At the first sign of overheating, shut off your air conditioner and open your windows: Doing so decreases the load on the engine and helps it cool off.
Turn the heater all the way hot and blower fan on High: Doing this will utilize the heater core to help dissipate some of the heat from the Engine.
Try not to ride your brakes: In stop-and-go traffic, crawl along slowly, on little more than an idle, rather than moving up and then braking repeatedly. Brake drag increases the load on the engine and makes it heat up. If traffic is crawling, move up only when the gap between you and the vehicle in front of you gets too large.
If you think that your vehicle is about to boil over, drive to the right-hand side of the road, open the hood, and sit there until things cool off: Remember, don’t open the radiator cap under these circumstances, and if your engine has boiled over, don’t add water until the engine is quite cool again.
If the vehicle continues to run too hot pull to the right-hand side of the road or an off ramp and call a tow service: Doing so may help eliminate costly Engine repair or possible engine replacement.