Visually check the loose mount bolt.
Other information:
The power liftgate will not open automatically, when the vehicle is moving more
than 2mph(3km/h) or the automatic shift lever is not in P(Park) position.
✽ NOTICE
The chime will sound continuously if you drive over 2 mph (3 km/h) with the
liftgate opened. Stop your vehicle at a safe place as ...
Removal
1.
Remove wheel nuts, wheel and tire (A) from hub.
Tightening torque:
107.9 - 127.5 N·m (11.0 - 13.0 kgf·m, 79.6 - 94.0 lb·ft)
...