What to Do When the Car Key Doesn't Open the Car?

[Nguyen]

You can use the spare mechanical key to open the car door and check whether the indicator light on the remote flashes when unlocking. If it doesn't flash, the issue lies with the remote key itself. If it flashes but the vehicle's central locking system doesn't respond, you should troubleshoot the unlocking circuit of the central locking system. Here is some information about car keys: 1. A car key is a tool used to switch the car on and off. Modern car keys all use chips, which are part of a magnetic chip system. The reading coil in the car's ignition lock cylinder will read the chip in the key; each chip has fixed digital information. 2. A remote key refers to a key that can lock and unlock the car from a distance without inserting the key into the lock.