Lexus 2008 IS250, Owner'S Manual

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159
2-4. Using other driving systems
2
When drivin
g
The system continues follow-up cruising while adjusting for changes in the
speed of the vehicle ahead in order to maintain the vehicle-to-vehicle dis-
tance set by the driver.
Example of acceleration (when there are no longer vehicles driving
slower than the set speed in the lane ahead): When the speed is set to
62 mph (100 km/h) and the vehicle ahead driving at 50 mph (80
km/h) is out of the lane
When the vehicle ahead of you executes a lane change, the system slowly
accelerates until the set vehicle speed is reached. The system then returns to
fixed speed cruising.
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Dynamic radar cruise control warning lights, messages and buzzers
Warning lights, messages and buzzers are used to indicate a system malfunction or
to alert you to the need for caution while driving. (
→
P. 369)
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The dynamic radar cruise can be set when
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The shift lever is in D or the 4, 5 or 6 range of S.
l
Vehicle speed is between approximately 30 mph (45 km/h) and 85 mph (135
km/h).
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Accelerating
The vehicle can be accelerated normally.
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Automatically canceling vehicle-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the follow-
ing situations.
l
Vehicle speed falls below 25 mph (40 km/h)
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VSC is activated
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The sensor cannot operate correctly because it is covered in some way.
l
The windshield wipers are operating at high speed.
l
The “ECT SNOW” switch is set to snow mode.
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.