Write the next sentence in this paragraph:

How to tell if your car's thermostat is stuck closed
Check your temperature gauge in the car.
A stuck thermostat might be to blame if your gauge marker nears the red danger zone within five to 15 minutes.
Turn off your car and allow it to cool before opening the hood.

Available options:
--This is the first sign that your car's thermostat is still active, but batteries need to cool down. Use your smart phone, radio, or cigarette lighter to check the air pressure in your car's air vents.;
--To work, that means windows, doors, and heating vents can go off at any time. If you need the temperature gauge to be specific, and it isn't listed next to your hood, don't use the vehicle heater.;
--Unhook your coolant reservoir if you can undo it and pour the antifreeze into a container. Locate your radiator and remove the cap.;
--Make sure you put the hood on in the hot, wet afternoon when you are driving at particular speeds, or when you can feel the temperature dropping below 70 f (13 c). Use a pair of gloves and a utility knife to access the shut hood.;
Unhook your coolant reservoir if you can undo it and pour the antifreeze into a container. Locate your radiator and remove the cap.