GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Set the entire seat adjuster switch to ANY position.

The seat will move in the direction that the seat adjuster switch is set.

Power Seat Inoperative

2

Set the entire seat adjuster switch to the FORWARD and then the BACK position.

The seat will move forward and backward.

Power Seat Adjuster Does Not Move Vertically

3

Set the front height switch to the UP and then the DOWN position.

The front of the seat will tilt up and down.

Power Seat Does Not Tilt Forward

4

Set the rear height switch to the UP and then the DOWN position.

The rear of the seat will tilt up and down.

Power Seat Does Not Tilt Rearward

5

Set the entire seat adjuster switch to the UP and then the DOWN position.

The seat will raise and lower.

Power Seat Adjuster Does Not Move Horizontally

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.