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For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1999 🢒 Eldorado 🢒 Body and Accessories 🢒 Seats 🢒 Lumbar Support System Check

Lumbar Support System Check AL2

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Move the LH lumbar switch IN and OUT.

The LH lumbar support moves in and out.

Lumbar Support Does Not Move In or Out - Driver

2

Move the LH lumbar switch UP and DOWN.

The LH lumbar support moves up and down.

3

Move the RH lumbar switch IN and OUT.

The RH lumbar support moves in and out.

Lumbar Support Does Not Move In or Out - Passenger

4

Move the RH lumbar switch UP and DOWN.

The RH 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 LH lumbar switch IN and OUT.

The LH lumbar support moves in and out.

2

Move the LH lumbar switch UP and DOWN.

The LH lumbar support moves up and down.

Lumbar Support Does Not Move Up or Down - Driver

3

Press the 1 button on the memory function switch.

A single chime is heard. The LH lumbar support moves to the position programmed for driver 1. Note that the LH seat, headrest, steering column, and both mirrors may also move.

Memory Seats System Check

4

Press the 2 button on the memory function switch.

A single chime is heard. The LH lumbar support moves to the position programmed for driver 2. Note that the LH seat, headrest, steering column, and both mirrors may also move.

Memory Seats System Check

5
  1. Adjust the LH 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 LH lumbar support in all directions.
  4. Press the 1 button on the memory function switch.
    • The LH lumbar support moves as commanded.
    • A single chime is heard. The current position for the LH lumbar support is stored in memory. Note that the positions for the LH seat, headrest, steering column, and both mirrors will also be stored.
    • The LH lumbar support moves as commanded.
    • A single chime is heard. The LH 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 LH 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.

Lumbar Support System Check AM3

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Place the gear selector in the PARK position.
  2. Move the LH lumbar switch UP momentarily.
    • The LH lumbar support begins the massage operation and will operate for 10 minutes unless the LH lumbar switch is moved DOWN momentarily.
    • The lumbar support will move a total of 50 mm (1.97 in) each direction of up and down for the massage cycle time.
    • When the lumbar massage is completed, the lumbar support will return to the position from which the massage was initiated.

Lumbar Support Does Not Move Up - Driver

2

Move the LH lumbar switch DOWN momentarily.
    • The LH lumbar support massage operation is cancelled.
    • Manually moving the LH lumbar switch UP or DOWN also cancels massage operation and moves the lumbar support in the desired direction.

Lumbar Support Does Not Move Down - Driver

3

Move the RH lumbar switch UP momentarily.
    • The RH lumbar support begins the massage operation and will operate for 10 minutes unless the RH lumbar switch is moved DOWN momentarily.
    • The lumbar support will move a total of 50 mm (1.97 in) each direction of up and down for the massage cycle time.
    • When the lumbar massage is completed, the lumbar support will return to the position from which the massage was initiated.

4

Move the RH lumbar switch DOWN momentarily.
    • The RH lumbar support massage operation is cancelled.
    • Manually moving the RH lumbar switch UP or DOWN also cancels massage operation and moves the lumbar support in the desired direction.

5

Press the 1 button on the memory function switch.
    • A single chime is heard.
    • The LH lumbar support moves to the position programmed for driver 1. Note that the LH seat, headrest, steering column, and both mirrors may also move.
    • If lumbar massage is active, massage will continue its normal operation.
    • When massage has ceased, lumbar vertical will return to the position programmed for driver 1.

Memory Seats System Check

6

Press the 2 button on the memory function switch.
    • A single chime is heard.
    • The LH lumbar support moves to the position programmed for driver 2. Note that the LH seat, headrest, steering column, and both mirrors may also move.
    • If lumbar massage is active, massage will continue its normal operation.
    • When massage has ceased, lumbar vertical will return to the position programmed for driver 2.

Memory Seats System Check

7
  1. Adjust the LH 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 LH lumbar support in all directions.
  4. Press the 1 button on the memory function switch.
    • The LH lumbar support moves as commanded.
    • A single chime is heard. The current position for the LH lumbar support is stored in memory. Note that the positions for the LH seat, headrest, steering column, and both mirrors will also be stored.
    • The LH lumbar support moves as commanded.
    • A single chime is heard. The LH lumbar support moves to the position programmed for driver 1.

Memory Seats System Check

8
  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 LH 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.