tire manufacturer.

CLAIM INFORMATION

Submit a Product Campaign Claim with the information indicated below:

* ** FAILED PARTS CC-FC LABOR LAB OTH NET REPAIR PERFORMED PC PART NO. ALLOW OP HRS HRS AMT

Inspect - No Tires Need Replacement SK-00 V5900 1.7 0.1 $4.00 - BaLance All Tires

Inspect/Replace 1 Tire - Balance All SK-00 V5901 1.7 0.1 $##.## Tires

Inspect/Replace 2 Tires - Balance SK-00 V5902 1.7 0.1 $###.## All Tires

Inspect/Replace 3 Tires - Balance SK-00 V5903 1.7 0.1 $###.## All Tires

Inspect/Replace 4 Tires - Balance SK-00 V5904 1.7 0.1 $###.## All Tires

*Campaign AdMinistrative Allowance.

**The amount identified in the "Net Amount" column should represent cost plus 30% for Tires used in conjunction with labor operations V5901, V5902, V5903 & V5904. The $4.00 "Net Amount" identified in labor operation V5900 represents the cost of tire weights used in the tire balancing process.

Dealers will automatically receive the correct labor and material allowance based on the labor operation performed. Refer to the Chevrolet Claims Processing Manual for details on Product Campaign Claim Submission.

Dear Chevrolet Geo Owner:

This notice is sent to inform you that Chevrolet Motor Division is conducting a recall campaign that includes your vehicle.

REASON FOR THIS RECALL

General Motors has determined that the tire bead area of certain 1990 Chevrolet Geo Prizm and Prizm LSi model vehicles may have been damaged during the tire mounting process. Vehicles with this condition may experience a gradual loss of air pressure.

WHAT WE WILL DO

To correct this condition, dealers will dismount and inspect all tires (except for space-saver spare). Any tire that is found to have the possibility of tire bead damage will be replaced.

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 inspection/correction have been sent to your dealer. Please ask your dealer if you wish to know how much time will be needed to schedule, process and repair your vehicle.

The enclosed owner reply card identifies your vehicle. Presentation of this card to your dealer will assist in making the necessary inspection/correction 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.

Also enclosed with this letter are tire registration forms (one Goodyear and one Firestone) which should be presented to the dealer when your car is in for its inspection/correction. The appropriate card will then be filled out by your Chevrolet dealer and sent to the tire manufacturer.

We are sorry to cause you this inconvenience; however, we have taken this 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.