CAMPAIGN: OMITTED WELD ON SEATBACK FRAME EXTENDER ARM. GMC Truck GMC MD Conventional (C Model) 1995

SUBJECT: OMITTED WELD ON SEAT BACK FRAME EXTENDER ARM

Models: 1995 Chevrolet and GMC C6 and C7 Medium Duty Vehicles Equipped with Air Ride Driver and Passenger Low and High Back Bucket Seats (RPO's ARD/AQS/AQQ/ARE/AQT/AQR)

TO: ALL GENERAL MOTORS DEALERS

General Motors of Canada Limited has determined that certain 1995 Chevrolet/GMC C6/7 TopKick Medium Duty Trucks equipped with a National Seating air suspension bucket seat(s) may have been shipped with an incomplete left side seat back frame extender arm weld on the driver's seat and/or the passenger seat.

This condition does not meet the requirements of the Canada Motor Vehicle Safety Standard (CMVSS) 207, "Anchorage of Seats."

To correct this condition, an inspection of the left side seat back extender arm on the driver's and, if equipped, passenger's seats for an omitted weld must be made. Welds should be on both sides of the seat back extender arm. If two welds are present on both the driver's and passenger's seat assemblies, it will not be necessary to perform the Service Procedure. It is necessary to install the required Campaign Completion Label. However, if a weld is missing on either or both the driver's or passenger's seat assemblies, the affected seat back frame assembly(ies) must be replaced.

VEHICLES INVOLVED:

Involved are certain 1995 Chevrolet and GMC C6/7 TopKick Medium Duty Trucks equipped with Air Ride Driver and Passenger Low and High Back Bucket Seats (RPO's ARD/AQS/AQQ/ARE/ AQT/AQR) built within the following breakpoints:

Year Model Plant Plant Code From Through

1995 GMC C6/C7 Janesville J SOP SJ505417 1995 Chevrolet C6/C7 Janesville J SOP SJ103806

NOTE: PLEASE CHECK DCS SCREEN 45 OR YOUR V.I.N. LISTING BEFORE PERFORMING CAMPAIGN TO ENSURE THAT THE VEHICLE IS AFFECTED. ONLY AFFECTED VIN'S WILL BE PAID.

All affected vehicles have been identified by the VIN listing provided to involved dealers with this bulletin. Any dealer not receiving a listing was not shipped any of the affected vehicles.

DEALER CAMPAIGN RESPONSIBILITY:

All unsold new vehicles in dealer's possession and subject to this campaign Must be held and inspected/repaired per the Service Procedure of this Campaign Bulletin before owners take possession of these vehicles.

Dealers are to perform this campaign on all involved vehicles at no charge to owners, regardless of kilometers traveled, age of vehicle, or ownership, from this time forward. Owners of vehicles recently sold from your new vehicle inventory with no owner information indicated on the dealer listing, are to be contacted by the dealer, and arrangements made to make the required correction according to instructions contained in this bulletin. This could be done by mailing to such owners a copy of the owner letter accompanying this bulletin. Campaign follow- up cards should not be used for this purpose, since the owner may not as yet have received the notification letter.

In summary, whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or is in your dealership for service in the future, please take the steps necessary to be sure the campaign correction has been made before selling or releasing the vehicle.

CAMPAIGN PROCEDURE:

Refer to Section 4 of the Service Policies and Procedures Manual for the detailed procedure on handling Product Campaigns. Dealers are requested to complete the campaign on all transfers as soon as possible.

OWNER NOTIFICATION:

All owners of record at the time of campaign release are shown on the attached computer listing and have been notified by first class mail from General Motors (see copy of owner letter included with this bulletin). The listings provided are for campaign activity only and should not be used for any other purpose.

PARTS INFORMATION:

After the inspection for omitted weld is completed, if defective seats are found obtain the correct seat part and serial numbers from the Identification Label located on the inboard (RH) side of the seat frame (refer to Figure 3). If no missing weld(s) are found, a parts order is not necessary. Parts are to be obtained by calling Oshawa at 905-644-6865.

You will be asked to provide the seat assembly part number and serial number. Seats will be shipped no charge within 48 hours.

PARTS AND LABOUR CLAIM INFORMATION:

Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card or DCS transmission in accordance with the following:

Repair Code Description Time Allowance

1A Inspect the left side seat back frame extender .3 arm for omitted weld on driver's and passenger's seats and install Campaign Completion Label. No welds omitted

2A Inspect the left side seat back frame extender .5 arm for omitted weld on driver's and passenger's seats. Weld omitted on one seal Replace one seat back frame assembly.

3A Inspect the left side seat back frame extender .8 arm for omitted welds on driver's and passenger's seats. Welds omitted on both seats. Replace driver and passenger seat back frame assemblies.

Time allowance includes 0.1 hour for dealer administrative detail associated with this campaign. Repair Code 2A includes $40.00 which represents 40% of the Dealer Net Price for one seat back frame and Repair Code 3A includes $80.00 for two seat back frames.

SERVICE PROCEDURE:

NOTICE: Only the left side seat back frame extender arm of each front seat is involved.

1. Refer to Figure 1 for location of the seat back frame extender arm. Pull up the seat cover material and inspect the extender arm on both the driver's and passenger's seat back assemblies for an omitted weld. Two welds, one on each side of the seat back frame extender arm should be present. If both welds are present on both the driver's and passenger's seats, it is NOT necessary to perform the following Service Procedure. However, it is necessary to install the Campaign Completion Label. If one of the welds is missing, on either the driver's or passenger's seats or both seats, continue with Steps 2 through 11.

2. Obtain the seat assembly part and serial numbers for the defective seat back assembly from the silver and black Identification Label located on the RH side of the seat assembly frame (Fig. 2, Item 1). Contact National Seating Company at 1-800-222-7328 Extension 149 (Warranty Department) between the hours of 8:00 a.m. and 4:30 p.m. EST. You will be asked to provide the seat assembly part number, serial number and your "Ship To" address.

3. Upon part receipt, use a 1" socket and remove the recline bolt, wavy washer, and knob located on the left side of the seat (Fig. 2, Item 2). Retain knob and attaching hardware. Note the position of the washer.

4. Remove the back frame plate upper bolt and washers (nut is captured on bracket). Remove the lower nylon locking nut and carriage bolt and remove the back frame plate (Fig. 2, Item 3). Note the position of the washers.

5. Move to the right-hand side of the seat assembly and remove the bolt and wavy washers that holds the back frame to lower frame (Fig. 2, Item 4). Note the position of the washers. Remove the seat back assembly.

6. Position the new seat back assembly in place. Ensure the recline lever guide pin is positioned correctly in the lower frame slotted adjustment opening. Reinstall finger tight the back frame to lower frame washers and bolt located on the right-hand side (Fig. 2, Item 4). Install all washers in previous location.

7. Using existing hardware, reinstall the back frame plate (Fig. 2, Item 3). Finger tighten attaching hardware.

8. Torque the back frame to lower frame bolt (Fig. 2, Item 4) to 24 to 27 N.m (18-20 lb. ft.). Torque the upper back frame plate bolt to 24 to 27 N.m (18-20 lb. ft.). Torque the lower back frame plate carriage bolt nut (Fig. 2, Item 3) to 24-27 N.m (18-20 lb. ft.).

9. Reinstall the reclining knob and attaching hardware (Fig. 2, Item 2). Pull the seat back assembly forward to help ensure the recline lever guide pin fits properly into the spiral groove on the back of the recline knob. Torque the recline knob bolt to 24-27 N.m (18-20 lb. ft.).

THE RECLINE LEVER GUIDE PIN (FIG. 2, ITEM 5) MUST BE PLACED CORRECTLY IN THE RECLINE KNOB SPIRAL FOR FULL RECLINE OPERATION.

10. Rotate the recline knob through the full range of travel to check for freedom of movement during seat reclining. If the knob feels too tight, back off the recline bolt approximately 1/4 to 1/2 turn.

11. Install Campaign Completion Label.

INSTALLATION OF CAMPAIGN IDENTIFICATION LABEL:

Clean surface of radiator upper mounting panel and apply a Campaign Identification Label. Make sure the correct campaign number is inserted on the label. This will indicate that the campaign has been completed.

Dear General Motors Customer.

This condition does not meet the requirements of the Canada Motor Vehicle Safety Standard (CMVSS) 207, "Anchorage of Seats."

To correct this condition, an inspection of the seat back extender arm on both the driver's and passenger's seats for an omitted weld must be made. Welds should be on both sides of the seat back extender arm. If a weld is missing on either or both the driver's or passenger's seat assemblies, the affected seat back frame assembly(ies) will be replaced.

This service will be provided for you at no charge.

Please contact your GM dealer as soon as possible to arrange a service date.

If parts are required, ask your dealer for details regarding their availability. If parts are not in stock, they can be ordered before scheduling your service date.

This letter identifies your vehicle. Presentation of this letter to your dealer will assist their Service personnel in completing the necessary correction to your vehicle in the shortest possible time.

We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.

Customer Support Department General Motors of Canada Limited

Object Number: 86784 Size: MF

Object Number: 88263 Size: LF

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.