Lexus RC 350 AWD 2019 Owner's Manual page 169

WARNING
■ Cautions regarding the driving assist
systems
Observe the following precautions, as
there are limitations to the assistance
provided by the system.
Failure to do so may cause an accident
resulting in death or serious injury.
● Assisting the driver to measure follow-
ing distance
The dynamic radar cruise control is only
intended to help the driver in determin-
ing the following distance between the
driver's own vehicle and a designated
vehicle traveling ahead. It is not a mecha-
nism that allows careless or inattentive
driving, and it is not a system that can
assist the driver in low-visibility condi-
tions. It is still necessary for driver to pay
close attention to the vehicle's surround-
ings.
● Assisting the driver to judge proper
following distance
The dynamic radar cruise control deter-
mines whether the following distance
between the driver's own vehicle and a
designated vehicle traveling ahead is
within a set range. It is not capable of
making any other type of judgement.
Therefore, it is absolutely necessary for
the driver to remain vigilant and to deter-
mine whether or not there is a possibility
of danger in any given situation.
● Assisting the driver to operate the
vehicle
The dynamic radar cruise control has
limited capability to prevent or avoid a
collision with a vehicle traveling ahead.
Therefore, if there is ever any danger, the
driver must take immediate and direct
control of the vehicle and act appropri-
ately in order to ensure the safety of all
involved.
RC350AWD_RC350_RC300AWD_RC30
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4-5. Using the driving support systems
Situations unsuitable for dynamic
■
radar cruise control
Do not use dynamic radar cruise control
in any of the following situations.
Doing so may result in inappropriate
speed control and could cause an acci-
dent resulting in death or serious injury.
Roads where there are pedestrians,
●
cyclists, etc.
In heavy traffic
●
● On roads with sharp bends
● On winding roads
On slippery roads, such as those cov-
●
ered with rain, ice or snow
On steep downhills, or where there
●
are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set
speed when driving down a steep hill.
● At entrances to freeways and highways
When weather conditions are bad
●
enough that they may prevent the sen-
sors from detecting correctly (fog,
snow, sandstorm, heavy rain, etc.)
● When there is rain, snow, etc. on the
front surface of the radar sensor or
camera sensor
In traffic conditions that require fre-
●
quent repeated acceleration and
deceleration
● During emergency towing
● When an approach warning buzzer is
heard often
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