Mazda North American Operations (MNAO), on behalf of Mazda Motor Corporation, has filed a safety defect notification with the National Highway Traffic Safety Administration (NHTSA) for a concern which exists on certain 2024 MY CX-90 PHEV (Plug-in Hybrid Electric Vehicle) vehicles. The engine and electric motor may shut down with little to no warning in failsafe mode. An increase in the PHEV system inverter temperature above a specified threshold will activate the failsafe mode. Logic of t.