2020 Lexus GS F check oil

15Pictorial index
GS350_GS F_OM_OM30J07U_(U)
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 143
Locking/unlocking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 143
Opening/closing the door glasses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 181
Locking/unlocking by using the me chanical key . . . . . . . . . . . . . . . . . . . . . . . P. 502
Warning lights/warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 437, 444
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 229
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 305
To prevent freezing (windshield wiper de-icer)*. . . . . . . . . . . . . . . . . . . . . . . P. 324
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 365
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 234
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 234
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 519
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 394
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 525
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 30 5
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . P. 394
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 473, 484
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 378
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 378
Engine compartment cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 383
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 519
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 509
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 444
Headlights/front side marker lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 222
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 222
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
1
2
3
4
5
Light bulbs of the exte rior lights for driving
(Replacing method: P. 419, Watts: P. 528)
*: If equipped
6
7
8

GS350_GS F_OM_OM30J07U_(U)
1052. Instrument cluster
2
Instrument cluster
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator of the tachometer enter the red zone, as it represents the
engine speed range which exceeds the maximum safe engine speed.
●In the following situations, th e engine may be overheating. In this case, immediately
stop the vehicle in a safe place, and check the engine after it has cooled completely.
(  P. 509)
• The engine coolant temperature gauge indicator ( ) is in the red zone and flash- ing.
• The engine oil temperature gauge indicator ( ) is in the red zone and flashing.

196
GS350_GS F_OM_OM30J07U_(U)4-1. Before driving
NOTICE
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations
. Hold the steering wheel
firmly and gradually depress the brake pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds or vibrations.
●The vehicle will lean abnormally.
Information on what to do in case of a flat tire ( P. 473, 484)
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to have
your Lexus dealer check the following:
●Brake function
●Changes in quantity and quality of oil and fluid used for the engine, transmission,
transfer (AWD models), differential, etc.
●Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible), and the function of all joints, bearings, etc.

GS350_GS F_OM_OM30J07U_(U)
3636-1. 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
●As water may enter the cabin, do not bring the nozzle tip near the gaps around the
doors or perimeter of the windows, or spray these areas continuously.
●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 (vehicles without matte black painted 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
■Aluminum wheels (vehicles with matte black painted wheels)
As matte black painted wheels require differ ent cleaning methods than conventional alu-
minum wheels, be sure to observer the follo wing. For details, consult your Lexus dealer.
●Remove dirt using water. If the wheels are excessively dirty, use a sponge or soft cloth
dampened with a diluted neutral detergent to remove the dirt.
●When using detergent, make sure to rinse it off with water immediately. Then use a soft
cloth to wipe off the water.
●To prevent the matte black paint from being damaged, make sure to observe the follow-
ing precautions:
• Do not scrub or polish the wheels using a brush or dry cloth.
• Do not use any wheel coatings or abrasive detergents.
• When using an automatic car wash, disable/ do not select the wheel brush function
(if such an option is available).
• Do not use a high pressure washer or steam cleaner.
• Do not use detergent on the wheels when they are hot, such as after driving or park- ing in hot weather.

372
GS350_GS F_OM_OM30J07U_(U)6-2. Maintenance
General maintenance
Listed below are the general maintenanc
e items that should be performed at
the intervals specified in the “Warranty and Service Guide” or “Owner’s
Manual Supplement”. It is recommende d that any problem you notice should
be brought to the attention of your Lexu s dealer or qualified service shop for
advice.
Engine compartment
ItemsCheck points
BatteryCheck the battery fluid level and connections.
(  P. 391)
Brake fluidIs the brake fluid at the correct level? ( P. 390)
Engine coolantIs the engine coolant at the correct level?
( P. 388)
Engine oilIs the engine oil at the correct level? ( P. 385)
Exhaust systemThere should not be any fumes or strange sounds.
Radiator/condenserThe radiator and condenser should be free from for-
eign objects. ( P. 389)
Washer fluidIs there sufficient washer fluid? ( P. 393)

GS350_GS F_OM_OM30J07U_(U)
3856-3. Do-it-yourself maintenance
6
Maintenance and care
With the engine at operating temperature and turned off, check the oil level on
the dipstick.
■Checking the engine oil
Park the vehicle on level ground. Afte r warming up the engine and turning
it off, wait more than 5 minutes for the oil to drain back into the bottom of
the engine.
Holding a rag under the end, pull the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check the oil level.
Low
Normal
Excessive
The shape of the dipstick may differ depending on the type of vehicle or engine.
Wipe the dipstick and reinsert it fully.
Engine oil
1
2
GS350GS F
3
4
5
1
2
3
Flat dipstickNon-flat dipstick
6

386
GS350_GS F_OM_OM30J07U_(U)6-3. Do-it-yourself maintenance
■Adding engine oil
If the oil level is below or near the lo
w level mark, add engine oil of the same
type as that already in the engine.
Make sure to check the oil type and prepare the items needed before adding
oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
■Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following situations,
oil consumption may increase, and engine oil may need to be refilled in between oil
maintenance intervals.
●When the engine is new, for example directly after purchasing the vehicle or after
replacing the engine
●If low quality oil or oil of an inappropriate viscosity is used
●When driving at high engine speeds or with a heavy load, or when driving while accel-
erating or decelerating frequently
●When leaving the engine idling for a long time, or when driving frequently through
heavy traffic
GS350GS F
Engine oil selection P. 519, 521
Oil quantity (Low  Full) 1.6 qt. (1.5 L, 1.3 Imp.qt.)
Items Clean funnel
1
2
3

GS350_GS F_OM_OM30J07U_(U)
3876-3. Do-it-yourself maintenance
6
Maintenance and care
■After changing the engine oil (GS350)
The engine oil maintenance data should be reset. Perform the following procedures:
Press or of the meter control switch and select .
Press or of the meter control switch an d select “Vehicle Settings”. Then press
.
Press or of the meter control switch and select “Oil Maintenance”. Then press
.
Select “Yes” and press .
A message is displayed on the multi-informa-
tion display.
WARNING
■Used engine oil
●Used engine oil contains potentially harm ful contaminants which may cause skin dis-
orders such as inflammation and skin cance r, so care should be taken to avoid pro-
longed and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water.
●Dispose of used oil and filters only in a sa fe and acceptable manner. Do not dispose of
used oil and filters in household trash, in sewers or onto the ground.
Call your Lexus dealer, service station or auto parts store for information concerning
recycling or disposal.
●Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly tightened.
1
2
3
4
5