Two problems related to transmission not go into gear have been reported for the 2012 Mazda MAZDA3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Mazda MAZDA3 based on all problems reported for the 2012 MAZDA3.
The shifter assembly (tiptronic) fails to change gears when using the "manual" mode. Vehicle has 64k miles. Vehicle was serviced for same issue 3 years prior.
At 41k miles had to have the shifter assembly replaced because the tiptronic failed to change gears when using the "manual" mode. At 64k miles, experiencing the same issue (approx 3 years after initial repair).