On cars with side airbags and belt tensioners the seatbelt warning system is automatically included. The warning system alerts you if the seatbelts are not fastened when the car is started. Relevant symbols appear on the multifunction display for 30 seconds after the ignition is turned on. A light indicates a passenger has fastened their seatbelt properly, while an empty seat shows the seatbelt is still to be secured. The system will also go into action if it detects an unfastened seatbelt when the car is travelling at over 15mph. The seatbelt indicator flashes for 30 seconds and a warning signal is sounded.