Seats - Moves Forward During Braking if Unoccupied

9217chevy01

Number: 92-95-10

Section: 10

Date: FEB. 1992

Corporate Bulletin No.: 161511

ASE No.: B1


Subject:
SEAT MOVES FORWARD DURING BRAKING WHILE UNOCCUPIED


Model and Year:
1991-92 C/K TRUCKS WITH HIGH BACK BUCKET OR 60/40 SEAT


Owners of some 1991-92 C/K vehicles may comment that the passenger seat back moves forward during moderate braking if no one is in the passenger seat. The motion of the seat back may cause the easy entry feature to operate, allowing the entire seat to slide forward. If the seat is occupied, the seat back will not move.








To correct this condition, a new positive stop bolt (P/N 15633613) and Belleville Washer (P/N 15665757) should be installed on both sides of the passenger seat. Thq Belleville Washer has a special conical shape and MUST be installed with the point side of the cone pointing toward the bolt head. The conical washer is needed to increase friction during forward seat motion.

SERVICE PROCEDURE:

1. Raise the seat cover and the padding to expose the seat back hinge.

2. Remove the seat hinge positive stop bolt and discard.

3. Install a new positive stop bolt (P/N 15633613) and Belleville Washer (P/N 15665757) with the point of the washer facing the bolt head (Figure 1 and 2).

4. Torque the positive stop bolt to 19-22 N-m. (14-16 lbs.ft.)

5. Verify that the seat no longer moves forward when not desired. If it does, be sure the shoulder of the positive stop bolt is properly seated.

6. Pull the seat cover and the padding back over the hinge assembly.

SERVICE PARTS INFORMATION

Part Number Descripbon Qty/veh

15633613 Positive Stop Bolt 2
15665757 Belleville Washer 2

Parts are expected to be available on 2/10/92. In case of limited inventory, parts will be placed on 400 control to waive VIP surcharges. Only verifiable emergency orders vvill be accepted. SPO will make every effort to obtain parts. However, the part will be shipped premium transportation at the dealer's expense and all other order types will be placed on backorder until the 400 control is removed.

WARRANTY INFORMATION

For vehicles under warranty use:

Labor Operabon: T7361
Labor Time: 0.3 Hr.

Note:
Labor Operation is coded to base vehicle coverage in the Warranty System.