1. First, push the switch up from behind the car key and take out the mechanical key.
2. Then press the mechanical key against the gap on the car key, and then expose it by force.
3. pry open the back cover of the car key, then take out the old battery and replace it with a new one.
4. Finally, close the rear cover of the car key and reinstall the mechanical key.
It is not necessary to remove the mechanical key to replace this key battery. There is a button on the back of the key. We can push the back shell of the key and hold down the button to take it off. At this time, put the key in the position where the button is facing up, and there is a battery bracket on the right side of the key core, which can be fastened with nails and pulled out horizontally. We can take out the battery holder and change the key.
Pay attention to protection
Before replacing it, it is best to know the model of your car key battery, which will usually be written in the owner's manual, and then choose a new key battery according to the specified model. Once the remote control key enters the water, don't throw it hard with the key, and don't press the buttons on it. This is the easiest way to let water seep into other important lines, and don't unlock it immediately with the remote control, because this may cause the circuit board to burn out.
In daily use, some of our actions are easy to damage the car keys, that is, falling from the sky. It is estimated that many car owners have tried to use the keys as toys for their children, but the children are not sensible and throw them around. Because the internal circuit of the key is actually weak in impact resistance, it is easy to be damaged in the case of serious collision.