See also:

Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the weight of all cargo, consumables and equipment (permanent or temporary) loaded in or on the trailer in its loaded and ready for operation condition. ...

Frontal Area
The frontal area is the maximum height multiplied by the maximum width of the front of a trailer. ...

How To Engage The Automatic Locking Mode
1. Buckle the combination lap and shoulder belt. 2. Grasp the shoulder portion and pull downward until the entire belt is extracted. 3. Allow the belt to retract. As the belt retracts, you will ...