Recall - Lower Control Arm Nut Replacement
9219chevy02
GMC NUMBER: 91-C-03
GROUP: 3C-FRONT SUSPENSION
DATE: NOVEMBER, 1990
SUBJECT:
SOFT LOWER CONTROL ARM ATTACHMENT NUTS
MODELS:
1991 S/T TRUCKS BUILT AT SHREVEPORT ASSEMBLY PLANT
The National Traffic and Motor Vehicle Safety Act, as amended, provides that each vehicle which is subject to a recall campaign of this type must be adequately repaired within a reasonable time after the owner has tendered it for repair. A failure to adequately repair within 60 days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time.
If the condition is not adequately repaired within a reasonable time, the owner may be entitied to an identical or reasonably equivalent vehicle at no charge, or to a refund of the purchase price less a reasonable allowance for depreciation. To avoid having to provide these burdensome solutions, every effort must be made to promptly schedule appointments with owners and to repair their vehicles as soon as possible. As you will see in reading the attached copy of the letter which is being sent to owners, the owner is being instructed to contact the nearest GMC Zone Office if the dealer does not remedy the condition within five days of the mutually agreed upon service date. It the condition is not remedied within a reasonable time, they are instructed how to contact the National Highway Tratfic Safety Administration.
DEFECT INVOLVED
General Motors has determined that a defect which relates to motor vehicle safety exists in certain 1991 S/T trucks built at the Shreveport Assembly Plant. These trucks may have nuts, used to attach the lower control arms, rear spring and shackle, and rear shock absorbers, which do not meet specifications. It is possible for the nut to "strip" prior to or at the specified torque, resulting in a loss of clamp load. If clamp load were lost on a lower control arm attachment, the arm could detach, resulting in loss of vehicle control and a vehicle crash without prior warning.
To prevent this condition from occurring, dealers are to replace all of the suspect lower control arm attachment nuts.
Additionally, all of the rear spring and shackle and rear shock absorber nuts will be replaced.
VEHICLES INVOLVED
Involved are certain 1991 S/T Trucks built at the Shreveport Assembly Plant (built 8/6/90). Involved VIN 's are listed.
Vehicle Identification Number Computer Listings are furnished to all involved dealers with the campaign 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. Dealers are to inspect and correct all affected vehicles in new and used vehicle stock prior to their sale.
Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service in the future, you should take the steps necessary to ensure 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.
If the name and address of the owner of an involved vehicle was unavailable to GMC Truck Division at the time of campaign initiation, the dealer must determine the owner's name and address from the dealership sales records. Please provide this information directly on the second copy of the listing next to the applicable VIN so that our records may be updated and the appropriate notification mailed to the owner. This second copy should then be submitted to the address listed below in the previously supplied yellow campaign envelopes.
GMC Truck Division General Motors Corporation
101 Union Street
Plymouth, Michigan 48170
OWNER NOTIFICATION
Owners will be notified of this campaign on their vehicles by GMC Truck Division (see copy of owner letter included with this bulletin). A listing of owner names and addresses has been furnished to the involved dealers to enable dealers to follow up with owners involved in this campaign. This listing 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 this campaign.
SERVICE PROCEDURE
1. Raise the vehicle on a hoist.
2. Identify the type of front and rear suspension, and using Figures 1, 2 and 3 replace the identified fasteners one at a time.
NOTE: DO NOT REMOVE ALL IDENTIFIED FASTENERS AT ONCE THIS MAY CAUSE A CHANGE IN SUSPENSION ADJUSTMENT.
3. Install "Campaign Identification Label."
PARTS INFORMATION
Parts are to be obtained from General Motors Service Parts Operation (GMSPO). To ensure that these parts will be obtained as soon as possible, they should be ordered from GMSPO on a C.I.O. order with no special instruction code but order under an advise code (2).
PART NUMBER DESCRIPTION QUANTITY
11500748 Nut S Truck = 10
T Truck = 12
WARRANTY INFORMATION
Dealers should submit an accurately filled out Warranty Repair Order on each vehicle completed under this campaign.
CAMPAIGN IDENTIFICATION LABEL
Each vehicle corrected in accordance with the instructions outfined in this product campaign bulletin will require a "Campaign Identification Label". Each label provides a space to include the campaign number and five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or 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.
ADMINISTRATIVE PROCEDURE
Procedures covering this campaign are outlined in Section V of your dealership's "GM Truck Claims Processing Manual" # P8919.
Dear GMC Truck Owner:
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.
General Motors has determined that a defect which relates to motor vehicle safety exists in certain 1991 SIT trucks built at the Shrovepon Assembly Plant. These trucks may have nuts, used to attach the lower control arms, rear spring and shackle, and rear shock absorbers, which do not meat specifications. It is possible for the nut to "strip" prior to or at the specified torque, resulting in a loss of clamp load. If clamp load were lost on a lower control arm attachment, the arm could detach, resulting in loss of vehicle control and a vehicle crash without prior warning.
To prevent this condition from occurring, dealers are to replace all of the suspect lower control arm attachment nuts. Additionally, all of the rear spring and shackle and rear shock absorber nuts will be replaced. This service will be completed for you at no charge.
Instructions for performing this service have been sent to your GMC dealer. Please contact your dealer to arrange a service date. The labor time necessary to perform this correction will vary from 1/2 hour to 1-1/2 hour. Please ask your dealer how much additional time will be needed to process your vehicle. Your GMC dealer is best equipped to provide service to ensure your vehicle is corrected as promptly as possible. However, if you take your vehicle to your dealer on the agreed service date and they do not service this condition on that date or within five days, we recommend you contact your nearest GMC Truck Zone Office by telephone. The Zone Office will assist you and your dealer in getting your vehicle corrected. The telephone numbers of the Zone Offices are listed in your Warranty and Owner Assistance Information Manual.
After contacting your dealer and the Zone Office, if you are still not satisfied that we have done our best to remedy this condition without charge 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 800-424-9393 (Washington, D.C. residents use 366-0123).
The enclosed postage paid owner reply card identifies your vehicle. Presentation of this card to your dealer will assist in making the necessary correction to your vehicle in the shortest possible time. If you have sold or traded your vehicle, please furnish us complete name and address of the person you sold or traded your vehicle to and return the card 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 product.