Technical Service Bulletin 01-003-25a — 2020 MAZDA CX-3
ENGINE
Bulletin Details
| TSB ID | 01-003-25a |
| Manufacturer | |
| Vehicle | 2020 MAZDA CX-3 |
| Component | ENGINE |
| Communication Date |
Bulletin 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. This concern may be caused if the coolant control valve fail-safe thermostat opens at a temperature lower than the normal temperature due to a deformation of the thermostat diaphragm. To eliminate the concern, the water flow control valve specification has been modified.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2020 MAZDA CX-3
CSP13a Parts and Warranty
UNKNOWN OR OTHER
SA-027-24
EQUIPMENT ADAPTIVE/MOBILITY
SA-001-23a
EQUIPMENT
SA-067-22
ELECTRICAL SYSTEM
SA-026-22
ELECTRICAL SYSTEM
00-003/22
EQUIPMENT
SA-006-22a
WHEELS
SA-006-22a
EQUIPMENT:MECHANICAL
MT-003/22
FUEL SYSTEM, GASOLINE
07-005-21-3836
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:CONDENSOR/EVAPORATOR