How to Add a Trailer Connector to a 2018 Jeep Grand Cherokee

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Question:

do all 2018 grand Cherokees have the rear plug in the bumper for wiring the trailer?

asked by: George

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Expert Reply:

I do not believe all 2018 Jeep Grand Cherokees came with a factory trailer connector. In order to add one you will want to first look under the vehicle's rear bumper near the spare tire for a USCAR car plug which I have attached a photo of for you. The plug may be taped to an existing wiring harness. If you have this plug then you can use part # C55384 to add a 4-way trailer connector or part # C55774 to add a 4 and 7-way trailer connector. I have attached install videos of both harnesses for you which shows what the plug looks like and where to look.

If you do not have the USCAR plug then in order to add a 4-way trailer connector you will want to use the T-One Vehicle Wiring Harness part # 118727 which like the other two harnesses is also a plug and play option. However, in order to add a 7-way trailer connector to a vehicle without the USCAR plug you will still need the above 4-way but you will also need the Universal 7-Way Install Kit part # ETBC7 which will require hardwiring.

If your trailer has brakes and you need a brake controller then I recommend the Tekonsha Prodigy P3 Trailer Brake Controller part # 90195 as this is one of our best selling brake controllers because it has integrated safeguard to protect both the vehicle/trailer and it runs continuous diagnostic checks for safety. If you have the USCAR plug then you can use the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers part # TK93VR to install the controller but if not you will need to hardwire it.

Please keep in mind that if you do have the USCAR plug it may also be necessary to see a local Jeep dealer to activate the tow package wiring circuit.

expert reply by: Conner L

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Answer 1

To give yourself a complete tow package for your 2020 Jeep Grand Cherokee Altitude you will need a hitch, wiring and a ball mount. I would recommend the Draw-Tite #75699 as your hitch receiver since it has a more concealed design and the tube…

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Answer 2

Your best route is to replace your entire surge brake assembly as Atwood no longer produces any parts for their brake actuators. The Titan Zinc-Plated Brake Actuator #T47457207K is going to be your best replacement available. It is specific to disc…

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Answer 3

If your 2018 Jeep Grand Cherokee has the factory tow package and you are using the Curt T-Connector Vehicle Wiring Harnesse #C55774 you will need to go to your local Jeep dealer and have them re-flash your Jeep's computer in order to activate the…

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Answer 4

I spoke with my contact at Curt and he said if you have installed the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector #C55515, you will not need to do anything with the fuses to enable the trailer…

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Answer 5

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 6

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 7

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 8

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 9

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 10

When it comes to choosing between the Blue Ox Patriot #BLU37TR and the Brake Buddy Select 3 #HM39524, these systems are extremely similar in their setup and functionality. Both of these systems provide proportional braking in a compact and easy to…

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Answer 11

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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Answer 12

Class I and Class II hitches both have a 1-1/4 inch receiver opening. The difference is that a Class I hitch has a lower tongue weight rating, usually 200 pounds and a lower towing rating, usually 2,000 pounds. A Class II hitch usually has a tongue…

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How to Add a Trailer Connector to a 2018 Jeep Grand Cherokee

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