GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Push the lumbar inflator switch button up and then down.

Both lateral bladders inflate or deflate within the seat. The pump runs until the bladders are fully inflated and cuts out or deflates.

2

Push the rearward lumbar inflator switch button up and then down.

The lumbar bladder inflates or deflates within the seat. The pump runs until the bladders are fully inflated or deflated and cuts out.

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