GMC duramax diesel 2016 Supplement Manual page 71

70 Driving and Operating
See Trailer Towing in the owner
manual for kingpin weight and trailer
tongue weight information.
Weight of the Trailer Tongue
The tongue load (1) of any trailer is
very important because it is also
part of the vehicle weight. The
Gross Vehicle Weight (GVW)
includes the curb weight of the
vehicle, any cargo carried in it, and
the people who will be riding in the
vehicle as well as trailer tongue
weight. Vehicle options, equipment,
passengers and cargo in the vehicle
reduce the amount of tongue weight
the vehicle can carry, which will also
reduce the trailer weight the vehicle
can tow.
Trailer tongue weight (1) should be
10 15% and fifth-wheel or
gooseneck kingpin weight should be
15 25% of the loaded trailer
weight (2) up to the maximums for
vehicle series and hitch type.