If your vehicle is locked, using the hands-free feature will unlock and open the trunk. You can choose whether only the trunk or all of the doors unlock via the locking settings in the center display.
Make sure you have a charged distance-capable key on you.
Make a single kicking motion under the rear bumper and move back.
A short audible response indicates that it's about to open.
Note
Repeated foot movements cancel or reset the activation.
When you want to use the hands-free feature for closing the trunk, repeat the kicking motion once.
A short audible response indicates that it's about to close. If you try using the hands-free feature without a distance-capable key, three beeps will indicate that the trunk cannot close.
If the function appears to be unresponsive, keep in mind that obstructions to the sensor such as mud can interfere with a proper response.