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Mazda Electrical System Recalls Affect Warning Displays and Drive Power
Mazda's electrical recalls repeatedly involve software affecting information displays or vehicle functions, alongside a wiring defect in certain 2018 CX-9 vehicles. The CX-70 and CX-90 appear most often: inverter software affects certain 2024 CX-90 and 2025 CX-70 plug-in hybrids, while Dash Electrical Supply Unit software affects certain 2024-2025 CX-90 and 2025 CX-70 vehicles. A separate fuel-gauge recall covers certain mild hybrids with those same model years. These defects involve different systems and remedies. For certain 2019 Mazda3 vehicles, incorrect programming can turn off passenger airbag and seat belt status indicators incorrectly. The CX-9 wiring problem can disable the passenger airbag, turn signals, or engine starting system.
Warning signs to watch for
- Recall 3419E: Turn signals or the engine starting system may not work.
- Recall 7024J: Malfunction indicator lights may illuminate, and drive power may be lost in EV mode.
- Recall 3319E: Passenger airbag or seat belt status indicators may turn off incorrectly.
- Recall 7124J: The defroster, seat belt warning, or 360° view monitor may not function properly during startup.
- Recall 78251: The fuel gauge may show an inaccurate reading; the vehicle may unexpectedly run out of fuel and stall.
Can you keep driving? What the notices say
None of these five Mazda recall notices tells owners to stop driving or park outside. That includes the CX-9 wiring recall 3419E, Mazda3 indicator recall 3319E, inverter software recall 7024J, Dash ESU recall 7124J, and fuel-gauge recall 78251. The notices describe injury or crash risks from disabled protection, signaling problems, loss of drive power, malfunctioning electrical functions, or fuel-related stalling. They do not provide a stop-driving instruction for any of these conditions, and they do not establish that an affected vehicle is safe to drive.
What the free repair involves
Repairs are free of charge. Dealers repair CX-9 wiring harnesses under 3419E and replace the Mazda3 indicator assembly under 3319E. For 7024J, they install improved inverter software. For 7124J, they reprogram the Dash ESU. For 78251, they update body control module software.
Severity at a glance
| Severity | Recalls |
|---|---|
| high | 2 |
| medium | 3 |
Models affected most
Where owners report electrical system problems most
NHTSA owner complaints filed under electrical system for the Mazda models and years in this guide. Complaints are unverified reports and are not limited to the recalled defects.
| Vehicle | Electrical system complaints |
|---|---|
| 2018 Mazda CX-9 | 15 |
| 2019 Mazda MAZDA3 | 11 |
| 2025 Mazda CX-90 | 5 |
| 2025 Mazda CX-70 | 4 |
Every recall in this group
| Date | Recall | Severity |
|---|---|---|
| Sep 2, 2025 | Mazda CX-70, CX-90 Fuel Gauge May Read Wrong | medium |
| Oct 31, 2024 | Mazda CX-70 and CX-90 Electrical Unit Software Issue | medium |
| Oct 31, 2024 | Mazda CX-70 Hybrid Inverter Software May Cut Power | high |
| May 30, 2019 | Mazda CX-9 Wiring Fault Disables Airbag, Signals | high |
| May 14, 2019 | Mazda3 Airbag and Seat Belt Warning Lights Wrong | medium |
Common questions
Which Mazda CX-70 and CX-90 hybrids have the fuel-gauge problem?
Recall 78251 covers certain 2024-2025 CX-90 and 2025 CX-70 mild hybrid vehicles. Their instrument-cluster fuel gauge may display an inaccurate reading, potentially leading to unexpected fuel exhaustion and stalling. Dealers update the body control module software free of charge.
Why might my Mazda3 passenger airbag indicator turn off incorrectly?
Recall 3319E identifies incorrect programming in certain 2019 Mazda3 vehicles. The passenger airbag deactivation indicator may turn off although the airbag is deactivated. Seat belt status indicators can also turn off incorrectly. Dealers replace the indicator assembly free of charge.
What does Mazda's inverter recall say about losing power in EV mode?
Recall 7024J covers certain 2024 CX-90 and 2025 CX-70 plug-in hybrids. Improper inverter software may illuminate malfunction indicator lights and cause loss of drive power in EV mode. The notice does not tell owners to stop driving; dealers install improved software.
A recall applies only to specific vehicles. Check your 17-character VIN at nhtsa.gov/recalls.