Why does the car automatically lock when the key is inside?

[DiNorah]

There is a vehicle search function. After turning off the engine with the car key and closing the windows, the car key can be used to control and only open the driver's door. Below is relevant information about car keys: 1. Number of keys: Vehicles come with 2-3 spare keys. When a new car is handed over to the owner, sales personnel usually remind the owner to keep the keys safe. 2. Key code: The new car keychain consists of 2-3 keys and a metal or plastic piece. On the metal or plastic piece, there is usually a string of numbers printed, which is the key code. Service stations or manufacturers can use this key code to reconfigure keys for the owner.