How to Duplicate a Car Key Without the Original?

1 Answers
Elena
07/29/25 9:33pm
Without the original key, you can visit a 4S dealership to have a new remote key duplicated. The 4S dealership can perform password matching based on the car's smart system. When duplicating a new key, the original key's encryption code will be invalidated, and a new set of encryption codes will be input. After activation, one of the previously reserved electronic keys must be selected for matching activation. A car key is a type of wireless remote control that encodes, modulates, and transmits high-frequency signals from the handheld end, while the car, as the receiving end, receives, demodulates, decodes, and unlocks. The remote key utilizes the wireless remote control function of the central locking system, allowing doors to be unlocked or locked from a distance without inserting the key into the lock.
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