Hi, I had the alternator, battery and starter checked and they said they were ok. I haven't tried to jump start it, and my mechanic can't make it happen. But it has happened to me at least 6 times. The freeway and the busy intersections are the most fun. He thinks it might be the ignition switch too, so why won't he just replace it? He says he wants it to happen to him first. It's been at the shop for a month. Thanks for your reply, Pam