Description: Without reading lamp, with g.p.s. With onstar, without light sensitive. With onstar, without reading lmps. Without compass, without light sensitve. Without auto dimming. With onstar, with reading lamps. With onstar, without auto dim. Without sunroof, with gps. With G.P.S. without light sensitive. Helps maximize rear visibility This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Collision parts are designed to help promote proper and safe repair