Mazda CX-30 problems and known issues

By CarWhere Research · Updated November 6, 2026

The Mazda CX-30’s largest recall is 25V357, which reprograms or replaces the air bag sensor on 2024–2025 models because a low battery can switch the air bags off. Earlier campaigns cover 2020 brake caliper bolts and AWD fuel vent hoses, 2020–2021 power liftgates and a 2022–2023 ABS unit. Check any CX-30 VIN before buying.

CarWhere lists 6 documented CX-30 issues, including 6 NHTSA safety recalls, each with affected years, powertrains, symptoms, pre-purchase checks and a source. Recall entries come from NHTSA's recall dataset on the DOT open-data portal, which may not list every campaign, so run the specific VIN through NHTSA's recall lookup.

CX-30 generations at a glance

Mazda CX-30 generations and the known issues listed for each
Generation	Model years	Issues on this page
1st gen	2020–present	Air bag sensor unit can switch off the air bags (recall 25V357) · Front brake caliper bolts may loosen (recall 20V346) · Disconnected fuel vent hose can leak fuel on AWD models (recall 20V347) · Power liftgate can lower on its own on a slope (recall 21V086) · ABS hydraulic control unit may be damaged (recall 23V275) · Forward sensing camera can disable emergency braking (recall 24V649)

1st gen CX-30 problems (2020–present)

Air bag sensor unit can switch off the air bags (recall 25V357) (2024–2025)

Safety recall

Generation:: 1st gen (2020–present)
Years:: 2024–2025
Powertrain:: All

The Sophisticated Air Bag Sensor (SAS) unit on certain 2024–2025 CX-30 and Mazda3 models can set an error code during a low-battery condition and deactivate the air bags. Dealers reprogram or replace the unit (campaign 7525E). The 171,412 count covers both models.

Symptoms

Air bag warning light on
Warning appears after a weak or dead battery

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 25V357 (2025-05) · 171,412 vehicles in the campaign

Sources: [1]

Front brake caliper bolts may loosen (recall 20V346) (2020)

Safety recall

Generation:: 1st gen (2020–present)
Years:: 2020
Powertrain:: All

The front brake caliper mounting bolts on certain 2020 CX-30 and Mazda3 models may not have been tightened at the factory, letting the calipers loosen. Dealers tighten the bolts and replace calipers whose bolts are missing. The 24,037 total covers both models.

Symptoms

Clunk or rattle when braking
Brake noise or pull

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 20V346 (2020-06) · 24,037 vehicles in the campaign

Sources: [2]

Disconnected fuel vent hose can leak fuel on AWD models (recall 20V347) (2020 (AWD))

Safety recall

Generation:: 1st gen (2020–present)
Years:: 2020 (AWD)
Powertrain:: All, AWD only

The evaporative vent hose for the fuel tank on 12,097 2020 CX-30 AWD models may be disconnected, letting fuel leak from the charcoal canister vent at the rear. Dealers reconnect the hose and replace the canister and related parts.

Symptoms

Fuel smell near the rear of the vehicle

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 20V347 (2020-06) · 12,097 vehicles in the campaign

Sources: [3]

Power liftgate can lower on its own on a slope (recall 21V086) (2020–2021)

Safety recall

Generation:: 1st gen (2020–present)
Years:: 2020–2021
Powertrain:: All

On 13,857 2020–2021 CX-30 models parked facing uphill, a fully opened power liftgate can partially lower unexpectedly. Dealers update the liftgate control software and replace the drive unit if its serial number is affected.

Symptoms

Liftgate drifts down after opening fully

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 21V086 (2021-02) · 13,857 vehicles in the campaign

Sources: [4]

ABS hydraulic control unit may be damaged (recall 23V275) (2022–2023)

Safety recall

Generation:: 1st gen (2020–present)
Years:: 2022–2023
Powertrain:: All

The anti-lock brake hydraulic control unit may be damaged on certain 2022–2023 CX-30 and 2023 CX-50 models (2,410 vehicles), reducing braking ability. Dealers inspect and replace it as needed.

Symptoms

ABS or brake warning light
Longer stopping distances

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 23V275 (2023-04) · 2,410 vehicles in the campaign

Sources: [5]

Forward sensing camera can disable emergency braking (recall 24V649) (2024)

Safety recall

Generation:: 1st gen (2020–present)
Years:: 2024
Powertrain:: All

A forward sensing camera fault on a small number of 2024 CX-30 models (plus 2024 Mazda3 and 2025 CX-50) can stop automatic emergency braking and lane-keep assist from working. Dealers inspect and replace the camera (672 vehicles in total).

Symptoms

Driver-assist warning messages

Check before buying

Run the 17-digit VIN through NHTSA’s recall lookup and confirm the remedy shows as complete
Also check mazdausa.com/recalls by VIN

NHTSA recall: 24V649 (2024-09) · 672 vehicles in the campaign

Sources: [6]

Related CX-30 research

This page explains specific mechanical issues and recalls. Which model years drew the most owner complaints relative to the rest of the model’s history is answered in the years-to-avoid research where CarWhere publishes it.

Confirm how a CX-30 was built before you buy.

Engine, transmission and packages decide which of these issues apply. The CarWhere Mazda build sheet reconstructs factory colors, options and packages from licensed VIN-level build data — availability is checked free, and it is $9.99 only when detailed build data is found for that VIN.

Mazda build sheet by VIN

Frequently asked questions

What is the Mazda CX-30 air bag recall?

Recall 25V357 covers certain 2024–2025 CX-30 and Mazda3 models. The air bag sensor unit can log an error and turn off the air bags after a low-battery event; dealers update or replace it free.

Does the 2020 CX-30 have recalls?

Yes. 2020 models have recalls for front brake caliper bolts (20V346), a disconnected fuel vent hose on AWD models (20V347) and a power liftgate that can lower on its own (21V086, 2020–2021).

Is the CX-30 related to the Mazda3?

Several CX-30 recalls also cover the Mazda3, including the air bag sensor (25V357), caliper bolt (20V346) and forward camera (24V649) campaigns, which points to shared parts.

How do I check a CX-30 for open recalls?

Enter the 17-digit VIN at NHTSA’s recall lookup and on Mazda’s recall page. Recall work is free at Mazda dealers.

Sources

Issue descriptions are CarWhere’s own summaries of the sources below. Repair costs are shown only where a source states them and vary by shop and region.

More Mazda tools

Independent reference compiled by CarWhere — not affiliated with or endorsed by Mazda North American Operations or Mazda Motor Corporation. Mazda and the model names are trademarks of their owners.