[MagicRat]

Welcome to AF.

My first thought is to check for any Technical Service bulletins related to this issue. I suggest to drop by the dealer's service department AND check on-line for them. Often, such TSB's are posted on the net. You can find out some useful info to verify anything the dealer has to say. Sometimes they are not aware of all the TSB's or are not forthcoming about the information they contain.

Also, you should complain to the dealer since this is a warranty issue. They may be unwilling to investigate intermittent electrical glitches but you should make a fuss about it before the cars get out of the warranty period (if they are still covered)