How do you reset tire monitor on 2009 Chevy Malibu?

To reset the tire monitor on a 2009 Chevy Malibu, first ensure that all tires are properly inflated to the recommended pressure. Then, turn the ignition to the "On" position without starting the engine. Press and hold the tire pressure monitoring system (TPMS) reset button, usually located beneath the steering wheel, until the TPMS warning light blinks three times, then release the button. Finally, start the engine, and the system should be reset.