... , when you get out of the effective rage of the car with smart key, commonly speaking,1.5M to 2M, the central ... will flash 5 seconds.6.Open the trunkUnder ARM, DISARM,OR FLAMEOUT condition, press DISARM button for 3 seconds, the trunk ... flash 5 times. Within 10 seconds, if the car be shocked again, car alarm will continue sounding. CAR ALARM SYSTEM(one way/two way available)