A sunroof arrangement is provided which has a releasable sunroof opening cover member which can be moved between a closed position and a tilted position with the rear portion thereof raised above the adjacent vehicle roof panel structure. In order to minimize the space occupied by the tilting structure for the cover member, the same includes a tilting lever pivotally connected by loss-motion pin and slot connections to both of the roof frame structure and the cover member. In addition, the tilting lever is moved by way of a threaded axle and threaded bushing engageable at a position intermediate the pivotal connections of the tilting lever to the cover member and vehicle frame. Spring loaded detachable detent pins are provided at a bracket carried by the cover member for releasably engaging the tilting member.