The number of remote controls can match up to 5, and the first one will fail when the sixth one is matched. Manual matching method: 1~ Close all doors, 2~ lock the door with the knob on the passenger door, 3~ Insert and pull the key into the electric door lock 6 times within 10 seconds [insert and pull out once]4~ all doors will automatically unlock, 5~ open the electric door lock to ACC within 3 seconds, while repeating step 2 6~ press any key of the remote control once, The door lock will move, 7~ this time to open the driver's door, this key is even with good.