2010 Lexus IS 250 Owners Manual - Page 266
2010 Lexus IS 250 Manual
Page 266 highlights
2-4. Using other driving systems
186
2-4. Using other driving systems
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Automatic cruise control cancellation
The set speed is automatically cancelled in any of the following situations.
●
Actual vehicle speed falls more than 10 mph (16 km/h) below the preset vehicle
speed
At this time, the memorized set speed is not retained.
●
Actual vehicle speed is below 25 mph (40km/h)
●
VSC is activated
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If the cruise control indicator light flashes
Turn the “ON-OFF” button off once, and then reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels immediately
after being activated, there may be a malfunction in the cruise control system. Have
the vehicle inspected by your Lexus dealer.
CAUTION
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To avoid operating the cruise control by mistake
Keep the “ON-OFF” button off when not in use.
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Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in control of the vehicle being lost and could cause an accident
resulting in death or serious injury.
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In heavy traffic
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On roads with sharp bends
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On slippery roads, such as those covered with rain, ice or snow
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On steep hills
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On winding roads
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When your vehicle is towing anything