NHTSA Complaint #11553119 — 2017 FORD FUSION

My 2017 ford fusion alerted to me that it was overheating, I immediately checked my fluids and noticed my coolant was empty so I refilled it. I assumed that when I recently had my car serviced they somehow forgot to refill my coolant when flushing/replacing me fluids. The next week I went to leave for work one morning and my car wouldn't start, had the battery checked and it was fine, replaced the started and still wouldn't crank. Then I had my fusion towed to a local mechanic who wasn't able to find the issue since they didn't do internal engine repairs, so paid that shop and had it towed to the dealership where I purchased the fusion and a couple of weeks later they tell me my pistons won't hold pressure and I need a new engine (8-10k) with no explanation as to what caused this. My fusion was purchased with 3 miles on it and currently has less than 49k on it. I have always taken very good care of my vehicle, but am now told that my warranty was 5 years from manufacturer date, not purchase date, leaving me with very little options. This issue needs to be addressed asap.