ECU Lexus GS350 2013 Owner's Guide

661-1. For safe use
GS350_U (OM30C34U)
CAUTION
■When installing a child restraint system
●When a booster seat is installed, always ensure that the shoulder belt is posi-
tioned across the center of the child’s shoulder. The belt should be kept away from
the child’s neck, but not so that it could fall off the child’s shoulder. Failing to do so
may result in death or serious injury in the event of an accident or a sudden brak-
ing.
●Ensure that the belt and plate are securely locked and the seat belt is not twisted.
●Shake the child restraint system left and right, and forward and backward to
ensure that it has been securely installed.
●After securing a child restraint system, never adjust the seat.
●Follow all installation instructions provided by the child restraint system manufac-
turer.
■Do not use a seat belt extender
If a seat belt extender is used when installing a child restraint system, the seat belt
will not securely hold the child restraint system, which could cause death or serious
injury to the child or other passengers in the event of a sudden braking, sudden
swerving or an accident.
■To correctly attach a child restraint system to the anchors
When using the LATCH anchors, be sure that there are no foreign objects around
the anchors and that the seat belt is not caught behind the child restraint system.
Make sure the child restraint system is securely attached, or it may cause death or
serious injury to the child or other passengers in the event of a sudden braking or
an accident.

671-1. For safe use
GS350_U (OM30C34U)
1
For safety and security
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if
inhale.
CAUTION
Exhaust gases include harmful carbon monoxide (CO), which is colorless and odor-
less. Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an acci-
dent caused by light-headedness, or may lead to death or a serious health hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehicle even when the trunk lid is closed, open
the windows and have the vehicle inspected at your Lexus dealer as soon as pos-
sible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop
the engine.
●Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and
ensure that exhaust fumes do not enter the vehicle interior.
●Do not leave the engine running in an area with snow build-up, or where it is
snowing. If snowbanks build up around the vehicle while the engine is running,
exhaust gases may collect and enter the vehicle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack
caused by corrosion, damage to a joint or abnormal exhaust noise, be sure to have
the vehicle inspected and repaired by your Lexus dealer.

681-2. Theft deterrent system
GS350_U (OM30C34U)
Engine immobilizer system
The indicator light flashes after the
engine switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing
after the engine switch has been
turned to ACCESSORY or IGNI-
TION ON mode to indicate that the
system has been canceled.
■System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching a key to the security system (key with a
built-in transponder chip) of another vehicle
The vehicle’s keys have built-in transponder chips that prevent the
engine from starting if a key has no t been previously registered in the
vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.

691-2. Theft deterrent system
GS350_U (OM30C34U)
1
For safety and security
■Certifications for the engine immobilizer system
XFor vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-3
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
XFor vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
CAUTION
■Certifications for the engine immobilizer system
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation
of the system cannot be guaranteed.

711-2. Theft deterrent system
GS350_U (OM30C34U)
1
For safety and security
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the fol-
lowing:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
When the alarm is operating, the doors are locked automatically to prevent intrud-
ers.
●A person inside the vehicle opens a door,
the trunk or hood.
●The battery is recharged or replaced when
the vehicle is locked. (→P. 74 5 )
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation
of the system cannot be guaranteed.

101
GS350_U (OM30C34U)3-2. Opening, closing and locking the doors and trunk
3
Operation of each component
Smart access system with push-button start
The following operations can be performed simply by carrying the elec-
tronic key on your person, for example in your pocket. (The driver should
always carry the electronic key.)
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: once; Unlocked: twice)
■Security feature
If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
■Welcome light illumination control
The side marker, parking, tail and license plate lights automatically turn on at night
when the doors are unlocked using the entry function or wireless remote control if
the light switch is in the “AUTO” position.
Function summary
Locks and unlocks the doors ( →P. 1 0 2 )
Opens the trunk ( →P. 1 0 2 )
Starts the engine ( →P. 171)1
2
3

GS350_U (OM30C34U)
1153-2. Opening, closing and locking the doors and trunk
3
Operation of each component
■Operation signals
Doors:
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: once; Unlocked: twice)
Tr u n k :
A buzzer sounds to indicate that the trunk has been opened.
Windows and moon roof:
A buzzer sounds to indicate that the windows and moon roof are operating.
■Welcome light illumination control
→P. 1 0 1
■Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a buzzer
sounds continuously for 5 seconds. Fully cl ose the door to stop the buzzer, and lock
the vehicle once more.
■Pa ni c m o d e
■Security feature
→ P. 1 0 1
■Alarm
Using the wireless remote control to lock the doors will set the alarm system.
(→ P. 7 0 )
■Conditions affecting operation
→P. 1 0 8
When is pressed for longer than about
one second, an alarm will sound intermittently
and the vehicle lights will flash to deter any
person from trying to break into or damage
your vehicle.
To stop the alarm, press any button on the
electronic key.

122
GS350_U (OM30C34U)
3-2. Opening, closing and locking the doors and trunk
Pressing the switch closes the trunk
lid automatically. (A buzzer sounds.)
Pressing the switch while the trunk lid
is closing opens the trunk lid again.
The trunk opener switch can be temporarily disabled to protect luggage
stored in the trunk against theft.
Turn the main switch in the glove
box off to disable the trunk opener.On
Off
The trunk lid cannot be opened even
with the wireless remote control or the
entry function.
■Trunk light
The trunk light turns on when the trunk is opened.
■Tr u n k h a n d l e
Trunk closer switch (vehicles with power trunk opener and closer)
Luggage security system
1
2
Use the trunk handle when closing the trunk.

GS350_U (OM30C34U)
1253-2. Opening, closing and locking the doors and trunk
3
Operation of each component
CAUTION
■Using the trunk
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in serious
injury.
●Remove any heavy loads, such as snow and ice, from the trunk lid before opening
it. Failure to do so may cause the trunk lid to fall closed again after it is opened.
●When opening or closing the trunk lid, thoroughly check to make sure the sur-
rounding area is safe.
●If anyone is in the vicinity, make sure they are safe and let them know that the
trunk is about to open or close.
●Use caution when opening or closing the trunk lid in windy weather as it may
move abruptly in strong wind.
●Do not attach any accessories other than genuine Lexus parts to the trunk lid.
Such additional weight on the trunk lid may cause the lid to fall closed again after
it is opened.
●The trunk lid may fall if it is not opened fully.
It is more difficult to open or close the trunk
lid on an incline than on a level surface, so
beware of the trunk lid unexpectedly open-
ing or closing by itself. Make sure that the
trunk lid is fully open and secure before
using the trunk.
●When closing the trunk lid, take extra care
to prevent your fingers etc. from being
caught.
●When closing the trunk lid, make sure to
press it lightly on its outer surface. If the
trunk handle is used to fully close the trunk
lid, it may result in hands or arms being
caught.

126
GS350_U (OM30C34U)
3-2. Opening, closing and locking the doors and trunk
CAUTION
■Trunk easy closer (vehicles with power trunk opener and closer)
■Power trunk opener and closer (if equipped)
Observe the following precautions when operating the power trunk opener and
closer.
Failure to do so may cause serious injury.
●Check the safety of the surrounding area to make sure there are no obstacles or
anything that could cause any of your belongings to get caught.
●If anyone is in the vicinity, make sure they are safe and let them know that the
trunk is about to open or close.
●If the trunk closer switch is pressed while the trunk lid is opening during automatic
operation, the trunk lid stops opening. Take extra care when on an incline, as the
trunk lid may open or close suddenly.
●On an incline, the trunk lid may fall after it opens automatically. Make sure the
trunk lid is fully open and secure before using the trunk.
●In the following situations, the power trunk opener and closer may detect an
abnormality and automatic operation may be stopped. In this case, the trunk lid
has to be operated manually. Take extra care in this situation, as the stopped trunk
lid may suddenly fall, causing an accident.
• When the trunk lid contacts an obstacle
• When the battery voltage suddenly drops, such as when the engine switch is turned to IGNITION ON mode or the engine is started during automatic
operation
●Do not attach any accessories other than genuine Lexus parts to the trunk lid. The
power trunk opener and closer may not operate, causing itself to malfunction, or
the trunk lid may fall closed again after it is opened.
In the event that the trunk lid is left slightly
open, the trunk easy closer will automatically
close it to the fully closed position. It takes
several seconds before the trunk easy closer
begins to operate. Be careful not to catch fin-
gers or anything else in the trunk lid, as this
may cause bone fractures or other serious
injuries.