Lexus GS430, User Manual

Page: 453 / 632

STARTING AND DRIVING
429
HILL−START ASSIST CONTROL
SYSTEM
The hill−start assist control system assists you in starting
to move up a steep or slippery hill. When you start to move
up the hill slope, the system helps to reduce the vehicle’s
rolling backward distance while you move your foot from
the brake pedal to the accelerator pedal.
CAUTION
Do not rely excessively on the hill−start assist control
system. The vehicle may not be able to start
smoothly on road surfaces or off−road surfaces such
as extremely steep slopes or icy roads, on which
sliding can occur very easily.
Do not use the hill−start assist control system to stop
the vehicle. This system is not designed for stopping
the vehicle on an uphill slope.
The hill−start assist control system will operate for 5
seconds maximally when all of the following conditions
apply.
When the selector lever is in “D” or “S” position
When the brake pedal is not depressed
The system is designed to operate when the vehicle is starting
on an uphill slope; therefore, if the selector lever is in “P” or “N”,
it will not operate. It will not operate either if the vehicle starts
to move in reverse on a slope with the selector lever in “R”.
When the hill
−
start assist control system is operating, you may
hear a sound. This indicates the hill
−
start assist control is
operating normally and does not indicate a malfunction.
G31038
Slip indicator light
When the hill
−
start assist control system is operating, the slip
indicator light flashes. At the same time, the stop lights and
high mounted stoplight are lit.