First, the car battery is out of power, resulting in the vehicle can not receive signals;
The second is that the remote control key is out of power, which can not open the door. In this case, do not worry, each remote key is equipped with a mechanical key, we can open the door through the mechanical key. When the mechanical key is used to open the door, it will trigger the anti-theft system of the vehicle, because each remote control key is equipped with a chip, and the chip has an ID code that matches the car, and each ID code is unique. Although the mechanical key can open the door, the vehicle does not receive the signal from the remote control key, so it will trigger the anti-theft system.