I have had the Roadmaster InvisiBrake installed in my just purchased 2017 Jeep Grand Cherokee LTD. I had a RV repair facility in North Jersey. that installed it supply a battery charge line for the Jeep. I needed the RV coach running lights or headlights on for the brake to work. When I made a slow right and /or left turn I experienced the wobble and it stopped when I applied the brake. Thank God they were slow turns make from a stop light.Then about 10 or 15 minutes later the InvisiBrake failed to respond, I stopped and checked the connections and they were intact. I reset the Jeep and continued on my trip and again after 10 or 15 minutes the Invisibrake failed to respond. This continued to happen until we arrived home.
I dropped the RV and the Jeep back to the shop and after a day of testing they had to order a Roadmaster stop light switch (Roadmaster part number751449)cost $59.50. they said that Jeep Grand Cherikees with push button ignition instead of a turnkey ignition after a period of time shuts all the power off in the jeep thereby shutting off the InvisiBrake system. After a day they received the part and two more hour worth of installing and testing it now works fine. I was not able to find any documentation by Jeep or Rooadmaster of the need for this Roadmaster stop light switch. My Jeep dealer could not find and information about the wiring harness.
Lenny Hennig Teaneck New Jersey
2014 Thor Tuscany 45MT
450 Cummins, Freightliner Chassis
2017 jeep Grand Cherokee LTD