2009 Lexus LS 460 Owners Manual - Page 290
2009 Lexus LS 460 Manual
Page 290 highlights
2-4. Using other driving systems n Automatic reactivation of TRAC and VSC Turning the "ENGINE START STOP" switch OFF after turning off the TRAC and VSC systems will automatically re-enable them. n Automatic TRAC reactivation If only the TRAC system is turned off, the TRAC system will turn on when vehicle speed increases. n Automatic TRAC/VSC reactivation If the TRAC/VSC systems are turned off, the systems will not turn on even when vehicle speed increases. n Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC, hill-start assist control and VGRS systems l A sound may be heard from the engine compartment 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. l 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. l The steering wheel may be moved slightly or a sound may be heard when the engine is started or stopped. None of these indicate that a malfunction has occurred. n Hill-start assist control is operational when l The shift lever is in the "D" or "S" position. l The brake pedal is not depressed. n EPS operation sound When the steering wheel operates, a motor sound (whirring sound) may be heard. This does not indicate a malfunction. 220