

When your car starts to overheat as you're on the highway, it's rarely expected or develops gradually. You may be left stranded on the side of the road and not know what caused the overheating to develop.
One of the main reasons your car is overheating is because it needs more coolant and doesn't have enough. This may be due to a leak that is present or if you haven't topped off the coolant recently.
Another reason the engine starts to overheat is if there isn't enough oil in the engine, making it necessary to get an oil change or top off the fluid. A technician will also need to check for thermostat failure, radiator issues, or a broken water pump. Performing an inspection will give you an idea of what repairs are needed.