2012 Lexus GS350 engine

855
8 8-1. Specifications
Vehicle specifications
GS350/250_EE (OM30C36E)
NOTICE
Notice on fuel quality
Do not use improper fuels. If improper fuels are used, the engine will be
damaged.
Do not use leaded gasoline.
Leaded gasoline will cause the three-way catalytic converter to lose its
effectiveness and the emission control system to function improperly.
Gasoline engine (EU area): Bioethanol fuel sold under names such as
“E50” or “E85” and fuel containing a large amount of ethanol should not
be used. The use of these fuels will damage the vehicle’s fuel system. In
case of any doubt, ask any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
Gasoline engine (except EU area): Bioethanol fuel sold under names such
as “E50” or “E85” and fuel containing a large amount of ethanol should
not be used. Your vehicle can use gasoline mixed with 10% max ethanol.
The use of fuel with more than 10% ethanol content (E10) will damage
the vehicle’s fuel system. You must ensure that refueling is carried out
only from a source where fuel specification and quality can be guaranteed.
In case of any doubt, ask any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.

8608-2. Customization
GS350/250_EE (OM30C36E)
Front seats
(P. 157)
“Driver’s seat easy exit”
(Driver’s seat move-
ment when exiting the
Standard
Off
O—O
Partial
Selecting the door link-
ing driving position
memory with door
unlock operation
Driver’s
doorAll doors——O
Outside
rear view
mirrors
(P. 174)Automatic mirror fold-
ing and extending opera-
tion
*1
Linked to
the
locking/
unlocking
of the
doorsOff
——O
Linked to
operation
of the
engine
switch
Power
windows
(P. 178)
and moon
roof
*1
(P. 181)
Mechanical key linked
operationOffOn——O
Wireless remote control
linked operationOffOn——O
Buzzer sounds if oper-
ated using wireless
remote control
OnOff——O
ItemFunctionDefault
settingCustom-
ized set-
ting
123

863
8 8-2. Customization
Vehicle specifications
GS350/250_EE (OM30C36E)
Automatic
air condi-
tioning
system
(P. 409)
“Efficient ventilation
mode” (Switching
between outside air and
recirculated air mode
linked to “AUTO”
switch operation)
OnOffO—O
“Auto A/C mode” (A/C
Auto switch operation)OnOffO—O
“Smog sensor sensitiv-
ity” (Exhaust gas sensor
sensitivity)
Standard-3 to 3O—O
Illumina-
tion
(P. 6 1 1 )
Interior lights illumina-
tion controlOnOff——O
“Interior lights off
timer” (Time elapsed
before the interior lights
turn off)
15 sec-
onds
7.5
seconds
O—O30
seconds
Operation after the
engine switch is turned
off
OnOff——O
Operation when the
doors are unlockedOnOff——O
Operation when you
approach the vehicle
with the electronic key
on your person
OnOff——O
Footwell lightingOnOff——O
Outer foot lightsOnOff——O
ItemFunctionDefault
settingCustom-
ized set-
ting
123

865
8 8-2. Customization
Vehicle specifications
GS350/250_EE (OM30C36E)
Vehicle customization
When the smart entry & start system is off, the “Select doors to unlock”
cannot be customized.
When the doors remain closed after unlocking the doors and the “Auto
relock timer” activates, the signals will be generated in accordance with the
“Lock/unlock feedback lights” settings.
When customizing using the Remote Touch
Stop the vehicle in a safe place, apply the parking brake, and shift the shift
lever to P. Also, to prevent battery discharge, leave the engine running while
customizing the features.
CAUTION
During customization
As the engine needs to be running during customization, ensure that the
vehicle is parked in a place with adequate ventilation. In a closed area such
as a garage, exhaust gases including harmful carbon monoxide (CO) may
collect and enter the vehicle. This may lead to death or a serious health haz-
ard.
NOTICE
During customization
To prevent battery discharge, ensure that the engine is running while cus-
tomizing features.

868What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
What to do if... (Troubleshooting)
If you lose your mechanical keys, new genuine mechani-
cal keys can be made by any authorized Lexus dealer or
repairer, or another duly qualified and equipped profes-
sional. (P. 120)
If you lose your electronic keys, the risk of vehicle theft
increases significantly. Contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped
professional immediately. (P. 122)
Is the electronic key battery weak or depleted? (P. 697)
Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (P.
208)
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the
electronic key on your person.
The function may not operate properly due to the condi-
tion of the radio wave. (P. 130)
If you have a problem, check the following before contacting any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked

870What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
Did you press the engine switch while firmly depressing
the brake pedal? (P. 207)
Is the shift lever in P? (P. 211)
Is the electronic key anywhere detectable inside the vehi-
cle?
(P. 126)
Is the steering wheel unlocked? (P. 212)
Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way.
(P. 823)
Is the battery discharged? (P. 825)
Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the
brake pedal with the engine switch in IGNITION ON
mode
(P. 818)
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from P even if you depress
the brake pedal

871What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
It is locked automatically to prevent theft of the vehicle.
(P. 211)
Is the window lock switch pressed?
The power window except for the one at the driver’s seat
cannot be operated if the window lock switch is pressed.
(P. 178)
The auto power off function will be operated if the vehi-
cle is left in ACCESSORY or IGNITION ON mode (the
engine is not running) for a period of time. (P. 211) The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches
The engine switch is turned off automatically

872What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat
belts?
(P. 752)
The parking brake indicator is on
Is the parking brake released? (P. 225)
Depending on the situation, other types of warning buzzer
may also sound. (P. 749, 757)

Did anyone inside the vehicle open a door or anything
move inside the vehicle during setting the alarm?
The sensor detects them and the alarm sounds. (P. 86)
To stop the alarm, turn the engine switch to IGNITION ON
mode or start the engine. A warning buzzer sounds during driving
An alarm is activated and the horn sounds (if equipped)