Drivers Power Bucket Seatback Movement During Braking (Replace Seatback Recliner Assembly and Bolts)

This bulletin is being revised to clarify the type of seat involved and revise the Parts and Warranty information. Please discard Corporate Bulletin Number 00-08-50-014 (Section 08 -- Body and Accessories).

Some customers may comment that the driver's power bucket seatback moves forward about 25 to 38 mm (1 to 1½ in) during moderate to heavy braking.

To reduce the amount of vibration being transmitted through the seatback, a spring was incorporated into the driver's bucket seat recliner assembly. This spring pre-loads the seatback to assist in absorbing and reducing vibrations being transmitted through the seatback and into the headrests when the vehicle is in motion. The forward movement of the seatback during moderate to heavy braking is the result of the pre-loading.

Advise customers that bucket seatback movement of 25 to 38 mm (1 to 1½ in) during moderate to heavy braking is considered normal. However, for those customers who desire to have the seatback movement addressed, replace the driver's bucket seatback recliner assembly and attaching bolts. This recliner assembly does not have the pre-load spring used to reduce vibrations. Prior to installation, customers should be advised that there may be some vibration transmitted through the seatback and into the headrest with this recliner assembly.

Parts are expected to be available October 10, 2001 from GMSPO.

For vehicles repaired under warranty, use: