One problem related to brakes failed has been reported for the 2010 Mazda MAZDA3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 Mazda MAZDA3 based on all problems reported for the 2010 MAZDA3.
Takata inflators. Highway traffic had come to a stop and while trying to come to a stop my brakes completely failed with the pedal pushed all the way down. The car barely slowed down and rear ended the still car in front at approximately 40 mph. Even with such a forceful impact the airbags didn't come out.