What 403 owners told NHTSA about the 2024 Mazda Cx-90-phev

I have a 2024 MAZD CX-90 Preferred Plus AWD. I was driving my [XXX] grandson to preschool and it sounded as though the passenger's door opened while I was driving. In the split second I looked back to check, unfortunately, I hit a guard rail. My grandson was buckled in his car seat. his first words were "Meme, the door opened but I didn't do it". He was buckled in his car seat and I believe the safety door locks were on. There was no warning sound or light indicating the door was open while I drove. I pulled over, got out of the car and looked. the passenger's back door handle was positioned up but the door was closed. being so shook up, I didn't think to take any pictures. I then had messages on my car saying Dynamic Stability control malfunction - have the vehicle inspected and Engine Malfunction - have the vehicle inspected. I called my dealership to find out if there were any recalls on this type of problem (they said that there weren't any). I have come across a forum where a person states: "So can confirm 1st row passenger door does not provide any warning as well. Looking at the manual, I see that there is supposed to be a warning sound when any door/hood/liftgate is open while driving, as quoted below. If someone else confirms this is normal behaviour, then I think we should file a safety defect complaint with the NHTSA and Transport Canada. “Door-ajar Warning Light/Liftgate-open Warning Light/Hood-open Warning Light The light turns on if any door/liftgate/hood is not closed securely. In addition, the warning sound is activated if any door/trunk lid/liftgate is not closed and the vehicle is driven. Close the door/liftgate/hood securely.” This was a very scary situation. I absolutely will concede that something did happen with this rear passenger door. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11712279

At approximately 16:50 engine malfunction warning light appeared and dealership was notified. Appointment scheduled for 4 days after. At 17:21 car began swerving uncontrollably along I80 with warning “engine malfunction, have the vehicle inspected.” The car was shaking violently and veered off the road into the ditch between the eastbound and westbound highway. The car was totaled. Review of the vehicle app indicated that just before the crash at 17:19 several critical vehicle malfunctions messages appeared. The vehicle crashed at 17:21.

NHTSA ODI 11641436

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 ODI 11583951