Alternator/generator/regulator problems of the 2004 Suzuki Grand Vitara

I noticed when I started my vehicle it started rough and that there were some warning lights on the dashboard. The battery,abs,and the 4x4 lights were flashing. As I proceeded to my destination which was about 23 miles,I noticed that the radio was shutting off and on, when I put the window down the radio completely shut off. That when I started to get concerned especially I was on the expressway. When I got off the exressway I noticed that my fuel light got on to where the needle was all the way down on empty, just as I was turning in to a side street with on coming traffic my vehicles engine just shut off in the middle of the road as I was turning. I then cruised in neutral to the side street where then I call for a tow truck. My vehicle is practically new only 4 year old and has 33,500 miles on it. Since I purchased my vehicle I took it to the dealership every 3,000 miles for complete checkup of the vehicle which is a 2004 Suzuki xl7. I did take my Suzuki to a mechanic and they found that the alternator went bad .