2012 Mazda MAZDA3 power train problems
40 owner complaints filed with NHTSA name the power train on the 2012 Mazda MAZDA3 — 18% of all complaints for this model year.
What owners report
“Car started jerking and on the way home, the car lost all power to the transmission. The check engine light came on as well as the AT and traction lights. Absolutely no power to the transmission. codes P0780 and P0751.”
filed Jun 23, 2024
“The car started to stall, hesitate and even stop completely for no apparent reason. The mechanic first recommended a new ECU/TCU which did not help the problem and in the course of duplicating the problem check engine light has come on for the transmission with problems shifting/sticking in a gear…”
filed Oct 17, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance…
SA-029-26 · Service Bulletin/Repair Instructions · issued Apr 21, 2026
Power Train problems in other MAZDA3 years
| Year | Reports | Share |
|---|---|---|
| 2022 MAZDA3 | 2 | 9% |
| 2021 MAZDA3 | 3 | 6% |
| 2020 MAZDA3 | 1 | 3% |
| 2019 MAZDA3 | 11 | 15% |
| 2018 MAZDA3 | 5 | 5% |
| 2017 MAZDA3 | 3 | 4% |
| 2016 MAZDA3 | 9 | 9% |
| 2015 MAZDA3 | 5 | 4% |
| 2014 MAZDA3 | 7 | 5% |
| 2013 MAZDA3 | 18 | 15% |
| 2011 MAZDA3 | 12 | 9% |
| 2010 MAZDA3 | 40 | 6% |
Other reported problem areas on the 2012 Mazda MAZDA3
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.