2012 Lexus HS 250h Owners Manual - Page 252

252

2-4. Using other driving systems

CAUTION

■

When the sensor may not be correctly detecting the vehicle ahead

Apply the brakes as necessary in any of the following situations.

●

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 luggage

compartment etc.)

●

Vehicles that cut in suddenly

●

Vehicles with small rear ends (trailers with no load on board etc.)

●

Motorcycles traveling in the same lane

■

Handling the radar sensor

Observe the following to ensure the pre-collision system can function effectively:

●

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 become inaccurate

or malfunction. If the sensor or surrounding area is subject to a strong impact,

always have the area inspected and adjusted by your 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.

■

Determining the direction the driver is facing (vehicles with driver monitor sen-

sor)

The direction the driver is facing may not be determined correctly if the following

conditions exist:

●

There is an object between the driver monitor sensor and the driver’s face, such

as when the sensor is blocked.

●

A part of the driver’s face is covered.

●

The sensor or the driver’s face is exposed to intense light such as sunlight.

●

The driving posture is improper.