What should I do if I lose the car key?

At present, the car keys of common models are generally divided into three types: mechanical keys, remote control keys, and chip keys.
●Mechanical key
-Usually two mechanical keys are delivered when buying a car. Losing the mechanical key is the most convenient and troublesome. The convenience is that the main key and the spare key of the mechanical key are exactly the same.
-After the master key is lost, you can go to the place where the key is assigned. Just match it as a spare key. If the secondary key is not found, you can only replace the whole car lock. If someone finds the key, it can be very easy Just drove the car away.
●Remote control key
-Ordinary remote control key is a remote control + a mechanical key. If one of the remote controls is lost, you only need to take the spare remote control and the newly purchased remote control, and take them to the 4S store to re-match the car, and the lost remote control will become invalid.
-If the remote control and the mechanical key are lost together, it is not enough to re-match the remote control. The person who finds the key can also use the mechanical key to open the door. If the remote control and the mechanical key are lost together, it is not enough to re-match the remote control. The person who finds the key can also use the mechanical key to open the door.
●Chip key
-At present, many car models have a chip in the car key, which is used as an engine anti-theft. When the key is inserted into the keyhole and turned to the "ON" gear, or the key of a model with keyless start function is in the car, the engine will "communicate" with the key. If the "password" on the chip is consistent with the information stored in the anti-theft system, it can be started engine.
-If the chip key is lost, you can buy a new key, take the spare key and the new key, and re-match it at the 4S shop. At this time, the person who finds the key can only use the mechanical key to open the door, but cannot start the engine.