How to Replace Car Keys When All Are Lost?

1 Answers
Harley
07/30/25 9:03am
Every vehicle comes with an anti-theft code configured by the manufacturer. The car owner only needs to provide the vehicle license and identification information to the 4S dealership, which can then retrieve the vehicle's anti-theft code based on the provided information to configure a new key. Below is a classification of car key chip types: 1. Fixed Code: The code remains unchanged, consisting of numbers and letters (the data does not change when starting the engine). 2. Rolling Code: Each button press generates a different electronic code, but the code only changes when you use the key to start the vehicle engine. For example: Even if the chip's encoding is completely copied, it is difficult to crack through duplicating the chip's memory because the chip password changes dynamically each time the engine is started. 3. Two-Way Dynamic Password: The latest chip and chip controller (two-way data encryption) use encrypted codes. They are equipped with internal program algorithms to decrypt each piece of encrypted information.
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