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181
4-1. Before driving
4
Driving
■ GCWR (Gross Combination
Weight Rating)
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).
WARNING
● Do not apply the brakes sud-
denly as you may skid, resulting
in jackknifing and loss of vehicle
control. This is especially true
on wet or slippery surfaces.
● Do not exceed the trailer hitch
assembly weight, gross vehicle
weight, gross axle weight and
trailer tongue weight capacities.
● Do not use dynamic radar
cruise control with full-speed
range when towing.
● Slow down and downshift
before descending steep or long
downhill grades. Do not make
sudden downshifts while
descending steep or long down-
hill grades.
● Vehicle-trailer instability is more
likely on steep long downhills.
Before descending steep or
long downhill grades, slow
down and downshift. Do not
make sudden downshifts when
descending steep or long down-
hill grades. Avoid holding the
brake pedal down too long or
applying the brakes too fre-
quently. This could cause the
brakes to overheat and result in
reduced braking efficiency.
● Do not tow a trailer when the
compact spare tire is installed
on your vehicle.
■ When towing a trailer
Toyota recommends trailers with
brakes that conform to any appli-
cable federal and state/provincial
regulations.
● If the gross trailer weight
exceeds unbraked TWR, trailer
brakes are required. Toyota rec-
ommends trailers with brakes
that conform to all applicable
federal and state/provincial reg-
ulations.
● Never tap into your vehicle’s
hydraulic system, as this will
lower the vehicle’s braking
effectiveness.
● Never tow a trailer without using
a safety chain securely attached
to both the trailer and the vehi-
cle. If damage occurs to the
coupling unit or hitch ball, there
is danger of the trailer wander-
ing into another lane.
Towing related terms
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