What to do if the Tiguan car key is lost?

[DelHeidi]

Tiguan lost the key can use the spare key, or go to the 4s shop to replace the remote key. The following is the working principle of the remote key: Active working mode: The principle is to control the door through the body electronic module (ECU, Electronic Control Unit) and the body control module (BCM, Body Control Management). Just press the key button to send the unlock/lock command, and after verification by the body electronic module, the door can be opened/closed. Coil induction working mode: Mainly by placing the encrypted chip in the key, in the process of unlocking, the radio frequency transceiver of the body verifies whether the key matches to decide whether the engine can be started. It is mainly used in special cases when the key is out of power and the car can still start normally. Passive working mode: When the owner enters the sensing area of the key system, as long as the hand touches the door handle, the identity recognition key carried will receive the low-frequency signal sent by the car. If this signal is consistent with the identity recognition information stored in the key, the key will be awakened.