Service bulletins for the 2021 Mazda Mazda3
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.
634 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 01-012-22 | 2022-11-04. Service bulletin. ENGINE AND ENGINE COOLING. Some vehicles may exhibit accumulation of dried coolant (1) around the water pipe (2). This is caused by a gap between the housing and pipe due to a press fitting during the manufacturing process. The accumulated coolant is solidified and plugs the gap in high temperature environment and the seepage is stopped and does not progress. This is normal and does not require a part replacement, clean off the dried coolant from around the pipe with a wire brush. |
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| 01-011-22 | 2022-11-04. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Some vehicles may have a "OW ENGINE OIL LEVEL" warning message and a CHECK ENGINE light illuminated in the instrument cluster with DTC P250F:00 stored in memory, and the oil level has actually decreased to near low. * DTC P250F:00 - Engine oil level signal: engine oil level low This is caused by an oil consumption increase due to damage of the valve seals on the exhaust side. To eliminate this concern, the design of these valve seals has been modified. |
| SA-068-22 | 2022-11-04. Service bulletin. POWER TRAIN. The new SKYACTIV-DRIVE FW6A-EL AT uses "Automatic Transmission Fluid (ATF) Type: FZ". Only use "ATF-FZ" to fill or top off the fluid level. ATF-FZ is specially designed for use in the SKYACTIV-DRIVE series AT. It is a low viscosity formula with less friction for better fuel economy. NOTE: ATF-FZ is colored blue for easy identification. |
| SA-067-22 | 2022-11-04. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain about the following message displayed in the Multi-Information Display: In the following cases, the MRCC with Stop & Go function system is canceled when the vehicle is traveling at 19 mph (30 km/h) or less: * The Forward Sensing Camera (FSC) cannot detect target objects due to one of the following: - The windshield is dirty - The FSC lens is foggy - There is low visibility due to rain, fog or snow - It is at night and there is not enough light - There is direct or reflected sunlight on the FSC - There is problem with the FSC * There is a problem with the AUTOHOLD control function. * There is a problem with the electric parking brake (EPB). |
| SA-066-22 | 2022-11-04. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may have one of the following DTCs stored in memory along with a system status notice on the Multi-information display OR display a system status notice with no DTC: * C1001:92 - Forward sensing camera (FSC) poor field of view [Gen 6 vehicles] * B14F0:92 - General temporary failure in forward sensing camera (FSC) [Gen 7 vehicles built on or before March 2, 2019] * No DTC - Warning Message only [Gen 7 vehicles built after March 2, 2019] DTC C1001:92 or B14F0:92 set as a past record for low visibility of the Forward Sensing Camera (FSC). It does not mean there is an actual FSC defect. * In some cases the customer may have a concern with the Lane Departure Warning System (LDWS) and/or High Beam Control system (HBC). * In other cases this DTC might be found without a related customer concern. NOTE: In most cases, no dealer visit is necessary. |
| SA-065-22 | 2022-11-04. Service bulletin. ENGINE AND ENGINE COOLING. Some vehicles equipped with a coolant control valve may exhibit difficulties when refilling the coolant because the control valve is closed and air in the engine cannot escape during ignition ON. Therefore, turn the ignition OFF when refilling engine coolant using the radiator filler neck. |
| SA-064-22 | 2022-11-04. Service bulletin. ELECTRICAL SYSTEM. Some customers may comlpain about an intermittent Beep sound (popping sound) every 1 ~ 2 minutes while driving. This may be cause by a software error in the navigation SD card. |
| SA-019-22b | 2022-11-04. Service bulletin. EQUIPMENT. Mazda Connected Services Frequently Asked Questions (FAQs) |
| SA-017-22c | 2022-11-04. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain about any of the following: * Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. * Remote function(s) inoperative. - Engine Start / Stop - Door Lock / Unlock - Lights ON / OFF * MAZDA CONNECT connected vehicle reception strength icon shows "X" or " " |
| SA-008-22a | 2022-11-04. Service bulletin. STRUCTURE. Some vehicles may experience exterior trim heat damage when parked near a glass building or Low-E windows. This may be caused by the sun's reflection. |
| SA-004-22f | 2022-11-04. Service bulletin. ELECTRICAL SYSTEM. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. |
| 16-006-22 | 2022-10-06. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7000C0A-NA04_12002 or later). |
| 09-030-22a | 2022-10-06. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may experience the MyMazda App not communicating to the vehicle properly which may result in the condition monitor information is not refreshed or remote door lock/unlock not functioning. This is caused by a failure in communication between the telematics communication unit and the MyMazda App. To correct this issue, the control software of the telematics communication unit has been modified. |
| 09-022-22 | 2022-10-06. Service bulletin. LATCHES/LOCKS/LINKAGES. Some vehicles may exhibit the fuel-filler or charge lid opening unintentionally when unlocking the front doors using the door lock switch, the touch sensor on the outer door handle, or the remote transmitter. This is caused by a mechanical issue at the actuator of the fuel-filler/charge lid (when the fuel filler/charge lid is pushed hard, the guide pin in the actuator comes off). To eliminate this concern, the durability of the guide pin in the actuator has been improved. |
| 07-004-22 | 2022-10-06. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain that after accelerating in hot weather, the A/C blows warm air for a longer time than other models. This is caused by improper control software of the PCM not allowing the A/C compressor to resume properly after acceleration. To eliminate this concern, the control software of the PCM has been modified. |
| SA-061-22 | 2022-10-06. Service bulletin. ELECTRICAL SYSTEM. The Blind Spot Monitoring (BSM) system can malfunction with the following symptoms if the rear side radar sensors are installed facing the wrong direction. - BSM system indicates vehicle on the opposite side. - i-ACTIVSENSE indicator ring will not turn green - Rear Cross Traffic Alert (RCTA) does not work - Rear side radar sensor |
| SA-004-22e | 2022-10-06. Service bulletin. ELECTRICAL SYSTEM. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. |
| SA-025-22a | 2022-10-06. Service bulletin. EQUIPMENT. Some customers may experience infotainment door rattle noise. Follow the repair procedure to help determine the cause. |
| SA-024-22a | 2022-10-06. Service bulletin. EQUIPMENT; STRUCTURE. Some customers may experience an infotainment sub-woofer rattle noise. Follow the repair procedure to help determine the cause. |
| SA-004-22d | 2022-09-06. Service bulletin. ELECTRICAL SYSTEM. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. |
| SA-017-22b | 2022-09-06. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain about any of the following: - Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. - Remote function(s) inoperative. - Engine Start / Stop - Door Lock / Unlock - Lights ON / OFF - MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Confirm the customer's phone and vehicle have good to strong reception during the concern as shown in the table below. - If the reception is weak, move the vehicle to a location where the reception is good to strong as shown in the table, then try to get the Authorization Code and/or operate the remote functions before proceeding to the Repair Procedure if there is still an issue. - If the reception is good to strong, proceed to the Repair Procedure. |
| SA-059-22 | 2022-09-06. Service bulletin. STRUCTURE. Some customers will report that their fuel door was stuck closed and would not open to refuel the vehicle. Follow the repair steps below unless the conditions outlined in TSB 09-019/21 - FUEL-FILLER LID PANEL IS DEFORMED are present. |
| SA-057-22 | 2022-09-06. Service bulletin. SUSPENSION. Some vehicles may exhibit a rattle noise from the front suspension when driving over bumps or on a road with a wavy surface |
| SA-054-22 | 2022-09-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This information will give you the necessary knowledge to respond to customers concerns of Smart Brake Support (SBS) unintended braking. By educating the customer on the system operation, it should reduce their anxiety or distrust of the vehicle. |
| SA-052-22 | 2022-09-06. Service bulletin. VISIBILITY. Some customers may complain that their interior rear view mirror fell off and/or will not stay in place after it is reinstalled. This is due to some mirrors having lower tension on the retaining clips. To eliminate this concern, there was a change in production |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.