Toyota 2014 Sienna Manual page 374

2-5. Driving information
Towing related terms
■
GCWR (Gross Combination Weight Rating)
■
GVWR (Gross Vehicle Weight Rating)
374
SIENNA_OM_OM45483U_(U)
The maximum allowable gross
combination weight. The gross
combination weight is the sum of
the total vehicle weight (including
the occupants, cargo and any
optional equipment installed on
the vehicle) and the weight of the
trailer being towed (including the
cargo in the trailer).
The maximum allowable gross
vehicle weight. The gross vehicle
weight is the total weight of the
vehicle. When towing a trailer, it
is the sum of the vehicle weight
(including the occupants, cargo
and any optional equipment
installed on the vehicle) and the
tongue weight.