Lexus ES 250 Owner's Manual page 241

240
4-5. Using the driving support systems
WARNING
Assisting the driver to judge proper
●
following distance
The dynamic radar cruise control with
full-speed range determines 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 determine
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 with
full-speed range 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 with full-speed
range
Do not use dynamic radar cruise control
with full-speed range in any of the follow-
ing situations. Doing so may result in
inappropriate speed control and could
cause an accident 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 or front cam-
era
In traffic conditions that require fre-
●
quent repeated acceleration and
deceleration
● During emergency towing
● When an approach warning buzzer is
heard often