What is needed to duplicate a car key?
4 Answers
Bring the vehicle key, motor vehicle license, ID card, or proof that the driven vehicle belongs to you. Below is an introduction to the time required for key duplication: 1. Variation: The specific time may vary slightly depending on different vehicle brands. 2. Key matching: If it's just key matching, meaning no new key is added. Matching the original key with the vehicle's anti-theft system doesn't take long, usually around 2 to 3 hours, but this is under the premise of having professional maintenance diagnostic equipment and skilled technicians. 3. Lost key: If it's due to a lost key, adding or replacing a key or changing all the lock cylinders, the required time will be longer as it involves the security of the anti-theft system.
Last time I lost my car key and was really anxious. To get a new key made, you need to prepare a few things: first, you must have the vehicle's VIN number, as it's the unique identifier used to check the car model information; second is the key code—if the original key is still around, it's straightforward to replicate the shape and chip, but if it's lost, you'll need to retrieve the information from the manufacturer. I usually go to a 4S shop or an authorized dealer, bringing my driver's license and vehicle registration to prove ownership and prevent misuse by bad actors. During the process, they use professional equipment to program the key chip, and if it involves a remote, they also need to match the radio frequency. Cost-wise, a regular mechanical key can be done for a few hundred yuan, while a smart key might cost over a thousand, taking about one or two hours. Remember to regularly back up your key codes to avoid being caught off guard.
When it comes to car key duplication, I’ve observed clearly in my work environment: the key lies in vehicle identification data, such as the VIN—without it, you can’t match the exact model. Then, you need to prepare the key blank and matching chip. For electronic keys, a diagnostic tool is required to scan and program the car’s computer. If the customer forgets the original key, the system often needs to be reset, which takes extra time for verification. Security-wise, checking the customer’s ID is a must to prevent misuse. In practice, I recommend going to a certified locksmith or dealership—they have the proper tools to get it done right. On average, it takes over half an hour, depending on the car model’s complexity. DIY attempts often lead to mistakes, causing delays and extra costs.
I enjoy tinkering with my car in my spare time and have tried money-saving methods for key duplication: purchasing matching key blanks, then manually cutting them to match the original key shape or using machine services. For the electronic components, you'd need to buy a programmer and software, but compatibility issues are common and could potentially lock the system. A VIN number or the original key is required as a reference, otherwise it's all for nothing. Experience has taught me that this is only feasible on older, non-chip cars—don't risk it with new ones. The security risks are high, increasing the chance of theft. Overall, the savings are minimal, and it's quite a hassle.
