2025-02-20

Assembly - Trailer Hitch (Retrofit)

Correction code 12300206 0.96 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so.NOTE: See Flat Rate Times to learn more about FRTs and how they are created. To provide feedback on FRT values, email LaborTimeFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure.

  • 2025-02-20: Released new procedure.

Torque Specifications

Table 1. Torque Specifications: Assembly - Trailer Hitch (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Trailer hitch assembly to body studs
62.5 Nm (46.1 lbs-ft)
  • 15 mm, 6-point deep socket
  • 6 in extension
 Reuse

Install

Informational PurposesAn informational icon, calling your attention
Note
Model Y vehicles built with certain LH Body Controllers (see below for details) do not have the required trailer controller hardware for powering and controlling the trailer lights and aux functionality. If the vehicle is built with one of these controllers, the controller must be replaced. See Module - Body Controller - LH (LHD) (Remove and Replace)
  • 1497847-20-D (7 Seater)
  • 1497847-30-D (5 Seater)
  • 1497847-39-D (5 Seater)
Add the correction code for the body controller replacement as an additional activity.
  1. Maneuver the trailer hitch assembly in place so that the holes are placed over the studs on the body of the vehicle.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Recommend assistance when performing this step.
  2. Install the LH nuts (x3) and RH nuts (x3) that attach the trailer hitch assembly to the studs on the body of the vehicle.
    62.5 Nm (46.1 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 15 mm, 6-point deep socket
    • 6 in extension
  3. Install the rear center bracket. See Bracket - Rear - Center (Remove and Replace).
  4. For Europe and Taiwan (ECE trailer sockets) only: drill a 6 mm drain hole at the lowest point of the trailer socket, at the hinge side of the socket.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    To prevent damage to the wires and pins inside the socket, carefully drill only through the plastic housing.
    Informational PurposesAn informational icon, calling your attention
    Note
    This drill hole is required to prevent corrosion in the event of water ingress.
  5. Remove the white cap from the rear body harness connector.
  6. Remove the tape that attaches the trailer hitch harness to the trailer hitch beam.
  7. Inspect the trailer hitch harness connector (X046) to determine if it's a 16 pin or 9 pin connector. This information will be used later in the procedure.
    Figure 1. 16 pin MOLEX connector
    Figure 2. 9 pin MOLEX connector
  8. Connect the trailer hitch assembly electrical connector.
  9. Install the rear fascia. See Fascia - Rear (Remove and Install).
  10. Enable Service Mode Plus. See Service Mode Plus.
  11. On the vehicle touchscreen, touch Service Mode Plus > Low Voltage > Accessories > Tow Package.
  12. From the towPackage menu, select one of the following:
    • REV1 for vehicles with a 16 pin trailer hitch harness connector, as determined in step 7.
    • REV2 for vehicles with a 9 pin trailer hitch harness connector, as determined in step 7.
    Informational PurposesAn informational icon, calling your attention
    Note
    On vehicles with 16 pin connector X046, the trailer connector is powered directly from the left body controller. On vehicles with the 9 pin connector X046, the trailer connector is powered by a separate trailer ECU.
    Informational PurposesAn informational icon, calling your attention
    Note
    Vehicles with a lithium-ion low voltage battery and REV1 trailer hardware do not have auxiliary power on the trailer connector. Determine the low voltage battery type by touching Controls > Software > Additional Vehicle Information.
  13. Exit Service Mode Plus. See Service Mode Plus.
  14. Reinstall the vehicle software. See Software Reinstall - Touchscreen.
  15. Use a trailer light tester to test the trailer light connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use a trailer light kit, bike rack, or other equipment as an alternative testing method if no trailer light tester is available.