Battery Lexus GS350 2017 Owner's Guide

4105-2. Using the air conditio ning system and defogger
GS350_200t_GS F_OM_OM30F83E_(EE)
■Adjusting the position of and opening 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.

4185-3. Using the interior lights
GS350_200t_GS F_OM_OM30F83E_(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. 634)
NOTICE
To prevent battery discharge, do not leave the lights on longer than necessary when the
engine is not running.

4285-5. Using the other interior features
GS350_200t_GS F_OM_OM30F83E_(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.

4305-5. Using the other interior features
GS350_200t_GS F_OM_OM30F83E_(EE)
Please use as a power supply for electronic goods that use less than 12 V DC /
10 A (power consumption of 120 W).
The power outlets can be used when engine switch is in ACCESSORY or IGNITION
ON mode.
Fold down the armrest for use.
Power outlets
FrontRear
Open the lid.
NOTICE
●To avoid damaging the power outlets, close the power outlet lids when the power out-
lets are not in use.
Foreign objects or liquids that enter th e power outlets may cause a short circuit.
●To prevent battery discharge, do not use the power outlets longer than necessary
when the engine is off.
Armrest
NOTICE
To prevent damage to the armrest, do not apply too much load on the armrest.

4365-5. Using the other interior features
GS350_200t_GS F_OM_OM30F83E_(EE)
■Emergency Assistance Button (“SOS”)
In the event of an emergency, push the “SOS” button to reach the Public
Safety Answering Point (PSAP). The answering agent will determine your
vehicle’s location, assess the emergency, and dispatch the necessary assis-
tance required.
If you accidentally press the “SOS” button, tell the agent that you are not experi-
encing an emergency.
When the engine switch is turned to IGNITION ON mode, the red indicator
light will illuminate for 10 seconds and then the green indicator light will illum i-
nate for 2 seconds, indicating that the system is enabled. The indicator lights indi-
cate the following: ● If the green indicator light illuminates and stays on, the system is enabled.
● If the green indicator light flashes, an emergency call is being made (either
automatically or manually).
● If no indicator lights illuminate, the system is not enabled.
● If the red indicator light illuminates any time other than immediately after the
engine switch is turned to IGNITION ON mode, the system may be malfunc-
tioning or the backup battery may be depleted. Contact any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
The service life of the backup battery is 3 years or more.
Indicator lights

439
6Maintenance and care
GS350_200t_GS F_OM_OM30F83E_(EE)
6-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 440
Cleaning and protecting the vehicle interior.................. 444
6-2. Maintenance Maintenance requirements ............................ 447
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 449
Hood ................................................ 451
Positioning a floor jack ............ 452
Engine compartment ............... 454
Tires ...................................................471
Tire inflation pressure ..............485
Wheels ........................................... 487
Air conditioning filter ...............489
Electronic key battery............... 491
Checking and replacing fuses.............................................. 493
Light bulbs.....................................498

441
6-1. Maintenance and care
6
Maintenance and care
GS350_200t_GS F_OM_OM30F83E_(EE)
■Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of the vehicle.
Make sure to extend th e mirrors before driving.
●Brushes used in automatic car washes may scratch the vehicle surface and harm your
vehicle’s paint.
●Rear spoiler (if equipped) may not be wash able in some automatic car washes. There
may also be an increased risk of damage to vehicle.
■High-pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the windows.
●Before using the car wash, check that the fuel filler door on your vehicle is closed prop- erly.
■Notes for a smart entry & start system
If the door handle becomes wet while the electronic key is within the effective range, the
door may lock and unlock repeatedly. In that case, follow the following correction proce-
dures to wash the vehicle:
●Place the key in a position 2 m (6 ft.) or more separate from the vehicle while the vehi-
cle is being washed. (Take care to ensure that the key is not stolen.)
●Set the electronic key to battery-saving mode to disable the smart entry & start system. (  P. 175)
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent. Do not use hard brushes or
abrasive cleaners. Do not use strong or harsh chemical cleaners.
Use the same mild detergent and wax as used on the paint.
●Do not use detergent on the wheels when they are hot, for example after driving for
long distance in the hot weather.
●Wash detergent from the wheels immediately after use.
■Brake caliper coating (GS200t with orange brake calipers for F SPORT models, and
GS F)
●When using detergent, use neutral detergent.
Do not use hard brushes or abrasive clea ners, as they will damage the coating.
●Do not use detergent on the brake calipers when they are hot.
●Wash detergent off immediately after use.
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent coating
●The following precautions can extend the effectiveness of the water-repellent coating.

4486-2. Maintenance
GS350_200t_GS F_OM_OM30F83E_(EE)
■Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs that indicate
service is needed. Some important clues are:
●Engine missing, stumbling or pinging
●Appreciable loss of power
●Strange engine noises
●A fluid leak under the vehicle (However, water dripping from the air conditioning sys-
tem after use is normal.)
●Change in exhaust sound (This may indicate a dangerous carbon monoxide leak. Drive
with the windows open and have the exhaust system checked immediately.)
●Flat-looking tires, excessive tire sque al when cornering, uneven tire wear
●Vehicle pulls to one side when driven straight on a level road
●Strange noises related to suspension movement
●Loss of brake effectiveness, spongy feeling brake pedal, pedal almost touches the floor,
vehicle pulls to one side when braking
●Engine coolant temperature continually higher than normal ( P. 109, 115)
If you notice any of these clues, take your vehicle to any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer as soon as possible. Your vehicle may
need adjustment or repair.
WARNING
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and possible
death or serious injury.
■Handling of the battery
Battery posts, terminals and related accessories contain lead and lead compounds
which are known to cause brain damage. Wash your hands after handling. ( P. 466)

449
6
6-3. Do-it-yourself maintenance
Maintenance and care
GS350_200t_GS F_OM_OM30F83E_(EE)
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections.
ItemsParts and tools
Battery condition ( P. 466)

4506-3. Do-it-yourself maintenance
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
The engine compartment contains many mech anisms and fluids that may move suddenly,
become hot, or become electrically energize d. To avoid death or serious injury, observe
the following precautions.
■When working on the engine compartment
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driving
as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the b attery. Fuel or
the battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and corro-
sive sulfuric acid.
●Take care because brake fluid can harm your hands or eyes and damage painted sur-
faces. If fluid gets on your hands or in your eyes, flush t he affected area with clean
water immediately. If you still experience discomfort, consult a doctor.
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant temperature is high.(  P. 466)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in
your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt
in the air.
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or when
the fluid level in the accumulator is high.
If the reservoir needs frequent refillin g, it may indicate a serious problem.