Mazda · Known Issues
2025 Mazda CX-70 Problems: 19 Known Issues
2025 model year · 1+ owner reports · Updated September 2026
2025 · All trims · All engines
Choose the year and equipment for your written issues and visual request.
2025 model year · 1+ owner reports · Updated September 2026
2025 · All trims · All engines
Choose the year and equipment for your written issues and visual request.
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According to Au7o's analysis of 1+ owner reports, the 2025 Mazda CX-70 has 19 documented known issues, with 5 rated critical. The most serious are Reported CX-70 False Smart Brake Support Activation - Diagnosis Required, 2025 CX-70 PHEV Recall 7024J: Inverter Software Can Cause Loss of Drive Power ($0-$0 repair), Sudden Unintended Low-Speed Acceleration and Forward Lurch ($0-$400 repair), Hybrid System Malfunction Warning with Engine Stall / Power Loss (PHEV) ($0-$1,500 repair) and 2025 CX-70 Recall 7124J: Dash-ESU Startup Software Can Disable Safety Functions ($0-$0 repair). Across all issues with published estimates, repair costs range from $150 to $1,500. DIY maintenance guides at au7o.io.
ELECTRICAL SYSTEM:SOFTWARE
Mazda North American Operations (Mazda) is recalling certain 2024-2025 CX-90 and 2025 CX-70 vehicles equipped with a Dash Electrical Supply Unit (ESU). During vehicle startup, the defroster, seat belt warning, 360° view monitor functions, and the PHEV high-voltage battery cooling system may not function properly.
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
Mazda North American Operations (Mazda) is recalling certain 2024 CX-90 and 2025 CX-70 vehicles. The powertrain control module (PCM) and engine control modules (ECM) software may cause malfunction indicator lights to illuminate and a loss of drive power.
ELECTRICAL SYSTEM:PROPULSION SYSTEM:INVERTER
Mazda North American Operations (Mazda) is recalling certain 2024 CX-90 and 2025 CX-70 plug-in hybrid electric vehicles. Improper inverter software may cause the malfunction indicator lights to illuminate, and a loss of drive power may occur while in electric vehicle (EV) mode.
ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE
Mazda North American Operations (Mazda) is recalling certain 2024-2025 CX-90 and 2025 CX-70 mild hybrid electric vehicles (MHEV). The fuel gauge in the instrument cluster may display an inaccurate fuel reading.
Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.
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According to Au7o's analysis of 1+ owner reports, the 2025 Mazda CX-70 has 19 documented issues. The most frequently reported are: Reported CX-70 False Smart Brake Support Activation - Diagnosis Required, 2025 CX-70 PHEV Recall 7024J: Inverter Software Can Cause Loss of Drive Power, Sudden Unintended Low-Speed Acceleration and Forward Lurch. Of these, 5 are rated critical and should be addressed promptly.
The 2025 Mazda CX-70 has 19 known issues documented across 1+ owner reports. 5 issues are rated critical: Reported CX-70 False Smart Brake Support Activation - Diagnosis Required and 2025 CX-70 PHEV Recall 7024J: Inverter Software Can Cause Loss of Drive Power and Sudden Unintended Low-Speed Acceleration and Forward Lurch and Hybrid System Malfunction Warning with Engine Stall / Power Loss (PHEV) and 2025 CX-70 Recall 7124J: Dash-ESU Startup Software Can Disable Safety Functions. 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.
Repair costs for known Mazda CX-70 issues range from $0 to $1,500, 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.
False collision warnings or Smart Brake Support braking without an apparent collision target have been reported to NHTSA for the 2025 CX-70. Mazda's manual also explains that SBS has operating limitations and may respond to certain road objects, narrow or low gates, curves, metal… Severity: high.
NHTSA campaign 24V-817, part of Mazda recall 7024J, covers certain 2025 CX-70 PHEVs. Improper inverter software can activate a fail-safe that limits motor power while the vehicle is operating in EV mode. The malfunction indicator light illuminates and a warning chime may sound; l… Repairs typically run $0-$0. Severity: high.
Multiple CX-70 owners have filed complaints (including with NHTSA) describing the vehicle unexpectedly revving and lurching forward one to two seconds without accelerator input, typically at 1-5 mph while parking, creeping in a garage, or maneuvering in tight spaces. Reports note… Repairs typically run $0-$400. Severity: high.
CX-70 PHEV owners report a 'Hybrid System Malfunction' message in the instrument cluster accompanied by warning chimes, sometimes with related 'Electrical Leakage in Hybrid System Detected' or 'Charging System Malfunction' messages — including events that occur while charging at… Repairs typically run $0-$1,500. Severity: high.
Safety and emissions recall 7124J, NHTSA campaign 24V-814, covers certain 2025 CX-70 vehicles produced from December 5, 2023 through July 8, 2024. Improper Dash Electrical Supply Unit software can produce an error during startup, display multiple warnings, and prevent the windshi… Repairs typically run $0-$0. Severity: high.
Mazda recalled roughly 104,854 CX-70 and CX-90 vehicles because the instrument-cluster fuel gauge can display an inaccurate reading. When the tank is filled with ethanol-blended fuel, the ethanol can react with materials on the circuit board of the fuel-level sending unit, corrup… Repairs typically run $0-$0. Severity: medium.
A low lead-acid-battery warning, no-start condition, or cluster full of low-voltage messages can occur after the 12V battery has discharged, but the symptom alone does not prove a defective battery or a software-related parked draw. Mazda specifies different test inputs for the C… Severity: medium.
Some 2025 CX-70 complaints describe a clunk, hesitation, shudder, or abrupt engagement during low-speed starts and shifts. Mazda's Large-platform eight-speed uses a mechanical launch clutch instead of a fluid torque converter and relies on precise clutch-hydraulic feedback contro… Severity: medium.
A CX-70 PHEV charging session may not begin, may stop, or may show an amber or red indicator, but those observations do not identify a failed on-board charger, inlet, 12V battery, or charge cable. Mazda lists several non-parts conditions that can prevent charging: the selector is… Severity: medium.
On PHEV models, an 'Engine Malfunction / Have Engine Inspected' message and check-engine light can appear at startup with DTC P0531:00 (A/C refrigerant pressure sensor No. 1 system, function malfunction) stored. Mazda TSB 07-001/25 (issued January 2025) identifies the root cause… Repairs typically run $0-$250. Severity: medium.
Owners of the CX-70 and its platform-mate CX-90 report water leaking into the interior — wet rear cargo floor/spare-tire well, damp headliner near the top of the windshield, and water running down the passenger A-pillar in rain or melting snow. Traced sources include a poorly sea… Repairs typically run $150-$1,200. Severity: medium.
The rear-corner radar-based Blind Spot Monitoring system triggers false alerts, lighting up the mirror warning icons and/or sounding when no vehicle is present. Owners most commonly report this at highway speed, in rain or on wet roads (spray from other vehicles hitting the bumpe… Repairs typically run $0-$900. Severity: medium.
NHTSA complaint 11671136 reports that driver-side window-pillar trim and an Inline-6 emblem on one 2025 CX-70 appeared to melt or deform when the outside temperature was about 90 degrees Fahrenheit. The report says a dealer replaced the first two pieces and discussed coverage of… Severity: low.
Mazda documents specific Mazda Connect software faults on applicable 2025-2026 CX-70 vehicles. Depending on the installed NA05 software version, the system may reboot at ignition-on, freeze on the disclaimer screen, show a black SiriusXM screen, fail to start voice recognition, c… Severity: low.
As a first model year vehicle, the 2025 CX-70 PHEV experiences powertrain software calibration issues including jerky transitions between electric and gas power, hesitation from stop, and the gas engine starting unexpectedly in EV mode. The hybrid system's calibration for engine-… Repairs typically run $0-$0. Severity: low.
Mazda documents a rattle or vibration from the liftgate area on specified early-production 2025 CX-70 vehicles when driving on rough roads. A gap at the attachment between a side-spoiler metal clip and the rear spoiler can let the parts vibrate. A noise heard from the rear cabin… Severity: low.
On specified early-production 2025 CX-70 vehicles equipped with the panoramic sunroof, Mazda documents a rattle or vibration around the front map light while driving on a rough road. Heat or vibration can deform the fastener that holds the map light to its bracket, loosen the joi… Severity: low.
As a new model on the Mazda Large Product platform, the CX-70 has experienced typical first-model-year infotainment software issues including occasional screen freezes, Bluetooth connectivity drops, and wireless Apple CarPlay/Android Auto disconnections. Mazda has been releasing… Repairs typically run $0-$0. Severity: low.
Mazda documents reports of a fuel-filler door that is stuck closed on 2025-2026 CX-70 Inline-6 vehicles. The fuel door locks with the vehicle and can be configured to lock 0, 30, 60, 90, or 120 seconds after the doors lock; unlocking has no delay, but the door must first have bee… Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.