Seat Adjuster Switch Trim Plate - Detaches from Seat: Overview
File In Section: 08 Body and AccessoriesBulletin No.: 99-08-50-018
Date: October, 1999
TECHNICAL
Subject:
Front Seat Adjuster Switch Trim Plate Detaches from Seat and/or Seat Chucks/Rocks
(Glue Retaining Clips/Install Horizontal Drive Actuator/Drive Asm)
Models:
1997-2000 Buick Park Avenue, Park Avenue Ultra
This bulletin is being revised to update the "Correction for Seat Assembly Movement" (horizontal actuator assembly replacement) portion of this bulletin. Please discard Corporate Bulletin Number 73-16-14A (Section 10 Body).
Condition
Some customers may comment that the front seat adjuster switch trim plate has become detached from the seat and/or the driver and/or passenger seat chucks/rocks or moves forward upon braking and rearward upon acceleration.
Cause
Detachment of the switch plate assembly may be caused by the retaining clips becoming detached from the switch plate. In some instances, the existing clips may not sufficiently retain the switch plate.
The movement or chuck/rock of the seat assembly may be caused by looseness in the horizontal actuator/drive portion of the seat adjuster frame assembly.
Correction for Switch Plate Separation
(1997-98 Park Avenue, Park Avenue Ultra Models)
Glue the retaining clips, P/N 12457175, to the switch plate to correct a loose switch plate condition. The procedure for gluing the clips is outlined below.
In some instances, the existing clips may not sufficiently retain the switch plate. When this condition exists, an additional clip, P/N 12457174 (barrel clip), must be added. The procedure for installing the barrel clip is outlined below.
Loose Switch Plate Repair Procedure
1. Remove the switch plate. Refer to the Seat sub-section of the Service Manual.
2. If the switch plate retaining clips separate from the switch plate, retrieve them from the holes in the seat pan.
3. Install the clips to the switch plate using Goodwrench Instant Gel Adhesive or equivalent to retain the clips.
4. Install the switch plate to the seat pan. Refer to the Seat sub-section of the Service Manual.
Barrel Clip Installation Procedure
Notice:
The locator posts and switch-to-plate retaining tabs break easily.
1. Remove the switch plate. Refer to the Seat sub-section of the Service Manual.
2. Remove the switches from the switch plate, using a flat bladed tool to release the retaining tabs.
3. Use a 5/16-24 die to thread the upper rear locator post (2) onto the switch plate. Thread the upper rear locator post down to the switch retaining tab or "rib". The die may be driven by hand or with a socket if necessary.
4. Install the tubular speed clip (1), P/N 12457174, onto the threaded locator post (2) with the barbed end (3) of the clip facing the switch plate. Install the tubular speed clip (1) onto the locator post until the clip bottoms on the locator post.
5. Glue the tubular speed clip (1) onto the locator post using Goodwrench Instant Gel Adhesive, or equivalent.
Caution:
The front seat pan contains fiberglass. Use appropriate service precautions when working with fiberglass (i.e. gloves, safety glasses).
6. Use a 3/8 inch drill bit to drill out the upper rearward locator hole (4) in the seat pan.
7. Install the seat switches to the switch plate.
8. Install the switch plate to the seat pan. Refer to the Seat sub-section of the Service Manual.
Parts Information
Part Number Description
12457174 Speed Clip
12457175 Clip Fastener
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use the table.