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2434-6. Using other driving systems
4
Driving
nated.
●In the following cases, the
Reverse Automatic Braking (RAB)
system cannot be operated.
• The RAB OFF indicator is illumi-
nated.
●In the following cases, the func-
tions may not be able to properly
work. Promptly contact a Toyota
dealer to have the system
inspected.
• A sticker, paint, or a chemical is applied to the sonar sensors or
the rear bumper near the sonar
sensor.
• The rear bumper is modified.
• The rear bumper has been
removed and attached.
• The ground clearance is changed
due to the vehicle’s loading condi-
tion or modification.
• There is damage to the sonar sen-
sors or the rear bumper near the
sonar sensor.
• The rear bumper is exposed to
strong impact, or the rear bumper
is deformed.
●On a steep hill, t he system’s auto-
matic braking ability will be
reduced.
●The system is designed to avoid
collisions by automatic hard brak-
ing when the vehicle’s reversing
speed is less than approximately
3 mph (5 km/h). However, the sys-
tem does not guarantee that the
vehicle will be able to avoid colli-
sions in any situation.
●If the vehicle is reversed at an
extremely slow speed, the driver’s
operation may be prioritized. In
this case, automatic braking will
not operate.
●The system may not be able to
detect and apply the brake with
the following objects.
• Sharp or thin objects such as poles, fences and ropes which
may not reflect the sound wave
emitted from the sonar sensor.
• Objects that are t oo close to the
rear bumper when the shift lever is set to R.
• Objects with a su rface which may
not reflect the sound wave emitted
from the sonar sensor such as a
chain link fence.
●Objects the system is not
designed to detect and apply
brake.
• Pedestrians.
• Moving objects including moving vehicles.
• Objects which absorbs sound waves such as cloth or snow.
• Objects whose surface has a
diagonal angle.
• Objects that are low to the ground such as parking blocks.
• Objects that are high above the ground such as objects hanging
from above.
• Objects that are out of range of
the center of the vehicle in the
horizontal direction.
• Objects that are n ot in a vertical
direction.
• Objects which are not perpendicu-
lar to the ground.
• Objects which are not directly in the traveling direction of the vehi-
cle.
• Objects which a re uneven or
wavy.
●When reversing the vehicle, the
functions may not be able to work
properly or may cause a system
malfunction if the following condi-
tions exist.
High frequency so und from other
sources are nearby:
• Horn sound from another vehicle.
• Engine sound from other vehicles.
• Sound of an air brake.
• Vehicle detection equipment or a
sonar from another vehicle.
• A sound wave with a frequency similar to the veh icle’s system is
transmitted near by.
• A vehicle equipped with the same system is reversing toward your
reversing direction.
●Weather conditions:
• Extremely high or extremely low
Page 244 of 449

2444-6. Using other driving systems
temperatures in which the area
near the sonar sensor becomes
too hot or too cold to operate.
• The sonar sensors or the rear bumper near the sonar sensors
are exposed to heavy rain or a
significant amount of water.
• Fog, snow or sandstorm, etc.
• Air is moving rapidly such as when a strong wind is blowing.
●Parts attached to the rear bumper
near the sonar sensor:
• Commercial electronic parts (fog light, fender pole, radio antenna)
or commercial attachment parts
(trailer hitch, bicycle carrier,
bumper guard) are attached.
• Parts that emit high frequency sound, such as a horn or speaker,
are attached.
●Vehicle conditions:
• Ice, snow or mud is adhered to the
sonar sensors or the rear bumper
near the sonar sensor.
• The vehicle is significantly
inclined.
• The ground clearance is signifi- cantly reduced due to the vehi-
cle’s loading condition, etc.
• When the sonar sensor is mis- aligned due to a collision or an
accident.
●Surrounding environment:
• A cloth banner, flag, hanging branch or railroad crossing bars
are present in the reversing direc-
tion.
• When reversing on a gravel or grassy area.
• When reversing in an area where objects or walls are adjacent to
the vehicle such as narrow tun-
nels, narrow bridges, narrow
roads or narrow garages.
• Wheel track or hole is present in the ground of the reversing direc-
tion.
• When reversing over a drainage cover (grating cover).
• The path of the reversing direction is inclined such as on a steep
uphill. • When reversing downhill.
• Reversing in a garage with a low
ceiling or a tunnel.
• A curb or step is present in the
reversing direction.
• There is a patch of snow rear- ward.
• There is a puddle of water.
• There is an obstacle that is next to an object.
• Going back along a wall.
• The area where the road starts touching dirt and snow.
• When reversing on an uneven road.
Page 342 of 449

3427-2. Steps to take in an emergency
The following may indicate a
problem with your transmission.
Contact your Toyota dealer or
commercial towing service
before towing.
The engine is running but the
vehicle does not move.
The vehicle makes an abnor-
mal sound.
From the front
Use a towing dolly under the
rear wheels.
From the rear
WARNING
■After towing
Make sure to remove the towing
eyelet.
If not removed, the SRS airbags
may not deploy correctly if the
vehicle is involved in a frontal col-
lision, or the fuel pump shutoff
system may not operate correctly
if involved in a rear collision.
NOTICE
■To prevent damage to the
vehicle when towing using a
wheel-lift type truck
●Do not tow the vehicle from the
rear when the engine switch is
off. The steering lock mecha-
nism is not strong enough to
hold the front wheels straight.
●When raising the vehicle,
ensure adequate ground clear-
ance for towing at the opposite
end of the raised vehicle. With-
out adequate clearance, the
vehicle could be damaged while
being towed.
■To prevent damage to the
vehicle when towing with a
sling-type truck
Do not tow with a sling-type truck,
either from the front or rear.
■To prevent damage to the
vehicle during emergency
towing
Do not secure cables or chains to
the suspension components.
■When towing down a long
slope
Use a wheel lift-type or flat bed
truck.
If a wheel lift-type or flat bed truck
is not used, the brakes may over-
heat, leading to poor brake perfor-
mance.
Situations when it is nec-
essary to contact dealers
before towing
Towing with a wheel-lift
type truck