The GMC Sierra's available dual function mirror can be used as a conventional rear-view mirror or as a camera-based rear-view mirror that helps drivers see around potential vision obstructions such as rear head restraints.
Compared to a traditional interior rear-view mirror, this mirror display provides a wider, less obstructed field of view to assist when driving, changing lanes, and checking for vehicles and traffic conditions. It offers zoom, brightness and vertical tilt driver adjustments.