Resetting the 2022 Mazda3’s anti-theft system is very straightforward and involves inserting the transponder key into the ignition.

An illuminated security light indicates a fault in the car’s anti-theft immobilizer system. Try a new key or go to a mechanic to get it fixed.

Hit the panic button to turn off your alarm. Try to lock and unlock your doors and open the drivers door and trunk. Look at the owner’s manual if it won’t stop.