PoloGreen 3.4

Ok so i was going to a drive through car wash, its a pretty long one and the car was getting warm, nothing dangerous, just warm. As Im going through the red Check Gauges light comes on for about a second, then goes off. I check gauges, everything looked normal, what happened?

HBHRacing

some things that will set the check gauges light are.

low oil pressure
low fuel leval
high temp

any of them could do it