What does the 'hold' on a car key mean?
1 Answers
The 'hold' on a car key refers to the hold mode. This switch can be seen on the left side of the gear lever. The function of the hold mode is to keep the car in a specific gear range, allowing it to be driven like a manual transmission. For example, if the car is driving in third gear and the hold switch is pressed, the car will continue to drive in third gear. Below is more information about how car keys work: 1. Active working mode: The principle is to control the car door through the vehicle's electronic module and body control module. Simply press the key button to send an unlock or lock command, and after verification by the vehicle's electronic module, the door can be opened or closed. 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 where the key has no power but the car still needs to start normally. 3. Passive working mode: When entering the sensing area of the key system, as long as the hand touches the door handle, the carried 'key' with identity recognition will receive a low-frequency signal sent by the car. If this signal matches the identity recognition information stored in the 'key,' the 'key' will be awakened.
