Lexus ES 250 Owner's Manual page 250

WARNING
Set the speed appropriately depend-
●
ing on the speed limit, traffic flow, road
conditions, weather conditions, etc.
The driver is responsible for checking
the set speed.
Even when the system is functioning
●
normally, the condition of the preced-
ing vehicle as detected by the system
may differ from the condition
observed by the driver. Therefore, the
driver must always remain alert, assess
the danger of each situation and drive
safely. Relying solely on this system or
assuming the system ensures safety
while driving can lead to an accident,
resulting in death or serious injury.
● Switch the dynamic radar cruise con-
trol setting to off, using the cruise con-
trol main switch when not in use.
■ 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 fol-
■
lowing 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.
4-5. Using the driving support systems
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 does
not include functions which will prevent
or avoid collisions with vehicles ahead of
your vehicle. Therefore, if there is ever
any possibility of danger, the driver must
take immediate and direct control of the
vehicle and act appropriately in order to
ensure the safety of all involved.
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
●
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