See the YouTube video on how the system works. We have an 18 Pro4X and it works exactly as described. In fact on real cold days, even the steering wheel heater come on. Whenever we use the remote start on the Titan, we have seldom let the car remain started for more than 5 mins. Sometimes it takes a while to get the minimal amount of snow scraped/wiped off the glass and this gives the truck a little time to warm up as well. In summary, at least the original system works well enough.My new 2018 that I purchased last week is doing the same thing. They told me to wait 1k miles to see if it would straighten out and if not to bring it back and they would replace the tires. I am only a couple of hundred miles in but it hasn't yet. My suspicion is it will not.