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Home >> Tesla >> 2019 >> Model 3 Performance >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Mirrors >> Exterior Fittings -- Model 3 >> Trailer Hitch >> Assembly - Trailer Hitch - Remove and Replace >> Install

Assembly - Trailer Hitch - Remove and Replace: Install

  1. With the help of an assistant, install the trailer hitch assembly over the studs on the body.
  2. Install the nuts (x6) that attach the trailer hitch assembly to the studs on the body.

    60 N.m (44.2 ft-lbs) 

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

    G14739979Courtesy of TESLA, INC.
  3. Maneuver the trailer hitch jumper harness through the opening in the bracket on the trailer hitch assembly, and then install the jumper harness to the bracket so that the holes align and the protective cover pivots to the LH side.
    G14739980Courtesy of TESLA, INC.
  4. Install the screws (x3) and nuts (x3) that attach the jumper harness to the bracket.

    2.5 N.m (1.8 ft-lbs) 

    NOTE: The bolts are inserted from the bottom, and the nuts are on top.
    G14739981Courtesy of TESLA, INC.
  5. Fasten the fir tree clip that attaches the trailer hitch jumper harness to the trailer hitch assembly.
    G14739982Courtesy of TESLA, INC.
  6. Inspect the base of the stud on the trailer hitch assembly for a beveled shoulder or epoxy washer:
    • If the stud has an epoxy washer or the base of the stud has a shoulder that is greater than 0.8 mm, continue to the next step.
    • If the stud does not have an epoxy washer and the base of the stud has a shoulder that is 0.8 mm or less, place an epoxy washer (1016456-00-B or later) onto the stud before installing the ECU.
    CAUTION: Installing the ECU onto a stud that does not have a washer or a shoulder that is greater than 0.8 mm may result in damage to the ECU when tightening the nut.
    G14739983Courtesy of TESLA, INC.
  7. Install the trailer hitch ECU onto the stud of the trailer hitch assembly, and then install the nut that attaches the ECU to the hitch assembly.

    6 N.m (4.4 ft-lbs) 

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

    • 10 mm deep socket
    • 1/4 in std ratchet
    • 1/4 in torque wrench (installation only)
    G14739984Courtesy of TESLA, INC.
  8. Connect the trailer hitch jumper harness and body electrical harness to the trailer hitch ECU connectors.
    G14739985Courtesy of TESLA, INC.
  9. Instal the center rear bracket to the body, and then install the bolts (x5) that attach the bracket to the body.

    4 N.m (2.9 ft-lbs) 

    G14739986Courtesy of TESLA, INC.
  10. Fasten the clips that attach the electrical harnesses to the center rear bracket assembly.
    G14739987Courtesy of TESLA, INC.
  11. Connect the electrical harness to the rear Bluetooth passive entry antenna connector.
    G14739988Courtesy of TESLA, INC.
  12. Install the rear fascia. See FASCIA - REAR (REMOVE AND INSTALL) .