Hands-Free Liftgate Actuation Sensors
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
The hands-free liftgate actuation sensors are capacitive sensors and generate capacitive fields near the rear bumper. The capacitive fields are disrupted when an object (such as a leg) enters the area. The hands-free liftgate actuation module uses this information to interpret movement near the rear bumper.