2010 Lexus IS 250 Owners Manual - Page 279

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2-4. Using other driving systems

2

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 sensor 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 function-

ing of the sensor

●

When your vehicle is pointing upwards (caused by a heavy load in the trunk, 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 front grille cover clean at all times.

Clean the sensor and front 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 malfunction. If the

sensor or surrounding area is subject to a strong impact, always have the area

inspected and adjusted by a Lexus dealer.

●

Do not disassemble the sensor.

●

Do not attach accessories or stickers to the sensor, grille cover or surrounding

area.

●

Do not modify or paint the sensor and grille cover.

●

Do not replace them with non-genuine parts.