What Causes a Car Alarm to Go Off for No Reason After Locking?

1 Answers
McCayden
07/30/25 5:08am
The reasons why a car alarm goes off for no reason after locking are: 1. The anti-theft device's sensitivity is too high. There is a sensitivity adjustment knob on the vibration sensor of the anti-theft device, which can be fine-tuned slightly; 2. A fault in the main control door's ground wire, commonly known as a door switch fault. The alarm adjustment box is usually located under the dashboard and has adjustment knobs that can be tweaked by oneself. Alternatively, one can seek help from the professional who initially installed the alarm for debugging. An alarm is a device installed in a car that triggers when someone hits, impacts, or moves the vehicle. The sensor sends signals to the controller indicating the vibration intensity, and based on this, the controller emits a warning sound or fully activates the alarm.
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