Active Steering Assist; Pre-Collision Seat Belts; Pre-Collision Seatbacks - Lexus LS500 Owner's Manual

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4-5. Using the driving support systems

Active steering assist

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If the system determines that the possi-
bility of a collision with an object, such
as a guardrail, or pedestrian is high,
even though the brakes are applied,
and that the collision may be avoidable
through steering control, the system
will steer the vehicle automatically to
help avoid the collision or help reduce
the impact of the collision.
Pre-collision seat belts (front seat
■
only)
If the system determines that the possi-
bility of a frontal collision is high, the
system will retract the seat belts. Addi-
tionally, the system may retract the seat
belts if the brakes are applied suddenly
or control of the vehicle is lost.
Pre-collision seatbacks (front pas-
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senger's seat / power rear seat [if
equipped])
If the system determines that the possi-
bility of a frontal collision is high, it may
move the seatbacks of the front pas-
senger's seat and power rear seats to
the upright position automatically, if
reclined.
If a seat is being adjusted, it may not be
moved by the pre-collision seat function.
Suspension control
■
When the system determines that the
possibility of a frontal collision is high,
the Adaptive Variable Suspension Sys-
tem (→P.303) will control the damp-
ing force of the shock absorbers to
help maintain an appropriate vehicle
posture.
LS500h_OM_OM50F42U_(U)
Steering control
■
When the system determines that the
possibility of a frontal collision is high
and the driver is operating the steering
wheel, the LDH system (→P.303) will
control the turning angle of the front
and rear wheels and effort necessary
to turn the steering wheel to help
enhance steering responsiveness.
WARNING
Limitations of the pre-collision system
■
The driver is solely responsible for safe
●
driving. Always drive safely, taking
care to observe your surroundings.
Do not use the pre-collision system
instead of normal braking operations
under any circumstances. This system
will not prevent collisions or lessen col-
lision damage or injury in every situa-
tion. Do not overly rely on this system.
Failure to do so may lead to an acci-
dent, resulting in death or serious
injury.
Although this system is designed to
●
help avoid a collision or help reduce
the impact of the collision, its effective-
ness may change according to various
conditions, therefore the system may
not always be able to achieve the same
level of performance.
Read the following conditions care-
fully. Do not overly rely on this system
and always drive carefully.
• Conditions under which the system
may operate even if there is no possi-
bility of a collision: →P.214
• Conditions under which the system
may not operate properly: →P.216
Do not attempt to test the operation of
●
the pre-collision system yourself, as the
system may not operate properly, pos-
sibly leading to an accident.