If you've ever had a check engine light or check oil light stick around, even after you've completed any maintenance, then you might have a problem with a sensor. It can become damaged and will need to be replaced, especially if you want to get rid of any annoying lights.
In this next video, you'll find out how to replace a coolant level sensor on a Chevy Impala. If you have experience with cars, it shouldn't take that long to replace. So good luck and enjoy!