While driving the 2011 Ford Escape and turning on the directional signals to make a turn the car chimed. No message came up on the read out, it happened three times that day, sometimes just as I was driving forward. Next day I drove 80 miles no chimes. Today I drove 5 miles and it chimed again with no message. I have just under 16,000 miles on it. The Ford dealer could not find the reason for the chimes going off, and having no message read out. Can you please help me on this? Thank you.