Lexus RX 450h Owner's Manual page 334

332 4-5. Using the driving support systems
When the sensor may not be correctly
■
detecting the vehicle ahead
In the case of the following and depending
on the conditions, operate the brake pedal
when deceleration of the system is insuffi-
cient or operate the accelerator pedal
when acceleration is required.
As the sensor may not be able to correctly
detect these types of vehicles, the approach
warning (P.330) 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 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 vehi-
■
cle-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