2011 Lexus GS 450h Owners Manual - Page 215
2011 Lexus GS 450h Manual
Page 215 highlights
2-4. Using other driving systems
217
2-4. Using other driving systems
2
When driving
GS_HV_U (OM30C14U)
June 29, 2011 5:09 pm
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Automatic reactivation of TRAC and Enhanced VSC
Turning the “POWER” switch OFF after turning off the TRAC and Enhanced VSC
systems will automatically re-enable them.
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Automatic TRAC reactivation
If only the TRAC system is turned off, the TRAC system will turn on when the vehi-
cle speed increases.
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Automatic TRAC and Enhanced VSC reactivation
If the TRAC and Enhanced VSC systems are turned off, the systems will not turn on
even when the vehicle speed increases.
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Sounds and vibrations caused by the ABS, brake assist, Enhanced VSC, TRAC,
hill-start assist control and VGRS systems
●
A sound may be heard from the engine compartment when the hybrid system 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 operat-
ing. 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 brake pedal may pulsate slightly after the ABS is activated.
°
The brake pedal may move down slightly after the ABS is activated.
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Hill-start assist control operating conditions
This system comes into operation under the following conditions after the brake
pedal has been depressed and the vehicle has come to a stop:
●
The shift lever is in the “D” or “S”.
●
The system has detected that the vehicle is moving backwards.
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EPS operation sound
When the steering wheel operates, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.