How to Match a Car Key After Duplication?
2 Answers
Car key matching method after duplication is as follows: 1. Use the spare key to turn on the ignition switch; 2. Outside the door, turn the key toward the lock direction and hold it; 3. Press the unlock button on the remote once; 4. After five seconds, press the unlock button again, and the door lock will automatically open, completing the key setup. The functions of a car key include: 1. Automatically closing windows after turning off the engine; 2. Conveniently locating the car in a parking lot; 3. Automatically opening the trunk; 4. Remotely opening windows. Precautions for replacing car key batteries are: 1. Wrap the tip of the screwdriver with cloth when disassembling the key to prevent damage; 2. Avoid exposing the disassembled key and circuit board to water and keep them as dry as possible; 3. Do not touch the components on the circuit board; 4. Ensure the new battery model matches the old one.
As an experienced driver who has been driving for many years, I have extensive experience in making car keys myself. After making the key, the matching process varies by model: for older cars like the Passat, simply insert the original key, turn it to the ON position without starting the engine, wait for the anti-theft light to go off, then insert the new key and turn it a few times to complete the process. Newer cars are more complex, such as the Tiguan, which requires connecting to a computer via the OBD port for programming. I've tried it a few times—tools can be rented online, and following YouTube tutorials can save you thousands of dollars in dealership fees, but be careful not to make mistakes in the steps, as a wrong move could lock the system and require a tow truck. After matching, test the ignition and remote functions to ensure the key can unlock the door and start the car before considering it a success. Different car models from different years have varying anti-theft systems; most post-2010 models require programming, so check the manual or forum guides in advance. Safety first—don’t force it if you lack the proper tools at home.
