2012 Lexus IS 350 User Guide - Page 204

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2-4. Using other driving systems

2

CAUTION

■

To avoid inadvertent cruise control activation

Switch the cruise control off using the “ON-OFF” button when not in use.

■

Situations unsuitable for dynamic radar cruise control

Do not use dynamic radar cruise control in any of the following situations.

Doing so may result in inappropriate speed control and could cause an accident

resulting in death or serious injury.

●

In heavy traffic

●

On roads with sharp bends

●

On winding roads

●

On slippery roads, such as those covered 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 expressways

●

When weather conditions are bad enough that they may prevent the sensors

from functioning correctly (fog, snow, sandstorm, heavy rain, etc.)

●

When an approach warning buzzer is heard often

●

During emergency towing

■

When the sensor may not be correctly detecting the vehicle ahead

Apply the brakes as necessary when any of the following types of vehicles are in

front of you.

As the sensor may not be able to correctly detect these types of vehicles, the

approach warning (

→

P. 205) will not be activated, and a fatal or serious accident

may result.

●

Vehicles that cut in suddenly

●

Vehicles traveling at low speeds

●

Vehicles that are not moving

●

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

●

Motorcycles traveling in the same lane