Ford Edge (2014–2019), Explorer (2014–2019), F-150 (2013–2019), F-250 (2015–2017), F-350 (2015–2017), Fusion (2013–2018), Mustang (2013–2019). It enables hands-free keyless entry and push-button start by detecting your proximity to the vehicle — no button press needed to unlock the door.