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Service bulletins for the 2012 Mazda Mazda3

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

446 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission control module are shown. Show all

Bulletins, newest first
05-002-232023-06-04. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780, P1738).
SA-038-222022-07-06. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. Service part Automatic Transaxles (ATX) manufactured on or after July, 2018 are shipped with a blank TCM that requires configuration.
05002152022-06-06. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Check Engine light and A/T Warning light on with one or more of these DTS (P0842, P0847, P0872, P0877, P0780, P1738) Stored in TCM Memory
MT-014-172017-08-10. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. Whenever you are reprogramming a PCM or any other module, always use the GR8 Battery Charger in the Power Supply mode to prevent the battery from discharging.
SA-060-172017-08-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE; ENGINE. Some 2012-2016 Mazda3s, 2013-2015 CX-5s and 2014-2015 Mazda6s may experience the Check Engine Light ON with DTC P0101 and/or P061B and/or driveability problem after reprogramming the PCM using IDS versions 105.02 to 105.04. If the PCM is reprogrammed with any software number included in the attached file and the throttle valve has too much carbon build up, the engine air amount calculation by the problem software may not be accurate. Perform the following Repair Procedure to correct this issue. NOTE Current version of IDS is 106.02.
01-004-14-28932017-04-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE THE MIL ON WITH DTC P013A:00 (HO2S CIRCUIT SLOW RESPONSE). THIS IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM. TO CORRECT THE PROBLEM, THE CONTROL LOGIC OF THE PCM HAS BEEN CHANGED.
05-006-12-2736A2017-04-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SOME VEHICLES MAY EXPERIENCE EXCESSIVE SHIFT SHOCK OR A LONG TIME LAG WHEN SHIFTING FROM P TO R OR FROM N TO. THIS IS CAUSED BY MISS LEARNING OF THE TCM FOR SHIFT TIMING. TO CORRECT THE PROBLEM, THE LEARNING LOGIC OF THE TCM HAS BEEN CHANGED.
05-006-12-27362017-04-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SOME VEHICLES MAY EXPERIENCE EXCESSIVE SHIFT SHOCK OR A LONG TIME LAG WHEN SHIFTING FROM P TO R OR FROM N TO R. THIS IS CAUSED BY MISS LEARNING OF THE TCM FOR SHIFT TIMING. TO CORRECT THE PROBLEM, THE LEARNING LOGIC OF THE TCM HAS BEEN CHANGED.
01-020-13-28162017-04-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SOME VEHICLES MAY EXHIBIT THE ENGINE RPM TEMPORARILY GOING UP ABOVE 3,000 WHEN THE ACCELERATOR PEDAL IS SLIGHTLY PUSHED WHILE SHIFTING AROUND 30 KM/H (19 MPH). THE ENGINE RPM RETURNS TO IDLE IF THE DRIVER TAKES THEIR FOOT OFF THE ACCELERATOR PEDAL. THIS CONCERN IS CAUSED BY IMPROPER CALIBRATION OF THE PCM FOR TORQUE TRIM CONTROL. TORQUE TRIM CONTROL IS USED ON THIS M/T TO ADJUST THE ENGINE RPM TO A SUITABLE SPEED FOR THE GEAR AFTER SHIFTING. THE FUNCTION ONLY WORKS WHEN THE DRIVER STEPS ON THE ACCELERATOR PEDAL WHILE SHIFTING TO HELP ACHIEVE SMOOTH SHIFTS. TO CORRECT THE PROBLEM, THE PCM SOFTWARE HAS BEEN MODIFIED.
SB-05-006-122016-06-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SUMMARY TO BE PROVIDED ON A FUTURE DATE.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.