I was driving my new Nitro(829 miles on it) and all the warning lamps started going on and off. The tach started jumping from 300 to 3000 rpm, and all this while in cruise control at 60mph. We pulled over as soon as we could. Put it in neutral and it shut itself off. Then on the first try it wouldn't even crank. Waited a couple of minutes and tried again figuring the computer would reset itself. This time it started, and after about 30 seconds all the warning lamps started cycling thru again so I shut it off and had it towed to the dealership. The only thing I've heard of with warning lamps was with automatics and this is a 6-speed. Any ideas?