What 107 owners told NHTSA about the 2018 Mazda Mazda3 Sedan

The collision warning light and lane assistance light come on frequently. It used to just be when the weather was under 40 degrees and the car was cold. However, it now happens all the time. It seems to go on and off for no reason. Additionally, the infotainment system keeps switching radio stations or ghosting without anyone touching it. It also drops Bluetooth connectivity constantly.

NHTSA ODI 11593200

I took my vehicle into RBMC dealership due to the vehicle was experiencing electrical issues and had an open recall / still does. The dealership said I can’t have a dash cam plugged in to a charging port. FCM / LDW / E-Break staying on / throwing error codes = C1001 FSC failure type 97 & U3003 EPB control module power supply failure type 16. They gave me back the car the battery failed the next day and when I called them they banned the VIN of this car to ever return to them. ( the battery was under factory warranty) the issue has only gotten worse and removed my dash cam as they demanded and now I can’t get the car fixed and the issue has gotten worse then taking the car to this dealership less then 30 days ago. They also did not perform the recall when the car was there. The car now has the fallowing codes B13D3 / C1001 / U3003 & possibly more codes because the whole dash is flashing auto light / fcm/ LDW and Break. My [XXX] grandma can’t even take the car in to get fixed the refuse to touch it after it had issues when they gave it back to us and it’s under a extended warranty and was a CPO and has a extended warranty through Mazda. Car only has 31k miles on it and is dangerous for her to drive and myself. Issue has been on going for over a month. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11582867

About a year ago, I noticed multiple warning lights on my car on, including the traction control, ABS, emergency brake, tire pressure indicator, etc. I took my car to the dealership where they diagnosed the problem as related to a faulty speed sensor. I have been reading consumer info on Mazda forums and it appears numerous people are impacted by this, which leads me to wonder if it may warrant assessment for a potential recall. My vehicle had under 35k miles on it when the issue first presented.

NHTSA ODI 11570191

The contact owns a 2018 Mazda Mazda3. The contact stated while driving 20 MPH, the Automatic Emergency Braking (AEB) warning light illuminated. The contact then slammed on the brakes and pulled to the side of the road. The contact stated that the failure had been reoccurring. The contact stated that when the failure occurred, she would shift into reverse(R) and shift back into drive(D) and wait for the AEB system to disengage. The contact stated that the failure had been reoccurring several times within a 10-minute drive. The contact stated that the vehicle had become undrivable. The contact's father, an independent mechanic, diagnosed that the AEB system software and wiring were faulty. The dealer and the manufacturer were notified of the failure and informed the contact that they could not assist as the year of the vehicle was not included in an unknown recall. The vehicle was not repaired. The failure mileage was approximately 80,000.

NHTSA ODI 11512151

warning lights FOR ABS

NHTSA ODI 11484765