The radiator drain plug on a 2000 Chevrolet Impala is located at the
bottom of the radiator, typically 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 usually a small, threaded plug. Sometimes a small plastic shield or cover might partially obscure it.
Important Note: Before attempting to drain the radiator, consult your owner's manual for the exact location and any specific instructions. Improper draining can damage the cooling system.