Can the car start with one button if the key is not in the car?

[StKatherine]

Can the car start with one button if the key is not in the car? Car keys are divided into primary keys and spare keys, and the differences between them are: 1. Different appearances: the primary key has buttons; the spare key is a regular key. 2. Different types: the primary key is remote-controlled and can unlock the doors remotely by pressing the buttons when near the car; the spare key is a mechanical key, which must be inserted into the door's keyhole to unlock the door. Precautions for using car keys include: 1. Avoid leaving the spare key inside the car; 2. Avoid contact with metal objects; 3. Avoid using the wrong battery model when replacing the key battery; 4. Do not throw or drop the key carelessly; 5. Avoid placing the key near electronic devices.