NHTSA Complaint #11549770 — 2018 MAZDA CX-5

I just had my vehicle in for routine maintenance and oil change and three days later it started leaking oil, staining my driveway, with the leak getting progressively worse then my check oil light went on, and the day I brought it in, and it was smoking under the hood. My safety and the safety of others on the road was at risk. At the routine maintenance visit they found no issues with the vehicle. After bringing it into the dealership they diagnosed it as a cylinder head crack needing replacement. We had another dealership look at the diagnostic video and explain that this is poor manufacturing. It’s just over 60,000 miles but is still within our warranty from a timeline aspect. Upon research we found this is happening to many people with a Mazda’s from year, 18 to 21. There are many forums about this. Upon an online search we found this problem documented as tsb SA-031/21. I am disappointed that the Mazda company is aware of the faulty cylinder heads in this vehicle, and now I am responsible for the maintenance charge.