Can a Spare Key Be Used to Duplicate a Car Key?
2 Answers
It is possible to duplicate a car key using a spare key. Each remote key has a unique code that is also stored in the vehicle's anti-theft system. To duplicate a new remote key, this code must be matched with the one in the car. It is recommended that car owners visit an authorized 4S dealership to ensure the security of their vehicle. Time Required for Key Duplication: The process of duplicating a key does not take very long. For most standard car models, it can usually be completed within two to three hours. However, depending on the security level of the key for different car models, coding and matching may take some time, typically a few hours. Some car models may also require an advance appointment for key duplication, as the specific code is determined based on information such as the vehicle identification number (VIN). Key Duplication Process: First, the 4S dealership submits a request to the manufacturer's system. The manufacturer then sends the vehicle's security code to the dealership. Next, the dealership uses a blank key and matches it with this code. At this point, the electronic remote part of the key is completed. Finally, the mechanical part of the key is made by traditionally cutting the key blade to match the lock.
Last time I lost my car key, I quickly took out the spare one to see if I could get a new one made. I went to the local 4S store, and after checking, they said it was no problem. They just needed to scan the chip of the spare key with a special device to duplicate and program a new key. The whole process only took half an hour, and the cost was around five or six hundred yuan. Although it wasn’t cheap, it was very hassle-free. Most modern car keys are electronic with built-in chips, so simply copying the shape won’t work—the signal must be matched. I recommend that if you lose a key, take the spare to a professional place first to avoid delaying your driving and affecting your life.
