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HOMESERVICE MANUALSTESLA2018MODEL 3 BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSELECTRICAL SYSTEM (2 OF 2) -- MODEL 3ELECTRONIC CONTROL MODULESSTEERING CONTROLLER - REMOVE AND REPLACEREMOVE
2018 Tesla Model 3 Base

Steering Controller - Remove and Replace: Remove

2018 Tesla Model 3 BaseSECTION Remove
  1. Remove the 2nd row lower seat cushion. See SEAT CUSHION - LOWER - 2ND ROW (REMOVE AND REPLACE) .
  2. Remove the rear underhood apron. See UNDERHOOD APRON - REAR (REMOVE AND REPLACE) .
  3. Disconnect 12V power. See 12V/LV POWER (DISCONNECT AND CONNECT) .
  4. Remove the driver airbag. See AIRBAG - DRIVER (REMOVE AND REPLACE) .
  5. Disconnect the steering wheel electrical wiring harness from the connector.
    G14744058Courtesy of TESLA, INC.
  6. Disconnect the electrical harness from the LH steering wheel switch connector.
    G14744059Courtesy of TESLA, INC.
  7. Disconnect the electrical harness from the RH steering wheel switch connector.
    G14744060Courtesy of TESLA, INC.
  8. Release the clips that attach the horn assembly, and then move the horn assembly to the side.
    G14744061Courtesy of TESLA, INC.
  9. Disconnect the electrical harness from the steering wheel controls ECU connector, and then remove the electrical harness from the steering wheel.
    G14744062Courtesy of TESLA, INC.
  10. Remove the screws (x4) that attach the bright surround to the steering wheel, and then remove the surround.

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

    • T20 socket
    G14744063Courtesy of TESLA, INC.
  11. Remove the screws (x2) that attach the steering wheel controls ECU to the bright surround, and then remove the ECU from the surround.

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

    • T10 Torx bit
    G14744064Courtesy of TESLA, INC.
    G14744065Courtesy of TESLA, INC.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.