Does Installation of Trailer Wiring Harness on 2020 Toyota Highlander Void Vehicle Warranty

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Question:

2020 Toyota Highlander Hybrid Limited Will installing the wiring kit void the warranty? Thank you

asked by: Thomas G

0

Expert Reply:

Good question, and the installation of any aftermarket parts such as a trailer wiring harness will not void the warranty on your 2020 Toyota Highlander Hybrid, or any other vehicle.

The reason for that is because you are protected by what is called the Federal Magnusson-Moss Warranty Act. This act says if something breaks on your vehicle and you take it in for warranty repair, the dealer must honor your warranty unless whatever you have added to your vehicle or its installation actually caused the problem in question.

So you can absolutely install the following wiring harness, and if you need, trailer hitch receiver, on your 2020 Toyota Highlander Hybrid without voiding the warranty:

- Vehicle Wiring Harness # C76CR
- Curt Trailer Hitch Receiver # C99FR

expert reply by: Kyle S

0

Joe S.

5/16/2020

I have a new 2020 Highlander XLE equipped with AWD and the factory hitch and 4 pin plug. However’ I need to tow a Mastercraft boat trailer that has hydraulic breaks. This trailer has a flat 5 pin connector. I need the 5th wire powered from the backup light circuit. Can I pull power from the wiring harness that passes from the lift gate to the body that powers the backup lights in the lift gate?

Chris R.

5/19/2020

The Tow Ready Adapter # 20036 will work perfectly for this application. It will plug right into the existing 4-Way on your Highlander and the additional blue wire is what you'll splice into the reverse circuit wire, which can indeed be found on the factory harness you mentioned on the lift gate.

Joe S.

5/20/2020

@ChrisR My concern is that the 2020 model switched the backup lights to LEDs. They have a much much smaller current draw than the previous incandescent bulbs and I wonder if the extra amps required by the solenoid could disable the lights or blow the fuse. Would it be a better approach to just purchase a 7-pin adapter kit For the 2020 Highlander as if the car did not have the factory wiring with something like a Hopkins 7-5-4 capability connector ?

Joe S.

5/20/2020

@ChrisR My concern is that the 2020 model switched the backup lights to LEDs. They have a much much smaller current draw than the previous incandescent bulbs and I wonder if the extra amps required by the solenoid could disable the lights or blow the fuse. Would it be a better approach to just purchase a 7-pin adapter kit For the 2020 Highlander as if the car did not have the factory wiring with something like a Hopkins 7-5-4 capability connector ?

See All (5) Replies to Joe S. ∨

Fred

5/26/2020

Since most travel trailers today require a seven prong wiring harness what can be done to a doubt the 2020 highlander tow package to a seven prong plug?

Chris R.

5/28/2020

Once the 4-Way harness is installed, you can simply add an adapter like the Tow Ready # 30717 to your Highlander. This will plug into the existing 4-Way to provide a 7-Way at the other end. If signal lights are the only things you need to power on the trailer - the white wire is the only one that needs to be grounded. The remaining blue, black, and yellow wires can just be capped off as they aren't needed. If, however, the trailer is equipped with electric brakes, a better option to upgrade to the needed 7-Way is the Wiring Kit # ETBC7, which includes all the components to make this conversion along with the extra wiring and circuit breakers needed to actually activate those additional circuits. You'd also need a brake controller like the Prodigy P2 # 90885.

Barry S.

7/3/2020

Our 2020 Toyota Highlander has the standard 4 pin connector which needs to be converted to 7 pin. We have a Prodigy RF brake controller on our RV. Which is the best?

Chris R.

7/8/2020

Since the Prodigy RF only needs the 12V circuit activated on the 7-way (and not the brake output circuit) the best option for this conversion is the Wiring Kit # ETBC7L. This includes all the wiring necessary to make this happen.

Answer 1

Hello Royer, Thanks for writing in, we’re glad you found us! The correct wiring harness for your 2020 Toyota Highlander XLE without the factory tow package is the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector #C76CR. Even…

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Answer 2

The 2 easiest ways to tell if your 2020 Toyota Highlander XLE has the factory tow wiring is to either check behind the paneling next to the 3rd row seating on the driver's side to see if a connector is there that the Curt #C56RV module plugs…

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Answer 3

You should still be able to use the liftgate feature on your 2022 Toyota Highlander with the Curt Trailer Hitch Receiver #C99FR (13453) installed. Instead of just swiping your foot under the bumper though you will need to kick to either side of the…

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Answer 4

The best combination for you to carry a lightweight cargo carrier behind your 2020 Toyota Highlander is the Curt Trailer Hitch #C99FR and the 22-1/2x49 Curt Cargo Carrier, Item #C18113. Both of these have a 500 lb tongue weight rating which look to…

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Answer 5

Yes you can access the spare of the 2020 Toyota Highlander with the Curt hitch part #C99FR installed. If you check out the picture I attached you can see that the hitch and the spare installed at same time and there is plenty of clearance. I attached…

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Answer 6

Out of those two hitches, I recommend the Curt Hitch item #C99FR over the item #C45CR for your 2022 Toyota Highlander XLE. The tongue weight capacity for both will easily accommodate a cargo carrier but the item #C99FR has a far better profile once…

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Answer 7

Hey Pam, the Yakima OnRamp bike rack part #Y36FR would be a really great option that covers everything you need. It's RV rated so it can be used in your Class C RV hitch as well as Honda CR-V, it's designed for e-bikes, and also has a ramp…

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Answer 8

Since from what it sounds like, your Highlander doesn't have the factory tow package that includes a 7-way on the rear bumper, you'll need to do a hardwire installation. For starters, you'll need a functional 4 pole trailer wiring…

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Answer 9

First you will need Draw-Tite Max-Frame Trailer Hitch Receiver #75270. This hitch has a maximum tongue weight rating up to 675 lbs and gross trailer weight rating up to 4,500 lbs. If the towing capacity in your Odyssey owner's manual is lower…

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Answer 10

Hello Gregg. Yes, I have a great set up for you. For your 2024 Toyota Grand Highlander the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" #C26VV. This hitch can handle a tongue weight of 500 pounds, and a towing capacity of 5,000…

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Answer 11

The first thing you will need to do to get a 7-way and brake controller installed on your 2022 Toyota Highlander is to get a 4-way connector. The T-One Vehicle Wiring Harness with 4-Pole Flat #TK99FR will be plug directly into existing wiring located…

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Answer 12

We can get you everything you need for towing with your 2017 Toyota Sienna XLE. By plastic shield, I believe you are referring to the appearance panel underneath the Sienna, and that will have to trimmed a bit in each of the hitches available for the…

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Does Installation of Trailer Wiring Harness on 2020 Toyota Highlander Void Vehicle Warranty

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