2010 Lexus IS F Owners Manual - Page 757

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2-4. Using other driving systems

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Switching modes

The mode cannot be switched to constant speed control mode if vehicle-to-vehicle

distance control mode has been used. The mode also cannot be switched from

constant speed control to vehicle-to-vehicle distance control mode. Turn the sys-

tem off by pressing the “ON-OFF” button, and turn it on again.

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Accelerating

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The vehicle can accelerate normally. After acceleration, the set speed resumes.

However, during vehicle-to-vehicle distance control mode, the vehicle speed may

decrease below the set speed in order to maintain the distance to the vehicle

ahead.

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Automatic cancelation of vehicle-to-vehicle distance control

Vehicle-to-vehicle distance control driving is automatically canceled in the follow-

ing situations.

●

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

●

VSC is activated.

●

The sensor cannot operate correctly because it is covered in some way.

●

The windshield wipers are operating at high speed.

●

The driving mode select switch is set to snow mode.

●

The shift lever is shifted to the M position.

●

When the shift lever is in the D position and any of the ranges 1 through 3 is

selected using the “-” paddle shift switch.

If vehicle-to-vehicle distance control driving is automatically canceled for any other

reason, there may be a malfunction in the system. Contact your Lexus dealer.

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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.

●

The shift lever is shifted to the M position.

●

When the shift lever is in the D position and any of the ranges 1 through 3 is

selected using the “-” paddle shift switch.