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For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1998 🢒 DeVille 🢒 Body and Accessories 🢒 Seats 🢒 Lumbar Support System Check

Lumbar Support System Check AL2

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Move the left lumbar switch IN and OUT.

The left lumbar support moves in and out.

2

Move the left lumbar switch UP and DOWN.

The left lumbar support moves up and down.

3

Move the right lumbar switch IN and OUT.

The right lumbar support moves in and out.

4

Move the right lumbar switch UP and DOWN.

The right lumbar support moves up and down.

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

Lumbar Support System Check A45

Step

Action

Normal Result(s)

Abnormal Result(s)*

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

The left lumbar support moves in and out.

2

Move the left lumbar switch UP and DOWN.

The left lumbar support moves up and down.

3

Press the 1 button on the memory function switch.
    • A single chime is heard.
    • The left lumbar support moves to the position programmed for driver 1.
    • The following components may also move:
       - The left seat
       - The headrest
       - The steering column
       - Both of the mirrors

Memory Seats System Check

4

Press the 2 button on the memory function switch.
    • A single chime is heard.
    • The left lumbar support moves to the position programmed for driver 2.
    • The following components may also move:
       - The left seat
       - The headrest
       - The steering column
       - Both of the mirrors

Memory Seats System Check

5
  1. Adjust the left lumbar support in order to provide the desired support.
  2. Press the SET button followed by the 1 button on the memory function switch.
  3. Move the left lumbar support in all directions.
  4. Press the 1 button on the memory function switch.
    • The left lumbar support moves as commanded.
    • A single chime is heard.
    • The current position for the following components is stored in the memory:
       - The left lumbar support
       - The left seat
       - The headrest
       - The steering column
       - Both of the mirrors
    • The left lumbar support moves as commanded.
    • A single chime is heard.
    • The left 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 side 1 keyless entry transmitter.
  3. Press the UNLOCK button on the driver side  2 keyless entry transmitter.

The left lumbar support performs one of three personalized options. Refer to Memory Seat Circuit Description .

Remote Keyless Entry System Check in Keyless Entry

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