2022 Mazda CX-30

On April 15th, 2025, my 2022 Mazda CX-30 experienced a sudden malfunction while I was driving. Despite having the automatic emergency braking system and forward collision warning, the car failed to slow down or alert me before I hit another vehicle during a pile-up. Right after the collision, my dashboard lit up with multiple error messages about the forward collision system, brake system, and sensor malfunctions. I had the car towed to the dealership, where a full diagnostic scan was performed. It revealed multiple hard fault codes, including U0415 (Invalid Data Received from ABS Control Module), which I later found was listed in a recent Mazda recall (23V-487) affecting my exact safety system—but Mazda told me my VIN was not included. The vehicle was inspected by a certified Mazda dealership. Mazda has refused to take full responsibility despite the safety system failing and the car still being under warranty. My safety was put at direct risk because the brake system did not function when it should have, causing a wreck that could have been avoided.

There is a recall that doesn't include my car. In March before my service due date I got several critical notices on the dash) I-Activsense System malfunction, IActivsense advanced safey and driver support system not operating correctly, Have vehicle inspected. 2) Braking System Malfunction, Stop the vehicle in a safe place, 3)Safety and Driver Support Systems Partially Disabled 4) Vehicle Satus Monitor Serious Malfunction (1) Brake System Malfunction, Vehicle Warning Messages 1..IActivsense System Malfunction next service, which was in 4k miles. This with 19,700 miles on the car (bought with less then 5k on it). I pulled off the road and ate and got back in and all lights gone however 3/7, 3/18, 3/21, 3/22 it all came on again but was gone on arrival to dealership. I had brake fluid checked and it was almost empty, unusual and I know if it leaks and gets wet it corrodes discs, and that is the recall and that is what happened. So far no satisfaction from Mazda other than me paying to have it fixed including a complete brake system flush which should NOT be due till about 50k. I know CX 30 was recalled for this issue, they missed mine. Last service invoice In August says brakes are good, all fluids topped off, yet brake fluid was almost empty and corrision is not even front to rear, salt air is the same on both sides of my car. And why and where is the fluid? I had a third party check it before going in for service (he didn't touch because I'm under warranty but is experienced person in business) .. I will upload Aug and April service invoices. iNVOICE AT 15,374 miles states brakes are good and all fluids topped off, SO in 7 months brakes are destroyed fluid is empty at 19,687 miles. What happened if it wasn't recall problem? Warranty? I believe it should have been in recall.

There have been 3 different ongoing issues. The car was ordered and delivered brand new in April 2022. At 4,000 miles and again at 12,000 mile is would display low oil and require 1 quart of oil. The dealership acknowledged that it has an oil consumption issue, unresolved. I have to bring it in every time it is low prior to its required oil change time/miles. At 19,742 miles the cars battery died. They replaced it an have no reason why it died. Every time I'm driving in the mountain pass the transmission will not advance above 3rd gear. The engine will whine and I have to put it into manual and move it to 4th and or 5th gear. When I coming down the other side of the mountain, I have the same issue with it only advancing to 3rd and not proceeding to 4th or 5th. Then when I reach the bottom and on flat road the message- safety system and deactivated. This last for apx 10 minutes. The dealership has no idea why it does it.

I've used cruise control for decades and use it even on city streets, so I can concentrate on the road rather than my speed. The concept of adaptive cruise control is great, but the execution is very flawed on my Mazda CX30. The system fails to recognize lane separation and turn lanes where lines do not exist. The result is the Mazda CX30 adaptive cruise frequently brakes to slow the car for vehicles not in the lane it is in. At some point this is going to result in a rear end accident, because of other vehicles not allowing proper distance and my Mazda CX30 slowing for no valid reason. I shared this issue multiple times with dealership service, with Mazda via their website and with Mazda via emailed surveys. Dealership service says everything is working correctly. Mazda has not responded. If I could turn this functionality off, and have it stay off, I would do so and not report it here, but it turns back on every time the car is started. I was puzzled by this being an issue for me, on my Mazda CX30, but not for friends with other vehicles. What I learned talking to friends is that they rarely use cruise on city streets, which is the primary location for the issue. I discovered a Cheverolet Traverse, I rented, only beeped at me when it detected issues at locations where the Mazda CX30 slowed.