Eps Operation Sound; Secondary Collision Brake Operating Conditions; Secondary Collision Brake Automatic Cancellation - Lexus UX200 2021 Manual

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248
4-5. Using the driving support systems
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
Sounds and vibrations caused by the
ABS, brake assist, VSC, TRAC and hill-
start assist control systems
A sound may be heard from the engine
compartment when the brake pedal is
depressed repeatedly, when the engine 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 oper-
ating. None of these indicates that a mal-
function has occurred.
• Vibrations may be felt through the vehi-
cle 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 operation
sounds and vibrations
When 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 operated, 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 following 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
systems are turned off, automatic re-
enabling will not occur when vehicle
speed increases.
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 Colli-
sion Brake will not operate when the vehi-
cle speed is below approximately 6 mph
[10 km/h].)
Secondary Collision Brake automatic
cancellation
The Secondary Collision Brake is automati-
cally canceled in the following situations.
The vehicle speed drops below approxi-
mately 6 mph (10 km/h)
A certain amount of time elapses during
operation
The accelerator pedal is depressed a
large amount
Operating conditions of Active Corner-
ing Assist
The system operates in the following situa-
tions.
TRAC/VSC can operate
The system determines that the vehicle is
drifting to the outer side when attempting
to accelerate during cornering
The brake pedal is released
Reduced effectiveness of the EPS sys-
tem
The effectiveness of the EPS system is

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