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4-5. Using the driving support systems
When the message is displayed on the multi-information display showing that TRC
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has been disabled even if the VSC OFF switch has not been pressed
TRC and hill-start assist control cannot be operated. Contact your Lexus dealer.
Hill-start assist control is operational when
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The system has detected that the vehicle is moving backward.
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Vehicles without paddle shift switches: The shift lever is in the D or S position.
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Vehicles with paddle shift switches: The shift lever is in the D or M position.
The brake pedal is not depressed.
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VGRS is disabled when
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VGRS may stop operating in the following situations.
In this event, the steering wheel may move from its straight forward position, but it
will return when the system restarts.
When the steering wheel is operated for an extended period of time while the vehi-
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cle is stopped or is moving very slowly
When the steering wheel has been held fully to the left or right
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When the battery is low or the voltage temporarily drops
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The center position of the steering wheel may change when VGRS is disabled. How-
ever, the position will return to normal after VGRS is reactivated.
Sounds and vibrations caused by the ABS, brake assist, TRC, VSC, hill-start assist
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control and VGRS systems
A sound may be heard from the engine compartment when the brake pedal is
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depressed repeatedly, when the engine is started or just after the vehicle begins to
move. This sound does not indicate that a malfunction has occurred in any of these
systems.
Any of the following conditions may occur when the above systems are operating.
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None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
The steering wheel may be moved slightly or a sound may be heard when the
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engine is started or stopped. None of these indicate that a malfunction has
occurred.
EPS operation sound
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When the steering wheel is operated, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.
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