One problem related to brake light on has been reported for the 2015 Mazda MAZDA3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Mazda MAZDA3 based on all problems reported for the 2015 MAZDA3.
Failed brake booster, brake light switch faulty, excessive brake pressure required to engage switch. Vehicle did not start because switch not engaged.
| Service Brakes problems | |
| Brake Disc Caliper problems | |
| Brake Light On problems | |
| Brake Disc Pads problems | |
| Brake Grinding Noise problems |