Dealers, Parts & Service Information
DEALER LISTA list of vehicles involved is enclosed for your follow-up. The list includes: (a.) Those vehicles originally sold by you, providing the current owner is located in your zone; and, (b.) Those vehicles originally sold outside of your zone whose current owner is located in your area of sales/service responsibility.
This list contains 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 list for the follow-up necessary to complete this campaign. If no list is attached, none of the involved vehicles are known to be in your area.
DEALER CAMPAIGN RESPONSIBILITY
Dealers are to service all vehicles involved in this campaign, at no charge to owners, regardless of mileage, age of vehicle, or ownership.
Whenever a vehicle subject to this campaign is taken into used car inventory, dealers are to take the steps necessary to be sure the campaign correction has been made before reselling the vehicle.
In addition, dealers are to perform the campaign on all affected vehicles as they are brought in for any kind of service.
PARTS INFORMATION
The parts required to complete this campaign should be obtained from the Parts Distribution Centers of General Motors Service Parts Operations (GMSPO). A description is provided below:
Description Part Number Quantity
Reinforcement Bracket Kit* 20717579 1
*Reinforcement Bracket Kit Contains:
1 - Floor Pan Anchor Bar Reinforcement Bracket 10 - 3/16" x 1/2" Button Head Aluminum Rivets
NOTE: It is estimated parts will be available June 29, 1987.
If there is difficulty obtaining parts using normal ordering procedures, dealers may place a C.I.O. order using advise Code "2" with no special instruction code. The parts may also be ordered on a V.I.P. order; however, unless prior zone approval is obtained, dealers will be required to absorb any surcharge involved under the V.I.P. system.
If any problems are encountered in obtaining parts, please follow the three step procedure as stated in the GM Parts Emergency Order Follow-up Procedure (Refer to GM Parts Policy & Procedure Manual, Section IV, pages 32 and 33, August 1984 Edition).
Figure 1:
SERVICE PROCEDURE (Refer to Figure 1)
A. Left Front Seat Removal
1. Remove seat adjuster trim cover retaining screws and remove trim covers.
2. Remove four (4) seat adjuster-to-floor pan anchor bar nuts and remove seat assembly from car.
3. Remove carpet retainer trim from bottom of door opening sill.
4. Remove front kick panel.
5. Remove seat belt (shoulder belt) anchor bolt.
6. Lift and roll carpet back to expose the left front outboard floor pan anchor bar stud.
7. Examine floor pan anchor bar at stud location and determine condition of stud to anchor bar attachment.
^ If stud is loose, i.e.., can be rotated in anchor bar or if stud is beginning to tear or has torn away from anchor bar, proceed to Part B, Step 1 of this service procedure.
^ If stud attachment to anchor bar is secure, proceed to Part C, Step 1 of this service procedure. (Small cracks in anchor bar sheet metal at stud location are acceptable if stud will not rotate when seat adjuster-to-floor pan anchor bar nut is tightened.)
B. Anchor Bar Stud Loose
1. Remove stud from floor pan anchor bar. Stud removal can be accomplished by using a 1/4" drill bit and drilling through any anchor bar sheet metal still attached to stud head. To prevent drilling into the stud head, drill through anchor bar sheet metal approximately 1/2" from stud center. Care must be taken not to damage threads on stud.
2. Using a bench grinder, grind off jagged edges of sheet metal on stud head. It is not necessary to remove the sheet metal remaining on the inside (thread side) of stud head.
3. From underside of reinforcement bracket, place stud through hole and tack weld stud to bracket. (Purpose of weld is to keep stud from rotating when seat adjuster-to-floor pan anchor bar nut is tightened.)
4. Position reinforcement bracket (sloped end inboard) on top of floor pan anchor bar. Head on the stud should be positioned into the hole left in anchor bar where stud was removed. Be sure underside of reinforcement bracket evenly contacts top surface of anchor bar.
5. With reinforcement bracket correctly positioned on top of anchor bar, drill four 3/16" holes in top of anchor bar using the pre-drilled holes in reinforcement bracket as a guide.
6. Proceed to Part C, Step 3 of this service procedure.
C. Anchor Bar Stud Secure
1. Place reinforcement bracket (sloped end inboard) over anchor bar stud and allow bracket to self-locate on top of anchor bar. Be sure underside of reinforcement bracket evenly contacts top surface of anchor bar.
2. With reinforcement bracket correctly positioned on top of anchor bar, drill four 3/16" holes in top of anchor bar using the pre-drilled holes in reinforcement bracket as a guide.
3. To secure reinforcement bracket to anchor bar, install and fasten four 3/16" x 1/2" rivets in drilled holes.
4. Repeat drilling and rivet installation procedure for the remaining six holes (3 each side) in the reinforcement bracket. Using a magnet, remove and dispose of metal shavings left from drilling operation.
5. To reassemble seat, reverse Steps 1 through 5 in Part A of this procedure. tighten seat adjuster to floor pan anchor bar nuts to 24 N-m (18 ft.lbs.). When reinstalling, seat belt anchor bolt, be sure belt is not twisted. Tighten seat belt anchor bolt to 42 N-m (31 ft.lbs.).
6. Check seat adjuster for proper operation.