2023 MAZDA CX-9 — Problems, Recalls & Safety Data

On February 9, 2026, our 2023 Mazda CX‑9 experienced a sudden and complete system malfunction while being driven. Multiple system failures began approximately six minutes before the crash. During this time, the driver reported: • Total loss of steering • Complete brake failure • No response to acceleration or driver input • No ability to slow, stop, or maneuver the vehicle • No meaningful warnings that allowed corrective action The vehicle became completely uncontrollable. At the crash site, there were no skid marks, no braking evidence, and no signs of evasive action, consistent with a full loss of vehicle control. The vehicle only stopped after entering approximately two feet of water and striking a tree. The vehicle was declared a total loss. This incident represents a severe safety defect involving critical electronic and mechanical systems. A modern vehicle should not lose all steering, braking, and control functions under any circumstances. We are requesting a full investigation into the cause of this failure and whether similar incidents have occurred in other Mazda vehicles. We can provide photos, crash documentation, diagnostic information, and driver statements upon request.

On February 9, 2026, our 2023 Mazda CX‑9 experienced a sudden and complete system malfunction while being driven. Multiple system failures began approximately six minutes before the crash. During this time, the driver reported: • Total loss of steering • Complete brake failure • No response to acceleration or driver input • No ability to slow, stop, or maneuver the vehicle • No meaningful warnings that allowed corrective action The vehicle became completely uncontrollable. At the crash site, there were no skid marks, no braking evidence, and no signs of evasive action, consistent with a full loss of vehicle control. The vehicle only stopped after entering approximately two feet of water and striking a tree. The vehicle was declared a total loss. This incident represents a severe safety defect involving critical electronic and mechanical systems. A modern vehicle should not lose all steering, braking, and control functions under any circumstances. We are requesting a full investigation into the cause of this failure and whether similar incidents have occurred in other Mazda vehicles. We can provide photos, crash documentation, diagnostic information, and driver statements upon request.

If you press both the brake and gas at the same time (even if accidental), the onboard computer apparently thinks that the driver is confused, and it sets the gas flow to “idle”. The first time this happened was on the freeway, and I was very lucky to be able to coast into a gas station (thinking that I simply running out of gas - even though the gas gauge showed plenty of gas remaining). And so, I took it to Christian Brothers automotive the next day, and they ran extensive (and expensive) diagnostics. They found (to their surprise!) that this is the way the latest CX-9 works! The computer sees that you are on the gas and brakes, and so it “thinks” that you must be confused. And so, it sets the gas to “idle”. I believe this is an extremely dangerous action for the computer to take, and this behavior needs to be removed from all CX-9's IMMEDIATELY! And please don't just say (as others have) that the driver "shouldn't press both the brake and accelerator at the same". One might use the brake and accelerator at the same time for good reason, such as an icy road. But the computer SHOULD NOT DECIDE ON ITS' OWN TO SET THE THROTTLE TO IDLE!

I recently purchased a 2023 Mazda CX9 with factory installed tires, Falken Ziex CT50 A/S p255/50R20 104V M+S. I was driving on the freeway on Tuesday [XXX] going around 65-70MPH. My tire pressure light came on all of a sudden, I started to slow down and make my way over to the right lane and then shoulder to check it out and all of a sudden the tire tread completely ripped away from the rest of the tire. Some of the sidewalls stayed intact, which ultimately protected my wheel from damage. But other than the tire pressure light coming on 30 seconds before the failure, there was no warning, no obvious defect or anything in the tire. Had it been one of my front tires it potentially could have been way worse of an outcome as I was driving on a bridge and next to a semi. The shop where I ended up replacing all 4 tires because I did not feel safe using this brand any longer said he has never seen the tread just rip right off of the sidewalls. I searched the tire make and model and there was an open recall on this specific brand and size tire, but my date stamp did not match. However, it was the same exact reason for the recall in the first place. So clearly this company has not changed their manufacturing methods and is putting people's lives in danger with these tires spontaneously detaching from the wheel. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I brought my vehicle in on 2/22/25 for a brake issue. I had to pump the brakes every time before I stopped to get the brake pedal to work. If I just hit the brakes the pedal would go almost to the floor. Greico Mazda has attempted 4 times to fix this issue with no success and has had my car in their shop for 4 months. I am now waiting for a Mazda rep to "fly in" to look at the car. They have replaced multiple parts on the car. I no longer feel safe driving this vehicle and have limited faith in Mazda to correct the problem.