differential Lexus GS300 2019 Owner's Manual

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GS350_300_OM_OM30G96U_(U)
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3-4. Adjusting the steering wheel and mirrors
Steering wheel .............................. 174
Inside rear view mirror ..............175
Outside rear view mirrors ....... 177
3-5. Opening, closing the windows and moon roof
Power windows ............................. 181
Moon roof ...................................... 184
4-1. Before driving Driving the vehicle ..................... 188
Cargo and luggage .................... 197
Vehicle load limits .....................200
Trailer towing ............................... 201
Dinghy towing ............................. 202
4-2. Driving procedures Engine (ign ition) switch ........... 203
Automatic transmission ..........208
Turn signal lever ...........................216
Parking brake ................................ 217
Brake Hold .....................................219
ASC (Active Sound Control) (GS F) ............................................ 221
4-3. Operating the lights and wipers
Headlight switch ........................ 222
Automatic High Beam............. 225
Windshield wipers and washer ................................ 229 4-4. Refueling
Opening the fuel tank cap ..... 234
4-5. Using the driving support systems
Lexus Safety System + ............. 239
PCS (Pre-Collision System) ....................................... 245
LKA (Lane-Keeping Assist) .......................................... 256
Dynamic radar cr uise control
with full-speed range............. 266
Cruise control ............................. 278
Driving mode select switch ............................................ 281
BSM (Blind Spot Monitor) ............. 286
• The Blind Spot Monitor
function .................................... 289
• The Rear Cross Traffic Alert function...........................291
TVD (Torque Vectoring Differential) (GS F) ................ 294
Driving assist systems .............. 296
4-6. Driving tips Winter driving tips..................... 304
4Driving

GS350_300_OM_OM30G96U_(U)
892. Instrument cluster
2
Instrument cluster
GS350/GS300 (F SPORT models)
GS F
●TVD (Torque Vectoring Differential) control mode indicators (GS F)
Eco drive mode indicator
( P. 281) “SPORT S” indicator
(
 P. 281)
“SPORT S+” indicator
(  P. 281) “CUSTOMIZE” indicator
(
 P. 281)
Snow mode indicator
(  P. 209)
“NORMAL” indicator
( P. 284) Eco drive mode indicator
(
 P. 284)
“SPORT S” indicator
(  P. 284) “SPORT S+” indicator
(
 P. 284)
“CUSTOMIZE” indicator
(  P. 284) Snow mode indicator
(
 P. 209)
“EXPERT” indicator
( P. 300)
“STANDARD” indicator
( P. 294) “SLALOM” indicator
(
 P. 294)
“TRACK” indicator
(  P. 294)

187
GS350_300_OM_OM30G96U_(U)
4Driving
4-1. Before drivingDriving the vehicle ......................188
Cargo and luggage .................... 197
Vehicle load limits ..................... 200
Trailer towing ................................ 201
Dinghy towing .............................202
4-2. Driving procedures Engine (ignition) switch .......... 203
Automatic transmission.......... 208
Turn signal lever........................... 216
Parking brake ............................... 217
Brake Hold..................................... 219
ASC (Active Sound Control) (GS F) ........................................... 221
4-3. Operating the lights and wipers
Headlight switch ......................... 222
Automatic High Beam .............225
Windshield wipers and washer.................................229 4-4. Refueling
Opening the fuel tank cap ..... 234
4-5. Using the driving support systems
Lexus Safety System + ............. 239
PCS (Pre-Collision System)........................................ 245
LKA (Lane-Keeping Assist) .......................................... 256
Dynamic radar cruise control with full-speed range ............. 266
Cruise control ............................. 278
Driving mode select switch ............................................ 281
BSM (Blind Spot Moni tor).............. 286
• The Blind Spot Monitor function ....................................289
• The Rear Cross Traffic
Alert function .......................... 291
TVD (Torque Vectoring Differential) (GS F) ................ 294
Driving assist systems .............. 296
4-6. Driving tips Winter driving tips .....................304

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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.

294
GS350_300_OM_OM30G96U_(U)4-5. Using the driving support systems
TVD (Torque Vectoring Differential) (GS F)
With the engine switch in IGNITION
ON mode, pressing the TVD switch
changes the TVD control mode.
The current TVD control mode will be
displayed on the meters.
STANDARD mode
This is the default mode and provides
an optimum balance of driving agility
and stability.
SLALOM mode
This mode emphasizes enhanced
steering response.
TRACK mode
This mode emphasiz
es stability for
high speed sporty driving.
The multi-information display shows the di stribution of driving force between the
right and left rear wheels. ( P. 119)
The TVD system distributes driving force (torque) between the right an\
d left
rear wheels automatically. This syst em contributes to enhanced steering
response while cornering and increased traction when exiting a corner, pro-
viding an agile driving experience.
Changing TVD control modes
1
2
3
TVD control status on the multi-information display

GS350_300_OM_OM30G96U_(U)
2954-5. Using the driving support systems
4
Driving
■Automatic cancelation of the selected TVD control mode
SLALOM and TRACK mode are canceled when the engine switch is turned off. When
the engine switch is turned to IGNITION ON mode, the TVD system will be in STAN-
DARD mode.
■Automatic disabling of the TVD system
If a malfunction is detected in the TVD system, a warn ing message will be displayed on
the multi-information display ( P. 444) and the TVD system will be disabled automati-
cally. If the system is disabled, driving force will not be distributed by the TVD but through
normal differential operation.
■To protect the system
If the TVD fluid temperature becomes excessively high due to driving for a long time
under extremely high load conditions, a warn ing message will be displayed on the multi-
information display. ( P. 444)
WARNING
■Cautions regarding the use of the system
The driver is solely responsible for safe driv ing. Do not overly rely on the TVD system.
Always drive safely, taking care to observe your surroundings.

4617-2. Steps to take in an emergency
GS350_300_OM_OM30G96U_(U)
7
When trouble arises
Indicates that the parking brake is set automatically while
the brake hold system is holding the brakes A buzzer also sounds.
 Release the parking brake.
(AWD models only)
Indicates the AWD sy stem has overheated
A buzzer also sounds.
 Reduce the vehicle speed or stop the vehicle in a
safe place.
(AWD models only)
Indicates the AWD sy stem has overheated
A buzzer also sounds.
 Reduce the vehicle speed or stop the vehicle in a
safe place.
(GS F only)
Indicates a malfunction in the TVD (Torque Vectoring
Differential) system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions
(Flashes)
(Flashes)

4627-2. Steps to take in an emergency
GS350_300_OM_OM30G96U_(U)
(GS F only)
Indicates that the TVD (Torque Vectoring Differential)
system has overheatedThis message may be disp layed when driving under
extremely high load conditions such as the following:
• Continuously driving at high speeds or through
sharp turns
• If either right or left rear tire loses traction and spins
continuously
A buzzer also sounds.
 Drive the vehicle for a while, while avoiding
extremely high load conditions.
Indicates a malfunction in th e Drive-Start Control system
A buzzer also sounds.
 Have the vehicle inspecte d by your Lexus dealer
immediately.
Indicates a malfunction in the brake override system A buzzer also sounds.
 Have the vehicle inspecte d by your Lexus dealer
immediately.
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

GS350_300_OM_OM30G96U_(U)
5318-1. Specifications
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Vehicle specifications
GS350/GS300
GS F
*1: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory.Use Lexus approved “Toyota Genuine Differen tial Gear Oil” or an equivalent oil of
matching quality to satisfy the above specification. Please contact your Lexus dealer
for further details.
*2: Torque transfer modules are located on the ri ght and left sides of the rear differential
unit.
*3: Using torque transfer module fluid other than “Toyota Genuine ATF WS” may cause deterioration of performance, vibration, or ultimately damage the TVD system of your
vehicle.
*: Minimum pedal clearance when depressed wi th a force of 112.4 lbf (500 N, 51.0 kgf)
while the engine is running.
Rear differential
Oil capacity1.43 qt. (1.35 L, 1.19 Imp.qt.)
Oil type and viscosity
Vehicles without LSD (Limited Slip Differential):
Toyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
*1
Vehicles with LSD (Limited Slip Differential):
Toyota Genuine Differential gear oil LX 75W-85 GL-5
or equivalent
*1
DifferentialTorque transfer module*2
Oil capacity 1.43 qt. (1.35 L, 1.19 Imp. qt.)
Left-hand side:
0.74 qt. (0.70 L, 0.62 Imp. qt.)
Right-hand side:
0.74 qt. (0.70 L, 0.62 Imp. qt.)
Oil type and
viscosity Toyota Genuine Differential gear
oil LT
75W-85 GL-5 or equivalent
*1Toyota Genuine ATF WS*3
Brakes
Pedal clearance*GS350/GS3004.0 in. (102 mm) Min.
GS F4.4 in. (112 mm) Min.
Pedal free play0.04 — 0.24 in. (1.0 — 6.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3