Where to replace the car key battery when it runs out?

[LeMia]

When the car key runs out of battery, you can replace it yourself or go to a professional car key replacement shop. The steps to replace the battery yourself are: 1. Press the button on the remote control to pop out the key, which makes it easier to operate when opening the cover; 2. Use a screwdriver to open the cover, feel the gap of the remote control with your hand, and pry it upward in the middle to loosen it; 3. After selecting the appropriate battery, install it and close the cover. The car key uses the wireless remote control function of the central locking system, allowing you to remotely open and lock the door without inserting the key into the lock. The working principle of the car key is that it first emits a weak radio wave from the key, which is received by the car antenna. The electronic control unit then identifies the signal code, and the actuator (motor or electromagnetic coil) of the system performs the action of opening or closing the lock.