Lumbar Support - Back Rest - Front Passenger Seat - Remove and Replace: Remove
- Check that the firmware is version 2023.2.11 or above. If the firmware version is not 2023.2.11 or above, update the vehicle firmware.
- Remove the front passenger seat assembly from the vehicle. See Seat Assembly - 1st Row (LH) - Remove and Replace
- Remove the front passenger seat outboard side shield. See Side Shield - Outboard - Driver Seat - Remove and Replace
- Remove the front passenger seat inboard side shield. See Side Shield - Inboard - Driver Seat - Remove and Replace
- Lay the seat on its seat back to gain access to the underside of the seat cushion.CAUTION: Protect the seat cushion from damage as necessary.
- Release the clips that attach the shell apron to the underside of the seat.
- Disconnect the seat back heater connector.
- Slide the seat back harness connector straight down to release it from the seat assembly.
- Disconnect the seat cushion heat pad connector from the seat back head pad connector.
- Slide the seat cushion connector upward to release it from the seat assembly.
- Return the seat to the upright position.
- Remove the front passenger headrest trim. See Trim - Headrest - Driver - Remove and Replace
- Remove the front passenger back shell. See Shell - Seat Back - Driver - Remove and Replace
- Remove the front passenger seat back trim retainers (x7) from the seat back frame.
- Remove the lower flap that covers the outboard corner of the front passenger seat seat back frame.NOTE: Pull the trim straight up, off of the retaining tabs to release it.
- Remove the upper flap that covers the outboard corner of the front passenger seat seat back frame.NOTE: Pull the lower section of trim away from the retaining tab to release it, then pull the trim straight up off of the upper retaining tab.
- Remove the lower flap covering the inboard corner of the front passenger seat seat back frame.NOTE: Pull the trim straight up, off of the retaining tabs to release it.
- Remove the upper flap that covers the inboard corner of the front passenger seat seat back frame.NOTE: Pull the lower section of trim away from the retaining tab to release it, and then pull the trim straight up off of the upper retaining tab.
- Pull the front passenger seat seat back trim away from the front passenger seat side airbag to gain access to the air bag electrical connector.
Figure 1. LH shown: RH similar
- Disconnect the front passenger seat side airbag and pull the orange tabs (x2) down to release the connector.
Figure 2. LH shown: RH similar
- Remove the bolt that attaches the lumbar support assembly to the seat frame.
5 Nm (3.7 lbs-ft)
- Release the tabs (x2) that attach the bottom of the lumbar support to the seat back frame.
- Remove and discard the nuts (x2) that attach the front passenger seat side airbag to the seat back frame.
5.4 Nm (4.0 lbs-ft)
Tip: Use of the following tool(s) is recommended:
- 10 mm socket
Figure 3. LH shown; RH similar
- Carefully pull the front passenger seat side airbag chute from the seat back frame.CAUTION: Do not remove the airbag from the airbag chute.
- Remove the seat upholstery by pulling the bottom of the seat back trim away from the seat back frame.NOTE: Make sure the heater harness and the seat back trim is clear of the seat back frame.
- Disconnect the electrical harness from the recliner motor connector.
- Disconnect the electrical harness from the lumbar valve pack and ECU.
- Disconnect the electrical harness from the lumbar pump connector.
- Release the clips (x2) that attach the seat harness to the lumbar assembly.
- Squeeze the three lobes on the retaining clips (x2) that attach the lumbar pump to the seat frame, and then push the clip through the frame to release.
- Push the bottom of the back rest lumbar support away from the seat back frame, slide the assembly down to clear lumbar assembly from frame, and then remove the support from the seat assembly.