Installation Instructions for Tesla Model 3 (2017-Present)

Part Numbers:

• 25005
• 78298
• CQT25005

Tools Required:

• Safety Glasses
• Ratchet
• Torque Wrench
• Sockets: 8mm, 10mm, 15mm
• 6" Socket Extension
• Plastic Trim Tools
• Flat Head Screwdriver
• Star Drivers (T25)

Weight Capacities:

• Weight Carrying:
  • Max Gross Trailer Weight: 2,000 lbs (907 kg)
  • Max Tongue Weight: 200 lbs (91 kg)
• Weight Distributing:
  • Not Applicable

Installation Time:

• Estimated: 120 minutes

Step-by-Step Instructions:

1. Remove Trunk Side Panels:

• Inside the trunk, use plastic trim tools to open the driver-side panel to access the taillight. Repeat for the passenger side.
• Remove (2) plastic trunk stops on top of the taillights by turning counterclockwise.

2. Remove Taillights:

• Unplug the wiring harness from the taillight inside the trunk.
• Use an 8mm socket to remove (2) nuts securing the taillight.
• Gently remove the taillight and set it aside. Use a 10mm socket to remove (1) additional screw behind the taillight. Repeat for the other side.

3. Loosen Wheel Well Liner:

• Use a flat head screwdriver and T25 bit to separate the driver-side wheel well liner from the rear fascia.
• Remove (3) plastic rivets and (1) Torx screw from the rear wheel fender. Repeat for the passenger side.

4. Loosen Rear Underbody Appearance Panel:

• Disconnect the bottom of the fascia and appearance panel from the vehicle body.
• Use a flat head screwdriver to dislodge (2) plastic covers.
• Remove (7) screws from the panel (some models may have an 8th screw).

5. Remove Rear Bumper Fascia:

• Use plastic trim tools to remove the fascia starting at the outer edges near the wheel wells.
• Gently pull the fascia away and disconnect any wiring harness. Set it aside.

6. Remove Impact Bar Sensor:

• Use a 10mm socket to remove (5) screws from the sensor on top of the impact bar.
• Let the sensor hang down to gain access to the base plates of the impact bar. Save the screws for reinstallation.

7. Remove Impact Bar:

• Use a 15mm socket to remove (6 or 8) nuts securing the impact bar. Save the nuts for hitch installation.
• Remove the impact bar and return it to the vehicle owner.

8. Install Hitch:

• Raise the hitch into position and loosely secure it with the factory nuts.
• Use a torque wrench to tighten all 10mm fasteners to 38 lb-ft (52 N·m).

9. Remove Bottom Panel:

• Use a flat head screwdriver to remove (2) screws and remove the plastic panel for access.

10. Reinstall Components:

• Reinstall the fascia, sensor piece, wiring harness, underbody appearance panel, fasteners, wheel liners, and taillights removed in previous steps.

Safety Notes:

• Regularly inspect the hitch and all fasteners for proper tightness.
• If the hitch is removed, plug all holes in the trunk pan or body panels to prevent water or exhaust fume entry.
• Replace any damaged hitch or ball immediately.
• Always wear safety glasses and observe safety precautions when working beneath a vehicle.
• Do not cut access or attachment holes with a torch.

Specifications:

• Hitch Type: Class I
• Compliance: This product meets safety specifications and requirements per V.E.S.C. Regulation V-5 and SAE J684.

Note: Always adhere to the vehicle manufacturer’s weight rating or the hitch’s maximum load rating, whichever is lower.

Installation Instructions for Modulite® HD Protector Vehicle Wiring

Part Number:

• 119148

Tools Required:

• Phillips Head #2 Screwdriver
• Wire Cutters
• Wire Strippers/Wire Crimpers
• Tester or Volt Meter
• Socket & Ratchet Set
• Drill with 3/32” Drill Bit
• Double-Sided Tape

Step-by-Step Instructions:

Tow Vehicle Inputs - Determination:

1. Disconnect and isolate the vehicle's negative battery terminal.
   • Warning: Read and follow all warnings and instructions on the tow vehicle's battery.
2. Splice the tow harness input wires to the vehicle as determined.
   • Caution: Use appropriate gauge wire splices. Blue taps are for 16-18 gauge wires only.

Harness Installation:

1. Determine the mounting location of the module and secure it using the double-sided tape provided.
   • Warning: Mount the module with the epoxy side pointed towards the ground to prevent water buildup.
2. Locate a suitable grounding point near the module, such as an existing ground stud, or drill a 3/32” hole to secure the white wire using the provided eyelet and screw.
   • Caution: Verify what is behind any surface before drilling to avoid damage or personal injury.
3. Route the power wire to the vehicle’s positive battery terminal. Use the provided fuse holder, butt connector, and ring terminal to connect to the battery.
   • Do not insert the 15 amp fuse yet.
   • Caution: Ensure the module is connected to a constant power source and avoid routing the wire near hot pipes, heat shields, fuel tanks, or pinch points.

Completion:

1. Secure the harness with cable ties provided to prevent damage or rattling.
2. Reconnect the vehicle's negative battery cable.
3. Insert the 15 amp fuse into the fuse holder and close the cap.
4. Test the installation using a test light or trailer. Check each function independently and in combination.

Hardware List:

• 8 × Cable Ties, 8.5”
• 1 × 15 AMP Fuse
• 2 × Ring Terminals
• 1 × Fuse Holder
• 2 × Yellow Butt Connectors
• 1 × Self-Tapping Screw
• 4 × Blue Taps
• 1 × Spade Terminal

Wiring Outputs:

• White Wire: Ground
• Brown Wire: Tail
• Yellow Wire: Left Turn/Brake
• Green Wire: Right Turn/Brake
• Red Wire: Stop (for 3-wire systems only)

Safety Notes:

• Always read and follow all warnings and instructions included with the product and the vehicle's manual.
• Do not exceed the manufacturer’s towing capacity or the product’s amperage ratings.
• Wear safety glasses and use all necessary safety precautions during installation.

Troubleshooting Guide:

• 4-Flat Not Functioning: Ensure input wires are correctly installed and repeat testing after removing the 15 amp fuse for 10 seconds.
• No Power to 4-Flat: Check the chassis ground and ensure the module is properly connected to a constant power source.

Specifications:

• Installation Time: Approximately 45 minutes
• Compatibility: Does not work with multiplex vehicles (BM, BT, or BTT). Use part numbers 119190 or 119250 for these systems.

Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.

For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.

For warranty information, please download the full installation PDF.