CAMPAIGN: FRONT SEAT BACK RECLINER ATTACHMENT
SUBJECT: SEAT BACK RECLINER ATTACHMENT -----------------------------
Models: 1993-1994 Chevrolet and GMC C/K Extended Cab Trucks ----------------------------------------------------
TO: ALL GENERAL MOTORS DEALERS
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THIS BULLETIN CANCELS AND REPLACES BULLETIN 5D44 ISSUED MARCH, 1996. ALL COPIES OF 5D44 SHOULD BE DESTROYED.
THE PARTS AND LABOUR CLAIM INFORMATION SECTION HAS BEEN REVISED TO ADD ADDITIONAL REPAIR CODES. THE SERVICE PROCEDUR HAS BEEN REVISED TO ADDRESS THE ISSUE OF LEATHER SEATS AND NON-PRODUCTION SEATS.
General Motors of Canada Limited has decided that a defect, which relates to motor vehicle safety, exists in CERTAIN 1993-1994 Chevrolet Silverado and GMC Sierra C/K Extended Cab Trucks equipped with front high-back bucket seats (A95) or 60/40 split bench seats (AE7). The seat recliner to seat frame attaching bolts could loosen, fatigue, and fracture, allowing the seat back to suddenly recline. If this were to occur to the driver's seat, this could result in sudden loss of vehicle control and a vehicle crash without prior warning.
To correct this condition, dealers will remove all foam and/or fabric sandwiched between the recliner assembly and the seat frame, install washers between the seat recliner and the seat frame at each attachment point, and install new attaching bolts torqued to a higher specification. These corrections will be performed on both the driver's and passenger's seat.
VEHICLES
Involved are CERTAIN 1993-1994 Chevrolet and GMC C/K Extended Cab Trucks equipped with front high-back bucket seats (A95) or 60/40 split bench seats (AE7) built within the following VIN breakpoints:
Year Model Plant Plant Code From Through ---- ----- ----- ---------- ---- -------
1993 GMC C/K Trucks Pontiac E SOP EOP 1993 Chevrolet C/K Trucks Pontiac E SOP EOP 1993 GMC C/K Trucks Oshawa 1 SOP EOP 1993 Chevrolet C/K Trucks Oshawa 1 SOP EOP 1994 GMC C/K Trucks Pontiac E SOP EOP 1994 Chevrolet C/K Trucks Pontiac E SOP EOP 1994 GMC C/K Trucks Oshawa 1 SOP EOP 1994 Chevrolet C/K Trucks Oshawa 1 SOP EOP
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 WELL 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 kilometres 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 ftom 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:
Parts required to complete this campaign should be ordered through regular channels, as follows:
Part Number Description Quantity/Vehicle ----------- ------------ ----------------
12386792 Bolt and Washer Kit - 1993 Model Year 1
12386793 Bolt and Washer Kit - 1994 Model Year 1
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; Production Seats not in Vehicle .3
2A R & R Seat Recliner Bolts and Clean Joints - .7 Driver and Passenger Seats
3A R & R BROKEN Seat Recliner Bolt(s) 1.0 (up to two broken bolts) and Clean Joints - Driver and Passenger Seats
4A Replace Driver's Front Seat Cushion Frame 1.2
5A Replace Passenger Fron Seat Cushion Frame 1.2
Time allowance includes 0.1 hour for dealer administrative detail associated with this campaign. Parts credit will be based on dealer net plus 0% to cover parts handling.
SERVICE PROCEDURE:
1. Inspect type of seat:
- If the vehicle has the production seat, proceed to step 2.
- If the vehicle has non-production seat (i.e., conversion packages), proceed to step 16.
2. Remove entry lever handle from passenger seat.
3. Remove recliner lever handle.
4. Remove screws for side cover and remove plastic cover.
5. Peel Velcro strip loose at bottom of seat back.
Note: For envelope trim seats on base level and leather interiors, remove retaining devbice, pull back cover and foam to allow access to upper bolts, and proceed to step 8.
6. Remove staple above zipper at lower centre of seat back (if applicable).
7. Unzip seat back cover and pull back to allow access to upper bolts.
8. Remove and discard all four bolts attaching recliner mechanism.
Note: If one or more bolts breat at or above the surface of the seat fram, they could be removed using appropriate care to ensure that the threads in the seat frame are not damaged. A good quality drill bit and an easy-out (extractor) will be required due to the hardness of the broken bolt(s). If a bolt breaks below the surface of the seat frame, or if inspection of the threads in the seat fram reveals damage, the seat frame should be replaced. Repairing of damaged threads should not be attempted.
9. Remove recliner mechanism and inspect for damage such as elongated holes or broken metal. Replace as necessary.
10. Inspect for trapped foam/material under the recliner mechanism in the lower bolt locations. While foam/material in the threads is irrelevant, there should be a 1.5" diameter hole in the seat cushion material under the recliner mechanism to ensure good metal-to-metal contact. (Figure 1)
11. If foam/material is present under the recliner mechanism to frame mating surface, remove material with a putty knife to provide metal-to-metal contact between the recliner mechanism washer and the seat frame.
12. If cloth material interferes with the mating surfaces, cut excess cloth away.
13. Install new bolts and wahsers using a beam-type wrench, e.g., dial (recommended), digital or pointer. Washer shoudl be located directly against the seat frame. The easy entry cable (where applicable) should be located between the washers and the recl;iner mechanism. Assemble as follows:
1993 Model Trucks - (Figure 2) On driver's and passenger's seats you are to use countersunk bolts with black anodized washers in the two upper bolt holes.
IMPORTANT: Torque bolts to 42 N.m (31 ft. lb.).
Lower two holes require hex-head bolts and silver coloured washers.
IMPORTANT: Torque to 42 N,m (31 ft. lb.)
1994 Model Trucks - (Figure 3) Use new bolts and washers provided.
IMPORTANT: Torque to 42 N.m (31 ft. lb.).
14. Reinstall trim cover and levers.
15. Repeat above steps for the driver's seat.
16. Install Campaign Identification 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.
March 1996
Dear General Motors Customer:
General Motors of Canada Limited has decided that a defect, which relates to motor vehicle safety, exists in CERTAIN 1993-1994 Chevrolet Silverado and GMC Sierra C/K Extended Cab Trucks equipped with front high-back bucket seats or 60/40 split bench seats. The seat recliner to seat frame attaching bolts on the vehicles could loosen, fatigue, and fracture, allowing the seat back to suddenly recline. If this were to occur to the driver's seat, this could result in sudden loss of vehicle control and a vehicle crash without prior warning.
To correct this condition, your GM dealer will remove all foam and/or fabric sandwiched between the recliner assembly and the seat frame, install washers between the seat recliner and the seat frame at each attachment point, and install new attaching bolts torqued to a higher specification.
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
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.
