When a vehicle starts overheating, it's important to act fast but calmly. Signs include: temperature gauge rising, steam from the hood, or strange smells.What To DoTurn off the air conditioner and turn on the heater (it helps pull heat away from the engine).Pull over safely and turn off the engine.Open the hood carefully to let the heat out (do not touch the radiator cap).Wait 15–30 minutes before checking the coolant level.If low, add water or coolant — but only when the engine has cooled.If the problem repeats, have it checked by a mechanic.Never continue driving an overheated car. It can lead to serious engine damage and expensive repairs.