Why Does the Car Lock When the Key is Inside?

[MacZoey]

If the vehicle is equipped with an automatic locking or anti-theft system, it is possible for the car doors to lock automatically when the key is left inside. However, vehicles with keyless entry systems will not experience this issue. The original design intention of the automatic locking feature is to prevent vehicle theft and enhance driving safety. After the doors are closed, the system will automatically lock them after a specified period of time to prevent situations where the owner forgets to lock the car after turning off the engine or where doors accidentally open during driving. When exiting the vehicle, always turn off the engine, remove the key, and carry it with you. If you must exit the vehicle while it is still running, ensure that the handbrake is engaged, the doors are not fully closed, or the windows are rolled down. Additionally, when retrieving items from the trunk, avoid placing the car key inside the trunk. Smart keys cannot be locked inside the car. When the key is left inside, an alarm will automatically sound as a reminder. Some high-end vehicles are equipped with keys that prevent the doors from locking automatically as long as the key is near the car. The doors will only lock when the key moves out of the sensing range. The "Keyless Entry System" for cars is not a traditional key but rather a smart key or smart card. The car keyless entry system, abbreviated as PKE, utilizes the world's most advanced RFID (Radio Frequency Identification) technology and vehicle identity coding recognition system. It pioneers the development of compact, low-power RF antenna solutions and successfully integrates remote control systems with keyless systems while maintaining traditional vehicle circuit protection. This achieves a dual RF system and dual anti-theft protection, providing maximum convenience and security for car owners. Precautions for using car keys: Do not leave spare keys inside the car or store them together with smart keys; avoid contact with metal objects. Contact with or coverage by metal items may cause smart keys to malfunction, and other items may also damage the smart key during bumps or jostling.