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243
4-5. Using the driving support systems
COROLLA H/B_U
4
Driving
■ Automatic system cancelation
of hill-start assist control
The hill-start assist control will turn
off in any of the following situations:
● Vehicles with a continuously vari-
able transmission: The shift lever
is shifted to P or N.
● Vehicles with a manual transmis-
sion: The shift lever is shifted to R
when starting off forward on an
upward incline, or the shift lever is
shifted to other than R when start-
ing off backward on an upward
incline.
● The accelerator pedal is
depressed
● The parking brake is engaged
● 2 seconds at maximum elapsed
after the brake pedal is released
■ Sounds and vibrations caused
by the ABS, brake assist, VSC,
TRAC and hill-start assist con-
trol systems
● A sound may be heard from the
engine compartment when the
brake pedal is depressed repeat-
edly, when the engine is started or
just after the vehicle begins to
move. This sound does not indi-
cate that a malfunction has
occurred in any of these systems.
● Any of the following conditions
may occur when the above sys-
tems 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 also
after the vehicle comes to a stop.
• The brake pedal may pulsate
slightly after the ABS is activated.
• The brake pedal may move down
slightly after the ABS is activated.
■ Active Cornering Assist opera-
tion sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and
vibrations may be generated from
the brake system, but this is not a
malfunction.
■ EPS operation sound
When the steering wheel is oper-
ated, a motor sound (whirring
sound) may be heard. This does not
indicate a malfunction.
■ Automatic reactivation of TRAC
and VSC systems
After turning the TRAC and VSC
systems off, the systems will be
automatically re-enabled in the fol-
lowing situations:
● When the engine switch is turned
off
● If only the TRAC system is turned
off, the TRAC will turn on when
vehicle speed increases
If both the TRAC and VSC sys-
tems are turned off, automatic
re-enabling will not occur when
vehicle speed increases.
■ Operating conditions of Active
Cornering Assist
The system operates when the fol-
lowing occurs.
● TRAC/VSC can operate
● The driver is attempting to accel-
erate while turning
● The system detects that the vehi-
cle is drifting to the outer side
● The brake pedal is released
■ Reduced effectiveness of the
EPS system
The effectiveness of the EPS sys-
tem is reduced to prevent the sys-
tem from overheating when there is
frequent steering input over an
extended period of time. The steer-
ing wheel may feel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle and turn the engine
off. The EPS system should return
to normal within 10 minutes.
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