What 47 owners told NHTSA about the 2025 Mazda Cx-70 Mhev

My cx 70 has extreme brake squealing. This began early on after I purchased this vehicle new from the dealership. I have brought this car to the Mazda dealership that I bought it from three times for this issue.

NHTSA ODI 11731789

On the morning of January 28, 2026 I arrived to work and came to a complete stop in my works parking garage. I used my key card to raise the gate. Once the gate was fully raised I pressed the accelerator to drive up the ramp. Shortly after accelerating, my engine revved really loud and high rate, then my car automatically increased speed. I immediately pressed the brake pedal but it didn’t stop. It continued accelerating at a speed not controlled by me with my brakes not engaging even though I was pressing the brake as hard as could. I estimate I travel about 100’ with no control of the gas or brake. It lasted about 15-20 seconds. If a car were in front of me at that time, I would have crashed into them because I could not stop the car. I immediately called Davis Moore Mazda. I had the vehicle towed there because I didn’t feel safe driving it. Information from my cars computer program was sent to Mazda. Mazda didn’t see any issues and their diagnosis was a foot was likely on the accelerator causing the acceleration. The general manager called me to discuss. He said the only thing that registered was acceleration. I asked does the computer show my attempt to brake (stop) the car. His response was the computer wouldn’t read that because that was a normal driving process that wouldn’t be recorded. I asked why the acceleration would trigger an alert in the computer, since acceleration is also a normal driving process. He then said the computer picked it up because it accelerated quickly. There were no warnings present prior to this issue.

NHTSA ODI 11716014

Vehicle has been squealing countlessly when braking about 1 to 2 days after leaving the dealership in September 2024 up until current. The vehicle has been out of commission for more than 15 days while attempts to repair the issue at local Mazda dealerships. On the last attempt to correct the issue, Ferman Mazda dealership in Brandon FL performed some sort of shaving of brake component to ensure this would not continue; however, the noise continues and this also may increase the safety risk now.

NHTSA ODI 11662058

The contact owns a 2025 Mazda CX-70. The contact stated while parking the vehicle, the brake pedal was depressed, however, the vehicle failed to stop as intended. The contact stated that while the brake pedal was depressed, the vehicle jerked forward and hit a huge rock before crashing into two trees. The contact stated that she may have nudged the cruise control switch, however her foot was still on the brake pedal. The contact lost control of the vehicle. The contact stated that the failure occurred in the Mountain America Credit Union parking lot. In addition, the contact stated that the air bags deployed and there was a lot of smoke in the interior of the vehicle. The fire department and the Police arrived on the scene. The vehicle was towed to a local lot. The vehicle was then towed to an independent mechanic for repairs. A Police report was filed. The contact was transported to the local hospital for treatment. The contact sustained a head injury, an injury to the left wrist, multiple contusions cuts, and bruises to both legs. The contact stated that she thinks the injuries to both of her legs were caused by the deployment of the air bags. The manufacturer was made aware of the failure but did not assist. The failure mileage was approximately 100.

NHTSA ODI 11616699