Hyundai Elantra: Panic (4) - Remote keyless entry system operations - Remote keyless entry (if equipped) - Features of your vehicle - Hyundai Elantra MD 2010-2015 Owners manualHyundai Elantra: Panic (4)

The horn sounds and hazard warning lights flash for about 30 seconds if this button is pressed for more than 1.5 second. To stop the horn and lights, press any button except the trunk button on the transmitter