engine Lexus GS F 2015 s User Guide

621-1. For safe use
GS350_200t_GS F_OM_OM30E87E_(EE)
Insert the mechanical key into the cylin-
der and rotate to the “OFF” position.
The “OFF” indicator light turns on (only
when the engine switch is in IGNITION
ON mode).
■“PASSENGER AIR BAG” indicator information
If any of the following problems occur, it is possible that there is a malfunction in the sys-
tem. Have the vehicle inspected by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
●Neither “ON” nor “OFF” comes on.
●The indicator light does not change when th e airbag manual on-off switch is switched
to “ON” or “OFF”.
Deactivating the front seat passeng er airbag, front passenger knee air-
bag and front passenger side airbag
WA R N I N G
■When installing a child restraint system
For safety reasons, always install a child rest raint system in a rear seat. In the event that
the rear seat cannot be used, the front seat can be used as long as the airbag manual
on-off system is set to off.
If the airbag manual on-off system is left on, the strong impact of the airbag deployment
(inflation) may cause serious injury or even death.
■When a child restraint system is not installed on the front passenger seat
Ensure that the airbag manual on-off system is set to on.
If it is left off, the airbag may not deploy in the event of an accident, which may result in
serious injury or even death.

851-1. For safe use
1
GS350_200t_GS F_OM_OM30E87E_(EE)
For safety and security
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if inhaled.
WA R N I N G
Exhaust gases include harmful carbon monoxi de (CO), which is colorless and odorless.
Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an accident
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 any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional as soon as possible.
■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 running 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 any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional.

861-2. Theft deterrent system
GS350_200t_GS F_OM_OM30E87E_(EE)
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 IGNITION 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 not been prev iously registered in the vehicle’s on-
board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prev ent vehicle theft but does not guarantee
absolute security against all vehicle thefts.

871-2. Theft deterrent system
1
GS350_200t_GS F_OM_OM30E87E_(EE)
For safety and security
■Certifications for the engine immobilizer system

91
1
1-2. Theft deterrent system
GS350_200t_GS F_OM_OM30E87E_(EE)
For safety and security
Double locking system
Vehicles employing this system have
labels on the window glass of both front
doors.
Turn the engine switch off, have all the passengers exit the vehicle and ensure
that all the doors are closed.
Using the entry function:
Touch the sensor area on the outside
door handle twice within 5 seconds.
Using the wireless remote control:
Press twice within 5 seconds.
Using the entry function: Hold the outside door handle.
Using the wireless remote control: Press .
Unauthorized access to the vehicle is prevented by disabling the door unlock-
ing function from both the interior and exterior of the vehicle.
Setting the double locking system
Canceling the double locking system
WA R N I N G
■Double locking system precaution
Never activate the double locking system when there are people in the vehicle
because all the doors cannot be opened from inside the vehicle.

931-2. Theft deterrent system
1
GS350_200t_GS F_OM_OM30E87E_(EE)
For safety and security
Do one of the following to deactivate or stop the alarm:
●Unlock the doors or open the trunk using the entry function or wireless
remote control.
●Turn the engine switch to ACCESSORY or IGNITION ON mode, or start
the engine. (The alarm will be deactivated or stopped after a few seconds.)
■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 follow-
ing:
●Nobody is in the vehicle.
●The windows and moon roof (if equipped) are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
Deactivating or stopping the alarm

951-2. Theft deterrent system
1
GS350_200t_GS F_OM_OM30E87E_(EE)
For safety and security
●The intrusion sensor detects intruders or movement in the vehicle.
●The tilt sensor detects changes in vehicle inclination, such as when the vehicle
is towed away.
This system is designed to deter and pr event vehicle theft but does not guarantee
absolute security against all intrusions.
■Setting the intrusion sensor and tilt sensor
The intrusion sensor and tilt sensor will be set automatically when the alarm is
set. ( →P. 9 2 )
■Canceling the intrusion sensor and tilt sensor
If you are leaving pets or other moving things inside the vehicle, make sure to
stop the intrusion sensor and tilt sensor before setting the alarm, as they will
respond to movement inside the vehicle.
Turn the engine switch off.
Press the intrusion sensor and tilt
sensor cancel switch.
A message will be shown on the
multi-information display in the
instrument cluster.
Press the switch again to re-enable
the intrusion sensor and tilt sensor.
Intrusion sensor (if equipped) and tilt sensor (if equipped)
1
2

961-2. Theft deterrent system
GS350_200t_GS F_OM_OM30E87E_(EE)
■Canceling and automatic re-enabling of the intrusion sensor and tilt sensor
●The alarm will still be set even when the intr usion sensor and tilt sensor are canceled.
●After the intrusion sensor and tilt sensor are canceled, pressing the engine switch or
unlocking the doors using the entry functi on, wireless remote control or mechanical
key will re-enable the intrusion sensor and tilt sensor.
●The intrusion sensor and tilt sensor will au tomatically be re-enabled when the alarm
system is deactivated.
■Intrusion sensor detection considerations (if equipped)
The sensor may trigger the alarm in the following situations:
• The movement of people outside the vehicle
●Places with extreme vibrations or noises, or situations in which the vehicle is subject to
repeated impacts or vibrations:
• When parked in a parking garage
• When the vehicle is transported by a ferry, trailer, train, etc.
• When ice adhering to the vehicle is removed
• When the vehicle is in an automatic or high-pressure car wash
• When in a hail or lightning storm
●A window or the moon roof (if equipped) is
open.
In this case, the sensor may detect the follow-
ing:
• Wind or the movement of objects such asleaves and insects inside the vehicle
• Ultrasonic waves emitted from devices such as the intrusion sensors of other vehi-
cles
●Unstable items, such as dangling accessories
or clothes hanging on the coat hooks, are in
the vehicle.

1022. Instrument cluster
GS350_200t_GS F_OM_OM30E87E_(EE)
Warning lights inform the driver of malfunctions in the indicated vehicle systems.
*1: These lights turn on when the engine switch is turned to IGNITION ON mode toindicate that a system check is being perfor med. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if a light does
not come on, or turn off. Have the vehicle inspected by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
Wa r n i n g l i g h t s
*1Brake system warning light
( → P. 5 1 2 )*1, 3, 4
(If equipped)
“AFS OFF” indicator
(→ P. 5 1 4 )
*1, 2Charging system warning
light ( →P. 5 1 2 )*1, 3, 4Brake hold operated
indicator ( →P. 5 1 4 )
*1Malfunction indicator
lamp ( →P. 5 1 2 )*3Parking brake indicator
(→ P. 5 1 4 )
*1SRS warning light
(→ P. 5 1 2 )*1Brake system warning light
(→ P. 5 1 4 )
*1ABS warning light
(→ P. 5 1 3 )*5Open door warning light
(→ P. 5 1 4 )
*1Electric power steering
system warning light
(→ P. 5 1 3 )Low fuel level warning light
(→ P. 5 1 4 )
*1, 3
(If equipped)
PCS (Pre-Crash Safety
system) warning light
(→ P. 5 1 3 )Seat belt reminder light
(→ P. 5 1 4 )
*1
Slip indicator ( →P. 5 1 3 )*1Master warning light
(→ P. 5 1 4 )
*1
(If equipped)
Tire pressure warning light
(→ P. 5 1 5 )

1052. Instrument cluster
2
Instrument cluster
GS350_200t_GS F_OM_OM30E87E_(EE)
XGS F
●TVD (Torque Vectoring Differential) control mode indicators (GS F)
*1: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
*2: These lights turn on when the engine switch is turned to IGNITION ON mode toindicate that a system check is being perfor med. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if a light does
not come on, or turn off. Have the vehicle inspected by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
*3: GS350/GS200t
*4: The light flashes to indicate that the system is operating.
*5:GS F
*6: The light turns on when the system is turned off. “NORMAL” indicator
(
→ P. 3 5 9 ) Eco drive mode indicator
(
→ P. 3 5 9 )
“SPORT S” indicator
( → P. 3 5 9 ) “SPORT S+” indicator
(
→ P. 3 5 9 )
“EXPERT” indicator
(→ P. 377) Snow mode indicator
(
→ P. 2 4 6 )
(If equipped)
“STANDARD” indicator
(→ P. 3 7 2 )
(If equipped)
“SLALOM” indicator
(→ P. 3 7 2 )
(If equipped)
“TRACK” indicator
(→ P. 3 7 2 )