1744-5. Using the driving support systems
that may contact your vehicle, such as 
thick grass, tree branches, or a banner
• When driving through steam or smoke
• When driving near an  object that reflects 
radio waves, such as a large truck or 
guardrail
• When driving near a TV tower, broad- casting station, electric power plant, or 
other location where  strong radio waves 
or electrical noise may be present
■Situations in which the system may not 
operate properly
●In some situations such as the following, 
an object may not be detected by the 
radar sensor and front camera, prevent-
ing the system from operating properly:
• When a detectable object is approaching  your vehicle
• When your vehicle or a detectable object 
is wobbling
• If a detectable object makes an abrupt  maneuver (such as sudden swerving, 
acceleration or deceleration)
• When your vehicle approaches a detect- able 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 detect able object is hid-
den by an object, such as large baggage,  an umbrella, or guardrail
• When multiple dete ctable 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 ob ject appears to be 
nearly the same color  or brightness as its 
surroundings
• If a detectable object cuts or suddenly  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 head lights of oncoming 
traffic, shines direct ly into the front cam-
era
• 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 per- sonal 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  
1964-5. Using the driving support systems
●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 detect-
ing 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-
vehicle distance control mode may not 
function correctly
In the case of the following conditions, 
operate the brake pedal (or accelerator 
pedal, depending on the situation) as nec-
essary. 
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
●When steering wheel operation or your 
position in the lane is unstable
●When the vehicle ahead of you deceler-
ates suddenly
●When driving on a road surrounded by a 
structure, such as in a tunnel or on a 
bridge
●While the vehicle speed is decreasing to 
the set speed after the vehicle acceler-
ates by depressing the accelerator pedal 
3537-2. Steps to take in an emergency
7
When trouble arises
7-2.Steps to take in an emergency
The following may indicate a problem 
with your hybrid transmission. Contact 
your Lexus dealer or commercial tow-
ing service before towing.
If your vehicle needs to be 
t
owed
If towing is ne cessary, we recom-
mend having your vehicle towed by 
your Lexus dealer or commercial 
towing service, using a wheel-lift 
type truck or flatbed truck.
Use a safety chain system for all 
towing, and abide by all state/pro-
vincial and local laws.
WARNING
Observe the following precautions. 
Failure to do so may result in death or 
serious injury.
■When towing the vehicle
Be sure to transport the vehicle with the 
front wheels raised or with all four wheels 
raised off the ground. If the vehicle is 
towed with the front wheels contacting 
the ground, the drivetrain and related 
parts may be damaged or electricity 
generated by the operation of the motor 
may cause a fire to occur depending on 
the nature of the damage or malfunction.
■While towing (vehicles with a towing 
eyelet)
●When towing using cables or chains, 
avoid sudden starts, etc. which place 
excessive stress on the towing eyelets, 
cables or chains. The towing eyelets, 
cables or chains may become dam-
aged, broken debris may hit people, 
and cause serious damage.
●Do not turn the power switch off. 
There is a possibility that the steering 
wheel is locked and cannot be oper-
ated.
■Installing towing eyelets to the vehi-
cle (vehicles with a towing eyelet)
Make sure that towing eyelets are 
installed securely. 
If not securely installed, towing eyelets 
may come loose during towing.
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 mechanism is not strong 
enough to hold the front wheels 
straight.
●When raising the vehicle, ensure ade-
quate ground clearance for towing at 
the opposite end of the raised vehicle. 
Without adequate clearance, the vehi-
cle 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 (vehicles 
with a towing eyelet)
Do not secure cables or chains to the 
suspension components.
Situations when it is necessary to 
contact dealers before towing