I also have the SMI Stay and Play in my 2015 Wrangler. It worked great with my previous gas powered motorhome, no real complaints. I recently upgraded to a 2015 Fleetwood Excursion, Diesel Pusher with an Exhaust Brake. I have to leave my Stay and Play turned off as it is activated by the brake lights. The Brake Light comes on anytime the Exhaust Brake is activated. I have overheated the brakes on my Jeep as there seems to be no simple solution to deactivate the Exhaust Brake Light. There have been a few offers to do some "creative" wiring, but I am afraid that could effect my warrantee. My Jeep will usually get me out from between a rock and a hard place... but not in this case. If you have an air brake system, there are several systems that are better suited than the SMI Stay and Play. JH