WARNING   WARNING:  When loading the roof racks, we recommend you evenly distribute the load, as well as maintain a low center of gravity. Loaded vehicles, with higher centers of gravity, may handle differently than unloaded vehicles. Take extra precautions, such as slower speeds and increased stopping distance, when driving a heavily loaded vehicle.

The maximum recommended load is 50 lb (22 kg) for vehicles with a panoramic roof, and 80 lb (36 kg) for vehicles without a panoramic roof. For vehicles with adaptive suspension, the maximum recommended load is 80 lb (36 kg), regardless of roof type. Evenly distribute the load on the roof rack.
Note:   Never place loads directly on the roof panel.The intended design of the roof panel is not to directly carry a load.
 Make sure that you securely fasten the load. Check the tightness of the load before driving and at each fuel stop.