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Switch Kit Needed To Send Braking Signal When Flat Towing A 2018 Jeep Wrangler JL With InvisiBrake  


I have a 2019 Holiday Rambler Vacationer built on the Ford F53 chassis. I do have the factory trailer brake wiring and have wired the Brake Monitor light in the motorhome and on my 2018 Wrangler JL as instructed and my Monitor light does not light up. Any help would be appreciated. Thank you,


Helpful Expert Reply:

The reason you're not getting a signal from your 2018 Jeep Wrangler JL to your Roadmaster InvisiBrake Supplemental Braking System # RM-8700 monitor in your 2019 Holiday Rambler Vacationer is because the OEM switch isn't compatible and will instead require the Roadmaster Stop Light Switch Kit # RM-751490 to send the signal.

Once installed this kit allows your RV's monitoring system to alert you whenever the brake pedal of your towed car is being applied. Other systems operate according to whether the air cylinder is extended and provide no indication of what is happening with the pedal itself. If your supplemental braking system is improperly installed, it may be continuously pressing on the pedal, impeding it from fully retracting and possibly causing damage to your vehicle's tires and braking system. With Roadmaster's Stop Light Switch Kit, you will always know when the brake is being depressed, and you will avoid costly damage.

I've attached a video to assist with the installation of this stop light switch kit in your 2018 Jeep Wrangler JL.

expert reply by:
Kevin C

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