How Does A Car Key Fob Work?

Garbage

Well, that pretty much explained it all.....LOL!

For my Canadian Hyundai Sonata PHEV 2016, if you want to disable the Car Key Fob, Hold the Key Fob Lock Button 4 seconds. After the 4 seconds, Keep Holding the Car Key Fob Lock but also press the Car Key Fob Unlock Button for 2 seconds. This will stop the continuous RFID signal from Key Fob. If you try to open the car door by pressing the button on the car handle, it will not open (unless you have another set of the Car Key Fob still emitting with you). Another benefit to disable the Car Key FOB, the battery last longer. If you want back the continuous RFID signal, just press the Key Fob Unlock Button. This will keep your car to be stolen by thieves with relay attack where ever you are. Make sure to do this for all the other Car Key Fob of the same car (especially when you are at home) unless it will allow thieves to relay attack because they will catch the rfid signal of the others Car Key Fob.