Hyundai Sonata panic alarm horn beeping randomly while parked, troubleshooting horn fuse replacement on Hyundai Sonata

Some Hyundai Sonata owners report experiencing random activation of the panic alarm horn while parked, which can be attributed to several issues such as hood switch pad malfunctions, faulty sensors, or a low key fob battery. Additionally, a weak 12V battery, accidental panic alarm activation, wiring problems, aftermarket alarm interference, and electrical disturbances may also trigger this issue. Owners have noted that a worn or damaged key fob can lead to unexpected alarm activations as well. To address these concerns, some owners recommend checking the condition of the key fob, inspecting the battery charge level, and ensuring the hood switch is functioning properly. In cases of suspected software glitches, disconnecting the car battery for a brief period may help reset the alarm system. Furthermore, checking and replacing a faulty horn fuse may resolve issues with the horn itself.