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Wiring Harness for 2023 Jeep Grand Cherokee Altitude Towing Trailer  

Updated 11/03/2025 | Published 01/02/2025

Question:

Which wire harness for a 2023 Jeep Grand Cherokee Altitude to tow a trailer? I do not need brakes.

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Expert Reply:

Hello Kenneth; since it sounds like you don't have the factory tow package you need the Curt T-Connector Vehicle Wiring Harness # C27BR. This plugs into the connection points behind your rear tail lights and will give you a 4-way to power your trailer's signal lights. If you don't already have one, you will also need a hitch like the # DT42GR and ball mount # C45534 for towing.

expert reply by:
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Robin H
Curt 4-Way On 2023 Jeep Grand Cherokee
Curt 4-Way On 2023 Jeep Grand Cherokee
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Robin H.

11/3/2025

Hey Kenneth, how did the Curt wiring harness work out on your Grand Cherokee for powering the trailer lights? Your update could make it easier for the next person setting up a similar tow setup.

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