Lexus RX450H Manual page 291

2-4. Using other driving systems
CAUTION

Conditions under which the vehicle-to-vehicle distance control may not
function correctly
Apply the brakes as necessary in the following conditions as the radar sen-
sor may not be able to correctly detect vehicles ahead, and a fatal or serious
accident may result:

When water or snow thrown up by the surrounding vehicles hinders the
functioning of the radar sensor

When your vehicle is pointing upwards (caused by a heavy load in the
luggage compartment etc.)

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 decelerates suddenly

Handling the radar sensor
Observe the following to ensure the cruise control system can function
effectively.
Otherwise, the system may not function correctly and could result in an
accident.

Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or
damage them.

Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunc-
tion. If the sensor or surrounding area is subject to a strong impact, always
have the area inspected and adjusted by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.

Do not disassemble the sensor.

Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.

Do not modify or paint the sensor and grille cover.

Do not replace them with non-genuine parts.
268
RX450h_EE