Lexus RC300h 2017, Manual

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4-5. Using the driving support systems
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Operating conditions of emergency brake signal
When the following three conditions are met, the emergency brake signal will operate:
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The emergency flashers are off.
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Actual vehicle speed is over 55 km/h (35 mph).
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The brake pedal is depressed in a manner that cause the system to judge from the vehi-
cle deceleration that this is a sudden braking operation.
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Automatic system cancelation of emergency brake signal
The emergency brake signal will turn off in any of the following situations:
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The emergency flashers are turned on.
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The brake pedal is released.
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The system judges from the vehicle deceleration that is not a sudden braking operation.
WARNING
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The ABS does not operate effectively when
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The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
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The vehicle hydroplanes while driving at high speed on wet or slick roads.
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Stopping distance when the ABS is operating may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always maintain a
safe distance from the vehicle in front of you, especially in the following situations:
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When driving on dirt, gravel or snow-covered roads
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When driving with tire chains
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When driving over bumps in the road
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When driving over roads with potholes or uneven surfaces
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TRC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
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Hill- start assist control does not operate effectively when
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Do not overly rely on hill-start assist control. Hill-start assist control may not operate
effectively on steep inclines and roads covered with ice.
●
Unlike the parking brake, hill-start assist control is not intended to hold the vehicle
stationary for an extended period of time. Do not attempt to use hill-start assist con-
trol to hold the vehicle on an incline, as doing so may lead to an accident.
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When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause an
accident. Exercise particular care when the indicator light flashes.
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When the TRC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As these
are the systems to help ensure vehicle stability and driving force, do not turn the TRC/
VSC systems off unless necessary.