Service bulletins for the 2021 Mazda CX-30
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.
616 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 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. |
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| 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. |
| 08-002-22a | 2022-10-06. Service bulletin. AIR BAGS. Some vehicles may exhibit that the air bag warning light turns on or repeats cycles of turning on and off with DTC B1126:13 and/or B1127:13 stored in memory. - B1126:13 - Driver-side side air bag module circuit open circuit or resistance high - B1127:13 - Passenger-side side air bag module circuit open circuit or resistance high This issue is caused by one or both of the following: - When the driver or passenger moves, a load is applied to the seat back and the load may cause displacement of the mating terminals in the side air bag module connector, resulting in insufficient contact and higher resistance. - The DTC detection level is too sensitive. To eliminate these concerns: - The design of the connector terminals in the side air bag module has been modified for firmer contact. - The DTC detection level of the SAS control module has been optimized. |
| 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. |
| 01-010-22 | 2022-10-06. Service bulletin. POWER TRAIN. Some customers may experience a squeaking noise may be heard from the exhaust manifold when the idle speed drops from fast idle to normal idle speed during cold start. This is caused by a variable valve being stuck in the closed position. When returning from fast idle to normal, the stuck valve suddenly opens due to thermal change around it which causes abnormal noise. To eliminate this concern, the internal design of the exhaust manifold 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-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 |
| 16-005-22 | 2022-09-06. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Ver. 7000C0A-NA06_12012 or later). |
| 16-004-22 | 2022-09-06. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain that Mazda Connect does not start or that it takes a long time to restart after starting the vehicle. This is caused by the initialization process with the CMU failing at startup due to a defective circuit board element. To eliminate this concern, the internal hardware of the CMU has been improved. |
| 16-001-22c | 2022-09-06. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7000C0A-NA01_12002 or later). |
| 09-034-22 | 2022-09-06. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain about a fuel gauge that fluctuates to a higher level at a stop on inclines, even after a long drive since it was fully refilled. This is caused by improper control software of the body control module (BCM). To eliminate this concern, the control software of the BCM has been modified. |
| 09-030-22 | 2022-09-06. 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. |
| 09-027-22 | 2022-09-06. Service bulletin. ELECTRICAL SYSTEM. When replacing the body control module (BCM), some ECUs may need reprogramming. Without reprogramming the concerned ECUs, the power saving function may not work properly. |
| 09-004-22a | 2022-09-06. Service bulletin. LATCHES/LOCKS/LINKAGES. Some CX-5 and CX-30 customers may find that the liftgate does not close when pressing the power liftgate (PLG) rear switch located on the interior liftgate trim. This may be caused by PLG switch corrosion. Water from a high pressure car washer and/or condensation may drip onto the switch connector and cause corrosion. To eliminate this concern, the PLG rear switch has been modified with a waterproof connector. Some Mazda3, CX-30 and MX-30 customers may complain that the vehicle door locking system does not work when the door lock switch on the liftgate interior trim is pressed. DTC B11C4:23 (BCM - liftgate lock switch circuit malfunction) may be stored. This may be caused during a high pressure car wash and/or condensation. Water may enter through the rear center brand emblem base component and drip onto the switch connector causing corrosion. The rusted connector may also cause a battery drain. To eliminate this concern, the rear center brand emblem base has been modified to prevent water entry (Mazda3) and the rear harness has been modified to prevent water infiltration (Mazda3, CX-30 and MX-30). |
| SA-050-22 | 2022-09-06. Service bulletin. LATCHES/LOCKS/LINKAGES. Some customers may complain that their liftgate does not open. This can mean a range of things, from the liftgate not unlatching to the power liftgate (PLG) not opening automatically. If you confirm that the customer's concern is that the liftgate does not unlatch correctly, follow the repair information below |
| SA-051-22 | 2022-09-06. Service bulletin. SERVICE BRAKES, HYDRAULIC. A customer may complain that they have a brake squeal at the rear brakes. |
| SA-049-22 | 2022-08-04. Service bulletin. EQUIPMENT. Some vehicles may exhibit the trim peeling off the EPB (Electronic Parking Brake) or power window switches. |
| 15-004-22 | 2022-07-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Some vehicles may exhibit the warning messages "Safety and Driver Support Systems Temporarily Disabled" or "Front Radar Obscured. Drive Safely." displayed in the instrument cluster despite no dirt on the front radar sensor while driving in specific locations as follows: - Roads with continuous elevated road ways on one side or tall walls on one side - Inside tunnels with an overall rounded shape - Roads with no reflective objects around This is caused by inappropriate decision logic of the control software in the front radar sensor. To eliminate this concern, the control software of the front radar sensor has been modified. |
| 01-006-22 | 2022-07-06. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the battery periodically according to the repair procedure. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.