GM Service Manual Online
For 1990-2009 cars only

Your vehicle may have manually operated lumbar support.


Object Number: 1251677  Size: A2

To adjust the driver's seat lumbar support, turn the knob located on the outboard side of the seatback.

Turn the knob forward to adjust the support for the lower part of the seatback. Turn the knob rearward to return the support to its original position.