Removing the Protective Cap on a 2010 Lexus RX 450h to Install a Trailer Wiring Harness

Question

Question:

Can you tell me how to remove the gray plastic cover from the socket on my Lexus RX 450h? I ordered the harness from you and will be here tomorrow.

asked by: John B

0

Expert Reply:

On the protective cap covering the connection point for trailer wiring on the 2010 Lexus RX 450h, there will be a locking tab on one side. You will need to push in the locking tab with your thumb and at the same time pull the cap off. When you go to connect harness # 118252 the locking tab on it will snap into place on the factory connector. I have included a link to the installation instructions for you.

expert reply by: Michael H

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Answer 1

To install the Tow Ready T-One Vehicle Wiring Harness 4-pole #118255 on a your 2012 Lexus RX 450H, the white plug that has a small black box attached to it plugs in to the vehicle wiring harness. This attachment point is located in the rear cargo…

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Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 3

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 4

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 5

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

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Answer 6

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 7

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Answer 8

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Answer 9

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 10

Hey Kelvin, welcome back. To flat tow a 2026 Ford Maverick with your Demco Commander II Tow Bar item #DM9511012, I recommend the following parts: Baseplate Kit - Demco Tabless Base Plate Kit item #DM38CV Wiring Harness - Roadmaster Diode 7-Wire to…

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Answer 11

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 12

The main difference between the Curt Trailer Hitch Receiver part #C13416 and the EcoHitch Hidden Trailer Hitch Receiver part #EH97FR is that the EcoHitch has a completely hidden cross tube whereas the Curt cross tube will be visible from the rear of…

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Removing the Protective Cap on a 2010 Lexus RX 450h to Install a Trailer Wiring Harness

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