Lexus LS600hL Owner's Manual page 319

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 vehi-
●
cle 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 -22°F (-30°C)
●
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, TRAC, 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 malfunction 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 TRAC/VSC systems
■
Even after the TRAC/VSC systems have been turned off, turning the hybrid system
off and then on again will automatically reactivate the TRAC/VSC systems.
LS600hL_U(OM50D26U)
4-5. Using the driving support systems
319
4