Certain 2015 – 2021 Model Year Mustang Convertible Vehicles Door Opens to Secondary Latch Position n some of the affected vehicles, a front door latch may open to the secondary latched position while driving. While the door is in the secondary latched position the driver will notice wind noise from the door and a door ajar warning will appear on the instrument cluster. This concern does not result in a fully opened door while driving. The occupant can open the door normally using the door handle.