Lexus NX300h Owner's Manual page 252

252
4-5. Using the driving support systems
cate that a malfunction has occurred in
any of these systems.
● Any of the following conditions may
occur when the above systems are oper-
ating.
None of these indicates that a malfunc-
tion has occurred.
• Vibrations may be felt through the vehicle
body and steering.
• A motor sound may be heard also after
the vehicle comes to a stop.
ECB operating sound
■
ECB operating sound may be heard in the
following cases, but it does not indicate that
a malfunction has occurred.
● Operating sound heard from the engine
compartment when the brake pedal is
operated.
Motor sound of the brake system heard
●
from the front part of the vehicle when
the driver's door is opened.
● Operating sound heard from the engine
compartment when one or two minutes
passed after the stop of the hybrid sys-
tem.
EPS operation sound
■
When the steering wheel is operated, a
motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
Reduced effectiveness of the EPS sys-
■
tem
The effectiveness of the EPS system is
reduced to prevent the system from over-
heating when there is frequent steering
input over an extended period of time. The
steering wheel may feel heavy as a result.
Should this occur, refrain from excessive
steering input or stop the vehicle and turn
the hybrid system off. The EPS system
should return to normal within 10 minutes.
Automatic reactivation of TRAC, Trailer
■
Sway Control and VSC systems
After turning the TARC, Trailer Sway Con-
trol and VSC systems off, the systems will
be automatically re-enabled in the following
situations:
● When the power switch is turned off
If only the TRAC system is turned off, the
●
LEXUS NX300h
al_USA_OM78212U
Owners Manu-
TRAC will turn on when vehicle speed
increases
● If only the TRAC system is turned off, the
TRAC will turn on when vehicle speed
increases
If both the TRAC and VSC systems are
turned off, automatic re-enabling will not
occur when vehicle speed increases.
Operating conditions of hill-start assist
■
control
When the following four conditions are met,
the hill-start assist control will operate:
● The shift lever is in a position other than P
or N (when starting off forward/back-
ward on an upward incline).
The vehicle is stopped.
●
● The accelerator pedal is not depressed.
The parking brake is not engaged.
●
■ Automatic system cancelation of hill-
start assist control
The hill-start assist control will turn off in any
of the following situations:
The shift lever is shifted to P or N.
●
● The accelerator pedal is depressed.
The parking brake is engaged.
●
● 2 seconds at maximum elapsed after the
brake pedal is released
WARNING
■ The ABS does not operate effectively
when
● The limits of tire gripping performance
have been exceeded (such as exces-
sively worn tires on a snow covered
road).
● The vehicle hydroplanes while driving
at high speed on wet or slick road.