The driver can select the initial warning activation time on the LCD display.

Go to the "User Settings in the cluster → Driver Assistance → Warning timing → Normal/Late".

The options for the initial Forward Collision Warning includes the following:

Normal: When this condition is selected, the initial Forward Collision Warning is activated normally.
Late: When this condition is selected, the initial Forward Collision Warning is activated later than normal. This setting reduces the amount of distance between the vehicle ahead before the initial warning occurs.

Select 'Late' when traffic is light and when driving speed is slow.

When the vehicle ahead brakes suddenly or you increase the speed of your vehicle, the driver can notice the warning alarm is early even though the later option is selected.