Abstract: There is disclosed an automotive roof vent window designed for ease of retrofit installation and ease of removal of the vent window panel after installation. The vent window has a main frame and clamping trim ring secured thereto with self tapping screws. The vent window panel is pivotally mounted to the main frame by hinged brackets having a slotted aperture which receives threaded pins permanently carried by the vent window panel and clamped to the brackets by thumb nuts. The opposite edge of the window panel is secured by a toggle latch assembly that is pivotally engaged to a mounting bracket of the window frame by a pin removably seated in slotted apertures of the bracket. The pin has indexing flats to permit its withdrawal when rotated to align the flats with the slots of the apertures. The pin is securely locked in the assembly by a dependent lever having resilient detenting tabs.