Toyota Highlander 2020 Owner's Manual page 195

Selecting trailer ball
Use the correct trailer ball for
your application.
Trailer class
IV
II and III
I
Trailer ball load rating
Matches or exceeds the gross
trailer weight rating of the trailer.
Ball diameter
Matches the size of the trailer cou-
pler. Most couplers are stamped
with the required trailer ball size.
Shank length
Protrudes beyond the bottom of the
lock washer and nut at least 2
threads.
Shank diameter
Matches the ball mount hole diame-
ter size.
HIGHLANDER_U
Typical trailer ball
size
2 5/16 in.
2 in.
1 7/8 in.
Use the wire harness stored in
the rear end under body.
Please consult your dealer
when installing trailer lights, as
incorrect installation may cause
damage to the vehicle's lights.
Please take care to comply with
your state's laws when install-
ing trailer lights.
■
In case of over current, the auto
cut-off function stops the power
flowing to the trailer lights to prevent
damage to the vehicle's electrical
system.
4-1. Before driving
Positions for towing hitch
ball
Weight carrying ball position:
50.7 in. (1289 mm)
Connecting trailer lights
Auto current cut-off function
195
4