I just bought a 2015 Sahara two door and love it. Special ordered it from the factory to get all the equipment I wanted. I traded in my 2003 TJ--which I also special ordered twelve years ago--primarily because I wanted more comfort on long trips and cold weather amenities such as heated seats and remote start. With only 600 miles on the clock the remote start failed. The engine started normally but then cut out after ten seconds, and the check engine light went on. I immediately made an appointment with the dealer, but in the mean time couldn't resist poking around to find the problem myself. On the Wrangler Forum I learned that I could get the error code for the problem by pressing the ignition key towards the steering column and turning it off and on three times. The error code was P 054C. On the web I found charts showing what the error codes meant, but this one did not appear. I only found out that P meant the problem involved the power train. So I started guessing at what the code meant, starting with the letter C, and thought it might mean "cap" which could refer to the gas cap. Now I am the kind of fanatic that reads the owner's manual cover to cover on line before even purchasing the vehicle, but it wasn't until then that I recalled the manual saying something as simple as the gas cap could trigger the check engine light. So I tried the gas cap and although it was on tight, it was a couple of clicks shy of being tightened as far as it would go. So I tightened the cap all the way and tested the remote start, and it worked! Also the check engine light went out. Looking closely at the gas cap I noticed a small sign under it that read something like "failure to fully tighten the gas cap may result in the check engine light going on." So Chrysler anticipated that this might be a problem and made a good effort to alert owners to it. It's just that cars are so complicated these days even a diligent buyer has a hard time taking it all in at once.