Installation Instructions for Lexus RX300 and Toyota Highlander

Part Numbers:

• 41541
• 78229 (U-Haul)

Wiring Access Location:

• SUV1, SUV2

Tools Required:

• Wrenches: 14 mm, 17 mm
• Drill Bits: None

Step-by-Step Instructions:

1. Remove Tow Hooks:

   • Remove the tow hooks from the frame rails and return them to the vehicle owner.

2. Remove Plastic Caps:

   • Remove the plastic caps from the forward attaching holes in the frame rails.

3. Position Hitch:

   • Raise the hitch into position and align it with the existing weldnuts in the frame rails.

4. Install Fasteners:

   • Secure the hitch using the provided M10 x 1.25 x 30 mm CL10.9 hex bolts and conical toothed washers (teeth side against the hitch).
   • Tighten all M10 x 1.25 CL10.9 fasteners to 42 lb-ft (57 N*m) using a torque wrench.

Hardware List:

• (6) Hex Bolt M10 x 1.25 x 30 mm CL10.9
• (6) Conical Toothed Washer 3/8"

Specifications:

• Weight Carrying Capacity:
  • Max Trailer Weight: 3,500 lbs (1,589 kg)
  • Max Tongue Weight: 350 lbs (159 kg)
• Weight Distributing Capacity:
  • Not applicable. Do not use with spring bars.

Safety Notes:

• Check the hitch frequently to ensure all fasteners and the ball are properly tightened.
• If the hitch is removed, plug all holes in the trunk pan or other body panels to prevent water or exhaust fumes from entering.
• Replace any damaged hitch or ball immediately.
• Observe safety precautions when working beneath the vehicle and wear eye protection.
• Do not cut access or attachment holes with a torch.

Compliance:

This product complies with safety specifications and requirements for connecting devices and towing systems in the state of New York, V.E.S.C. Regulation V-5, and SAE J684.

Additional Notes:

• Installation time for professional installers is approximately 20 minutes.
• For more information, refer to the detailed instructions in the manual.

Installation Instructions for T-Connector Adapter

Part Numbers:

• 118413

Wiring Access Location:

• Rear taillight assemblies and cargo area.

Tools Required:

• 8mm, 10mm, and 13mm socket and ratchet or wrench.
• Test probe.
• Trim panel remover.

Step-by-Step Instructions:

1. Highlander:

   • Open the rear tailgate.
   • Remove the access panel on the driver’s side to locate the rear of the taillight (Fig. d). Repeat on the passenger side.
   • Remove the threshold, trunk floor panels, and trays (Fig. e). Set all items aside carefully to avoid damage.

   Azera:

   • Open the trunk and remove the threshold panel.
   • Partially remove the felt trunk liner on the driver’s side to expose the taillight wiring (Fig. j).

2. Locate the vehicle’s taillight wiring harness on both sides.

   • The harness will have a connection point matching the ends of the T-Connector.
   • Separate the connectors carefully to avoid damaging the locking tabs.
   • Ensure all connector surfaces are clean and free of dirt (Fig. f & j).

3. Insert the T-Connector with the yellow wire between the vehicle wiring connectors on the driver’s side.

   • Ensure the connectors are fully inserted and locked in place (Fig. g & j).

4. Route the T-Connector end with the green wire to the passenger’s side.

   • Repeat step 3 on the passenger’s side.

5. Locate the existing ground stud.

   • Loosen the bolt, place the screw eyelet on the stud, and retighten the bolt (Fig. h & j).

6. Mount the T-Connector black box using the provided double-sided tape.

   • Secure the remaining T-Connector harness with the provided cable ties.
   • Ensure wires are not pinched or cut to prevent damage or rattling (Fig. i & j).

7. Reposition and reattach all removed panels, trays, and the threshold.

8. Test the installation with a test light or trailer.

   • Specifications:
     • Max. stop/turn light: 1 per side (2.1 amps).
     • Max. tail lights: (4.2 amps).

Hardware List:

• T-Connector adapter.
• Cable ties.
• Double-sided tape.

Safety Notes:

• Ensure all connections are complete for proper functionality.
• Overloading the circuit can cause fires. Do not exceed the towing manufacturer’s rating or the unit specifications.
• Store the 4-flat connector in the trunk or cargo area when not in use.

Manufacturer Notes:

• Follow all vehicle warnings and installation instructions.
• Use a test light or trailer to confirm proper installation.
• Refer to the vehicle owner’s manual and instruction sheet for additional information.