Where is the radiator cap on a 2000 Chevy Malibu?

The radiator cap on a 2000 Chevy Malibu is located on the top of the radiator, usually towards the front of the engine bay. It's often a black plastic cap, and sometimes has a pressure relief valve visible. Because the exact location might vary slightly due to trim level or accessories, it's best to visually inspect the area around the radiator itself to locate it. Be careful when doing this, as the radiator and surrounding components get hot when the engine is running.