Some customers may experience the check engine light ON with DTC P0126:00 (Thermostat stuck open) and one...
Mazda technical service bulletin 01-005-23a for 2019-2023 Mazda MAZDA3, 2018-2024 Mazda CX-5 and 2018-2021 Mazda MAZDA6 and others.
- Bulletin number
- 01-005-23a
- Component
- Engine and engine cooling
- Summary
- Some customers may experience the check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up The engine temperature gauge fluctuates The low coolant temperature indicator (blue) light stays on longer or comes on while driving Poor heater performance, especially at idle
Owners of these vehicles have filed 606 complaints in the engine category.
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