How to Replace the Battery in a Car Remote?

[Mario]

The method for replacing the battery in a car remote is as follows: 1. Insert a tool into the gap on the side of the key and apply slight upward force; 2. Move along the gap to both sides to gradually widen it; 3. Remove the back cover, take out the old battery, replace it, and then reassemble the cover in the reverse order. The working principle of a car remote when locking the vehicle: When the owner presses the button on the key, the key end emits a signal containing corresponding command information. The car's antenna receives the radio signal, and after authentication by the Body Control Module (BCM), the actuator performs the locking action. The remote door lock system consists of: 1. Transmitter; 2. Receiver; 3. Remote door lock control module; 4. Door lock control module; 5. Actuator.