2734-5. Using the driving support systems
4
Driving
• If a detectable object makes an abrupt maneuver (such as sudden 
swerving, accelera tion or deceler-
ation)
• When your vehicle approaches a  detectable object rapidly
• When a detectable object is not  directly in front of your vehicle
• When a detectable object is near  a wall, fence, guardrail, manhole 
cover, vehicle, steel plate on the 
road, etc.
• When a detectable object is under  a structure
• When part of a detectable object  is hidden by an object, such as 
large baggage, an umbrella, or 
guardrail
• When multiple detectable objects  are close together
• If the sun or other light is shining  directly on a detectable object
• When a detectable object is a 
shade of white and looks 
extremely bright
• When a detectable object appears 
to be nearly the same color or 
brightness as its surroundings
• If a detectable object cuts or sud-
denly emerges in front of your 
vehicle
• When the front of your vehicle is 
hit by water, snow, dust, etc.
• When a very bright light ahead,  such as the sun or the headlights 
of oncoming traffic, shines directly 
into the front camera
• When approaching the side or  front of a vehicle ahead
• If a vehicle ahead is a motorcycle
• If a vehicle ahead is narrow, such  as a personal mobility vehicle
• If a preceding vehicle has a small  rear end, such as an unloaded  truck
• If a preceding vehicle has a low  rear end, such as a low bed trailer
• If a vehicle ahead has extremely  high ground clearance
• If a vehicle ahead is carrying a  load which protrudes past its rear 
bumper
• If a vehicle ahead is irregularly  shaped, such as a tractor or side 
car
• If a vehicle ahead is a child sized  bicycle, a bicycle that is carrying a 
large load, a bicycle ridden by 
more than one person, or a 
uniquely shaped bicycle (bicycle 
with a child seat, tandem bicycle, 
etc.)
• If a pedestrian/or the riding height 
of a bicyclist ahead is shorter than 
approximately 3.2 ft. (1 m) or taller 
than approximate ly 6.5 ft. (2 m)
• If a pedestrian/bic yclist is wearing 
oversized clothing (a rain coat, 
long skirt, etc.), making their sil-
houette obscure
• If a pedestrian is bending forward  or squatting or bicyclist is bending 
forward
• If a pedestrian/bicyclist is moving  fast
• If a pedestrian is pushing a 
stroller, wheelchair, bicycle or 
other vehicle
• When driving in inclement weather  
2984-5. Using the driving support systems
●Pre-collision braking is activated.
●The parking brake is operated.
If constant speed control mode is 
automatically canceled for any rea-
sons other than the above, there 
may be a malfunction in the system. 
Contact your Toyota dealer.
■Brake operation
A brake operation sound may be 
heard and the brake pedal response 
may change, but the se are not mal-
functions.
■Warning messages and buzzers 
for dynamic radar cruise con-
trol with full-speed range
Warning messages and buzzers are 
used to indicate a system malfunc-
tion or to inform  the driver of the 
need for caution while driving. If a 
warning message  is shown on the 
multi-information  display, read the 
message and follow  the instructions. 
(  P.265, 477)
■When the sensor may not be 
correctly detecting the vehicle 
ahead
In the case of the following and 
depending on the conditions, oper-
ate the brake pedal when decelera-
tion of the system is insufficient or 
operate the accelerator pedal when 
acceleration is required.
As the sensor may not be able to 
correctly detect these types of vehi-
cles, the approach warning 
(  P.295) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are  not moving in 
the same lane
●Vehicles with small rear ends 
(trailers with no load on board, 
etc.)
●Motorcycles traveling in the same 
lane
●When water or snow thrown up by 
the surrounding vehicles hinders 
the detecting of the sensor
●When your vehicle is pointing 
upwards (caused by a heavy load 
in the luggage compartment, etc.)
●Preceding vehicle has an 
extremely high ground clearance
■Conditions under which the 
vehicle-to-vehic le distance con-
trol mode may not function cor-
rectly
In the case of the following condi-
tions, operate the brake pedal (or 
accelerator pedal, depending on the 
situation) as necessary.
As the sensor may  not be able to 
correctly detect vehicles ahead, the 
system may not operate properly.
●When the road curves or when the 
lanes are narrow 
4637-2. Steps to take in an emergency
7
When trouble arises
The following may indicate a 
problem with your transmission. 
Contact your Toyota dealer or 
commercial towing service 
before towing. 
The hybrid system warning 
message is shown on the 
multi-information display and 
the vehicle does not move.
 The vehicle makes an abnor-
mal sound.
From the front (2WD models)
Release the parking brake.
Turn automatic mode off. 
( P.244)
From the front (AWD models)
Use a towing dolly under the 
rear wheels.
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 power 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.
■Recreational towing (behind 
motor home, etc.)
Never dinghy tow your vehicle to 
prevent causing serious damage 
to the AWD system  and transmis-
sion. ( P.230)
Situations when it is nec-
essary to contact dealers 
before towing
Towing with a wheel-lift 
type truck