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Home >> Tesla >> 2019 >> Model 3 Performance >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Seats -- Model 3 >> Front Seat Assemblies and Hardware >> Lumbar Support - Back Rest - Front Passenger Seat - Remove and Replace >> Install

Lumbar Support - Back Rest - Front Passenger Seat - Remove and Replace: Install

  1. Slide the top of the lumbar assembly posts into the top of the seat back frame, push the assembly in toward the foam, slide the assembly down toward the bottom of the seat frame, and then clip the bottom of the assembly to the bottom of the seat frame.
    G00650261Courtesy of TESLA, INC.
    G00650259Courtesy of TESLA, INC.
  2. Secure the retaining clips (x2) that attach the lumbar pump to the seat frame.
    G00650263Courtesy of TESLA, INC.
  3. Install the front passenger seat seat back and foam onto the seat back frame.
    NOTE: Start by sliding the foam trim straight onto the seat back frame. Ensure the posts for the headrests engage the seat back foam. Ensure the heater harness and lower trim that engages the frame are pushed through to the back side of the frame.
    G00650264Courtesy of TESLA, INC.
    G00650265Courtesy of TESLA, INC.
    G00650266Courtesy of TESLA, INC.
  4. Install the front passenger seat side airbag studs into the seat back frame.
    NOTE: The studs should line up with the two round holes. The elongated hole is not used for this part.

    Figure 5. LH shown; RH similar

    G00650267Courtesy of TESLA, INC.
  5. Install the nuts (x2) that attach the front passenger seat 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 6. LH shown; RH similar

    G00650246Courtesy of TESLA, INC.
  6. Connect front passenger seat side airbag electrical connector.

    Figure 7. LH shown; RH similar

    G00650247Courtesy of TESLA, INC.
  7. Install the tabs (x2) that attach the bottom of the lumbar support to the seat back frame.
    G00650248Courtesy of TESLA, INC.
  8. Install the bolt that attaches the bottom of the lumbar support to the seat back frame.

    5 Nm (3.7 lbs-ft) 

    NOTE: The bolt is located below the lumbar ECU.

    Tip: Use of the following tool(s) is recommended:

    • 10 mm socket
    G00650249Courtesy of TESLA, INC.
  9. Install the upper flap that covers the outboard corner of the front passenger seat seat back frame.
    NOTE: Pull the flap over the metal tangs to secure it.
    G00650250Courtesy of TESLA, INC.
  10. Install the upper flap that covers the inboard corner of the front passenger seat seat back frame.
    NOTE: Pull the flap over the metal tangs to secure it.
    G00650233Courtesy of TESLA, INC.
  11. Install the lower flap that covers the outboard corner of the front passenger seat seat back frame.
    NOTE: Pull the flap over the metal tangs to secure it.
    G00650251Courtesy of TESLA, INC.
  12. Install the lower flap covering the inboard corner of the front passenger seat seat back frame.
    NOTE: Pull the flap over the metal tangs to secure it.
    G00650252Courtesy of TESLA, INC.
  13. Install the front passenger seat back trim retainers(x7) to the front passenger seat back frame.
    G00650253Courtesy of TESLA, INC.
  14. Install the front passenger seat back shell onto the seat. See Shell - Seat Back - Driver - Remove and Replace 
  15. Install the front passenger headrest trim. See Trim - Headrest - Driver - Remove and Replace 
  16. 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.
  17. Install the seat cushion connector to the seat assembly.
    G00650254Courtesy of TESLA, INC.
  18. Connect the seat cushion heat pad connector to the seat back head pad connector.
    G00650255Courtesy of TESLA, INC.
  19. Install the seat back harness connector to the seat assembly.
    G00650256Courtesy of TESLA, INC.
    G00650257Courtesy of TESLA, INC.
  20. Connect the seat back heater connector.
    G00650258Courtesy of TESLA, INC.
  21. Install the front passenger seat inboard side shield. See Side Shield - Inboard - Driver Seat - Remove and Replace 
  22. Install the front passenger seat outboard side shield. See Side Shield - Outboard - Driver Seat - Remove and Replace 
  23. Install the front passenger seat assembly. See Seat Assembly - 1st Row (LH) - Remove and Replace 
  24. Install the front passenger seat assembly from the vehicle. See Seat Assembly - 1st Row (LH) - Remove and Replace 
  25. If servicing the front passenger seat in a North American vehicle: 
    1. Remove all objects from the front passenger seat before beginning calibration.
    2. On the vehicle touchscreen, touch Controls (Vehicle Icon) > Software  and check the vehicle firmware version. If the vehicle firmware is 2023.2.11 or newer, perform a software reinstall. See SOFTWARE REINSTALL - TOUCHSCREEN . If the vehicle firmware is not 2023.2.11 or newer, update the vehicle firmware. See SOFTWARE UPDATE
    3. Locally connect a laptop with Toolbox 3 to the vehicle. See TOOLBOX 3 - CONNECT AND DISCONNECT
    4. Unlock the vehicle gateway. See GATEWAY (UNLOCK)
    5. In Toolbox, click on the Actions  tab, and then search for "OCS".
    6. Run  the PROC_OCS1P_SELF-CALIBRATION routine.
    7. Click on the Actions  tab, and then search for "Seat calibration".
    8. Run  the PROC_VCRIGHT_SEAT-TEST-CALIBRATE routine.
    9. Disconnect Toolbox and remove the laptop from the vehicle.
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