There is no difference between the two keys of a new car. Newly manufactured cars usually come with two keys, which are identical in both appearance and functionality for the convenience of the owner. Both the primary key and the spare key can be used to lock and unlock the vehicle. If one key is accidentally lost, the other can still be used to start the car. Additional Information: Car keys can be categorized into three types: 1. Mechanical Keys: The advantage of mechanical keys is that the primary key and the spare key are completely identical. If the primary key is lost, you can simply purchase a key blank and have it cut to match the spare key. The downside is that if someone finds the lost key, they can easily open the door and start the vehicle. 2. Standard Remote Keys: A standard remote key consists of a remote control and a mechanical key. If one remote is lost, you only need to take the spare remote and a newly purchased remote to a 4S dealership to have them reprogrammed to the car. The lost remote will then become invalid. 3. Chip Keys: If a chip key is lost, you can buy a new key and take both the spare key and the new key to a 4S dealership for reprogramming. In this case, the person who finds the lost key can only use the mechanical key to open the door but cannot start the engine. Of course, the most permanent solution is to replace the mechanical lock.
