There are 7 owner-reported driver assist & adas complaints for the 2020 Mazda CX-5in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
While driving my vehicle the systems sensors are affected by nearby drivers which cause the car to stall in the middle of traffic going between 40 and 75 miles per hour.
The vehicle reboots the screen/infotainment system while driving. The dealership has updated the software and replaced the screen (Screen was at my cost). They reset the codes and it comes back. This is a safety hazard as it could cause non compliance with the FMVSS in regards to rear-view cameras being required. There is currently a settlement in place under a class action.
My car has started braking when objects arnt there almost causing a crash Mazda denies this
Emergency braking brought car to a complete stop while traveling around at approx. 35 MPH with no car or anything else in front of the car on a wide and clear town street. Car would then not go into park and only after a couple of mins did it go into park and car was able to be driven.
Automatic Emergency Braking (Mazda's Smart City Braking Feature) will randomly trigger even when there is no vehicle/person/object/obstruction present in the road infront of you. It has occurred going over railroad tracks and made by car go from 30 mph to 0 in a second. It has occurred switching lanes into an empty lane and triggered it. It has also picked up the center medians as an object it should hit the emergency brake for. This is insanely problematic when a vehicle is following behind you and this system is essentially brake checking them out of nowhere. In the past, dealers have said to just turn the sensitivity down. This does not fix it. In addition, I have gotten "BRAKE" warnings from the car on the highway (does not engage because I am at a speed faster than the emergency braking allows) but this is quite unnerving when you are on an open highway going 75 mph and your car is wanting you to brake.
I was traveling behind a propane truck, that was going to make a right turn. I disengaged the adaptive cruise control by tapping on the break. I began coasting to a stop, suddenly the car began accelerating again with no warning. I was forced to make the turn with the propane truck and side swiped the truck in the process.
The contact owns a 2020 Mazda CX-5. The contact noticed that while driving at approximately 70 MPH, the passenger blind spot monitoring light and sound failed to operate. The contact mentioned that the vehicle failed to let her know when a vehicle was nearby her. The vehicle was taken to the dealer where they reset the monitor however, the failure recurred days later. The contact mentioned that the failure recurred several times. The manufacturer was not notified of the failure. The approximate failure mileage was 10,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026