Lexus LX 570 Owner's Manual page 310

Warning messages and buzzers for dynamic radar cruise control
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Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. If a warning message is shown on the
multi-information display, read the message and follow the instructions.
When the sensor may not be correctly detecting the vehicle ahead
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In the case of the following and depending on the conditions, operate the brake pedal
when deceleration of the system is insufficient or operate the accelerator pedal when
acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the approach
warning (P. 306) may not be activated.
Vehicles that cut in suddenly
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Vehicles traveling at low speeds
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Vehicles that are not moving in the same lane
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Vehicles with small rear ends (trailers with no load on board, etc.)
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Motorcycles traveling in the same lane
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When water or snow thrown up by the surrounding vehicles hinders the detecting of
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the sensor
When your vehicle is pointing upwards
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(caused by a heavy load in the luggage com-
partment, etc.)
Preceding vehicle has an extremely high
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ground clearance
LX570_450d_OM_OM60R63E_(GE)
4-5. Using the driving support systems
309
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