Q: My car has three lights that came on.

Hi there. If the throttle body light is coming on, then the throttle position sensor is picking up the throttle plate sticking. Clean the throttle plate and open it manually with a large screwdriver to make it free up. Also, the thermostat light is coming on from the coolant temperature sensor saying that the coolant is not the right temperature when the thermostat should be open. I recommend replacing the thermostat and checking the strength of the coolant for its protection level. If the protection level is too low, I recommend changing all of the coolant in the engine. If you need further assistance with the warning lights on the dash, then seek out a professional, such as one from Your Mechanic, to help you.