What is the 2022-2023 Mazda CX-30 Damaged ABS Hydraulic Control Unit - Reduced Braking - Recall 23V275000 (5823D)?

Certain 2022-2023 CX-30s can have internal damage in the ABS Hydraulic Control Unit (HCU), which can reduce braking ability and increase the distance needed to stop the vehicle, raising crash risk. Severity: high.

What is the 2020-2025 Mazda CX-30 Infotainment System Freezing / CarPlay Disconnecting?

The Mazda Connect infotainment system in CX-30 frequently freezes, reboots, or loses Apple CarPlay/Android Auto connection. Issues are exacerbated by certain phone models and iOS/Android updates. Wireless CarPlay implementations are particularly unstable. Firmware updates from Ma… Repairs typically run $0-$800. Severity: medium.

What is the 2020-2025 Mazda CX-30 Windshield Stress Cracking?

CX-30 windshields are prone to developing stress cracks without external impact. The acoustic laminated glass used for noise reduction appears more susceptible to temperature changes and frame flex. Cracks often originate from the edges or near the base of the windshield. Multipl… Repairs typically run $400-$1,200. Severity: medium.

What is the 2020-2025 Mazda CX-30 A/C Condenser Leak?

The A/C condenser in the CX-30 is prone to developing pinhole leaks from road debris impact and corrosion. The condenser sits exposed behind the front grille with minimal protection. Refrigerant loss causes gradual A/C performance degradation until the system stops cooling entire… Repairs typically run $400-$900. Severity: medium.

What is the 2021-2022 Mazda CX-30 Excessive Oil Consumption (2.5 Turbo) - Low Oil Warning Between Changes?

Owners of 2021-2022 CX-30 2.5 Turbo models report the low engine oil level warning illuminating only a few thousand miles after service with no visible external leaks, indicating oil burning in the combustion chamber (some owners see warnings well under 10,000 miles, recurring ev… Severity: medium.

What is the 2020-2025 Mazda CX-30 Cylinder Deactivation Valvetrain Tapping/Rattle (Switchable HLA Air Entrapment) - SA-026/23?

CX-30s with the 2.5L naturally aspirated SkyActiv-G equipped with cylinder deactivation can develop a tapping/rattling noise from the valve train area. Mazda traces it to the switchable hydraulic lash adjusters (HLAs) used by cylinder deactivation, which malfunction when air bubb… Severity: medium.

What is the 2020-2025 Mazda CX-30 i-Activsense False Emergency Braking & Spurious Brake/Driver-Assist Warnings?

CX-30 owners report the i-Activsense automatic emergency braking system activating with no real obstacle (phantom braking) or grabbing when maneuvering around vehicles at low speed, with the system noticeably more sensitive than rivals even at its lowest setting. Owners also repo… Severity: medium.

What is the 2020-2021 Mazda CX-30 Power Liftgate Unexpectedly Lowers - Recall 21V086000 (4621B)?

On affected 2020-2021 CX-30s, the fully-opened power liftgate can partially lower on its own when the vehicle is parked facing uphill on a slope. Mazda traces it to insufficient frictional retaining force in certain power liftgate drive motor units combined with reduced support-s… Severity: medium.

What is the 2020-2021 Mazda CX-30 Rear Door Service Hole Cover Seal Failure - Water Leak into Rear Passenger Floor (TSB 09-020/21)?

2020-2021 CX-30 vehicles leak water into the passenger compartment from the rear doors, entering at the bottom of the service hole behind the rear door trim panel. Mazda identified two causes: the service hole cover's seal rubber lacks resistance to surfactants and deteriorates w… Repairs typically run $0-$450. Severity: medium.

What is the 2021 Mazda CX-30 Tire Air Valve Sealing Surface Damage Causing Sudden Deflation - Recall 21V101000 (4721B)?

A narrow build window of 2021 CX-30 vehicles received wheel and tire assemblies in which previously-installed tire air valves were mixed back into new parts stock at the supplier. A valve installed into a wheel more than once can have damaged sealing surfaces, producing either a… Repairs typically run $0-$0. Severity: medium.

What is the 2020-2024 Mazda CX-30 Climate Control Unit and Body Control Module Fail to Enter Sleep Mode - Parasitic 12V Battery Drain (SSPC5)?

Mazda issued Special Service Program SSPC5 for the CX-30 covering multiple control-module reprogramming concerns, the first of which is a battery concern: the climate control unit (CCU) and body control module (BCM) may not transition into sleep mode after the ignition is switche… Repairs typically run $0-$400. Severity: medium.

What is the 2020 Mazda CX-30 Front Strut Upper Mounting Rubber Clearance Defect - Rattle Over Bumps (TSB 02-004/21)?

Early-production 2020 CX-30 vehicles built before October 15, 2019 exhibit a rattle from the front suspension when driving over bumps or wavy road surfaces. Mazda traced it to the strut upper mounting rubber: insufficient clearance between the rubber and the metal bracket of the… Repairs typically run $0-$900. Severity: low.

What is the 2020-2021 Mazda CX-30 Bose Audio Amplifier Control Program Fault - Loud Static from Speakers (SSPC4)?

CX-30 vehicles equipped with the optional Bose audio system may emit a loud static or buzzing noise from some or all speakers, caused by an inappropriate control program in the audio amplifier. The noise occurs independently of what is playing and independently of driving status… Repairs typically run $0-$0. Severity: low.

Mazda · Known Issues

2020-2025 Mazda CX-30 Problems: 18 Known Issues

2020-2025 model years · 3,850+ owner reports · Updated August 2026

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According to Au7o's analysis of 3,850+ owner reports, the 2020-2025 Mazda CX-30 has 18 documented known issues, with 6 rated critical. The most serious are Damaged ABS Hydraulic Control Unit - Reduced Braking - Recall 23V275000 (5823D), Disconnected Fuel Evap Vent Hose Causing Fuel Leak / Stalling (AWD) - Recall 20V347000 (4520F), Forward Sensing Camera Malfunction Disables Automatic Emergency Braking, Lane-Keep Assist and Auto High Beam - Recall 24V649000 (6824H) ($0-$0 repair), Sophisticated Air Bag Sensor (SAS) Deactivates Air Bags After Full Battery Discharge - Recall 25V357000 (7525E) ($0-$0 repair), Torque Converter Lock-Up Clutch Wear Contaminating ATF with Iron Powder - Chirp on 3-4 Upshift (TSB 05-005/23) ($1,500-$3,200 repair) and Front Brake Caliper Mounting Bolts Loosen and Fall Out - Reduced Braking - Recall 20V346000 (4420F) ($0-$0 repair). The most commonly reported issue is Infotainment System Freezing / CarPlay Disconnecting with 1,800 owner reports. Across all issues with published estimates, repair costs range from $400 to $3,200. at .

Frequently Asked Questions

What are the most common Mazda CX-30 problems?

According to Au7o's analysis of 3,850+ owner reports, the 2020-2025 Mazda CX-30 has 18 documented issues. The most frequently reported are: Damaged ABS Hydraulic Control Unit - Reduced Braking - Recall 23V275000 (5823D), Disconnected Fuel Evap Vent Hose Causing Fuel Leak / Stalling (AWD) - Recall 20V347000 (4520F), Forward Sensing Camera Malfunction Disables Automatic Emergency Braking, Lane-Keep Assist and Auto High Beam - Recall 24V649000 (6824H). Of these, 6 are rated critical and should be addressed promptly.

Is the Mazda CX-30 reliable?

The 2020-2025 Mazda CX-30 has 18 known issues documented across 3,850+ owner reports. 6 issues are rated critical: Damaged ABS Hydraulic Control Unit - Reduced Braking - Recall 23V275000 (5823D) and Disconnected Fuel Evap Vent Hose Causing Fuel Leak / Stalling (AWD) - Recall 20V347000 (4520F) and Forward Sensing Camera Malfunction Disables Automatic Emergency Braking, Lane-Keep Assist and Auto High Beam - Recall 24V649000 (6824H) and Sophisticated Air Bag Sensor (SAS) Deactivates Air Bags After Full Battery Discharge - Recall 25V357000 (7525E) and Torque Converter Lock-Up Clutch Wear Contaminating ATF with Iron Powder - Chirp on 3-4 Upshift (TSB 05-005/23) and Front Brake Caliper Mounting Bolts Loosen and Fall Out - Reduced Braking - Recall 20V346000 (4420F). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Mazda CX-30 problems?

Repair costs for known Mazda CX-30 issues range from $0 to $3,200, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Mazda CX-30 is the most reliable?

Reliability varies across model years of the Mazda CX-30. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2020-2025 Mazda CX-30 with 18 documented issues documented across 3,850+ owner reports.

All 18 Known Issues

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Frequently Asked Questions

What are the most common Mazda CX-30 problems?

Is the Mazda CX-30 reliable?

How much does it cost to fix common Mazda CX-30 problems?

What year Mazda CX-30 is the most reliable?

Forward Sensing Camera Malfunction Disables Automatic Emergency Braking, Lane-Keep Assist and Auto High Beam - Recall 24V649000 (6824H)#

Sophisticated Air Bag Sensor (SAS) Deactivates Air Bags After Full Battery Discharge - Recall 25V357000 (7525E)#

i-Activsense False Emergency Braking & Spurious Brake/Driver-Assist Warnings#

Damaged ABS Hydraulic Control Unit - Reduced Braking - Recall 23V275000 (5823D)#

Front Brake Caliper Mounting Bolts Loosen and Fall Out - Reduced Braking - Recall 20V346000 (4420F)#

Disconnected Fuel Evap Vent Hose Causing Fuel Leak / Stalling (AWD) - Recall 20V347000 (4520F)#

Torque Converter Lock-Up Clutch Wear Contaminating ATF with Iron Powder - Chirp on 3-4 Upshift (TSB 05-005/23)#

Infotainment System Freezing / CarPlay Disconnecting#

Climate Control Unit and Body Control Module Fail to Enter Sleep Mode - Parasitic 12V Battery Drain (SSPC5)#

Bose Audio Amplifier Control Program Fault - Loud Static from Speakers (SSPC4)#

Windshield Stress Cracking#

Power Liftgate Unexpectedly Lowers - Recall 21V086000 (4621B)#

Rear Door Service Hole Cover Seal Failure - Water Leak into Rear Passenger Floor (TSB 09-020/21)#

Excessive Oil Consumption (2.5 Turbo) - Low Oil Warning Between Changes#

Cylinder Deactivation Valvetrain Tapping/Rattle (Switchable HLA Air Entrapment) - SA-026/23#

A/C Condenser Leak#

Tire Air Valve Sealing Surface Damage Causing Sudden Deflation - Recall 21V101000 (4721B)#

Front Strut Upper Mounting Rubber Clearance Defect - Rattle Over Bumps (TSB 02-004/21)#