Installation Instructions for Toyota Sienna
(2011 and Newer Models)

Part Numbers:

• 75237
• 87698
• 44786
• 78270 (U-Haul)

Tools Required:

• Wrenches: 19mm
• Torque Wrench
• Drill Bits: None

Wiring Access Location:

• SUV1, SUV2

Step-by-Step Instructions:

1. Appearance Panel Removal:

   • If the vehicle is equipped with an appearance panel covering the trunk pan, remove it.
   • Decide with the vehicle owner whether the panel will be trimmed or left off entirely after installation. (Refer to Figure 2 for the area to be trimmed.)

2. Lower the Exhaust:

   • Detach the exhaust from the rubber isolator to lower it.

3. Raise Hitch Into Position:

   • Lift the hitch into place and install M12 hex bolts, lock washers, and flat washers into the existing weldnuts in the frame as shown in Figure 1.

4. Reinstall the Exhaust:

   • Raise the exhaust back into position and reattach it to the rubber isolator.

5. Reinstall or Return Appearance Panel:

   • If trimmed, reinstall the appearance panel. If untrimmed, return it to the vehicle owner.

Hardware List:

• (6) M12 x 1.25 x 40mm Hex Bolts
• (6) 1/2" Lock Washers
• (6) 1/2" Flat Washers

Torque Specifications:

• Tighten all M12 CL10.9 fasteners to 75 lb-ft (102 N·m) using a torque wrench.

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 body panels to prevent water and exhaust fumes from entering.
• Replace any damaged hitch or ball immediately.
• Follow all safety precautions when working beneath the vehicle, and wear eye protection.
• Do not cut access or attachment holes with a torch.

Specifications:

• Hitch Type and Weight Ratings:
  • Weight Carrying (Ball Mount): Max Trailer Weight 4,500 lbs (2,043 kg), Max Tongue Weight 675 lbs (306 kg).
  • Weight Distributing: Max Trailer Weight 5,000 lbs (2,270 kg), Max Tongue Weight 675 lbs (306 kg).
• Complies with safety specifications and requirements for connecting devices and towing systems of the State of New York, V.E.S.C. Regulation V-5, and SAE J684.

Installation Instructions for Toyota Sienna
(2011 and Newer Models)

Part Numbers:

• 75237
• 87698
• 44786
• 78270 (U-Haul)

Tools Required:

• Wrenches: 19mm
• Torque Wrench
• Drill Bits: None

Wiring Access Location:

• SUV1, SUV2

Step-by-Step Instructions:

1. Appearance Panel Removal:

   • If the vehicle is equipped with an appearance panel covering the trunk pan, remove it.
   • Decide with the vehicle owner whether the panel will be trimmed or left off entirely after installation. (Refer to Figure 2 for the area to be trimmed.)

2. Lower the Exhaust:

   • Detach the exhaust from the rubber isolator to lower it.

3. Raise Hitch Into Position:

   • Lift the hitch into place and install M12 hex bolts, lock washers, and flat washers into the existing weldnuts in the frame as shown in Figure 1.

4. Reinstall the Exhaust:

   • Raise the exhaust back into position and reattach it to the rubber isolator.

5. Reinstall or Return Appearance Panel:

   • If trimmed, reinstall the appearance panel. If untrimmed, return it to the vehicle owner.

Hardware List:

• (6) M12 x 1.25 x 40mm Hex Bolts
• (6) 1/2" Lock Washers
• (6) 1/2" Flat Washers

Torque Specifications:

• Tighten all M12 CL10.9 fasteners to 75 lb-ft (102 N·m) using a torque wrench.

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 body panels to prevent water and exhaust fumes from entering.
• Replace any damaged hitch or ball immediately.
• Follow all safety precautions when working beneath the vehicle, and wear eye protection.
• Do not cut access or attachment holes with a torch.

Specifications:

• Hitch Type and Weight Ratings:
  • Weight Carrying (Ball Mount): Max Trailer Weight 4,500 lbs (2,043 kg), Max Tongue Weight 675 lbs (306 kg).
  • Weight Distributing: Max Trailer Weight 5,000 lbs (2,270 kg), Max Tongue Weight 675 lbs (306 kg).
• Complies with safety specifications and requirements for connecting devices and towing systems of the State of New York, V.E.S.C. Regulation V-5, and SAE J684.

Warranty Information:

• For complete warranty instructions, please download the full installation PDF.

Technical Support:

• 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.

Installation Instructions for T-Connector Adapter for Toyota Sienna

Part Numbers:

• 118498

Tools Required:

• 10mm Socket & Ratchet or 10mm Wrench
• 12mm Socket & Ratchet or 12mm Wrench
• Phillips Head Screwdriver
• Test Probe
• Drill (3/32” Drill Bit)
• Wire Crimpers
• Wire Cutters
• Trim Panel Remover

Step-by-Step Instructions:

1. Remove the Taillight Assemblies:

   • Open the rear tailgate and remove two bolts securing each taillight.
   • Carefully pry the taillight housings rearward, avoiding damage to the alignment tabs.
   • Repeat for the passenger side.

2. Disconnect the Wiring Harness:

   • Locate the taillight wiring harness on both sides of the vehicle.
   • Separate the connectors, ensuring not to break the locking tabs.
   • Clean the connector surfaces to remove dirt.

3. Remove Interior Panels:

   • Temporarily remove the rear threshold plate by removing the cargo clips.
   • Remove the jack storage compartment door on the passenger side.
   • Carefully pull back the interior trim panels on both sides using a trim panel remover.

4. Mount the Black Box:

   • Locate a suitable mounting location inside the rear quarter panel on the passenger side.
   • Clean the area with a 50/50 water/alcohol solution.
   • Mount the black box using the provided double-sided tape.

5. Connect the Passenger-Side T-Connector:

   • Route the T-Connector ends with green and brown/red wires through the opening on the passenger side.
   • Insert the T-Connector ends between the vehicle wiring connectors and lock them into place.

6. Connect the Driver-Side T-Connector:

   • Route the T-Connector end with the yellow wire to the driver’s side behind the panels and along the threshold.
   • Repeat Step 5 for the driver-side T-Connector with the yellow wire.

7. Ground the White Wire:

   • Locate a suitable grounding point near the connectors.
   • Secure the white wire with the provided ring terminal under an existing screw or by drilling a 3/32” hole.

   Warning:

   • Ensure all other ground connections are secure when removing and reattaching the ground stud.

8. Connect the Power Wire:

   • Disconnect the negative (-) battery cable.
   • Cut the yellow fuse holder wire and attach the ring terminal to the positive (+) battery cable.
   • Connect the other end of the fuse holder to the black 12-gauge wire using the yellow butt connector.

9. Route the Black Wire:

   • Route the black wire through a grommet and along the exterior frame or follow existing wiring along the thresholds into the engine compartment up to the battery.

10. Connect the Power Wire to the Black Box:

    • Connect the other end of the black 12-gauge wire to the red power wire on the T-Connector’s black box using the provided yellow butt connector.

11. Reconnect the Battery:

    • Reconnect the negative (-) battery cable.
    • Insert the 10-amp fuse into the fuse holder.

    Warning:

    • All connections must be complete for the T-Connector to function properly.
    • Test and verify the installation with a test light or trailer.

12. Secure and Reassemble:

    • Secure all loose wires with the provided cable ties.
    • Reinstall the taillight assemblies, panels, and other items removed during installation.

13. Store the 4-Flat Connector:

    • Store the 4-flat connector in the jack storage compartment when not in use.
    • Route the 4-flat harness through the rear tailgate/door seal when in use.

    Specifications:

    • Max. stop/turn light: 1 per side (2.1 amps)
    • Max. tail lights: (5.6 amps)

Safety Notes:

• Overloading circuits can cause fires. Do not exceed the towing manufacturer’s rating or the specified maximum ratings.
• Always follow all safety precautions and use safety glasses during installation.

Manufacturer Notes:

• Refer to the vehicle owner’s manual and instruction sheet for additional details.

Installation Instructions for T-Connector Adapter for Vehicle

Part Numbers:

• 118498

Tools Required:

• 10mm Socket & Ratchet or 10mm Wrench
• 12mm Socket & Ratchet or 12mm Wrench
• Phillips Head Screwdriver
• Test Probe
• Drill (3/32” Drill Bit)
• Wire Crimpers
• Wire Cutters
• Trim Panel Remover

Step-by-Step Instructions:

1. Remove the Taillight Assemblies:

   • Open the rear tailgate and remove two bolts securing each taillight.
   • Carefully pry the taillight housings rearward, avoiding damage to the alignment tabs.
   • Repeat for the passenger side.

2. Disconnect the Wiring Harness:

   • Locate the taillight wiring harness on both sides of the vehicle.
   • Separate the connectors, ensuring not to break the locking tabs.
   • Clean the connector surfaces to remove dirt.

3. Remove Interior Panels:

   • Temporarily remove the rear threshold plate by removing the cargo clips.
   • Remove the jack storage compartment door on the passenger side.
   • Carefully pull back the interior trim panels on both sides using a trim panel remover.

4. Mount the Black Box:

   • Locate a suitable mounting location inside the rear quarter panel on the passenger side.
   • Clean the area with a 50/50 water/alcohol solution.
   • Mount the black box using the provided double-sided tape.

5. Connect the Passenger-Side T-Connector:

   • Route the T-Connector ends with green and brown/red wires through the opening on the passenger side.
   • Insert the T-Connector ends between the vehicle wiring connectors and lock them into place.

6. Connect the Driver-Side T-Connector:

   • Route the T-Connector end with the yellow wire to the driver’s side behind the panels and along the threshold.
   • Repeat Step 5 for the driver-side T-Connector with the yellow wire.

7. Ground the White Wire:

   • Locate a suitable grounding point near the connectors.
   • Secure the white wire with the provided ring terminal under an existing screw or by drilling a 3/32” hole.

   Warning:

   • Ensure all other ground connections are secure when removing and reattaching the ground stud.

8. Connect the Power Wire:

   • Disconnect the negative (-) battery cable.
   • Cut the yellow fuse holder wire and attach the ring terminal to the positive (+) battery cable.
   • Connect the other end of the fuse holder to the black 12-gauge wire using the yellow butt connector.

9. Route the Black Wire:

   • Route the black wire through a grommet and along the exterior frame or follow existing wiring along the thresholds into the engine compartment up to the battery.

10. Connect the Power Wire to the Black Box:

    • Connect the other end of the black 12-gauge wire to the red power wire on the T-Connector’s black box using the provided yellow butt connector.

11. Reconnect the Battery:

    • Reconnect the negative (-) battery cable.
    • Insert the 10-amp fuse into the fuse holder.

    Warning:

    • All connections must be complete for the T-Connector to function properly.
    • Test and verify the installation with a test light or trailer.

12. Secure and Reassemble:

    • Secure all loose wires with the provided cable ties.
    • Reinstall the taillight assemblies, panels, and other items removed during installation.

13. Store the 4-Flat Connector:

    • Store the 4-flat connector in the jack storage compartment when not in use.
    • Route the 4-flat harness through the rear tailgate/door seal when in use.

    Specifications:

    • Max. stop/turn light: 1 per side (2.1 amps)
    • Max. tail lights: (5.6 amps)

Safety Notes:

• Overloading circuits can cause fires. Do not exceed the towing manufacturer’s rating or the specified maximum ratings.
• Always follow all safety precautions and use safety glasses during installation.

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.

Warranty Information:

• This product is covered by a [warranty period]. For complete warranty instructions, please download the full installation PDF.

Technical Support:

• 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.

Manufacturer Notes:

• Refer to the vehicle owner’s manual and instruction sheet for additional details.