2018 Lexus GS F engine

331-1. For safe use
GS350_300_GS F_OM_OM30G34U_(U)
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For safety and security
WARNING
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering with the ped-
als while driving. An unexpectedly high spee d may result or it may become difficult to
stop the vehicle. This could lead to an ac cident, resulting in death or serious injury.
■When installing the driver’s floor mat
●Do not use floor mats designed for other models or different model year vehicles,
even if they are Lexus Genuine floor mats.
●Only use floor mats designed for the driver’s seat.
●Always install the floor mat securely using the retain ing hooks (clips) provided.
●Do not use two or more floor mats on top of each other.
●Do not place the floor mat bottom-side up or upside-down.
■Before driving
●Check that the floor mat is securely fixed in
the correct place with all the provided retain-
ing hooks (clips). Be especially careful to per-
form this check after cleaning the floor.
●With the engine stopped and the shift lever in
P, fully depress each pedal to the floor to
make sure it does not interfere with the floor
mat.

711-1. For safe use
GS350_300_GS F_OM_OM30G34U_(U)
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For safety and security
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if inhaled.
WARNING
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 your Lexus dealer 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 your Lexus dealer.

721-2. Theft deterrent system
GS350_300_GS F_OM_OM30G34U_(U)
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 touchi ng a key to the security system (key with a
built-in transponder ch ip) of another vehicle
The vehicle’s keys have built-in transponder chips that prevent the engine
from starting if a key has not been previously 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.

731-2. Theft deterrent system
GS350_300_GS F_OM_OM30G34U_(U)
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For safety and security
■Certifications for the en gine immobilizer system
For vehicles sold in the U.S. mainland, Ha waii, NATO Germany, Guam and Puerto Rico
For vehicles sold in Canada
WARNING
■Certifications for the engine immobilizer system
Changes or modifications not expressly appr oved by the party responsible for compli-
ance 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 mo dified or removed, the proper operation of
the system cannot be guaranteed.

741-2. Theft deterrent system
GS350_300_GS F_OM_OM30G34U_(U)
Alarm
The alarm uses light and sound to give an alert when an intrusion is detected.
The alarm is triggered in the following situations when the alarm is set:
●A locked door is unlocked or opened in any way other than using the entry
function, wireless remote control or mech anical key. (The doors will lock again
automatically.)
●A locked trunk is unlocked or opened in any way other than using the entry
function or wireless remote control.
●The hood is opened.
Close the doors, trunk and hood, and
lock all the doors. The system will be set
automatically after 30 seconds.
The indicator light changes from being
on to flashing when the system is set.
Do one of the following to de activate or stop the alarms:
●Unlock the doors.
●Turn the engine switch to ACCESSOR Y or IGNITION ON mode, or start
the engine. (The alarm will be deactivat ed or stopped after a few seconds.)
The alarm
Setting the alarm system
Deactivating or stopping the alarm

GS350_300_GS F_OM_OM30G34U_(U)
812. Instrument cluster
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Instrument cluster
*1: These lights turn on when the engine switch is turned to IGNITION ON mode toindicate that a system check is being performed. 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 ve hicle inspected by your Lexus dealer.
*2:On some models
*3: The light flashes or illuminates to indicate a malfunction.
*4: The light flashes to indicate a malfunction.
*5: GS350/GS300
*6:GS F
The indicators inform the driver of the op erating state of the vehicle’s various sys-
tems.
Seat belt reminder light
( → P. 436)*1Tire pressure warning light
(→ P. 436)
*1Master warning light
(→ P. 436)
(If equipped)
LKA warning light
(→ P. 437)
Indicators
Turn signal indicator
(→ P. 210) Cruise control indicator
(
→ P. 266, 270)
(U.S.A.)
Headlight indicator
(→ P. 216)
(If equipped)
Dynamic radar cruise
control indicator
(→ P. 258)
(Canada)
Tail light indicator
(→ P. 216) Cruise control
“SET” indicator
(
→ P. 258, 270)
Headlight high beam
indicator ( →P. 216)
(If equipped)
LKA indicator (→ P. 249)
(If equipped)
Automatic High Beam
indicator (→P. 219)*1
(If equipped)
Intuitive parking assist
indicator

84
GS350_300_GS F_OM_OM30G34U_(U)2. Instrument cluster
*1: Refer to the “NAVIGATION AND MU
LTIMEDIA SYSTEM OWNER’S MANUAL”.
*2: These lights turn on when the engine switch is turned to IGNITION ON mode to
indicate that a system check is being performed. 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 ve hicle inspected by your Lexus dealer.
*3: GS350/GS300
*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.
*7: In order to confirm operation, the BSM ou tside rear view mirror indicators illuminate
in the following situations:
• When the engine switch is in IGNITION ON mode, the BSM function is enabled
on of the multi-information display
• When the BSM function is enabled on of the multi-information display, the
engine switch is turned to IGNITION ON mode.
If the system is functioning correctly, the BSM outside rear view mirror indicators will
turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminate or do not turn off,
there may be a malfunction in the system.
If this occurs, have the vehicle inspected by your Lexus dealer.
*8: This light illuminates on the outside rear view mirrors.
*9: This light illuminates on the center panel.
*10: When the outside temperature is approximately 37 °F (3 °C) or lower, the indicator
will flash for approximately 10 seconds, then stay on.

GS350_300_GS F_OM_OM30G34U_(U)
852. Instrument cluster
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Instrument cluster
■Eco Driving Indicator
GS350/GS300
Eco Driving Indicator will not operate under the following conditions:
●The shift lever is in any position other than D.
●A paddle shift swit ch is operated.
●Neither normal mode nor Eco drive mode is selected. ( →P. 273)
●The vehicle speed is approximatel y 80 mph (130 km/h) or higher.
GS F
Eco Driving Indicator will not operate under the following conditions:
●The shift lever is in any position other than D.
●A paddle shift swit ch is operated.
●Neither normal mode nor Eco drive mode is selected. ( →P. 273)
●The vehicle speed is approximatel y 80 mph (130 km/h) or higher.
Eco Driving Indicator Light
During Eco-friendly acceleration (Eco driv-
ing), the Eco Driving Indicator Light will turn
on. When the acceleration exceeds the Zone
of Eco driving, or when
the vehicle is stopped,
the light turns off.
Eco Driving Indicator Zone Display
Suggests the Zone of Eco driving with current
Eco driving ratio based on acceleration.
Eco driving ratio based on acceleration
If the acceleration exceeds the Zone of Eco
driving, the right side of the Eco Driving Indi-
cator Zone Display will illuminate.
Zone of Eco driving
During Eco-friendly acceleration (Eco driving),
the Eco Driving Indicator Light will turn on.
When the acceleration exceeds the Zone of
Eco driving, or when the vehicle is stopped, the
light turns off.
WARNING
■If a safety system warnin g light does not come on
Should a safety system light such as the ABS and SRS warning light not come on when
you start the engine, this could mean that these systems are not available to help pro-
tect you in an accident, which could result in death or serious injury. Have the vehicle
inspected by your Lexus dealer immediately if this occurs.
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