The vehicle has an engine coolant temperature gage. With the ignition turned to ON/RUN, this gage shows the engine coolant temperature.
If the gage pointer moves into the red area, the engine is too hot. It means that the engine coolant has overheated.
If the vehicle has been operating under normal driving conditions, pull off the road, stop the vehicle and turn off the engine as soon as possible.
See Engine Overheating.