How to Solve the Alarm When Opening the Car Door with a Key?
2 Answers
Simply turn on the "AUTO" automatic lights or turn off the lights to resolve the issue, or turn on the power to stop the alarm. Here is some related information about the car door alarm: 1. Principle: When the sensor is struck or shaken, causing it to vibrate, a small ball will roll inside the chamber. When the ball rolls away from a smaller secondary electrical contact element, the circuit formed by this secondary contact element and the central electrical contact element will be broken. 2. Reasons: The reason the alarm sounds when opening the door may be that the car lights were not turned off, or the small lights were left on. It could also be because the door was locked using the remote control, and then opened with a mechanical key, which might trigger the door opening alarm.
I've been driving for over a decade and have encountered several situations where the alarm kept sounding when using the key to open the door. This is usually because the car's anti-theft system wasn't properly deactivated. Most of the time, it's due to a broken remote or dead battery, so trying a new battery might help. Some car models are designed to require remote unlocking first before using the key; otherwise, the system assumes someone is trying to steal the car. If you accidentally trigger the alarm, you can immediately sit in the driver's seat and start the engine or press the deactivation button on the steering wheel. In the long run, it's advisable to check the anti-theft system and door lock fuses every six months to ensure they're in good condition. My own car once had a false alarm due to aging sensors, and replacing the part solved the problem. Never rush to pull out the key or force the car to start; first, turn off the alarm. For safety, always keep a spare remote at home for emergencies. If these DIY methods don't work, the most reliable solution is to visit a professional repair shop to diagnose the issue with fault codes, which isn't expensive.
