Lexus LS600hl - Page 396

382
4-5. Using the driving support systems
LS600h/LS600hL_EE(OM50D61E)
 Hill-start assist control is operational when
 The system has detected that the vehicle is moving backward.
 The shift lever is in the D or S position.
 The brake pedal is not depressed.
 VGRS is disabled when
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 vehicle is stopped or is moving very slowly
 When the steering wheel has been held fully to the left or right
 When the 12-volt battery is low or the voltage temporarily drops
 After the hybrid system is started at lower than -30°C (-22°F)
The center position of the steering wheel may change when VGRS is dis-
abled. However, the position will return to normal after VGRS is reactivated.
 Sounds and vibrations caused by the ABS, brake assist, TRC, VSC, hill-start
assist control and VGRS systems
 A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, 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
operating. 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 hybrid system is started or stopped. None of these indicate that a mal-
function has occurred.
 EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
 Reactivation of the TRC/VSC systems
Even after the TRC/VSC systems have been turned off, turning the hybrid
system off and then on again will automatically reactivate the TRC/VSC sys-
tems.