When traffic is at a standstill, your car can notify you if the vehicle in front has started moving. You can enable or disable this feature in settings.
Warning
The notification does not indicate that it is safe to drive, only that traffic has started moving. The driver is always responsible for determining if it is safe to start driving.
Press the car symbol 
in the bottom bar and go to Settings.
in the bottom bar and go to Settings.Go to .
Enable or disable the notifications.