es 350 Lexus ES350 2008 Repair Manual

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1-6. Theft deterrent system
1
Before driving
ES350_U_(L/O_0708)
CAUTION
Changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
NOTICE
■To prevent damage to the key
Do not modify, remove or disable the engine immobilizer system. If any unautho-
rized changes or modifications are made, the proper operation of the system can-
not be guaranteed.

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1-6. Theft deterrent system
ES350_U_(L/O_0708)
Alarm
Deactivating or stopping the alarmDo one of the following:
● Unlock the doors or trunk using the entry function or the wireless
remote door lock function.
● Start the engine.
■Items to check before locking the vehicle
To prevent unintended triggering of the alarm, check that there is no one in the vehi-
cle, and that all windows and moon roof are closed before locking the vehicle.
The system sounds the alarm and flashes lights when forcible entry is
detected.
Close the moon roof and all
windows. Stop the engine.
The engine immobilizer system
causes the indicator light to
flash.
After all people exit out of the
vehicle, close the doors, trunk
and hood, and lock all doors.
The indicator light comes on.
The indicator light changes from
being on to a flashing pattern
when the alarm system is set.

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1-6. Theft deterrent system
1
Before driving
ES350_U_(L/O_0708)
■Panic mode
■When the battery is disconnected
Be sure to cancel the alarm system.
If the battery is discharged before canceling the alarm, the system may be triggered
when the battery is reconnected.When is pushed for longer than about
one second, the headlights/tail lights/emer-
gency flashers will flash, the front and rear
interior lights will come on, and an alarm will
sound for about 60 seconds to deter any
person from trying to break into or damage
your vehicle.
To stop the alarm, push any button on the
wireless remote control.

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1-6. Theft deterrent system
ES350_U_(L/O_0708)
Theft prevention labels (for USA)
These labels are attached to the
vehicle to reduce vehicle theft
by facilitating the tracing and
recovery of parts from stolen
vehicles. Do not remove under
penalty of law.

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1
Before driving
ES350_U_(L/O_0708)
1-7. Safety information
Correct driving posture
Drive in a good posture as follows:
Sit upright and well back in
the seat. (→P. 4 3 )
Adjust the position of the seat
forward or backward to
ensure the pedals can be
reached and easily
depressed to the extent
required. ( →P. 4 3 )
Adjust the seatback so that
the controls are easily opera-
ble.
Adjust the tilt and telescopic
positions of the steering
wheel downward so the
airbag is facing your chest.
(→ P. 56)
Lock the head restraint in
place with the center of the
head restraint closest to the
top of your ears. ( →P. 4 9 )
Wear the seat belt correctly.
(→ P. 50)

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1-7. Safety information
ES350_U_(L/O_0708)
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
1-7. Safety information
Before driving
ES350_U_(L/O_0708)
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.
Front airbags
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 protect the knee of the driver and front passenger.
Side and curtain shield airbags
Side airbags
Can help protect the torso of the front seat occupants and rear seat
outside occupants (if equipped).
Curtain shield airbags
Can help protect primarily the head of outside occupants.

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1-7. Safety information
ES350_U_(L/O_0708)
Airbag system componentsYour vehicle is equipped with ADVANCED AIRBAGS designed based
on US motor vehicle safety standards (FMVSS208). The airbag system
controls airbag deployment power for the driver and front passenger. The
driver airbag system consists of the driver seat’s position sensor etc. The
front passenger’s airbag system consists of the front passenger occupant
classification sensor etc. Front passenger airbag
Curtain shield airbags
AIR BAG ON and AIR BAG
OFF indicator lights
Side airbags for the front pas-
sengers
Side and curtain shield airbag
sensors
Curtain shield airbag sensors
Side airbags for the rear out-
side passengers (if equipped)
SRS warning light
Driver airbag
Driver's seat position sensor
Knee airbags
Driver's seat belt buckle switch
Front passenger’s seat belt
buckle switch
Airbag sensor assembly
Occupant detection system
(ECU and sensors)
Front airbag sensors

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1-7. Safety information
1
Before driving
ES350_U_(L/O_0708)The main SRS airbag system components are shown above. The SRS
airbag system is controlled by the airbag sensor assembly. The airbag
sensor assembly consists of a safing sensor and an airbag sensor.
In certain types of severe frontal or side impacts, the SRS airbag system
triggers the airbag inflators. A chemical reaction in the inflators quickly
fills the airbags with non-toxic gas to help restrain the motion of the occu-
pants.
■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 hub, airbag cover and inflator) as
well as the seats, and parts of the front pillar, rear pillar and roof side rail, may be
hot for several minutes. The airbag itself may also be hot.
●The front windshield may crack.
■Operating conditions (front airbags)
●The SRS front airbags will deploy if the severity of the frontal impact is above the
designed threshold level, comparable to an approximate 15 mph (25 km/h) col-
lision when the vehicle impacts straight into a fixed barrier 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.).
●It is possible that in some collisions where the forward deceleration of the vehi-
cle is very close to the designed threshold level, the SRS front airbags and the
seat belt pretensioners may not activate together.
●The SRS front passenger airbag will not activate if there is no passenger sitting
in the front passenger seat. However, the front passenger airbag may deploy if
luggage is put in the seat, or the seat belt is fastened, even if the seat is unoccu-
pied. (
→P. 8 8 )

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1-7. Safety information
ES350_U_(L/O_0708)
■Operating conditions (side and curtain shield airbags)
●The SRS side airbags and curtain shield airbags are designed to inflate when the
passenger compartment is subjected to a severe impact from the side.
●The SRS side airbag on the passenger seat will not activate if there is no passen-
ger sitting in the front passenger seat. However, the side airbag on the passen-
ger seat may deploy if luggage is put in the seat, even if the seat is unoccupied.
(→ P. 8 8 )
■Conditions under which the SRS airbags ma y 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.
■Types of collisions that may not deploy the SRS airbag (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.
●Hitting a curb, edge of pavement or hard
surface
●Falling into or jumping over a deep hole
●Landing hard or vehicle falling
●Collision from the rear
●Collision from the side
●Vehicle rollover