Front Seat Lumbar Support Replacement Manual

Caution: Refer to SIR Handling Caution in the Preface section.

1. Disable the SIR system. Refer to Disabling the SIR System in SIR.



2. Position the seat back to the full upright position.
3. Position the seat cushion out of the way. Refer to Front Seat Cushion Replacement .
4. Remove the lumbar support knob. Refer to Lumbar Support Knob Replacement .
5. Remove the fasteners (3) securing the lumbar cable to the seat cushion frame.
6. Note the routing location of the lumbar cable for reinstallation.

Remove the lumbar cable from the seat cushion frame.

7. Remove the seat back cover and pad. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .



8. Release the 2 retainers (1) at the bottom of the lumbar assembly.



9. Pull downward on the lumbar assembly in order to release the lumbar from the seat back frame.
10. Remove the lumbar assembly from the seat.

1. Install the lumbar cable down through the seat back and under the seat cushion frame as noted during the removal procedure.
2. Install the power lumbar assembly to the seat back frame. Ensure the top of the rods are installed into the nylon guides in the seat back frame



3. Secure the power lumbar assembly by snapping the retainers (1) onto the bar at the bottom of the seat back frame.



4. Install the fasteners (3) in order to secure the lumbar support cable to the seat cushion frame.
5. Install the manual lumbar support knob by snapping into place.
6. Install the seat back cover. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
7. Install the seat cushion. Refer to Front Seat Cushion Replacement .
8. Enable the SIR system. Refer to Enabling the SIR System in SIR.

Front Seat Lumbar Support Replacement Power

Caution: Refer to SIR Handling Caution in the Preface section.

1. Disable the SIR system. Refer to Disabling the SIR System in SIR.
2. Position the seat back to the full upright position.
3. Position the seat cushion out of the way. Refer to Front Seat Cushion Replacement .
4. Remove the seat back cover and pad in order to gain access to the lumbar assembly. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .

Notice: Refer to Electrical Wiring Routing Notice in the Preface section.




5. Disconnect the electrical connectors to the lumbar.
6. Note the routing of the wiring for reinstallation.
7. Release the 2 retainers at the bottom of the lumbar assembly.
8. Pull downward on the lumbar assembly in order to release the lumbar from the seat back frame.
9. Remove the lumbar assembly from the seat.

1. Install the power lumbar assembly to the seat back frame.
2. Secure the power lumbar assembly by snapping the retainers onto the bar at the bottom of the seat back frame.
3. Connect the power lumbar electrical connectors.
4. Install the seat back cover. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
5. Install the seat cushion. Refer to Front Seat Cushion Replacement .
6. Enable the SIR system. Refer to Enabling the SIR System in SIR.