A combination of sensors, motors, and electronic controls make the power liftgate possible. In the most basic systems, users activate the liftgate by pressing a button on their key fob or on the driver’s control panel. When sensors detect that the driver is close to the vehicle, an internal motor engages to lift the rear hatch or liftgate smoothly and steadily until fully opened. Once they’ve unloaded their cargo, users can then press the same button to close the liftgate or guide the hatch shut manually. Many power liftgates are also equipped with a button on the interior that users can press when the liftgate is open to engage the motor and lower the door electronically.
Many power liftgates include additional features to make them even more useful and convenient. For example, modern vehicles with power liftgates are often equipped with fully hands-free functionality. Drivers with the key fob on their person can simply wave their hands in front of a sensor in the hatch to initiate the opening sequence.
Some systems use a pedal or foot sensor to activate opening the power liftgate. Others may be equipped with enhancements like obstacle detection to prevent the gate from closing if sensors detect an obstruction blocking its path, as well as customizable height settings that allows users to adjust how far the liftgate opens upward in garages or other low-clearance areas.