NHTSA Complaint #11486142 — 2017 MAZDA CX-9

Vehicle has only 50k miles and developed a coolant leak which was caused by a crack in the cylinder head. No check engine light or overheating, but this repair will cost was estimated as over $4k. A cracked cylinder head would eventually lead to vehicle overheating which can put driver and passengers in a dangerous situation if vehicle were to overheat while operating as this is a significant engine repair. After dealer technician inspected the part, I was informed that they don't see overheating or poor maintenance as the cause of this issue, but it was caused by the part failing.