Automatic Anti-Glare Rearview Mirror (if so equipped) Your vehicle's rearview mirror has a feature that enables it to detect glare and automatically dim the mirror surface. The indicator light will illuminate when the anti-glare feature is operating. Press this button to turn the anti-glare feature ON or OFF. If your vehicle is equipped with a driver's side automatic anti-glare outside mirror, the same buttons that control the anti-glare rearview mirror will control the outside mirror as well. If so equipped, your mirror has a built in compass, indicating in which direction your vehicle is traveling. Please refer to your Owner's Manual for complete details on this feature.