transmission fluid Lexus GS300 2019 Owner's Manual

196
GS350_300_OM_OM30G96U_(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. 475, 486)
■When encountering flooded roads
Do not drive on a road that has flooded af ter 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.

212
GS350_300_OM_OM30G96U_(U)4-2. Driving procedures
When in the M position, the gear will no
t change unless the shift lever or paddle
shift switches are operated.
However, even when in the M position, the gears will be automatically changed in
the following situation:
●When vehicle speed drops (downshift only).
●When the automatic transmission fluid or engine coolant temperature is low.
●GS350/GS300: When automatic transm ission fluid temperature is high.
●GS350/GS300: When the needle of the tachometer is in the red zone (the
range which exceeds the allowable revs of the engine).
In the following situations, the gear will no t shift even if the shift lever or paddle
shift switches are operated.
●“Slippery Road. Cannot Shift to Lower Ge ar.” is displayed on the multi-infor-
mation display.
●The vehicle speed is low (upshift only).

GS350_300_OM_OM30G96U_(U)
2134-2. Driving procedures
4
Driving
■Automatic deactivation of shift range selection in the D position
Shift range selection in the D position will be deactivated in the following situations:
●When the vehicle comes to a stop
●If the accelerator pedal is depressed fo r more than a certain period of time
●When the shift lever is shifted to other than D
■To protect automatic transmission
When the temperature of the transmission fluid becomes high, protection control is per-
formed temporarily. When “Transmission Fl uid Temp High See Owner’s Manual” is dis-
played on the multi-information display, have the vehicle inspected by your Lexus dealer.
■Downshifting restrictions warning buzzer
To help ensure safety and driving performance, downshifti ng operation may sometimes
be restricted. In some circum stances, downshifting may not be possible even when the
shift lever or paddle shif t switch is operated. (A buzzer will sound twice.)
■Snow mode automatic deactivation
Snow mode is automatically deactivated if the engine switch is turn ed off after driving in
snow mode.
■When driving with cruise control or dynamic radar cruise control with full-speed range
activated
Even when performing the following actions with the intent of enabling engine braking,
engine braking will not activate because crui se control or dynamic radar cruise control
with full-speed range will not be canceled.
●6-speed models: While driving in the D position, downshifting to 5 or 4.
( P. 266, 278)
8-speed models: While driving in the D posi tion, downshifting to 7, 6, 5 or 4.
(  P. 266, 278)
●When switching the driving mode to spor t mode while driving in D position. (P. 281)
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is performed, the engine output may be
restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D includes M) with the accelerator pedal depressed, a warning message appears on
the multi-information display. ( P. 444)
• When the accelerator pedal is depressed t oo much while the vehicle is in reverse.
■Shift lock system
The shift lock system is a system to prevent ac cidental operation of the shift lever in start-
ing.
The shift lever can be shifted from P only when the engine switch is in IGNITION ON
mode and the brake pedal is being depressed.

437
GS350_300_OM_OM30G96U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspecte d by your Lexus dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer) •Low brake fluid
• Malfunction in the brake booster system
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer. Continuing to drive the vehicle may be dangerous.
(If equipped)
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system
 Have the vehicle inspected by your Lexus dealer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
 Have the vehicle inspected by your Lexus dealer immediately.
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system
 Have the vehicle inspected by your Lexus dealer immediately.

4567-2. Steps to take in an emergency
GS350_300_OM_OM30G96U_(U)
(If equipped)
Indicates a malfunction in the BSM (Blind Spot Monitor)
systemA buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Indicates abnormal engine oil pressure
A buzzer also sounds.
 Immediately stop the vehicle in a safe place and
contact your Lexus dealer.
Indicates that the automatic transmission fluid tempera-
ture is too high
A buzzer also sounds.
 Immediately stop the vehicle in a safe place and
contact your Lexus dealer.
Warning messageDetails/Actions

530
GS350_300_OM_OM30G96U_(U)8-1. Specifications
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact your Lexus dealer.
Electrical system
Battery
Open voltage at 68 F (20 C):12.3 V or higher
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)
Charging rates5 A
Automatic transmission
Fluid capacity*
GS350 (2WD)10.0 qt. (9.5 L, 8.4 Imp.qt.)
GS350 (AWD)10.6 qt. (10.0 L, 8.8 Imp.qt.)
GS3009.2 qt. (8.7 L, 7.7 Imp.qt.)
GS F11.8 qt. (11.2 L, 9.9 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration
in shift quality, locking up of your transm ission accompanied by vibration, and ulti-
mately damage the transmission of your vehicle.
Front differential (AWD models)
Oil capacity0.74 qt. (0.70 L, 0.62 Imp.qt.)
Oil type and viscosityToyota Genuine Differential gear oil GL-5 or equivalent
Above 0 F (-18 C): SAE90
Below 0 F (-18 C): SAE80W or SAE80W-90

585Alphabetical index
GS350_300_OM_OM30G96U_(U)
Approach warning............................... 273
Armrest .................................................... 346
Armrest door ......................................... 349
ASC (Active Sound Control) ........... 221
Ashtrays.................................................... 345
Assist grips ..............................................350
Audio input
*
Audio system*
Automatic headlight leveling system .................................................... 224
Automatic light control system....... 222
Automatic transmission .....................208 If the shift lever cannot be shifted from P .....................................214
M mode ..................................................... 211
Paddle shift switches ......................... 210
AUX port
*
Auxiliary boxes ........................................341
AVS (Adaptive Variable Suspension system).......................... 297
Back-up lights Replacing light bulbs ........................ 422
Battery....................................................... 392
Battery checking................................... 392 If the vehicle battery is discharged ........................................ 507
Preparing and checking before winter ................................................... 304
Warning light ....................................... 437 Blind Spot Monitor (BSM) ............... 286
Blind Spot Monitor function.........289
Rear Cross Traffic Alert function.................................................. 291
Bluetooth
®*
Brake Fluid ............................................................391
Parking brake ........................................ 217
Warning light ........................... 437, 439
Warning message............................. 444
Brake assist ..............................................296
Brake Hold................................................ 219
Break-in tips .............................................189
Brightness control Instrument panel light control.......................................... 95, 103
BSM (Blind Spot Monitor) ............... 286 Blind Spot Monitor function.........289
Rear Cross Traffic Alert function.................................................. 291
Card key ....................................................138
Care................................................360, 364 Aluminum wheels ................................361
Exterior ...................................................360
Interior ..................................................... 364
Seat belts................................................365
Cargo capacity ..................................... 200
Cargo hooks ...........................................342
CD player
*
Chains ....................................................... 306
BC
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

589Alphabetical index
GS350_300_OM_OM30G96U_(U)
Engine oil maintenance data ........... 368
Engine switch ......................................... 203Auto power off function................. 205
Changing the engine switch modes ..................................................204
If your vehicle has to be stopped in an emergency .......... 427
Starting the engine ........................... 203
EPS (Electric Power Steering) ....... 297 Function .................................................. 297
Warning light ...................................... 438
Warning message ............................. 444
Event data recorder (EDR) ...................10
Expert mode ...........................................300
First-aid kit storage net ...................... 342
Flat tire Vehicles with spare tire ..................475
Vehicles without spare tire .......... 486
Floor mats ................................................... 32
Fluid Automatic transmission ................. 530
Brake ......................................................... 531
Washer ...................................................394
Footwell light .......................................... 335
Front passenger occupant classification system ............................ 52
Front personal lights............................ 336 Front seats ................................................. 164
Adjustment..............................................164
Cleaning................................................. 364
Correct driving posture .................... 34
Driving position memory.................166
Head restraints ....................................... 171
Power easy access system .............166
Seat heaters ............................................ 331
Seat position memory .......................166
Seat ventilators...................................... 331
Front side marker lights......................222 Light switch............................................222
Replacing light bulbs ....................... 422
Welcome light illumination control.................................................... 144
Front turn signal lights .......................... 216 Replacing light bulbs ............. 421, 422
Turn signal lever ................................... 216
Wattage .................................................535
Fuel Capacity................................................. 525
Fuel gauge .................................... 93, 100
Fuel pump shut off system ............ 436
Information............................................536
Type.......................................................... 525
Warning light ....................................... 439
Warning messages .......................... 444
Fuel consumption Average fuel consumption............................. 108, 115
Average fuel consumption after refueling ........................... 108, 115
Current fuel consumption..... 108, 115
F