The radiator drain plug on a 2002 Chevy Malibu 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 and look carefully for a small, usually square or hexagonal, plug near the bottom of the radiator. It might be covered in grime or obscured by other components.
Important Note: Before attempting to drain your radiator, consult your owner's manual for the exact location and proper draining procedure. The manual will also give you important safety information. Draining coolant can be messy and hot coolant can cause serious burns.