Is the car alarm at midnight related to sensors?
2 Answers
Car alarms at midnight are related to sensors. The automatic alarm is caused by the activation of the vehicle's anti-theft system, which triggers the anti-theft horn alarm. Below are relevant introductions about the car's automatic alarm: 1. The anti-theft device's sensitivity is too high: Generally, the most common reason for the car's anti-theft horn to sound automatically is that the sensitivity of the anti-theft device is too high, causing the device to sound the alarm with even the slightest vibration. If it is confirmed that there is no risk of theft, no active people, animals, or objects inside the car, the sensitivity can be adjusted downward. 2. Problems with anti-theft components or circuits: Another reason is that the anti-theft device components or circuits have issues, leading to false alarms triggered by the system. It is necessary to promptly go to a repair facility for an electrical system inspection. After identifying the problem, repair or replacement can solve the issue.
I just encountered a similar issue. The car alarm suddenly went off in the middle of the night, which was really annoying and kept me awake. Later, I took it to the repair shop and found out it was indeed a faulty vibration sensor. It might have been triggered by tree branches hitting the car body due to wind, as I parked near some trees. The sensor acts like the car's 'ears,' monitoring surrounding movements. Things like a stray cat jumping on the roof or significant temperature changes causing expansion and contraction can also trigger false alarms. Sometimes, sensors malfunction due to aging or dust buildup, so it's advisable to have regular maintenance checks, especially when parking outdoors—choose a sheltered spot. I've also developed a habit of checking the sensor sensitivity settings before locking the car, adjusting it to a moderate level to avoid unnecessary disturbances.
