battery Lexus GS F 2015 s Owner's Guide

2444-2. Driving procedures
GS350_200t_GS F_OM_OM30E87E_(EE)
NOTICE
■To prevent battery discharge
●Do not leave the engine switch in ACCESSORY or IGNITION ON mode for long
periods of time without the engine running.
●If “POWER ON” is displayed on the multi-information display, the engine switch is
not off. Exit the vehicle after turning the engine switch off.
●Do not stop the engine when the shift lever is in a position other than P. If the engine is
stopped in another shift lever position, the engine switch will not be turned off but
instead be turned to ACCESSORY mode. If the vehicle is left in ACCESSORY
mode, battery discharge may occur.
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start or stalls frequently, have your vehicle checked
by any authorized Lexus dealer or repairer, or another duly qualified and equipped
professional immediately
■Symptoms indicating a malfunction with the engine switch
If the engine switch seems to be operating somewhat differently than usual, such as the
switch sticking slightly, there may be a malfunction. Contact any authorized Lexus
dealer or repairer, or another duly qualif ied and equipped professional immediately.

2624-3. Operating the lights and wipers
GS350_200t_GS F_OM_OM30E87E_(EE)
■Daytime running light system
To make your vehicle more visible to other drivers during daytime driving, the daytime
running lights turn on automatically whenever the engine is started and the parking
brake is released with the headlight switch is in the “AUTO” position. (Illuminate brighter
than the front position lights.)
Daytime running lights are not designed for use at night.
■Headlight control sensor
■Automatic light off system
●When the light switch is in : The headlig hts turn off automatically if the engine
switch is turned to ACCESSORY mode or turned off.
●When the light switch is in : The headlights and all lights turn off automatically if the
engine switch is turned to ACCESSORY mode or turned off.
To turn the lights on again, turn the engine switch to IGNITION ON mode, or turn the
light switch off once and then back to or .
■Light reminder buzzer
A buzzer sounds when the engine switch is turned off or turned to ACCESSORY mode
and the driver’s door is opened while the lights are turned on.
■Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number of passen-
gers and the loading condition of the vehicle to ensure that the headlights do not inter-
fere with other road users.
■If the “AFS OFF” indicator flashes
It may indicate a malfunction in the system. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
■Customization
Settings (e.g. light sensor se nsitivity) can be changed.
(Customizable features: →P. 6 2 8 )
The sensor may not function properly if an
object is placed on the sensor, or anything that
blocks the sensor is affixed to the windshield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.

2974-5. Using the driving support systems
4
Driving
GS350_200t_GS F_OM_OM30E87E_(EE)
■Operational conditions
Availability of the pedestrian detection function and pre-crash braking function depend
on the region in which the vehicle was sold.
Read the following for details:
XRegion A
(The pedestrian detection function and pre-crash braking function are available)
The pre-crash safety system is enabled and th e system determines that the possibility of a
frontal collision with a vehicle or pedestrian is high.
Each function is operational at the following speeds:
●Pre-crash warning:
• Vehicle speed is between approximately 10 and 180 km/h (7 and 110 mph). (For detecting a pedestrian, vehicle speed is between approximately 10 and 80 km/h [7
and 50 mph].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is approximately 10 km/h (7 mph) or more.
●Pre-crash brake assist:
• Vehicle speed is between approximately 30 and 180 km/h (19 and 110 mph). (Fordetecting a pedestrian, vehicle speed is between approximately 30 and 80 km/h
[19 and 50 mph].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is approximately 30 km/h (19 mph) or more.
●Pre-crash braking:
• Vehicle speed is between approximately 10 and 180 km/h (7 and 110 mph). (For
detecting a pedestrian, vehicle speed is between approximately 10 and 80 km/h [7
and 50 mph].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is
approximately 10 km/h (7 mph) or more.
The system may not operate in the following situations:
●If a battery terminal has been disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time
●If the shift lever is in R
●If VSC is disabled (only the pre-crash warning function will be operational)
●If the PCS warning light is flashing or illuminated
RegionsFunction availability
Region AThe pedestrian detection function and pre-crash braking func-
tion are available
Region BThe pedestrian detection function is not available and the pre-
crash braking function is available
Region CThe pedestrian detection function and pre-crash braking func-
tion are not available

2984-5. Using the driving support systems
GS350_200t_GS F_OM_OM30E87E_(EE)
XRegion B
(The pedestrian detection function is not available and the pre-crash braking function
is available)
The pre-crash safety system is enabled and th e system determines that the possibility of a
frontal collision with a vehicle is high.
Each function is operational at the following speeds:
●Pre-crash warning:
• Vehicle speed is between approximately 15 and 180 km/h (10 and 110 mph).
• The relative speed between your vehicle and the vehicle ahead is approximately
10 km/h (7 mph) or more.
●Pre-crash brake assist:
• Vehicle speed is between approximately 30 and 180 km/h (19 and 110 mph).
• The relative speed between your vehicle and the vehicle ahead is approximately30 km/h (19 mph) or more.
●Pre-crash braking:
• Vehicle speed is between approximately 15 and 180 km/h (10 and 110 mph).
• The relative speed between your vehicle and the vehicle ahead is approximately10 km/h (7 mph) or more.
The system may not operate in the following situations:
●If a battery terminal has been disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time
●If the shift lever is in R
●If VSC is disabled (only the pre-crash warning function will be operational)
●If the PCS warning light is flashing or illuminated
XRegion C
(The pedestrian detection function and pre-crash braking function are not available)
The pre-crash safety system is enabled and th e system determines that the possibility of a
frontal collision with a vehicle is high.
Each function is operational at the following speeds:
●Pre-crash warning:
• Vehicle speed is between approximately 15 and 180 km/h (10 and 110 mph).
• The relative speed between your vehicle and the vehicle ahead is approximately 10 km/h (7 mph) or more.
●Pre-crash brake assist:
• Vehicle speed is between approximately 30 and 180 km/h (19 and 110 mph).
• The relative speed between your vehicle and the vehicle ahead is approximately30 km/h (19 mph) or more.
The system may not operate in the following situations:
●If a battery terminal has been disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time
●If the shift lever is in R
●If VSC is disabled (only the pre-crash warning function will be operational)
●If the PCS warning light is flashing or illuminated

3824-6. Driving tips
GS350_200t_GS F_OM_OM30E87E_(EE)
Winter driving tips
●Use fluids that are appropriate to the prevailing outside temperatures. •Engine oil
• Engine coolant
•Washer fluid
●Have a service technician inspect the condition of the battery.
●Have the vehicle fitted with four snow tires or purchase a set of tire chains for
the rear tires.
*
Ensure that all tires are the specified size and brand, and that chains match the size of
the tires.
*: Tire chains cannot be mounted on vehicles with front and rear tires of differing sizes
●Use fluids that are appropriate to the prevailing outside temperatures.
•Engine oil
• Engine coolant
•Washer fluid
●Have a service technician inspect the condition of the battery.
●Have the vehicle fitted with four snow tires.
Ensure that all tires are the specified size and brand.
Carry out the necessary preparations and inspections before driving the vehi-
cle in winter. Always drive the vehicle in a manner appropriate to the prevail-
ing weather conditions.
Preparation for winter (GS350/GS200t)
Preparation for winter (GS F)

4055-2. Using the air conditioning system and defogger
5
Interior features
GS350_200t_GS F_OM_OM30E87E_(EE)
WA R N I N G
■To prevent the windshield from fogging up
●Do not use during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outside air and that of the windshield can cause
the outer surface of the windshield to fog up, blocking your vision.
■To prevent burns
Do not touch the rear view mirror surfaces when the outside rear view mirror defog-
gers are on.
■nanoe generator (if equipped)
Do not disassemble or repair the generator because it contains high voltage parts.
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the generator needs repair.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the engine is
stopped.
■To prevent damage to the nanoe  (if equipped)
Do not insert anything into the driver’s side vent, attach anything to it, or use sprays
around the driver’s side vent. These things may cause the generator not to work prop-
erly.
●Do not place anything on the instrument
panel which may cover the air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.

4085-2. Using the air conditioning system and defogger
GS350_200t_GS F_OM_OM30E87E_(EE)
■Adjusting the position of and op ening and closing the air outlets
Direct air flow to the left or right,
up or down.
Turn the knob to open or close
the vent.
■Button lock function
■Rear control panel illumination off function
1
2
To prevent inadvertent operation, the buttons on
the rear armrest can be locked. Press
until you hear a beep to lock the buttons. Press-
ing again until you hear a beep will
release the lock.
The indicator appears on the display when the
buttons are locked.
Control panel illumination on the rear armrest
can be turned off. Press until you hear a
beep to turn the illumination off. Pressing
again until you hear a beep will turn the illumina-
tion on.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the engine is
off.

409
5
5-2. Using the air conditioning system and defogger
Interior features
GS350_200t_GS F_OM_OM30E87E_(EE)
Heated steering wheel∗/seat heaters∗/seat ventilators∗
∗: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat ventilators maintain good airflow by blow-
ing air from the seats.
WA R N I N G
●Care should be taken to prevent injury if
anyone in the following categories comes in
contact with the steering wheel and seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically challenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold
remedies, etc.)
●Observe the following precautions to prevent minor burns or overheating:
• Do not cover the seat with a blanket or cushion when using the seat heater.
• Do not use seat heater more than necessary.
NOTICE
●To prevent damage to the seat heaters/seat ventilators, do not put heavy objects that
have an uneven surface on the seat and do not stick sharp objects (needles, nails, etc.)
into the seat.
●To prevent battery discharge, do not use the functions when the engine is not running.

4165-3. Using the interior lights
GS350_200t_GS F_OM_OM30E87E_(EE)
●Illuminated entry system: The lights automatically turn on/off according to engine
switch mode, the presence of the electronic key, whether the doors are locked/
unlocked, and whether the doors are opened/closed.
●If the interior lights remain on when the engine switch is turned off, the lights will go off
automatically after 20 minutes.
●Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: →P. 6 2 8 )
NOTICE
To prevent battery discharge, do not leave the lights on longer than necessary when the
engine is not running.

4265-5. Using the other interior features
GS350_200t_GS F_OM_OM30E87E_(EE)
Other interior features
To set the visor in the forward posi-
tion, flip it down.
To set the visor in the side position,
flip down, unhook, and swing it to the
side.
To use the side extender, place the
visor in the side position, then slide it
backward.
Slide the cover to open.
The light turns on when the cover is
opened.
Sun visors
1
2
3
Vanity mirrors
NOTICE
To prevent battery discharge, do not leave the vanity lights on for extended periods
while the engine is off.