T5 hybrid 3 years old, just over 17 000 miles. I was driving this afternoon on engine power (was on battery charge mode) near freezing temperature when I noticed the turtle light on dashboard. I was referred to the overheating engine in the driver's manuals, as I was going through city streets I was doing between 20 and 30 so didn't notice any reduced engine issues.
I arrived at destination, parked for a couple of minutes and drove home (20mns) without any more issues.
Turtle symbol