How to Duplicate a Car Key?
2 Answers
Methods for duplicating a car key: 1. Purchase a key duplication kit; 2. Insert the matching device into the car's OBD interface all the way in without shaking or pulling it out; 3. Insert the original remote key and turn it to the ON position (where the dashboard lights up) and keep it in this position; 4. Use the provided awl to poke the switch inside the hole. At this point, you will see the LED light on the matching device flash once. Complete the operation within 10 seconds after the light flashes in the hole; 5. First press the unlock button on the first remote key, then press the unlock button on the second remote key. Wait for 10 seconds to finish. At this point, the key is duplicated. After testing and confirming it works normally, you can unplug the matching device.
I've done car key duplication a few times myself, and my experience ranges from simple to complex. If the key is purely mechanical, like those for older car models, you can easily get a copy made at a hardware store or locksmith stall—they'll machine-cut a new tooth pattern for about ten bucks, which is both secure and affordable. However, modern car keys with chips or remote functions are trickier; they require programming to pair with the vehicle. Last time I lost a key, I had to visit a 4S shop. They used professional equipment to connect to the car's computer port, input the original code to sync the system, and only then could the new key start the engine. It wasn’t cheap—cost me over 300 yuan. DIY? Nearly impossible unless you have diagnostic tools, and mistakes could cause malfunctions. My advice: don’t skimp on this—safety first. Always choose official channels to avoid illegal copies and potential trouble. Also, remember to keep a spare key at home for emergencies. Some smart keys even offer APP controls now—worth a try, but beware of hackers exploiting vulnerabilities!
