What are the most common Mazda CX-70 problems?
According to Au7o's analysis of 1+ owner reports, the 2025-2026 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.
Is the Mazda CX-70 reliable?
The 2025-2026 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.
How much does it cost to fix common Mazda CX-70 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.
What is the 2025-2026 Mazda CX-70 Reported CX-70 False Smart Brake Support Activation - Diagnosis Required?
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.
What is the 2025 Mazda CX-70 2025 CX-70 PHEV Recall 7024J: Inverter Software Can Cause Loss of Drive Power?
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.
What is the 2025-2026 Mazda CX-70 Sudden Unintended Low-Speed Acceleration and Forward Lurch?
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.
What is the 2025-2026 Mazda CX-70 Hybrid System Malfunction Warning with Engine Stall / Power Loss (PHEV)?
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.
What is the 2025 Mazda CX-70 2025 CX-70 Recall 7124J: Dash-ESU Startup Software Can Disable Safety Functions?
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.
What is the 2025-2026 Mazda CX-70 2025-2026 CX-70 Low 12V Battery or No-Start - Test Before Replacing?
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.
What is the 2025 Mazda CX-70 Inaccurate Fuel Gauge Reading (Recall 78251)?
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.
What is the 2025-2026 Mazda CX-70 CX-70 Low-Speed Clunk, Jerky Shift, or Hesitation - Diagnosis Required?
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.
What is the 2025-2026 Mazda CX-70 CX-70 PHEV Does Not Charge or Shows a Charge Fault - Isolate the Source First?
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.
What is the 2025 Mazda CX-70 "Engine Malfunction – Have Engine Inspected" Warning from A/C Refrigerant Pressure Sensor Logic (DTC P0531 / TSB 07-001/25)?
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.
What is the 2025-2026 Mazda CX-70 Water Intrusion into Cabin/Cargo Area (Liftgate Grommets, Sunroof/Roof-Rail Drains, A-Pillar)?
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.
What is the 2025-2026 Mazda CX-70 Blind Spot Monitoring (BSM) False/Phantom Rear-Corner Warnings?
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.
What is the 2025 Mazda CX-70 Reported 2025 CX-70 Heat-Deformed Exterior Trim - Inspect the Exact Piece?
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.
What is the 2025-2026 Mazda CX-70 2025-2026 CX-70 Mazda Connect Reboots, Freezes, or Smartphone Connection Faults?
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.
What is the 2025 Mazda CX-70 PHEV Powertrain Software Calibration Issues?
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.
What is the 2025 Mazda CX-70 Early 2025 CX-70 Liftgate Side-Spoiler Rattle on Rough Roads?
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.
What is the 2025 Mazda CX-70 Early 2025 CX-70 Front Map-Light Bracket Rattle Near the Panoramic Roof?
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.
What is the 2025-2026 Mazda CX-70 Infotainment System Software Updates Needed?
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.
What is the 2025-2026 Mazda CX-70 2025-2026 CX-70 Inline-6 Fuel-Filler Door Stuck Closed?
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.
