Situations Unsuitable For Dynamic Radar Cruise Control - Lexus LX 570 Owner's Manual

2-4. Using other driving systems
CAUTION

Situations unsuitable for dynamic radar cruise control

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Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an accident
resulting in death or serious injury.
In heavy traffic
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On roads with sharp bends
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On winding roads
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On slippery roads, such as those covered with rain, ice or snow
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On steep downhills, or where there are sudden changes between sharp up and
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down gradients
Vehicle speed may exceed the set speed when driving down a steep hill.
At entrances to expressways
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When weather conditions are bad enough that they may prevent the sensors
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from functioning correctly (fog, snow, sandstorm, heavy rain etc.)
When an approach warning buzzer is heard often
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When your vehicle is towing a trailer or during emergency towing
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