2025 Mazda CX-30 electrical problems

ELECTRICAL SYSTEM

2025 Mazda CX-30 experienced a sudden complete loss of power while driving at highway speed with no prior warning lights or indications of malfunction. Immediately before shutdown, steering became extremely stiff due to loss of power steering assist. Vehicle was steered towards the shoulder during highway speed of 65mph and was electrically inoperable while rolling, this includes the loss of hazards, power steering and electronic brake lock engagement.

NHTSA complaint #11740473 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The vehicle has major electrical issues. The ABS and all over driver safety options would shut off for days at a time. I had purchased this cx30 as new on January 02, 2026. It totally died and wouldn't start on February 03, 2026. It had to ve towed by mazda roadside assistance to Towne Mazda dealer in Orchard Park NY. It is now March 12, 2026 and the dealer has had my vehicle for over a month. They put a new wiring harness in it ans other components. Very frustrating.

NHTSA complaint #11723758 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The contact owns a 2025 Mazda CX-30. The contact stated that the key fob had a slight dent, and after dropping the key fob, the key fob fractured into several pieces. The contact was unable to lock and unlock the vehicle using the key fob. The dealer was contacted and informed of the failure. The dealer advised the contact to purchase a new key fob. The key fob was not replaced. The manufacturer was made aware of the failure. The contact’s spouse's key fob had a similar failure, even though there was no dent in the key fob before the failure. The contact saw many online forums with the same defect. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was unknown.

NHTSA complaint #11717201 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

I have been having repeated issues with the doors not autolocking, liftgate functionality, rear seat sensor, and random (collision?) warnings/sensors - among other settings that keep coming undone (audio options, etc) since the purchase of this car that I have been diligently notating/timestamping- i have close to 200 occurences so far. Just submitting another report to let you know it is STILL happening and IS NOT user error.

NHTSA complaint #11714353 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

It seems like the computer has defaulted to receive the lowest possible gas mileage- if this is somehow communicating with the fuel system- its definitely affecting how much mileage I could be getting and robbing me of up to 100 miles per tank.

NHTSA complaint #11703823 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

At 1833 yesterday evening, the doors did not autolock.

NHTSA complaint #11703396 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

It 1833 the doors did not autolock

NHTSA complaint #11703397 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Iactive sensor indicated there was a/n (obstruction) or something preventing iactive from working (i dont remember what it said)? I dont remember- but either way- i find it distracting. It could not be turned off and was flashing repeatedly- telling me to drive safely ironically making me feel like I had to read it, in inclement weather, and take my eyes off the road.

NHTSA complaint #11703141 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Dash button for lift gate not working. Occasionally the doors dont autolock Both of these things have happened multiple times since I drove the car off the lot .

NHTSA complaint #11703366 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The vehicle has a built in wireless phone charger. When the charger is used for for more than > 10 minutes, the phone proceeds to heat up to the point it burns your hand when you take it off the charger. I have spoken to the dealer and the service advisor says this is “normal” and occurs in a variety of car models. Then he blamed my phone, but my phone does not heat when using any other wireless or plug in charger. I am concerned that the excess heat will result in the battery exploding as we have seen with other phone charger and laptop charger devices. Perhaps they honestly do not realize this is an is an issue, but do we have to wait until someone is seriously hurt before it is addressed?

NHTSA complaint #11697636 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The contact owns a 2025 Mazda CX-30. The contact stated that upon starting the vehicle, the messages "i-Activsense Malfunction", "In Vehicle Network malfunction" and "ABS Malfunction" were displayed. Additionally, several unknown warning lights were illuminated. The contact was able to drive to the residence. The vehicle was taken to the dealer, where it was diagnosed with an unknown harness failure; however, the part was not available to repair the vehicle. The vehicle was not repaired. The contact was provided a rental. The manufacturer was notified of the failure. The failure mileage was 71.

NHTSA complaint #11643903 — an unverified report by a vehicle owner.