2024 Mazda CX-90 Plug-In Hybrid Powertrain (other) Problems

While driving 35 mph on a busy street, our vehicle completely lost power. The vehicle started violently shaking until I came to a complete stop. Many warning lights came on. Two primary: "Hybrid Malfunction", "Engine Malfunction" along with a couple others. When I stopped the car completely, it took 5 minutes before I could change the car from park to drive to move the car out of the way of oncoming traffic. Sitting in the middle of a busy road with hazards on is not safe!! Also, Suddenly losing power on a very busy street caused car behind me to slam brakes and honk at us. Very lucky we didnt cause an accident. If this had happened in a different situation such as freeway at 75 mph, major intersection, on a long roadtrip etc... the risk for significant disaster increase significantly! The car is current at Tum Dahle Dealership in Murray, Utah. This is the second time in 4 months we've had to take this car to the dealer for an issue. The first time was just an "Engine Malfunction" light. It sure seems like we bought a lemon. Even if they fix this car, my confidence is extremely low in this car being a safe car that im ok with having my family in.

NHTSA ID

11688799

Incident

Sep 19, 2025

Humming noise coming out of the powertrain that might be related to gear box or bearing. This mechanical safety issues mught endanger my life and cause a breakdown while driving, thus an accident. Mazada did not find the fix yet and unable to repair. Since September 3rd, my car is in Jim Click repair shop with no solution at sight.

NHTSA ID

11688371

Incident

Sep 3, 2025

- Serious safety issue: car stopped suddenly in the middle of traffic - Errors appeared: Hybrid System Malfunction, “vehicle can not be driven” and “Electrical Leakage in Hybrid System Detected” - Would not come out of park, had to be towed to Mazda dealership - Picked up car and after 15 min of driving the 'hybrid malfunction' light came back on - Car was returned to Mazda dealership for testing

NHTSA ID

11664266

Incident

May 28, 2025

On my way to drop kid to school all of a sudden the car gave up power and shuddered with engine malfunction and I-drive malfunction warning. Check engine light came on. This is risky because another vehicle could have smashed into us if on highway or high speed. Research shows that a whole lot of people have this identical issue.

NHTSA ID

11620262

Incident

Oct 14, 2024

I was driving in EV mode and was behind another vehicle waiting to turn out of a plaza. The exit is on a slope which is important to mention. The car in front of me began to turn and as I was releasing the brake to move up the hill, the car engine kicked on, the RPM’s went up extremely high as if the accelerator was being pressed all the way to the floor, the car jolted forward on its own and hit the car in front of me. I kept trying to brake, but the car continued to accelerate on its own into the car in front of me a second time. I understand that when on a slope driving in EV mode, the cars engine will kick in to allow the car enough momentum to make it up the hill. However, in this case, the engine kicked in, but the momentum was extreme to the point that when I released the brake to roll forward the car shot forward so fast there was no avoiding a collision. This is extremely faulty and unsafe! My child and I suffered injuries as a result of striking the other car twice. We’re lucky we were not hit by multiple other cars as we were propelled into the intersection. I’m terrified to drive this car with my children. I contacted the dealership that instructed me to have the collision repairs completed first and then they would check out the car out.

NHTSA ID

11614103

Incident

Sep 6, 2024

Driving up snowy pass on I-90 approaching the top of Snoqualmie Pass. Vehicle stalled and warning lights flashed critical warning and loss of power. The vehicle stopped in the middle of the highway and would not start or go into drive. After a few minutes, because of speeding and adverse conditions, another driver collided with my vehicle from behind. Another following vehicle lost control and ran off the road. Nobody was injured. Mazda has not provided any information to what happened with the vehicle. We added about 12k miles in the 5 months of driving it, so we had lots of testing with it, and never ran into this serious of an issue with this or any other vehicle.

NHTSA ID

11583951

Incident

Jan 6, 2024

At 3200 miles the vehicle had a major powertrain malfunction causing the vehicle to throw multiple error codes - Hybrid System Malfunction; Charging System Malfunction; Electrical Leakage Detected. Was instructed to pull over to a safe area immediately. Was unclear how long car would continue to be drivable. Once car stopped it became completely immobile. Repeated restart attempts would not let vehicle start ICE engine or shift into gear. Had to be towed via dollies to nearest dealer for diagnosis and repair. Dealer found a failed PTC heater unit as source of problem and replaced it (Mazda part- KMV6-61-FHX). Vehicle is once again drivable, but the dealer has no idea what would cause the unit to fail and how to avoid future problems. Dealer has heard about this with many vehicles and repaired several similarly. We are fortunate to have found a safe place to pull off the road before powertrain shutdown, but if not we would have been stuck on the road with no ability to move the vehicle and occupants to safety. I hope NHTSA can investigate whether a recall of that part or the software that controls it is needed. NHTSA should also look into the failure mode of the vehicle to see if a different approach is safer and more appropriate.

NHTSA ID

11577948

Incident

Mar 9, 2024

LA SUV MAZDA CX90 PHEV HIBRIDA SE COMPRO EN JULIO DE 2023, ES TOTALMENTE NUEVA. QUEREMOS PONER EN EVIDENCIA EL ALTO RIESGO QUE PADECEMOS CON EL VEHICULO, ENTRE [XXX] MI MUJER Y YO IBAMOS EN EL AUTOMOVIL Y DE REPENTE SE FRENO POR COMPLETO EN MEDIO DE UN PUENTE QUE ES MUY TRANSITADO Y CAUSO UNA PREOCUPACION Y MUCHO MIEDO PORQUE NO LO ESPERABAMOS Y AFORTUNADAMENTE NO PASO NADA POR QUE IBAMOS DESPACIO EXACTAMENTE 25 MILLAS POR HORA Y PORQUE EL CARRO QUE VENIA ATRAS DE NOSOTROS GIRO A LA IZQUIERDA JUSTO ANTES DE NOSOTROS PERDER EL CONTROL DEL AUTOMOVIL QUE SE FRENO SOLO SIN JUSTIFICACION ALGUNA NO OBSTANTE ADELANTE DE NOSOTROS NO HABIA NIGUN AUTOMOVIL PARA QUE EL AUTOMOVIL SE DETUVIERA. NOTA: MI MUJER SE ENCUENTRA EN ESTADO DE EMBARAZO Y NO SE SIENTE CONFIADA EN EL AUTOMOVIL, TIENE MUCHO MIEDO A LA HORA DE USARLO. EL PROBLEMA ES AUN MAS GRANDE PORQUE DIAS ANTES DEL INCIDENTE EL CONCESIONARIO REALIZO UN SERVICIO DE CAMBIO DE ACEITE Y SERVICIO POR UN RECALL POR LOS SENSORES DEL VEHICULO, DE LO CUAL SOLO HICIERON CAMBIO DEL ACEITE. ADICIONALMENTE A ESTA INFORMACION EL VEHICULO POSEE VARIOS RECALL QUE NO HAN SIDO SOLUCIONADOS POR EL CONCESIONARIO, TENEMOS PRUEBAS DE LOS VARIOS PROBLEMAS QUE VIENE PRESENTANDO EL VEHICULO. ADICIONALMENTE HEMOS VENIDO PRESENTANDO DIFICULTADES CON EL SERVICIO PRESTADO EN EL CONCESIONARIO DE MAZDA DE LODI NJ CODIGO POSTAL 07644, NO HAN TENIDO VOLUNTAD EN SOLUCIONAR NUESTRO PROBLEMA , HICIMOS LA RESPECTIVA QUEJA ANTE MAZDA MATRIZ Y SOLO NOS DIERON LA OPCION DE LLEVAR EL VEHICULO A REVISION , EL CUAL FUE REVISADO HOY [XXX] Y SE TARDARON SOLO 1 HORA PARA ANALIZARLO Y DECIR QUE NO TIENE PROBLEMAS EL VEHICULO. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11573499

Incident

Dec 8, 2023

Started the vehicle and got the message "Hybrid system Malfunction. Have the vehicle inspected". Vehicle was shaking and would not go above 30 MPH.

NHTSA ID

11560013

Incident

Dec 13, 2023