I think when the red light is blinking, the alarm is activated. In your manual, it says that when you lock the car twice with the key fob, the alarm will activate. If the red light is not blinking when you exit the car, then the alarm is not activated. I think every car has an alarm system, you just need the key fob to activate it. I know when I lock it from the inside, the red light is not blinking therefore the alarm is not activated. I'm pretty sure you NEED the key fob to activate the alarm.
