I have only a single key on the chain most of the time but will try to remember this hint in the future. Of course, the two most recent times this problem occured, by the time the tow truck arrived two hours later, the car started and the dealer could find nothing wrong. Now I just wait for the car ...

Thank you for your suggestion. The only other respondant also suggested she had problems with the antenna in the key and that if she removed and reinserted the key, it would start. Fortunately (or unfortunately) this is an intermittent problem that has not recurred since posting this problem at this ...

Intermittently over the last 9 months, after driving for as short as 15-30minutes and up to 6hrs, when I return to the car a few minutes later, it won't! One of two things happen. Either the starter and engine turn over without starting or it will start but only run for a few seconds before shutting ...