The contact owns a 2019 Mazda CX-5. The contact stated that while driving 30 MPH with a toddler occupying the rear seat, the contact noticed smoke and an abnormal burning rubber odor coming through the vents. The contact pulled into a gas station and then pulled into a nail salon parking lot. There was no warning light illuminated. The contact was able to drive to the residence, where an independent mechanic inspected the vehicle and found an oil leak, and the mechanic diagnosed that the cylinder head had cracked. The vehicle was taken to the dealer. The dealer informed the contact that the repair could not be covered under an unknown Extended Warranty because of the type of engine. The manufacturer was notified of the failure and informed the contact that the repair could not be covered under Goodwill assistance because the oil changes had not been mainly performed by the dealer. The vehicle was not repaired. The failure mileage was approximately 83,000.

- Norwood, MA, USA

The contact owns a 2019 Mazda CX-5. The contact stated that while the vehicle was parked, the contact discovered an abnormal odor coming from the engine compartment. No warning light was illuminated. The vehicle was taken to a dealer, where it was diagnosed that there was a cracked cylinder head and that the cylinder head needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 26,000.

- Garland, TX, USA

The contact owns a 2019 Mazda CX-5. The contact stated became aware of engine oil on his driveway. The contact stated that while driving and coming to a stop, there was an abnormal oil burning odor inside the vehicle. The contact stated the check engine warning was illuminated. The contact had taken the vehicle to an independent mechanic who diagnosed that there was an oil leak coming from the cylinder head and determined that the cylinder head needed to be replaced. The independent mechanic researched online and related the oil leak failure to Mazda Service Alert Number: SA-031/21 (Engine and Engine Cooling). The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 89,000.

- Eastman, GA, USA