Is Roadmaster Brake-Lite Relay Needed for Flat Towing 2020 Jeep Wrangler with Push Button Start

Question

Question:

I watched the video for the key switch ignition and all makes sense. I have a 2020 Jeep Wrangler Unlimited with a push button start and am not sure how to hook up the blue wire from the relay switch. Please advise.

asked by: Carl

0

Expert Reply:

The Roadmaster Brake-Lite Relay # 88400 that you referenced actually isn't needed for your 2020 Jeep Wrangler Unlimited with the push button start. In order to ensure proper operation of the signal lights and braking system you instead need the Stop Light Switch Kit # RM-751490.

I have attached the written installation manual below along with an install video that you can follow along with.

expert reply by: Chris R

0

Carolyn P.

2/17/2020

The tow instructions do not end with turn the engine off. I assume we turn engine completely off after shifting transmission into park?

Jason S.

2/18/2020

I looked up your owners manual online for your 2020 Jeep Wrangler and on page 417 they do have you turn the engine off at step 10. This is the second time as they also have you do that at step 4. You don't shift into park until step 12 once you have already confirmed that the transfer case is in true neutral. I recommend looking at that page again and taking it slowly step by step.

Answer 1

Technically Hopkins wiring harness #HM56200 is a 4-diode system but it uses a converter box instead of separate diodes. So if you are looking at supplemental braking systems you are going to need to use the brake light relay #RM-88400 to prevent the…

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Answer 2

If only the running lights are having an issue on the trailer I recommend first checking the trailer connector on the back of your Wrangler to see if the issue is with the Jeep and the diode kit #RM-15267 you installed. You can turn on the running…

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Answer 3

Hey Dan, We can get your 2024 GMC Canyon AT4 set up to be flat towed behind your Fleetwood motorhome, and the best parts are going to be from Roadmaster because of their reliability and quality. There's going to be a lot of parts needed for your…

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Answer 4

Each of the base plates that fit your 2020 Jeep Wrangler Unlimited (with factory steel bumper) do require the altering or even replacement of the skid plate (also sometimes called a rock guard). The base plate kit I recommend because it will allow…

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Answer 5

In order to flat-tow a 2021 Jeep Wrangler JL you'll need a base plate kit, tow bar, safety cables, wiring harness, supplemental braking system, and possibly a few other smaller items. I have attached my recommendations for each of these below…

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Answer 6

The Adapter for Jeep D-Ring Bumper Mounts part #RM-035 is a great option for flat-towing a 2021 Jeep Wrangler with aftermarket front bumper. It can be used with any motorhome mounted Roadmaster tow bar for which I recommend the Roadmaster Nighthawk…

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Answer 7

For your 2021 Jeep Wrangler Rubicon I recommend the Roadmaster Direct-Connect Base Plate Item #RM-521453-5. This baseplate has removable arms which once removed, help the vehicle maintain a nice clean look. It installs on the chassis of the vehicle…

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Answer 8

For your 2018 Jeep Wrangler Unlimited Sahara JL flat tow wiring, you will need the Roadmaster Stop Light Switch Kit #RM-751490 which will communicate with your motorhome's brake monitoring system that your Jeep brakes are being applied. This is…

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Answer 9

Hey Joe, I attached a picture below that shows the full instructions I got for the Blue Ox wiring kit part #BX88285 that you referenced. Let me know if you think you could pull off the install.

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Answer 10

Yes, I will be happy to tell you what you will need to flat tow your 2007 Honda CR-V behind your motorhome. There are 5 major components needed: base plates, tow bar, safety cables, lighting, and supplemental braking. For base plates I recommend…

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Answer 11

To determine if you need the Roadmaster Brake Lite Relay part #RM-88400 you'll need to first put your 2020 Jeep Wrangler in ignition position that it needs to be in when towing (check owners manual) and then check to see if the brake lights of…

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Answer 12

Hey Cliff, yes good catch! Your 2024 Jeep Wrangler does need a diode part #RM-790 when installing the Brake Lite Relay #RM-88400 since the vehicle has a push button start.

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Is Roadmaster Brake-Lite Relay Needed for Flat Towing 2020 Jeep Wrangler with Push Button Start

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