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Trailer Hitch - Rear Energy Absorber - Retrofit: Install

  1. For EU (ECE) trailer sockets only:  Perform these sub-steps to prevent water ingress.
    1. Disconnect the trailer hitch jumper harness electrical connector from the trailer hitch ECU.
    2. Release the fir tree clip that attaches the trailer hitch jumper harness to the trailer hitch assembly, and then cut and remove the fir tree clip from the harness.
    3. Apply tape to the trailer hitch harness, from the trailer socket towards the trailer hitch ECU connector, keeping short overlaps to ensure no gaps are present.
      NOTE: Tape the corner of the label, but keep it visible.

      Tip: In the images, the jumper harness is removed from the vehicle. For this procedure, the trailer socket can remain attached to the trailer hitch.

      G16588589Courtesy of TESLA, INC.
    4. Install a new fir tree clip onto the trailer jumper harness at approximately 23 cm (9 in) from the trailer hitch ECU connector, and then trim the excess zip tie.
      G16588590Courtesy of TESLA, INC.
    5. Attach the fir tree clip of the trailer jumper harness to the trailer hitch, and then connect the trailer hitch jumper harness electrical connector to the trailer hitch ECU.
  2. Install the trailer hitch onto the vehicle, and then secure the nuts (x6) that attach the trailer hitch to the vehicle.

    60 N.m (44.2 lbs-ft) 

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

    • 6 in extension
    • Ratchet/torque wrench
    • Cordless Ratchet/Impact Driver
    • 15 mm deep socket
    • Torque wrench with angle measurement (for installation only)
    G16588591Courtesy of TESLA, INC.
  3. Install the rear center bracket. See REAR BUMPER FASCIA - REAR FASCIA CENTER BRACKET - REMOVE AND REPLACE .
  4. Remove the grey body harness connector from the dummy plug, and then connect the grey connector to the trailer hitch ECU.
    G16588592Courtesy of TESLA, INC.
  5. Install the rear fascia. See BUMPER AND FASCIA - REAR BUMPER FASCIA - REAR FASCIA - REMOVE AND INSTALL .
  6. Connect a laptop with Toolbox 3 to the vehicle. See TOOLBOX 3 - CONNECT AND DISCONNECT .
  7. Select the Dashboards  tab, and then select the Infotainment Dashboard  and Vehicle Configuration  .
  8. Select Read Config  , and then click RUN  to load the configuration values.
  9. Scroll down to "tow Package" and select "TESLA_REV1" from the drop-down menu.
    NOTE: Although the selections in the Configuration Dashboard may suggest to select "TESLA_REV2", do not use this selection from the drop-down menu. Selecting "TESLA_REV2" for now will set the alert "VCLEFT_a318_trailerIncorrectConfig", until this issue is fixed.
  10. Select Apply Changes  , and then click RUN  to save the updated configuration.
  11. Disconnect the laptop from the vehicle. See TOOLBOX 3 - CONNECT AND DISCONNECT .
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