I have almost died going 70-80mph in a freeway and my car just SHUTS OFF

What is your question?

In August, 2014 it happened in the middle of rush hour traffic and now on Dec 2, 2014 on the 5 in Gorman, CA going 70mph in MOUNTAINS! 50mph winds, rain and it happened literally 15 times total!!! Driving 70 MPH!!!!! Why was I not notified and this car has been with one owner for 16 years!!! Will they replace this for free since it's their PROBLEM????? I am scared every moment I drive this car, I hate it...I literally have more anxiety then I have ever had in my life... HELP!