Two problems related to horn assembly have 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.
Horn works on and off, car is unable to reverse (put the car in drive was able to go forward,turned the car off went to restart the vehicle and now the reverse gear does not work,transmission clutch gets stuck and takes off unexpectedly at a fast speed without pressing the gas.
The car will intermittently not shift out of park due to the shift lock not releasing properly, and the stop lights and horn are not functioning properly as well. This seams to be typical of the Mazda3's due to the horn shorting the fuse and the brake switch going bad, and definitely makes the car more accident prone. Others seam to report the cruise control functions stop working due to the same fuse being used for stop lights and the cruise control function.