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237
4-5. Using the driving support systems
COROLLA H/B_U
4
Driving
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.
■
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.
■
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.
■
Secondary Collision Brake
operating conditions
The vehicle speed is approximately
6 mph (10 km/h) or more and the
airbag sensor detects a collision.
(The Secondary Collision Brake will
not operate when the vehicle speed
is below approximately 6 mph [10
km/h].)
■
Secondary Collision Brake
automatic cancellation
The Secondary Collision Brake is
automatically canceled in the follow-
ing situations:
●
The vehicle speed drops below
approximately 6 mph (10 km/h)
●
A certain amount of time elapses
during operation
●
The accelerator pedal is
depressed a large amount
WARNING
■
The ABS does not operate
effectively when
●
The limits of tire gripping perfor-
mance have been exceeded
(such as excessively worn tires
on a snow covered road).
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