I lost the car key, can I make a new copy? What are the hidden dangers?

Car engines come with or without anti-theft systems. Generally, cars priced above 80000 yuan will come with anti-theft systems, while cars priced between 50000 and 60000 yuan generally do not. Cars that do not even have a remote control must not come with anti-theft systems. If the car does not come with an anti-theft system, it can be equipped with a lost car key, which can be equipped in 4S stores or ordinary places with keys. Without an engine anti-theft system, as long as the tooth shape is correct and can be inserted into the lock cylinder, it can ignite without matching or programming, it is just an ordinary key. If the key is lost near frequent parking, the risk is relatively high. If someone finds it, they can either open the car door or drive away, which means the original key can still be used normally. Therefore, if you are not at ease or there are often valuable items placed in the car, the solution is to replace the entire car lock cylinder, and the original key cannot be used, but the cost is higher.

If the car is equipped with an anti-theft system, the key has a chip inside, and not all parts can be equipped, because in addition to the correct tooth shape that can be inserted into the lock cylinder, matching or programming of the anti-theft system is also necessary. Without matching, it will not ignite. So to match this key, you need a computer and can do anti-theft matching. You can only go to a 4S store or a professional place to claim car keys. Also, be careful not to easily start the car without matching it. Some cars may trigger the anti-theft system when starting, and after the anti-theft is activated, you cannot start the car with your own key. You need to first use a computer to disarm the anti-theft system.

Vehicles equipped with anti-theft systems have higher security when equipped with a key. When the new key is reprogrammed and matched, the lost key becomes useless and the vehicle cannot be started, so it cannot be driven. But the car door can still be opened because the door lock is a mechanical lock without electronic anti-theft, as long as the tooth shape is correct, it can be opened. Therefore, the biggest hidden danger is that the contents inside the car may be stolen, but the car will not be driven away. If you want to be foolproof, you can only replace the entire car lock cylinder.

Attention should be paid to the matching of keys here. If you only want to add a new key without losing it, you should bring all the keys with you when matching them, and all the keys need to be reprogrammed during key programming. Often, some people don't know how to carry only one key to match the key, resulting in inability to program and having to make another trip. If both keys are lost, it is possible to match them based on the tooth model of the new key at that time, but it is very troublesome. Most people cannot find the tooth model barcode, and even if there is a tooth shape number, many 4S stores do not provide it. For safety reasons, it is best to directly replace the entire vehicle lock cylinder.

From：WONDEE Auto parts

2024-7-1