I have a question about two things. One is a dash

Hi there..my name is Keith..and the square light that you are seeing is a coolent level..which is usually about the level of coolent in the white bottle that your radiator over flows into and withdraws coolent from..it is either low or has a hole in it or the sensor is bad..but for your second question..i dont know what you mean by "dies"..is it the engine.????if you write back..i can help you with that too..if i have further detail..and i would be glad to assist you