Some customers may complain about engine surging 100-200 rpm when accelerating up a hill at altitudes...
Mazda technical service bulletin 01-010-23a for 2021-2023 Mazda MAZDA3 and 2021-2023 Mazda CX-30.
- Bulletin number
- 01-010-23a
- Component
- Engine and engine cooling
- Summary
- Some customers may complain about engine surging 100-200 rpm when accelerating up a hill at altitudes around 6,700 feet or higher. This concern may be caused by improper PCM control software in particular situations. To eliminate this concern, the PCM control software has been modified.
Owners of these vehicles have filed 83 complaints in the engine category.
Vehicles covered
- Mazda MAZDA3 2021-2023 202120222023
- Mazda CX-30 2021-2023 202120222023
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