Toyota SIENNA 2022 Manual page 226

Rear GAWR
B
TWR (Trailer Weight Rating)
■
The maximum allowable gross
trailer weight. The gross trailer
weight is the sum of the trailer
weight and the weight of the
cargo in the trailer.
TWR is calculated assuming
base vehicle with one driver,
one front passenger, hitch and
hitch systems (if required).
Additional optional equipment, pas-
sengers and cargo in the vehicle
will reduce the trailer weight rating
so as not to exceed GCWR, GVWR
and GAWR.
If the gross trailer weight exceeds
3000 lb. (1360 kg), it is recom-
mended to use a trailer with 2 or
more axles.
(With brakes)
A
Unbraked TWR (Unbraked
■
Trailer Weight Rating)
The trailer weight rating for tow-
ing a trailer without a trailer ser-
vice brake system.
4-1. Before driving
(Without brakes)
A
Tongue Weight
■
The load placed on the trailer
hitch ball. (P.226)
Weight limits
 The gross trailer weight must
never exceed 3500 lb. (1585
*
kg) .
*
: The towing package is required.
Toyota does not recommend tow-
ing with this vehicle without the tow-
ing package.
 The gross combination weight
must never exceed the
GCWR described below:
2WD models

8818 lb. (4000 kg)
AWD models

8995 lb. (4080 kg)
225
*
*
4