2013 Lexus GS 350 Owners Manual - Page 198

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GS350_U (OM30C34U)

4-5. Using the driving support systems

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Automatic cancelation of constant speed control

The cruise control will stop maintaining the vehicle speed in the following situations:

●

Actual vehicle speed is more than approximately 10 mph (16 km/h) below the set

vehicle speed.

At this time, the memorized set speed is not retained.

●

Vehicle speed falls below approximately 25 mph (40 km/h).

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is turned off by pressing the VSC OFF switch.

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When the LKA (Lane-Keeping Assist) will be activated

Using the radar cruise control in vehicle-to-vehicle distance control mode, lane

keeping assistance control is activated.

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Radar sensor and grille cover

Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle

distance control operates properly. (Some obstructions, such as snow, ice and plastic

objects, cannot be detected by the obstruction sensor.)

Dynamic radar cruise control is canceled if an obstruction is detected.

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Warning messages and buzzers for dynamic radar cruise control

Warning messages and buzzers are used to indicate a system malfunction or to

inform the driver of the need for caution while driving. (

→

P. 700)

Grille cover

Radar sensor