Front Seat Lumbar Support Replacement Manual

Caution: When you are performing service on or near the SIR components or the SIR wiring, you must disable the SIR system. Refer to Disabling the SIR System. Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.

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. Lift upward and outward on the cardboard panel in order to remove the panel from the seat back.



9. Release the two retainers (1) at the bottom of the lumbar assembly.



10. Pull downward on the lumbar assembly in order to release the lumbar from the seat back frame.
11. 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 inner cardboard panel to the seat back frame.



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

Front Seat Lumbar Support Replacement Power

Caution: When you are performing service on or near the SIR components or the SIR wiring, you must disable the SIR system. Refer to Disabling the SIR System. Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.

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 .
5. Lift upward and outward on the inner cardboard panel to remove the panel from the seat.

Important: Note the routing of the electrical wiring for reinstallation, failure to route the wiring properly could result in damage to the wiring.




6. Disconnect the electrical connectors to the lumbar.
7. Note the routing of the wiring for reinstallation.
8. Release the two retainers 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 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 inner cardboard panel to the seat back frame.
5. Install the seat back cover. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
6. Install the seat cushion. Refer to Front Seat Cushion Replacement .
7. Enable the SIR system. Refer to Enabling the SIR System in SIR.