Why does my Mazda 3 car alarm goes off for no reason?

Your Mazda 3's alarm may go off for several reasons, including a malfunctioning key fob, low battery voltage, or issues with the alarm system itself. Environmental factors, like strong winds or passing animals, can also trigger the alarm unexpectedly. Additionally, faulty sensors or misaligned door locks might cause the system to activate erroneously. It’s advisable to check the user manual or consult a mechanic for a thorough diagnosis.