GTW (Gross Trailer Weight)
The GTW is the weight of a trailer including the weight of the load, luggage, accessories etc. on the trailer.
See also:
Problems with the SmartKey
Problem
Possible causes/consequences and
Solutions
You cannot lock or unlock the vehicle using
the SmartKey.
The SmartKey battery is discharged or nearly discharged.
...
Important safety notes
WARNING
The PARKTRONIC is a supplemental system.
It is not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
...
Making adjustments in 1 mph (Canada: 1 km/h) increments
Briefly press the cruise control
lever to the
pressure point, up 1 for a higher speed or
down 2 for a lower speed.
The last speed stored is increased or
reduced. ...