Mazda North American Operations is recalling certain 2024-2025 Mazda3 and CX30 vehicles. The Sophisticated Air Bag Sensor (SAS) units may set an error code and deactivate the air bags, due to a low battery condition.
2020-2026 · 7 model years
Mazda CX-30 Problems by year
Owners have filed 259 complaints about the Mazda CX-30 across 7 model years, and it has 7 recalls. The 2021 has the most complaints once its age is allowed for (101). The most reported problem area is the engine & cooling, followed by the electrical system.
- Complaints
- 259
- Recalls
- 7
- Crashes
- 26
- Fires
- 1
- Injuries
- 22
- Deaths
- 0
CX-30 complaints by model year
Highlighted: the year with the most complaints for its age. Older vehicles have had more time to collect complaints - the Safety Index grade allows for that.
Most common CX-30 problems
Mazda CX-30 recalls 7
Mazda North American Operations (Mazda) is recalling certain 2024 Mazda 3, CX-30, and 2025 CX-50 vehicles. A malfunction in the forward sensing camera (FSC) may prevent the automatic emergency braking system and the lane-keep assist system from functioning...
Mazda North American Operations (Mazda) is recalling certain 2022-2023 CX-30 and 2023 CX-50 vehicles. The anti-lock brake system (ABS) Hydraulic Control Unit (HCU) may be damaged, which can result in reduced braking ability.
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-30 vehicles. When fully opened, the power liftgate may partially lower unexpectedly when the vehicle is parked facing uphill on a slope.
Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 vehicles equipped with all-wheel drive. The evaporative vent hose for the fuel tank may be disconnected, possibly allowing fuel to leak from the charcoal canister vent at the rear of the...
Covers2020 Mazda CX-30
Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 and Mazda3 vehicles. The front brake caliper mounting bolts may not have been tightened properly during assembly, possibly allowing the calipers to loosen.
Latest CX-30 complaints
My son made a left hand turn and travelled approximately 40 feet at 20 mph when his car stopped suddenly. The Smart Break System (SBS) came on unprovoked and without any warning, causing the car to come to a complete stop and jolting my son's head and neck. Prior to this happening, no alarms sounded and no visuals appeared on the dashboard screen or on side mirrors. Fortunately, no cars were behind or he would have been rear-ended with serious injuries. On the street that this occurred, there were parked cars to...
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the right but the his Mazda was not in close proximity to them. The car was evaluated at the dealership where the vehicle was purchased. According to the Service Manager, the SBS was working as it should and the technician found the Smart Break System in the MCVV and found no DTCs stored. When asked if the front radar sensor could be replaced, the Service Manager said it was working as it should. The Service Manager also said that he had experienced a similar unprovoked stop while driving over the bridge due to the bright sun. Was also told that the SBS can be set to early, normal or late setting to lessen or heighten the sensitivity of the SBS or it can be toggled to "off" each time the engine is started but it resets to "on" the next time the car is started again. Their is no choice for the driver to shut off the SBS completely. This is definitely a safety issue, one that other car manufacturers have acknowledged by allowing the driver to dismantle the SBM system. The lives of Mazda drivers who experience "ghost objects" resulting in abrupt braking without warning, as well as surrounding drivers, are in jeopardy.
I am reporting multiple serious safety-related mechanical failures involving my 2024 Mazda CX-30, all occurring while the vehicle was covered under Mazda's manufacturer's warranty. At approximately 8,000 miles, my vehicle developed seized brake calipers. Despite bringing the vehicle to an authorized Mazda dealership multiple times, my concerns were initially dismissed. I continued operating the vehicle for thousands of miles before the brake calipers, rotors, and pads were replaced. This raises serious concerns...
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regarding braking performance and the safety of myself and other motorists. On October 13, 2025, at approximately 41,000 miles, my vehicle experienced a complete transmission failure, leaving me stranded and requiring towing. The transmission was subsequently replaced under warranty. My vehicle has also unexpectedly shut down while being driven on public roads on multiple occasions. On July 10, 2026, the vehicle broke down on a narrow, winding, two-lane roadway. The vehicle displayed a message instructing me to place it in Park. These unexpected failures created dangerous situations, potentially exposing me and surrounding motorists to collisions, particularly where safe stopping areas were limited. Additional warranty-related failures have included oil leaks from the oil pan and timing chain cover, forward-facing camera and driver-assistance system malfunctions, and other mechanical concerns. These problems have been reported to authorized Mazda dealerships, and multiple components have been inspected, repaired, or replaced under warranty. Despite extensive repairs, I remain concerned about the vehicle's overall safety and reliability. I am requesting that NHTSA investigate the repeated braking, transmission, and unexpected vehicle shutdown incidents. A relatively new vehicle should not repeatedly experience failures that could endanger its occupants and other drivers. I am concerned that these failures may indicate broader safety defects requiring inv
The contact owns a 2024 Mazda CX-30. While driving 30 MPH, the vehicle experienced unintended braking. During the failure, the vehicle unexpectedly downshifted to first gear with a red circular warning light illuminated on the instrument panel with an audible chime. The contact stated that the "Smart Brake Support" feature could prevent the failure from occurring; however, the setting could not be saved and had to be manually disengaged. The failure mileage was approximately 10,000.
Since purchasing the vehicle, the braking system has activated on its own for no reason. Today, Oct 19, 2026, it was cold and it said the system was failing. My camera system fails when it rains. My 2024 Mazda CX-30 has 62,000 miles and is experiencing the exact catastrophic phantom braking and forward camera failures detailed in NHTSA Recall 24V649000 (Mazda Campaign 6824H). My VIN is currently excluded from the recall campaign, but the vehicle is a severe highway safety hazard due to spontaneous unprovoked braking
Airbags did not deploy, sensors keep going off, car keeps over heating even before accident did take it in to Mazda to be fixed two months prior.
Multiple fixes and repairs on a P0421 code. Repaired by Mazda with a new catalytic converter but then refused to replace it when the code came back saying it was not covered by the warranty. Mazda says it is not a common issue but they have had issues in the past with the same P0421 code repeatedly showing up on a healthy car.
Questions about the Mazda CX-30
Which Mazda CX-30 years have the most problems?
Which Mazda CX-30 years have the fewest complaints?
Among model years that have been on the road for at least three years, 2020 have the best Safety Index - the fewest complaints, crashes and recalls for their age compared with other CX-30 years. Always check the exact vehicle's recalls by VIN before you buy.
What are the most common Mazda CX-30 problems?
Across every model year, owners report problems with the engine & cooling (69), electrical system (51), driver assistance (45) most often.
How many recalls does the Mazda CX-30 have?
NHTSA lists 7 recalls across all Mazda CX-30 model years. Each year's page lists the recalls for that year; check your own vehicle by VIN at nhtsa.gov/recalls to see whether the repair has been done.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data