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

Lumbar Support System Check Oldsmobile w/ AL2

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Sit in the left seat.
  2. Briefly hold the left lumbar switch in the INFLATE position.
    • You can hear the seat air pump running.
    • The left seat lumbar support inflates.

Lumbar Support Inoperative

2

Briefly hold the left lumbar switch in the DEFLATE position.

The left seat lumbar support deflates.

Lumbar Support Does Not Deflate

3
  1. Sit in the right seat.
  2. Briefly hold the right lumbar switch in the INFLATE position.
    • You can hear the seat air pump running.
    • The right lumbar support inflates.

Lumbar Support Inoperative

4

Briefly hold the right lumbar switch in the DEFLATE position.

The right lumbar support deflates.

Lumbar Support Does Not Deflate

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

Lumbar Support System Check Pontiac w/ AL7

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Place the seat select switch in the LH position.
  2. Briefly hold each of the following lumbar switches in the INFLATE position:
    3. • UPPER
    • MIDDLE
    • LOWER
    • SIDE BOLSTER
    • You can hear the seat air pump running.
    • The appropriate section of the LH lumbar support inflates.

2

Briefly hold each of the following lumbar switches in the DEFLATE position:

    • UPPER
    • MIDDLE
    • LOWER
    • SIDE BOLSTER
    • You can hear the seat air pump running.
    • The appropriate section of the left lumbar support deflates.

3
  1. Place the seat select switch in the RH position.
  2. Briefly hold each of the following lumbar switches in the INFLATE position:
    3. • UPPER
    • MIDDLE
    • LOWER
    • SIDE BOLSTER
    • You can hear the seat air pump running.
    • The appropriate section of the right lumbar support deflates.

4

Briefly hold each of the following lumbar switches in the DEFLATE position:

    • UPPER
    • MIDDLE
    • LOWER
    • SIDE BOLSTER
    • You can hear the seat air pump running.
    • The appropriate section of the left lumbar support deflates.

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