Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
8,733 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 Mazda MAZDA6 brakes problems

brakes problem

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2015 Mazda MAZDA6 Owner Comments

problem #3

Apr 042016


  • 17,000 miles


After making a left turn I depressed the brakes to stop for a red traffic signal. The brake pedal was excessively hard to operate and failed to stop the car. To avoid an accident, I had to use the parking break. At the same time the engine RPM increased dramatically. I shifted the transmission to neutral which brought the RPM to normal velocity. After this incident the car performed normally. I have experienced this problem three times, the last time was on April 4,2016. I noticed the failure occurs at slow speed, around 15 to 25 miles/hour. I went twice to berge Mazda in mesa, AZ. Unfortunately they were unable to duplicate the break failure during test. This predicament is still unresolved and could be the cause of a deadly accident. Some help in this matter would be appreciated.

- Mesa, AZ, USA

problem #2

Sep 162015


  • 4,700 miles
The contact owns a 2015 Mazda 6. while driving 26 mph, the vehicle was involved in a rear end collision. The contact stated the warning system did not activate and the automatic braking feature did not engage. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. A police report was filed and no injuries were reported. The approximate failure mileage was 4,700.

- Phoenix, AZ, USA

problem #1

Mar 222015


  • 4,500 miles
Was following a car and came up to a stop light. I depressed brake pedal and felt some resistance but car would not stop. Felt like the brakes were being bled off by perhaps computer control. I switched into a right hand turn lane that was clear, car still not stopping. Shifted into neutral, and engine started to rev up perhaps to 4500 RPM or so, then engine went back to idle on its own. The car had stopped and I put it in park. We then turned right and cautiously proceeded home, without a further problem. Took to dealer and requested the memory be analyzed, they said they could not read the black box at the dealership. It showed no faults. Test drive was uneventful. I again requested the black box be analyzed as the brakes appeared to be bleeding off. They said they would let me know if Mazda needed anything more. My background includes auto mechanic, tow truck driver, car dealership, technician, software engineer, and analyst.

- Surprise , AZ, USA

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