If your vehicle has this mirror, it has a lever located at the bottom of the mirror. The lever is used to change the mirror from the day to the night position. To reduce glare from headlamps behind you while driving at night, pull the lever toward you. To return the mirror to the day position, return the lever to its original position.
There may be two reading lamps located on the bottom of the mirror. Press the button next to each lamp to turn it on and off.