There are two checks you can easily do on your coolant: whether you have enough of it and if it’s still protecting your engine in cold temperatures.

Pro Tip: If you don’t see any coolant in the reservoir, or at the top of the radiator, add coolant to your system and run the vehicle up to normal operating temperature.

And when the engine does start to overheat, give the engine time to rest. You can use water to cool it down but don’t open ...