Where is the drain plug for radiator on a 2003 Chevy Impala?

The drain plug for the radiator on a 2003 Chevy Impala is located at the bottom of the radiator, usually on the driver's side. However, it's not always easily visible. You might need to get under the car to locate it. It's typically a small bolt or plug. Be prepared for some coolant to drain, so have a drain pan ready.