Recommended Trailer Wiring Harness for 2020 Lexus RX 350L

Question

Question:

I need the advice on the trailer wiring for 2020 Lexus RX350L

asked by: Phap T

1

Helpful Expert Reply:

In order to add a trailer wiring harness to your 2020 Lexus RX 350L you'll want to use the Curt # C56217.

expert reply by: Erik B

1

Answer 1

Hey Mark, thanks for the details! The Curt T-Connector #C56217 is actually designed for a Toyota Highlander or a newer model RX350 L which is one reason you're struggling to find the right connector on your 2019 Lexus RX350 L. Since your…

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Answer 2

Hey Shane, for your 2020 Lexus RX 350 that didn't have a factory hitch the trailer wiring that you honestly should have gone with is the part #C56217 which is for the versions of the vehicle that don't have the tow package. While your…

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Answer 3

The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package #56083 requires your 2021 Lexus RX 350 to have the factory tow package which includes a factory installed module to power the trailer lights. Since your harness does not have power I…

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Answer 4

I would be happy to help! The Curt T-Connector Vehicle Wiring Harness #C56217 you were looking at installs in your 2021 Lexus RX 350 the exact same way as it would get installed in a Toyota Highlander which is why the instruction manual only shows…

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Answer 5

You are looking for the rear tail light fuse on your 2021 RX 350. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item #C56217 connects in line with your rear tail lights to power your trailer harness. I have attached a…

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Answer 6

I'm not sure what wiring you purchased but if it's anything like the Curt T-Connector #C56217 for a 2021 Lexus RX 350 without the tow package then the system should be working once you get the module and fuse installed. If you aren't…

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Answer 7

I went ahead and did some investigating and it turns out that the reason your Curt T-Connector Vehicle Wiring Harness for Factory Tow Package #56083 is not working is due to the fact that you do not have the factory towing package. Instead,…

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Answer 8

The 10 pin connector you are looking for to install the Curt trailer wiring harness part #C56217 on your 2018 Lexus RX 350L is under the dash and not the rear cargo area you sent in a picture of which is maybe where the confusion stems from. I…

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Answer 9

If your Lexus RX350 already has the tow package which provides the taillight converter that's plugged into the connector located behind the passenger side cargo area bulkhead as shown in the linked instructions, you'll just need the #118252…

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Answer 10

I linked the referenced install video below, but it is on a 2017 RX 350. Unfortunately, we have not done an install on a 2021 as of yet so we do not have any videos of the Curt #C56217 being installed on your year. However, I did find that you may…

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Answer 11

For the Curt T-Connector Vehicle Wiring Harness #C56217 on your 2021 Lexus RX 350L the connectors will be located in a different spot. The 10 pin connector should be located on the passenger side just below the taillight. The 4 pin connector will be…

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Answer 12

We do have a hitch that will fit your 2022 Lexus RX 350 with the Curt #C73DR. This hitch will still allow you to use your liftgate sensor, but you will need to kick to either side of the receiver as opposed to just swiping your foot under the bumper.…

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