Interior - Front Manual Seat(s) Won't Adjust/Stuck
TECHNICALBulletin No.: 10-08-50-006A
Date: June 16, 2011
Subject: Front Manual Seat(s) Won't Adjust Forward or Rearward, Sticks or Binds (Install Revised Seat Adjuster Bar, Replace Seat Adjuster)
Models:
2004-2012 Chevrolet Colorado
2004-2012 GMC Canyon
Equipped with Seat RPO AM6 or AR9
Supercede:
This bulletin is being revised to add the 2011-2012 model years. Please discard Corporate Bulletin Number 10-08-50-006 (Section 08 - Body and Accessories).
Condition
Some customers may comment that the front seat(s) appear to be stuck in position and they are unable to move the seat forward or rearward in the vehicle.
Cause
This condition may be caused by the seat adjuster bar (handle) bending or coming out of position. This may also cause damage to the plastic adjuster blocks located in the seat adjuster assembly. Seat tracks (adjuster assemblies) that are not parallel to each other may contribute to the development of this condition.
Correction
Use the following procedure to repair the affected seat(s).
1. Remove the seat from the vehicle. Refer to Front Seat Replacement - Bucket or Split Bench Seat Replacement in SI.
2. Locate the adjuster bar (handle). Determine if the handle pin(s) have come out of the plastic adjuster block(s).
3. If the pin is in the block, inspect the gap between the adjuster bar and the plastic adjuster blocks. There should be no space between the two components.
4. If the pin(s) are out of the block(s) or there is a gap, the adjuster bar needs to be replaced with the revised part listed below.
5. Locate and remove the two fasteners that retain the adjuster bar to the inner and outer seat adjuster assemblies.
6. Remove the adjuster bar. Note that the bar is curved upward at the front.
7. With the adjuster bar removed, inspect the inboard and outboard plastic adjuster blocks for any damage where the adjuster bar engages into the holes in the adjuster blocks. If any damage is detected, the affected seat adjuster assembly must be replaced. The seat adjuster assemblies are available individually (inboard and outboard). Only replace the component that is damaged.
Refer to Manual Seat Adjuster Mechanism Replacement in SI for replacement procedures.
8. Install the revised adjuster bar. When installing the bar, do not apply pressure to the outer ends of the bar, it may bend at the pivot mount holes. Ensure that the curved portion of the bar is in the upward position.
9. With the bar installed, inspect the area where the adjuster bar engages the inboard and outboard adjuster blocks. Ensure that there is no gap between the two components.
10. Reinstall the seat. Refer to Front Seat Replacement - Bucket or Split Bench Seat Replacement in SI.
11. Before tightening the seat mounting bolts, ensure that the inboard and outboard seat tracks are parallel and spaced 305 mm (12 in) apart as shown.
12. With the seat installed, verify the seat adjuster function.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer