GM Service Manual Online
For 1990-2009 cars only

Lumbar Support System Check A45

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Place the gear selector in PARK position.
  2. Move the RH lumbar switch IN and OUT.

The RH lumbar support moves in and out.

Lumbar Support Does Not Move In or Out

2

Move the RH lumbar switch UP and DOWN.

The RH lumbar support moves up and down.

3

Press the 1 button on the memory function switch.

A single chime is heard. The RH lumbar support moves to the position programmed for driver 1.

Memory Seats System Check

4

Press the 2 button on the memory function switch.

A single chime is heard. The RH lumbar support moves to the position programmed for driver 2.

Memory Seats System Check

5

  1. Adjust the RH lumbar support to provide the desired support.
  2. Press the SET button followed by the 1 button on the memory function switch.
  3. Move the RH lumbar support in all directions.
  4. Press the 1 button on the memory function switch.
    • The RH lumbar support moves as commanded.
    • A single chime is heard. The current position for the RH lumbar support is stored in memory.
    • The RH lumbar support moves as commanded.
    • A single chime is heard. The RH lumbar support moves to the position programmed for driver 1.

Memory Seats System Check

6

  1. Move the gear selector lever in the PARK position.
  2. Press the UNLOCK button on the driver 1 keyless entry transmitter.
  3. Press the UNLOCK button on the driver 2 keyless entry transmitter.

The RH lumbar support performs one of three personalized options.

Diagnostic System Check - Remote Keyless Entry in Keyless Entry

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