maintenance Lexus GS300 2019 User Guide

122
GS350_300_OM_OM30G96U_(U)2. Instrument cluster
The settings of the following items can be changed, refer to P. 549
For functions that can be enabled or disabled, the function switches between on and
off each time is pressed.
■(Lane-Keeping Assist) (if equipped)
( P. 256)
■(Pre-Collision System) (if equipped) ( P. 245)
■(Blind Spot Monitor) (if equipped) ( P. 286)
■( P. 101)
• Display of the indicator can be turned on or off.
• The speed at which the indicator is displayed can be set.
Selectable speed range:
30 mph to 100 mph (50 km/h to 160 km/h)
*
*
: Always observe the legal speed limi t when driving on public roads.
■
●
Scheduled Maintenance ( P. 368)
●TPMS (Tire pressure warning system) (if equipped) ( P. 397)
■
●
Language
Select to change the la nguage on the display.
●Units
Select to change the unit of measure.
●Eco Driving Indicator Light
Select to activate/deactivate the Eco Driving Indicator Light
● switch
Displays a procedure to register a desired screen to .
You can register 1 screen as a shortcut , which can be displayed by pressing .
●Drive information 1/2/3
Select to select up to 2 items that will be displayed on a Drive information screen,
up to 3 Drive informat ion screens can be set.
Settings display

359
GS350_300_OM_OM30G96U_(U)
6Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior ................360
Cleaning and protecting the vehicle interior.................. 364
6-2. Maintenance Maintenance requirements ... 367
General maintenance.............. 369
Emission inspection and maintenance (I/M)
programs .................................... 372
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 373
Hood ............................................... 375
Positioning a floor jack ............ 376
Engine compartment ............... 378
Tires .................................................395
Tire inflation pressure...............405
Wheels .......................................... 408
Air conditioning filter ................ 410
Electronic key battery ................412
Checking and replacing fuses ................................................414
Headlight aim (vehicles with single-beam headlights)........ 418
Light bulbs..................................... 420

360
GS350_300_OM_OM30G96U_(U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior
●Working from top to bott
om, liberally apply water to the vehicle body, wheel
wells and underside of the vehicl e to remove any dirt and dust.
●Wash the vehicle body using a sponge or soft cloth, such as a chamois.
●For hard-to-remove marks, use car wa sh soap and rinse thoroughly with
water.
●Wipe away any water.
●Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle body is cool.
■CFRP (Carbon Fiber Reinforced Plastic) part (GS F)
CFRP is used for the part s shown in the illustration.
■Self-restoring coat*
The vehicle body has a self-restoring coating that is resistant to small surface scratches
caused in a car wash etc.
●The coating lasts for 5 to 8 years from when the vehicle is delivered from the plant.
●The restoration time differs depending on the depth of the scratch and outside tem-
perature. The restoration ti me may become shorter when the coating is warmed by
applying warm water.
●Deep scratches caused by keys, coins, etc. cannot be restored.
●Do not use wax that contain abrasives.
*: CFRP parts (GS F) do not have a self-restoring coat.
Perform the following to protect the ve hicle and maintain it in prime condi-
tion:
●As the CFRP parts may change color if they
are exposed to ultraviolet rays for extended
periods of time, Lexus recommends that your
vehicle be stored in a place where it will not be
exposed to direct sunlight.
●Do not use wax that contains abrasives.
●CFRP parts may get scratched when using an
automatic car wash.

GS350_300_OM_OM30G96U_(U)
3616-1. Maintenance and care
6
Maintenance and care
■Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of the vehicle.
Make sure to extend the 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 washable 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 access system with push-button start
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 6 ft. (2 m) 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 sm art access system with
push-button start. ( P. 158)
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent.
●Wash detergent off with water immediately after use.
●To protect the paint from damage, make sure to observe the following precautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driving or park- ing in hot weather
■Brake
●Brake caliper coating (GS350/GS300 with orange brake calipers for F SPORT mod-
els, and GS F)
• When using detergent, use neutral detergent.
Do not use hard brushes or abrasive cleaners, as they will damage the coating.
• Do not use detergent on the brake calipers when they are hot.
• Wash detergent off immediately after use.
●GS F: Rust may form if the vehicle is parked with wet brake pads or disc rotors, causing
them to stick. Before parking the vehicle after it is washed, drive slowly and apply the
brakes several times to dry the parts.
■Bumpers
Do not scrub with abrasive cleaners.

362
GS350_300_OM_OM30G96U_(U)6-1. Maintenance and care
■Front side windows water-repellent coating (if equipped)
●The following precautions can extend the effectiveness of the water-repellent coating.
• Remove any dirt, etc. from the front side windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, damp cloth as soon as possible.
• Do not use wax or glass cleaners that contain abrasives when cleaning the windows.
• Do not use any metallic objects to remove condensation build up.
●When the water-repellent performance has become insufficient, the coating can be
repaired. Contact your Lexus dealer.
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may cause the
electrical components etc. to catch fire.
■When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●When the upper part of the windshield where the raindrop sensor is located is
touched by hand
●When a wet rag or similar is held close to the raindrop sensor
●If something bumps against the windshield
●If you directly touch the raindrop sensor bo dy or if something bumps into the raindrop
sensor
■Precautions regarding the exhaust pipes and rear bumper diffusers
Exhaust gases cause the exhaust pipes and rear bumper diffusers to become quite hot.
When washing the vehicle, be careful not to touch the pipes and rear bumper diffusers
until they have cooled sufficiently, as touc hing hot exhaust pipes and rear bumper dif-
fusers can cause burns.
■Precaution regarding the rear bumper with Blind Spot Monitor (if equipped)
If the paint of the rear bumper is chipped or scratched, the system may malfunction. If
this occurs, consult your Lexus dealer.
Turn off AUTO mode of the wiper to prevent
the wiper from operating. ( P. 229)
If AUTO mode is selected, the wipers may
operate unexpectedly in the following situa-
tions, and may result in hands being caught or
other serious injuries and cause damage to the
wiper blades.

GS350_300_OM_OM30G96U_(U)
3636-1. Maintenance and care
6
Maintenance and care
NOTICE
■Application of coatings to the vehicle body (GS F)
Do not apply any kind of coating to the vehicle body as doing so may damage the paint
or reduce its durability.
■To prevent paint deterioration and corrosion on the body and components (aluminum
wheels etc.)
●Wash the vehicle immediatel y in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar, pollen or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the paint surface
• After driving in an area contaminated wi th soot, oily smoke, mine dust, iron pow-
der or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoli ne are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
●To prevent the wheels from corroding, remove any dirt and store in a place with low
humidity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic subs tances or scrub with a hard brush.
This may damage the surfaces of the lights.
●Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
■When using an automatic car wash (vehicle s with rain-sensing windshield wipers)
Turn off AUTO mode of the wiper to prevent the wiper from operating. (P. 229)
If AUTO mode is selected, the wipers may operate and the wiper blades may be dam-
aged.
■When using a high-pressure car wash
●When washing the vehicle, do not let water from the high-pressure washer directly hit
the camera or the area around the camera. Due to the shock from high-pressure
water, it is possible that the device may not operate normally.
●Do not bring the nozzle tip close to boots (rubber or resin manufactured cover), con-
nectors or the following parts. The parts may be damaged if they come into contact
with high-pressure water.
• Traction related parts
• Suspension parts •Steering parts
• Brake parts
●GS F: Do not point the nozzle of a high pres-
sure washer at the areas shown in the illustra-
tion, as high pressure water may damage the
oil coolers.

364
GS350_300_OM_OM30G96U_(U)6-1. Maintenance and care
Cleaning and protecting the vehicle interior
●Remove dirt and dust using a vacuum cleaner. Wipe dirty surfaces with a cloth
dampened with lukewarm water.
●If dirt cannot be removed, wipe it off with a soft cloth dampened with neutral
detergent diluted to approximately 1%.
Wring out any excess water from the clot
h and thoroughly wipe off remaining
traces of detergent and water.
●Remove dirt using a soft cloth or synthetic chamois dampened in a baking
soda (sodium bicarbonate) solution.
Use a solution of approximately 9% baking soda dissolved in water.
●Wipe the surface with a dry, soft cl oth to remove any remaining moisture.
●Remove dirt and dust using a vacuum cleaner.
●Wipe off any excess dirt and dust with a soft cloth dampened with diluted
detergent.
Use a diluted water solution of appr oximately 5% neutral wool detergent.
●Wring out any excess water from the clot h and thoroughly wipe off all remain-
ing traces of detergent.
●Wipe the surface with a dry, soft cl oth to remove any remaining moisture.
Allow the leather to dry in a shaded and ventilated area.
●Remove dirt and dust using a vacuum cleaner.
●Wipe it off with a soft cloth dampened with neutral detergent diluted to
approximately 1%.
●Wring out any excess water from the clot h and thoroughly wipe off remaining
traces of detergent and water.
The following procedures will help prot ect your vehicle’s interior and keep it
in top condition:
Protecting the vehicle interior
Cleaning the areas with satin-finish metal accents
Cleaning the leather areas
Cleaning the synthetic leather areas

GS350_300_OM_OM30G96U_(U)
3656-1. Maintenance and care
6
Maintenance and care
●Brush the surfaces using a soft brush.
Do not brush hard as doing so may cause damage.
●Wipe the surfaces clean with a soft cloth that has been dampened in cold or
lukewarm water and squeezed out.
●Allow the artificial leather (Alcantara®*) to dry in a shaded and ventilated
area.
*: “Alcantara®” is a registered trademark of Alcantara S.p.A.
■Caring for leather areas
Lexus recommends cleaning the interior of the vehicle at least twice a year to maintain
the quality of the vehicle’s interior.
■Shampooing the carpets
There are several commercial foaming-type cl eaners available. Use a sponge or brush to
apply the foam. Rub in overlapp ing circles. Do not use water. Wipe dirty surfaces and let
them dry. Excellent results are obtained by keeping the carpet as dry as possible.
■Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge. Also check the belts
periodically for excessive wear, fraying or cuts.
■When cleaning the carpeted portions of the glove box, console box, etc.
If a strong adhesive tape is used, there is a possibility that the surface of the carpet could
be damaged.
Cleaning the artificial leather (Alcantara®*) areas
WARNING
■Water in the vehicle
●Do not splash or spill liquid in the vehicle.
Doing so may cause electrical components, etc. to malfunction or catch fire.
●Do not get any of the SRS components or wiring in the vehicle interior wet. (P. 43)
An electrical malfunction ma y cause the airbags to deploy or not function properly,
resulting in death or serious injury.
■Cleaning the interior (especially instrument panel)
Do not use polish wax or polish cleaner. Th e instrument panel may reflect off the wind-
shield, obstructing the driver’s view and leading to an accident, resulting in death or
serious injury.

366
GS350_300_OM_OM30G96U_(U)6-1. Maintenance and care
NOTICE
■Cleaning detergents
●Do not use the following types of detergent,
as they may discolor the vehicle interior
or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances su ch as benzene or gasoline, alkaline or
acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, su ch as thinner, benzene, and alcohol
●Do not use polish wax or polish cleaner. The instrument pane l’s or other interior part’s
painted surface may be damaged.
■Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces:
●Remove any dust or dirt from leather surfaces immediately.
●Do not expose the vehicle to direct sunlight for extended periods of time. Park the
vehicle in the shade, especially during summer.
●Do not place items made of vinyl, plastic, or containing wax on the upholstery, as they
may stick to the leather su rface if the vehicle interior heats up significantly.
■Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system ma y be damaged if water comes into contact
with electrical components such as the au dio system above or under the floor of the
vehicle. Water may also cause the body to rust.
■When cleaning the inside of the windshie ld (vehicles with Lexus Safety System +)
Do not allow glass cleaner to contact the lens. Also, do not touch the lens. ( P. 241)
■Cleaning the inside of the rear window
●Do not use glass cleaner to clean the rear window, as this may cause damage to the
rear window defogger heater wires or antenna. Use a cloth dampened with luke-
warm water to gently wipe the window clean. Wipe th e window in strokes running
parallel to the heater wires or antenna.
●Be careful not to scratch or damage the heater wires or antenna.

367
GS350_300_OM_OM30G96U_(U)6-2. Maintenance
6
Maintenance and care
Maintenance requirements
General maintenance should be performed
on a daily basis. This can be done by
yourself or by a Lexus dealer.
Scheduled maintenance should be perfor med at specified intervals according to
the maintenance schedule.
For details about maintenance items and sc hedules, refer to the “Warranty and Ser-
vice Guide”, “Owner’s Manual Supplement” or “Scheduled Maintenance”.
You can perform some maintena nce procedures by yourself.
Please be aware that do-it-yourself maintenance may affect warranty coverage.
The use of Lexus repair manuals is recommended.
For details about warranty co verage, refer to the separate “Owner’s Guide”, “War-
ranty and Service Guide”, “Owner’s Manu al Supplement” or “Warranty Booklet”.
■Repair and replacement
It is recommended that genuine Lexus parts be used for repairs to ensure performance
of each system. If non-Lexus parts are used in replacement or if a repair shop other than
a Lexus dealer performs repairs, confirm the warranty coverage.
To ensure safe and economical driving, day-to-day care and regular mainte-
nance are essential. It is the owner’s re sponsibility to perform regular checks.
Lexus recommends the following maintenance:
General maintenance
Scheduled maintenance
Do-it-yourself maintenance