Seat Belt Warning
When you turn the ignition ON with the driver seat belt unbuckled, (the seat belt switch ON) Buzzer operates for 6 ± 1 sec.
If you buckle up the driver seat belt (the seat belt switch OFF) or turn the ignition OFF within 6 ± 1 sec. since the buzzer operated, the buzzer goes OFF.
Because the seat belt warning lamp is not controlled by ISU but controlled directly by the seat belt switch, the lamp stays ON as long as the seat belt unbuckled.