See also:

Door open warning light
The door open warning light illuminates if any door or the rear gate is not fully closed. Always make sure this light is out before you start to drive. ...

For U.S.A.
The following information has been compiled according to Code of Federal Regulations “Title 49, Part 575”. ...

Gross Axle Weight (GAW) and Gross Axle Weight Rating (GAWR)
Gross Axle Weight The total weight applied to each axle (GAW) must never exceed the Gross Axle Weight Rating (GAWR). The front and rear GAWs can be adjusted by relocating passengers and l ...