How do you reset alarm on 2011 impala?

To reset the alarm on a 2011 Chevrolet Impala, first, ensure that the vehicle is unlocked. If the alarm is sounding, use the key fob to press the "Unlock" button or insert the key into the ignition and turn it to the "On" position. If the alarm continues to sound, disconnect the battery for a few minutes and then reconnect it. This should reset the alarm system.