GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Aurora 🢒 Body and Accessories 🢒 Seats 🢒 Lumbar Support System Check

Lumbar Support System Check Buick

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Sit in the LH front seat.
  2. Briefly hold the LH lumbar switch in the IN position.

The LH lumbar support moves in.

Lumbar Support Inoperative

2

Briefly hold the LH lumbar switch in the OUT position.

The LH lumbar support moves out.

Lumbar Support Inoperative

3
  1. Sit in the RH front seat
  2. Briefly hold the RH lumbar switch in the IN position.

The RH lumbar support moves in.

Lumbar Support Inoperative

4

Briefly hold the RH lumbar switch in the OUT position.

The RH lumbar support moves out.

Lumbar Support Inoperative

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

Lumbar Support System Check Oldsmobile

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Sit in the LH front seat.
  2. Briefly operate each of the following lumbar switches:
    • UPPER Inflate.
    • UPPER Deflate.
    • LOWER Inflate.
    • LOWER Deflate.
  1. The seat air pump can be heard running.
  2. Appropriate section of the LH front lumbar support inflates and deflates.

2
  1. Sit in the RH front seat.
  2. Briefly operate each of the following lumbar switches:
    • UPPER Inflate.
    • UPPER Deflate.
    • LOWER Inflate.
    • LOWER Deflate.
  1. The seat air pump can be heard running.
  2. The appropriate section of the RH front lumbar support inflates and deflates.

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