Mazda TSB #05-002-20-3704
2019 Mazda MAZDA3
TSB Document:
Affected Component: ELECTRICAL SYSTEM:SOFTWARE
- Summary
- Some customers may complain about a surging at low speeds and during acceleration. This surging is in the longitudinal direction, felt about 2 cycles per second, and occurs in the locked up 1st gear. This may be caused by the torque fluctuation and the torsional resonance in the torque converter. To correct this concern, the PCM software has been modified to reduce the torque fluctuation.
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