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Recommended Flat Tow Wiring for 2018 Jeep Grand Cherokee Instead of Mopar Harness


I just purchased 2018 Grand Cherokee Trailhawk model to flat tow. Does it require the Mopar EPS wiring kit? Thanks


Expert Reply:

If you are referring to the Mopar harness that fixes the steering stability issue, then it was resolved by Jeep starting with the 2018 models so you won't require it.

For lighting, you can use a Mopar wiring kit if desired, but there are other options that will work well for your 2018 Jeep Grand Cherokee. I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 which splices into your factory wiring while protecting it from overload. I also recommend adding the Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25 to keep your battery charged while towing.

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