Blue Light

My co-workers mother has a 2003 corolla, and at night they can see a blue blinking light from under the dash on the drivers side. Does anyone know what this light is/what it is for? Any thoughts or suggestions would be appreciated, seeing as how I can't get under there to look cuz her mom has the car. My co-worker is kinda worried about this. Thanks

LOL, don't worry about the blinking light. If she has a security alarm installed, it's probably just that, or it's part of the circuitry inside your car, mine has one too and it's perfectly normal