Service bulletins for the 2021 Mazda CX-3
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
278 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with type: Other are shown. Show all
| PF-26-01 | 2026-03-04. Other. ENGINE. The coolant control valve updated part is now available and supersedes PYFD-15-16ZA. As a result, PYFD-15-16ZA is no longer available. PW5S-15-16Z is supplied with a dummy plug pre-installed. Critical Installation Requirement: When replacing PW5S-15-16Z, the Powertrain Control Module (PCM) must also be updated to the latest software version. Failure to perform the PCM update may result in drivability concerns or diagnostic trouble codes. |
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| SA-011-24a | 2024-07-05. Other. UNKNOWN OR OTHER. Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop manual or owner's manual. Services performed outside of Mazda's factory scheduled maintenance are not recommended. These services are unnecessary and create unneeded expenses for your customers. |
| SA-022-24a | 2024-07-05. Other. WHEELS. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains or discoloration. |
| SA-016-24a | 2024-07-05. Other. SERVICE BRAKES. Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to the following information to understand why symptoms may occur, and to better assist the customer in resolving their specific brake concern. |
| PF-24-09 | 2024-07-05. Other. ENGINE. A new repair procedure has been developed to address DTC P0126:00 on SKYACTIV-G 2.0/2.5L engines (non-turbo). Mazda has introduced a replacement kit of the thermostat located within the Coolant Control Valve (CCV). NOTE: It is no longer necessary to replace the CCV for this DTC. |
| 01-005-24 Dlr Ltr | 2024-07-05. Other. ENGINE. 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. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable to this service information. If DTC P2B61:00 (Coolant control valve circuit range/performance) accompanies DTC P0126:00, this TSB is not applicable. Diagnose DTCs according to the instructions on MGSS online. |
| SA-032-24 | 2024-06-04. Other. ELECTRICAL SYSTEM. The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use the following test procedures in this Service Bulletin to test Mazda vehicle batteries and to generate a Warranty Code. NOTE: A Warranty Code is required for warranty claim submission |
| SA-035-24 | 2024-06-04. Other. ENGINE. There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolant leak from the bleed hole. This Service Alert is to inform you about the water pump sealing mechanism and the criteria if replacement is necessary or not. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.