Toyota Sienna 2010 Owner's Manual page 203

The dynamic laser cruise can be set when
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The shift lever is in D or 4.
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Vehicle speed is between the following speed.
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U.S.A.: Approximately 28 mph (45 km/h) - 85 mph (137 km/h)
Canada: Approximately 45 km/h (28 mph) - 139 km/h (86 mph)
Accelerating
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The vehicle can be accelerated normally.
Automatically canceling vehicle-to-vehicle distance control
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Vehicle-to-vehicle distance control driving is automatically canceled in the
following situations.
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.
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The windshield wipers are operating at high or low speed.
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*
: Vehicle-to-vehicle distance control driving must be reset by turning the
"ON-OFF" button on again.
If vehicle-to-vehicle distance control driving is automatically canceled for any
other reason, there may be a malfunction in the system. Contact your Toyota
dealer.
Automatically cancelling fixed speed control
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The set speed is automatically canceled in the following situations.
Actual vehicle speed is more than 10 mph (16 km/h) below the preset
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vehicle speed.
At this time, the memorized set speed is not retained.
Vehicle speed falls below 25 mph (40 km/h).
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VSC is activated.
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2-4. Using other driving systems
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2
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