2012 Mazda MAZDA3: ABS light or ABS activating

Filed Jun 16, 2025 · Brakes · VA

The brake pedal is soft and sometimes unresponsive unless it is pumped repeatedly. There have been several times where I have been concerned if I would come to a complete stop. I have had both sets of brake pads replaced in the last year, and have on driven 9,000 miles. Two independent service centers diagnosed the problem as a faulty master cylinder. However, upon replacing the master cylinder and doing three brake flushes, and inspecting my brake pads and calipers, the problem persisted and is unresolved. They directed me to order a new ABS module, believing that that is the only other part that could be causing the cars brake problems. This part (BFY1437AZCO) is on backorder until November 2025.

Filed Jul 11, 2024 · Brakes · VA

Weak braking and spongy brake pedal created near accidents at highway speeds. Brake pedal needs to be pumped to get firmness. But the check engine warning light did not come on, either. So I had mechanics replace front rotors, front disc pads, and bleed/refill system with fresh brake fluid and inspect system for leaks. But spongy brake pedal problem was not fixed. So when I researched the problem on the internet, it appears that it's a systemic, long-time (10 model years or more) safety issue with Mazda that they failed to recall nationwide. Totally irresponsible. Among Mazda owners, after replacing all other brake system components and not solving the spongy brake pedal issue, it turned out to be a faulty ABS System Module, a $2,000 to $3,000 repair at Mazda dealerships.

Filed Sep 25, 2023 · Brakes · NY

My brake pedal became very spongy and soft after the ABS was activated. The brake pedal has to travel all the way to the floor to stop the vehicle. My rotors, pads and other brake parts are checked by experts and there is not any issue found with other brake parts. Even though the brake system is not working properly, there are no ABS lights on the dashboard. I risk an accident every day. I killed a squirrel because the brake system didn’t work properly. Maybe one day I will die or cause to lose someone’s life because of this braking issue. I started to be affected psychologically. I've read many complaints from Mazda users on forums about this problem. In subsequent investigations, Ford has recalled 600,000 2006-2010 Fusion, Mercury Milan, and Lincoln MKZ midsized cars to fix an ABS problem. The ABS valve reacts with the brake fluid currently used in the vehicles and can significantly slow or stop the action of the ABS valve, leading to braking problems. When I took my car to my mechanic, I just learned these Mazda 3s were equipped with the same ABS Controle Units as these specific Ford models. However, there are no recalls for these Mazda’s. It cannot be a coincidence that the same ABS control module is used and the same problem occurs. It is unacceptable that Mazda did not recall any vehicle while Ford took a step in this regard. This problem needs to be solved urgently before someone dies! This is a big safety issue! All companies using this ABS Controle Unit must Recall!

Filed Feb 11, 2022 · Brakes · VA

The brakes have to be pressed to the floor in order to break. They were not breaking like normal. The ABS module was deemed faulty and replaced.

Filed Nov 5, 2021 · Brakes · IA

Brakes became soft. Needed to pump them to stop the vehicle. My mechanic changed pads, rotors and master cylinder. However, it did not fix the problem. I have read several reports of people complaining about the same issue, likely related to a faulty ABS module. Safety issues should be addresses promptly by reputable manufacturers.

Filed Aug 31, 2021 · Brakes · IN · crash · 2 injuries

I was coming up on a car waiting to make a left turn. While attempting to move to the right-hand passing lane, five lights lit up and the power steering went out. The five lights were "Power Steering Malfunction Indicator Light", "TSC/DSC Off Indicator Light", "Security Light", "ABS Warning Light", and "Seatbelt Warning Light" (even though my seat belt was on and buckled). Realizing I could not turn in time, I attempted to stop instead and could not stop in time to avoid striking the other vehicle. There had been no indication of problems with any of the indicated systems prior to this incident. The vehicle is currently in possession of our insurance company, as it was deemed a total loss, and no inspection for defects has been performed.

Filed Jan 4, 2015 · Electrical, Engine · 16,090 miles · OH

My wife was driving on the freeway - I was on the passenger side. This is the first time it happened. The car lost sort of reset itself - dash warning lights came on (according to my wife). Radio/cd stopped music - ABS light went on (that's all I can see from passenger side). My wife said others too but she was focused on the road because it was a construction zone. She was nervous and said the car was not responding to throttle. Luckily all went back to normal after 2 or maybe 3 seconds. The music came back on also. No check engine light or any sign of trouble. We pulled over and I checked the front to see if we hit something that could have caused it. Restarted the car - all seemed normal and reached our destination. This was our first 200 mile trip or more on this car. 1 day after arrival - I did a once over safety check (fluids, tire pressure, etc) nothing out of the ordinary. Got my obd2 code reader and it had the following u3003 u0140 u0428. So I will take this to our dealer for checkup.

Filed Mar 8, 2014 · Engine, Transmission · 18,800 miles · PA

Hello, I was driving down a highway going about 30-40 MPH in the passing lane. I went to accelerate past a truck when I noticed I wasn't gaining any speed. I looked down and the ABS light was on. Thinking that I might be in a lower gear and my auto transmission wasn't shifting well I changed it over to manual. There were no gear lights indicated on the dash. I could not get any power to the transmission from the engine. I have to pull over on the side of the road, while still kind of on the road considering I had no power. In a desperate attempt I turned the car off and back on and everything seemed to be reset. I called mazda today and they seemed almost like it was no big deal. Well I consider this a big deal, losing transmission power on a highway is a big deal. Anyways I saw a post a few days ago with the same exact issue. This should not happen!