2024 MAZDA CX-90 Complaints

Approximately six weeks ago, I began to notice the steering locking up ever so slightly as I made corrections in sweeping turns at 50 mph or so. In the beginning, I thought that it was road imperfections, but then it became more persistent and undeniable. Following this, it began to lock up more so when turning from a standing stop and accelerating, as when I was merging into traffic from my subdivision street. Some days, I notice it more than others. I was unnerved. I took the vehicle to the dealer, reported the concern, and was regarded as a purple squirrel. I was told that every update related to the steering had been completed and that there was nothing that they could or would do. The problem remained. With the concern remaining, I returned to the dealer and was told that someone else with the exact vehicle reported the problem the day before. Still, there was nothing that they could do as Mazda had not provided any guidance. I do not want to drive the vehicle. It is unsafe.

Mazda's Driver Personalization System is highly defective and properly recognizes a driver, at best, 40% of the time. Since multiple functions are tied to this system such as seat position, steering wheel position, infotainment presets, and a variety of other vehicle preferences, this not only causes an inconvenience issue but also a safety issue. The safety problem is that one has to stop the car, put it into Park, press through multiple menus and keystrokes just to change the setting to the correct driver.

Mazda Connect (Infotainment System) will regularly freeze and reboot. Issue is more pronounced when more than one iPhone is connected via USB-C. If each phone has a different version of iOS, Mazda Connect will freeze, crash, and reboot. If one person is connected and then physically disconnects, then another iPhone with a different version of iOS connects, Mazda Connect will freeze, crash and reboot. To make matters worse, these incidents are not recorded in any logs.

Same problem as Recall no. 24V349000, which does not apply to my vehicle because it is newer than the manufacturer build range. 100% repeatable.

Stopped at a red light on a busy 2-lane road. I-stop function turned the engine off. When the light turned green, releasing the brake caused a "Hybrid Battery Malfunction" error and the engine failed to start. We put the transmission in park and attempted to turn off and turn on the car with the push to start button. When we attempted to start the car with the push to start button, the car would not start. We were unable to shift into neutral to move the car out of the busy 2-lane highway and were blocking traffic for about an hour. The first tow truck to arrive was unable to move the car onto the flat-bed because the transmission was stuck in park and would not go into neutral so another tow truck was dispatched with a dolly. Our safety was at risk because we were stuck in an immobile car in busy highway traffic. A police officer arrived to help direct traffic around our disabled car. The vehicle is currently at the dealership and has not been inspected as of the time of this report.

Mazda CX 90 PHEV. When charging on 110 standard outlet or 240v dedicated breaker - Chargepoint charger, the car onboard charger/inverter backfeeds a loud buzzing / humming back through the electrical wire to the electrical panel. It also causes a buzzing/humming in other appliances and causes led lights in the house to flicker. This is with a 100amp breaker panel and a new upgraded 200amp breaker panel. May cause electrical issues up to electrical fire in other areas of the home. Scheduled diagnostic test in vehicle 10/1/24, but other owners report same issue on Mazda CX 90 online forums.

I was parking the car at a low speed (2mph) when it suddenly accelerated with a great speed, jumped the curb in front and moved forward and up a small hill. The car collided with a tree before I was able to stop it. All ADAS features were activated in the car and no alarms sounded prior or during the event, which lasted between 1-2 seconds. The vehicle was inspected by Mazda and deemed safe to continue to operate. The dealer did not find a cause for the malfunction and suggested external influence. The inspection took about 3hrs, which included addressing multiple recalls on the vehicle. At time of incident I have owned the car for about two months and did not experience similar issues, however others did according to my web search. I found reports on popular forums describing sudden acceleration of Mazda CX-90 vehicles.

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.

Driving between 30 - 40 mph on a strait road with no obstacles in front or along side the emergency braking engaged for no apparent reason at all! This has been an ongoing issue with this vehicle, there was a recall to update the software but the problem still exists intermittently! This is a very serious safety concern to have an all of a sudden unexpected hard braking action when the road is free and clear!

I took delivery of this car about a month ago from the dealership in Kansas. On my way home to Grand Rapids, Michigan I noticed that the driver side rear view mirror was vibrating severely to the point that the image in the rear-view mirror is blurred. This is during daytime driving, at nighttime this issue severely impacts safe driving as I am unable to locate the type of vehicle accurately. Mazda seems to be aware of this issue since 2023 and have been trying to address it through TSB's indicating the dealers to replace the mirror glass. I have taken my car to my local Mazda dealer in grand rapids Michigan, and they have performed the latest TSB on the car, but the mirror continues to vibrate although less than before but still presenting a safety risk while driving. Per the latest conversation with the dealership, Mazda is still continuing to fix a better fix for this issue and I am asked to keep checking each month.