Why does the Buick Excelle alarm keep sounding?
2 Answers
The reasons why the Buick Excelle alarm keeps sounding include the alarm being overly sensitive, faulty door contact switches, etc. The details are as follows: Alarm being overly sensitive: The alarm is too sensitive, so even slight movements around the car can trigger continuous sounding. This can be adjusted. Faulty door contact switch: A faulty door contact switch can also cause the alarm to sound. It needs to be repaired at a service center. Excessively high sensitivity of the anti-theft sensor: The sensitivity of the anti-theft sensor is too high, but this can be adjusted. There is a sensitivity adjustment knob on the anti-theft vibration sensor, and slight adjustments can resolve the issue. Working principle of the alarm: When the sensor is struck or shaken, causing vibration, a small ball rolls inside the cylinder chamber. When it rolls away from a smaller secondary electrical contact element, the circuit formed by this secondary contact element and the central electrical contact element is broken. At this point, the switch opens, indicating to the controller that the ball has moved.
The Buick Excelle alarm keeps going off, and I've encountered this issue several times. There are a few common areas that need to be checked. First, the doors may not be closed properly, including the front doors, rear doors, and trunk. If the door lock sensors are dusty or have debris, they may mistakenly think the door is open, causing the alarm to keep sounding. Second, the key fob battery might be running low, causing the proximity sensor to malfunction, and the alarm goes off with just a light touch. Third, the vibration sensor might be too sensitive, triggering the alarm even with minor vibrations when parked on the roadside. Alternatively, unstable voltage or insufficient battery power can make the entire anti-theft system unreliable. Here are some suggestions to try first: check if all door switches are securely closed and clean the lock slots; replace the key battery; park on a flat surface to see if the issue persists. If the problem continues, it's best to visit a professional shop to test the electronic modules to avoid further frustration.
