My 2018 FFH has 80k miles on it. Every 5k the hybrid coolant reservoir would go from max to min. The second dealer took interest in testing it when I mentioned it was losing coolant.
The first dealer found nothing four months and 20k miles ago.
Second dealer found leaks today, not quite sure, but they told me evidence was on radiator that a leak was there for some time. Failed pressure test right away. I am waiting on parts to be installed next week. I'll update when complete.