This morning I was sitting in stop and go traffic, no longer than I usually am, all of a sudden I hear a chime. I look down and "Engine Too Hot" flast across the dash, I looked at the temp gauge and it read normal pretty much in the center, then suddenly the gauge started moving to the first red line, and dropped right back down to normal. So I stopped and popped the hood and the engine wasn't any hotter than normal operating temps. My question to you guys is has anyone else experienced this?? Just to be safe I scheduled a service appointment with the dealer.