What to Do When Car Key Buttons Are Broken?

[OEverett]

Car key buttons broken need to be replaced at a 4S shop. Below are three types of introductions regarding the usage methods of car keys: 1. Active working mode: The principle is to control the car door through the vehicle's electronic module. Simply press the key button to send an unlock/lock command, which, after verification by the vehicle's electronic module, can open/close the car door. 2. Coil induction working mode: Mainly involves placing an encrypted chip inside the key. During the unlocking process, the vehicle's RF transceiver verifies whether the key matches to determine if the engine can be started. This is primarily used in special situations when the key is out of battery, allowing the car to still start normally. 3. Passive working mode: When the car owner enters the sensing area of the key system, as long as the hand touches the car door handle, the carried identification "key" will receive the low-frequency signal sent by the car. If this signal matches the identification information stored in the "key", the "key" will be awakened. After being awakened, the "key" will analyze the authentication command sent by the car and send corresponding signals, which are encrypted to enhance security.