Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or...
Mazda technical service bulletin 01-005-24b for 2019-2025 Mazda MAZDA3, 2018-2024 Mazda CX-5 and 2018-2021 Mazda MAZDA6 and others.
- Bulletin number
- 01-005-24b
- Component
- Engine
- Summary
- Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle.
Owners of these vehicles have filed 608 complaints in the engine category.
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