I have the same problem on my 2002 Impala. The dash lights all flash for a second. No engine shut off, just the lights and the RPM goes down and up. Just a split second. I don't think I would notice it if the lights didn't all flash. Started about 5 years ago. Mine happens when driving in warmer (over 70degree) weather only at highway speeds. Dealer can't help either.
Wednesday, May 12th, 2010 AT 4:29 PM