2014 Lexus IS250C Owner's Manual

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IS250C/350C_U
1-7. Safety information
Correct driving posture
Drive in a good posture as follows:
Sit upright and well back in
the seat. (→P. 5 5 )
Adjust the position of the seat
forward or backward to
ensure the pedals can be
reached and easily
depressed to the extent
required. ( →P. 5 5 )
Adjust the seatback so that
the controls are easily opera-
ble. ( →P. 5 5 )
Adjust the tilt and telescopic
positions of the steering
wheel downward so the
airbag is facing your chest.
(→ P. 76 )
Lock the head restraint in
place with the center of the
head restraint closest to the
top of your ears. ( →P. 6 7 )
Wear the seat belt correctly.
(→ P. 7 0 )

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1-7. Safety information
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Before driving
IS250C/350C_U
CAUTION
■While driving
●Do not adjust the position of the driver’s seat while driving.
Doing so could cause the driver to lose control of the vehicle.
●Do not place a cushion between the driver or passenger and the seatback.
A cushion may prevent correct posture from being achieved, and reduce the
effectiveness of the seat belt and head restraint, increasing the risk of death or
serious injury to the driver or passenger.
●Do not place anything under the front seats.
Objects placed under the front seats may become jammed in the seat tracks and
stop the seat from locking in place. This may lead to an accident. The adjustment
mechanism may also be damaged.
■Adjusting the seat position:
●Take care when adjusting the seat position to ensure that other passengers are
not injured by the moving seat.
●Do not put your hands under the seat or near the moving parts to avoid injury.
Fingers or hands may become jammed in the seat mechanism.

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1-7. Safety information
IS250C/350C_U
SRS airbags
The SRS airbags inflate when the vehicle is subjected to certain types of
severe impacts that may cause significant injury to the occupants. They
work together with the seat belts to help reduce the risk of death or serious
injury.
SRS front airbags
SRS driver airbag/front passenger airbag
Can help protect the head and chest of the driver and front passen-
ger from impact with interior components.
Knee airbags
Can help provide driver and front passenger protection.
SRS side airbags
Head and torso side airbags
Can help protect the head and torso of the front seat occupants.

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1-7. Safety information
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Before driving
IS250C/350C_U
Airbag system componentsYour vehicle is equipped with ADVANCED AIRBAGS designed based
on the US motor vehicle safety standards (FMVSS208). The airbag sen-
sor assembly (ECU) controls airbag deployment based on information
obtained from the sensors etc. shown in the system components diagram
above. This information includes crash severity and occupant informa-
tion. As the airbags deploy, a chemical reaction in the inflators quickly fills
the airbags with non-toxic gas to help restrain the motion of the occu-
pants. Knee airbags
Front passenger airbag
“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Side airbags
Side airbag sensors
Seat belt pretensioners and
force limiters
SRS warning light
Driver airbag
Driver's seat belt buckle switch
Driver's seat position sensor
Front passenger’s seat belt
buckle switch
Airbag sensor assembly
Front passenger occupant
classification system
(ECU and sensors)
Front airbag sensors

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1-7. Safety information
IS250C/350C_U
■SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag sensors,
side airbag sensor assemblies, driver's seat position sensor, driver's seat belt buckle
switch, front passenger occupant classification system (ECU and sensors), “AIR
BAG ON” indicator light, “AIR BAG OFF” indicator light, front passenger’s seat
belt buckle switch, seat belt pretensioner assemblies, airbags, interconnecting wir-
ing and power sources. (→P. 4 9 2 )
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasions may result from contact with a deploying (inflating)
SRS airbag.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel, airbag cover and inflator) as well as
the front seats may be hot for several minutes. The airbag itself may also be hot.
●The windshield may crack.
●For Safety Connect subscribers, if the SRS airbags deploy or in the event of a
severe rear-end collision, the system is designed to send an emergency call to
the response center, notifying them of the vehicle’s location (without needing to
push the “SOS” button) and an agent will attempt to speak with the occupants
to ascertain the level of emergency and assistance required. If the occupants
are unable to communicate, the agent automatically treats the call as an emer-
gency and helps to dispatch the necessary emergency services. ( →P. 388)
■SRS airbag deployment conditions (SRS front airbags)
●The SRS front airbags will deploy in the event of an impact that exceeds the
set threshold level (the level of force corresponding to an approximately 12 -
18 mph [20 - 30 km/h] frontal collision with a fixed wall that does not move or
deform).
However, this threshold velocity will be considerably higher if the vehicle strikes
an object, such as a parked vehicle or sign pole, which can move or deform on
impact, or if the vehicle is involved in an underride collision (e.g. a collision in
which the front of the vehicle “underrides”, or goes under, the bed of a truck, etc.).

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1-7. Safety information
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Before driving
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●Depending on the type of collision, it is possible that only the seat belt
pretensioners will activate.
●The SRS front airbags for the front passenger will not activate if there is no pas-
senger sitting in the front passenger seat. However, the SRS front airbags for the
front passenger may deploy if luggage is put in the seat, even if the seat is unoc-
cupied. (→P. 1 1 7 )
■SRS airbag deployment conditions (SRS side airbags)
The SRS side airbags will deploy in the event of an impact that exceeds the set
threshold level (the level of force corresponding to the impact force produced by
an approximately 3300 lb. [1500 kg] vehicle colliding with the vehicle cabin from
a direction perpendicular to the vehicle orientation at an approximate speed of 12 -
18 mph [20 - 30 km/h]).
■Conditions under which the SRS airbags may deploy (inflate), other than a colli-
sion
The SRS front airbags may also deploy if a serious impact occurs to the underside of
your vehicle. Some examples are shown in the illustration.
●Hitting a curb, edge of pavement or hard
surface
●Falling into or jumping over a deep hole
●Landing hard or vehicle falling

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1-7. Safety information
IS250C/350C_U
■Types of collisions that may not deploy the SRS airbag (SRS front airbags)
The SRS front airbags are generally not designed to inflate if the vehicle is involved
in a side or rear collision, if it rolls over, or if it is involved in a low-speed frontal colli-
sion. But, whenever a collision of any type causes sufficient forward deceleration of
the vehicle, deployment of the SRS front airbags may occur.
■Types of collisions that may not deploy the SRS airbag (SRS side airbags)
The SRS side airbag system may not activate if the vehicle is subjected to a collision
from the side at certain angles, or a collision to the side of the vehicle body other
than the passenger compartment.
The SRS side airbags are not generally designed to inflate if the vehicle is involved in
a frontal or rear collision, if it rolls over, or if it is involved in a low-speed side colli-
sion.
●Collision from the side
●Collision from the rear
●Vehicle rollover
●Collision from the side to the vehicle body
other than the passenger compartment
●Collision from the side at an angle
●Collision from the front
●Collision from the rear
●Vehicle rollover

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1-7. Safety information
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Before driving
IS250C/350C_U
■When to contact your Lexus dealer
In the following cases, contact your Lexus dealer as soon as possible.
●Any of the SRS airbags have been inflated.
●The front of the vehicle is damaged or
deformed, or was involved in an accident
that was not severe enough to cause the
SRS airbags to inflate.
●A portion of the doors is damaged or
deformed, or the vehicle was involved in an
accident that was not severe enough to
cause the SRS side airbags to inflate.
●The pad section of the steering wheel,
dashboard or lower portion of the instru-
ment panel is scratched, cracked, or other-
wise damaged.
●The surface of the seats with the side
airbag is scratched, cracked, or otherwise
damaged.