Easy Way to Disconnect Battery When Flat Towing a 2020 Jeep Grand Cherokee Trailhawk

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Question:

Saw your post on flat towing a 2019 but I just bought a 2020 and no one at my local Jeep dealer has a clue how to do this. It tells me to disconnect the negative battery cable as well as do about fifteen steps to put in neutral. Is it really necessary to battery and if you do, won’t I have to reset everything in Jeep every time I do this? Also, if that is true, is there a way to install a negative battery cut off switch as it is almost impossible to easily get to battery? Any help appreciated as Jeep impossible to deal with!

asked by: Jim

1

Helpful Expert Reply:

We have to recommend you stick with what the manufacturer recommends for flat towing your 2020 Jeep Grand Cherokee. Otherwise you run the very high risk of damaging the vehicle when flat towing it. Disconnecting the battery will reset your stereo presets, but it's better than having to have the transmission rebuilt.

We do have the automatic battery disconnect kit part # RM-766 which will even put a maintenance charge on the towed vehicle battery as you are travelling. This would be your easiest solution to disconnect the battery and keep it charged.

expert reply by: Jameson C

1

Jim L.

8/8/2020

If I disconnect the battery to flat tow my grand cherokee... what will power my brake buddy?

Reply

Jon G.

8/18/2020

If you're using a braking system that draws power from the towed vehicle battery (your Jeep Grand Cherokee) then you're going to want to install the Battery Charge Line Kit # RM-156-25 so that your motorhome battery bank can help keep your Jeep battery from getting completely drained. This would be the case whether you had to disconnect the battery or not. Be sure to reference your copy of the owner's manual for flat towing.

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Answer 1

While there is one hitch for your 2021 Jeep Cherokee Trailhawk that exits through the bumper, the #e73ZR does not, as the receiver will be below the bumper of your Jeep. The only option for a hitch that protrudes the bumper of your Cherokee Trailhawk…

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Answer 2

The first thing you'll need to flat tow your 2020 Jeep Cherokee Trailhawk is a base plate kit confirmed as a fit for your vehicle. For that I recommend the Roadmaster Direct Connect kit part #RM-521451-5 as it's easy to connect to and also…

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Answer 3

I am happy to help you with the components needed to flat tow a 2020 Jeep Cherokee Trailhawk. A complete flat tow system includes a base plate, tow bar, tow bar wiring, safety cables, braking system and possibly a high low adapter. For the base…

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Answer 4

If you were to go with the either the Custer Wireless LED Tow Bar Light 4-Way #LIW-LDTL or 7-Way #LIW-LDTL-7B I recommend getting 2 of these. That will allow you to have one in the cab charging while using the other one. As they have an expected…

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Answer 5

We have everything needed to flat tow your new 2020 Jeep Cherokee Trailhawk behind your RV with all 4 wheels on the ground. You are going to need a base plate kit, a tow bar, safety cables, a lighting solution, and a supplemental braking system to…

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Answer 6

Absolutely! In order to flat tow your 2020 Jeep Cherokee Trailhawk behind a motorhome you will need a base plate kit, a tow bar, safety cables, a lighting solution, a supplemental braking system, and most likely a high-low adapter. I will quickly…

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Answer 7

The part you are referring to (Mopar's 68321424AB) was indeed a fix for certain models and years of Jeep Cherokee that were experiencing the dreaded "death wobble", but your 2021 Jeep Cherokee Trailhawk does not fall under these years.…

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Answer 8

On the trailer side of wiring the stop signal is connected to both the left and right turn signals. Because your turn signals are working I don't believe that the problem is the Hopkins Adapter 7 Pole to 4 Pole with Tester and Cover #47345. The…

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Answer 9

GM states in the owner's manual that to recreationally tow the vehicle, the negative battery cable must be disconnected. The owner's manual doesn't list a specific reason, it only states that failure to do so could damage the vehicle. The…

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Answer 10

For your 2019 Jeep Cherokee you'll need to first start with a base plate kit. For that you'd want the part #RM-521452-4. This fits the Latitude, Latitude Plus and Limited models. If you have an Overland, Trailhawk, or Trailhawk Elite…

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Answer 11

I've attached our guide for choosing a high/low adapter for your RV Hitch but for your case I recommend the Curt High-Low Adapter #C27KR. To attach your Curt Rambler Steel Tow Bar #C26FR to your Blue Ox base plates you'll need the Blue Ox…

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Answer 12

I checked the owner's manual for a 2022 Jeep Grand Cherokee WL and there was no mention of the Mopar Flat Tow Wiring Harness therefore this is not required. That said, you will need a base plate kit, safety cables, tow bar, wiring harness, and…

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Easy Way to Disconnect Battery When Flat Towing a 2020 Jeep Grand Cherokee Trailhawk

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