2014 Lexus GS250 battery

2414-2. Driving procedures
4
Driving
GS350_250_OM_OM30E16E_(EE)
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if
the engine is turned on and off repeatedly in a short period of time. In this case,
refrain from operating the engine. After about 10 seconds, the steering lock motor
will resume functioning.
■When “Check Entry & Start System” will be displayed on the multi-information dis-
play
The system may be malfunctioning. Have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional imme-
diately.
■If the electronic key battery is depleted
→P. 4 8 9
■Operation of the engine switch
●When operating the engine switch, one short, firm press is enough. If the switch is
pressed improperly, the engine may not start or the engine switch mode may not
change. It is not necessary to press and hold the switch.
●If attempting to restart the engine immediately after turning the engine switch off,
the engine may not start in some cases. After turning the engine switch off, please
wait a few seconds before restarting the engine.
■If the smart entry & start system has been deactivated in a customized setting
→P. 6 1 8
“Steering Lock active” will be displayed on
the multi-information display.
Check that the shift lever is set in P. Press the
engine switch while turning the steering
wheel left and right.
GS350_250_OM_OM30E16E_(EE).book Page 241 Tuesday, July 8, 201
4 7:11 PM

2434-2. Driving procedures
4
Driving
GS350_250_OM_OM30E16E_(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 qualified and equipped professional
immediately.
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2634-3. Operating the lights and wipers
4
Driving
GS350_250_OM_OM30E16E_(EE)
■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 sensitivity) can be changed.
(Customizable features: →P. 656)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.
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3544-6. Driving tips
GS350_250_OM_OM30E16E_(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.
Carry out the necessary preparations and inspections before driving
the vehicle in winter. Always drive the vehicle in a manner appropriate
to the prevailing weather conditions.
Preparation for winter
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3905-2. Using the air conditioning system and defogger
GS350_250_OM_OM30E16E_(EE)
CAUTION
■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.
■nanoe  generator
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.
■Humidity sensor
Follow these points to avoid damaging the sensor:
●Do not disassemble the sensor
●Do not spray the glass cleaner on the sensor or subject it to strong impacts
●Do not stick anything on the sensor
■To prevent damage to the nanoe 
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
properly.
GS350_250_OM_OM30E16E_(EE).book Page 390 Tuesday, July 8, 201 4 7:11 PM

3955-2. Using the air conditioning system and defogger
5
Interior features
GS350_250_OM_OM30E16E_(EE)
■Button lock function
■Rear control panel illumination off function To prevent inadvertent operation, the buttons
on the rear armrest can be locked. Press until you hear a beep to lock the but-
tons. Pressing 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
illumination on.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is off.
GS350_250_OM_OM30E16E_(EE).book Page 395 Tuesday, July 8, 201 4 7:11 PM

3965-2. Using the air conditioning system and defogger
GS350_250_OM_OM30E16E_(EE)
Rear window and outside rear view mirror
defoggers
On/off
The defoggers will automatically turn
off after 15 to 60 minutes. The opera-
tion time changes according to the
ambient temperature and vehicle
speed.
■Operating conditions
The engine switch must be in the IGNITION ON mode.
These features are used to defog th e rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the rear view mirror surfaces, as they can become very hot and burn
you.
NOTICE
■To prevent battery discharge
Turn the defoggers off when the engine is off.
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4015-3. Using the interior lights
5
Interior features
GS350_250_OM_OM30E16E_(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.
■To prevent battery discharge
If the interior lights remain on when the engine switch is turned off, the lights will go
off automatically after 20 minutes.
■Customization
Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: →P. 650)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.
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