transmission Lexus GS350 2020 Owner's Manual

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GS350_GS F_OM_OM30J07U_(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 .................................... 290
• The Rear Cross Traffic Alert function......................... 292
TVD (Torque Vectoring Differential) (GS F) ................ 295
Driving assist systems .............. 297
4-6. Driving tips Winter driving tips..................... 305
4Driving

GS350_GS F_OM_OM30J07U_(U)
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The vehicle is equipped with sophisticated computers that will record certain data, such
as:
• Engine speed/Electric motor speed (traction motor speed)
• Accelerator status
•Brake status
• Vehicle speed
• Operation status of th e driving assist systems
The recorded data varies accord ing to the vehicle grade level and options with which it is
equipped. These computers do not record conversations or sounds, and only record
images outside of the vehicle in certain situations.
●Data transmission
Your vehicle may transmit the data recorded in these computers to Lexus without noti-
fication to you.
●Data usage
Lexus may use the data recorded in this co mputer to diagnose malfunctions, conduct
research and development, and improve quality.
Lexus will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if the vehicle is leased
• In response to an official request by the police, a court of law or a government
agency
• For use by Lexus in a lawsuit
• For research purposes where the data is not tied to a specific vehicle or vehicle
owner
●To learn more about the vehicl e data collected, used and shar ed by Lexus, please visit
www.lexus.com/privacyvts/
.
If your Lexus has Lexus Enform and if you have subscribed to those services, please refer
to the Lexus Enform Telematics Subscription Service Agreement for information on data
collected and its usage.
To learn more about the vehicle data collected, used and shared by Lexus, please visit
www.lexus.com/privacyvts/
.
Vehicle data recording
Usage of data collected through Lexus Enform (U.S. mainland only)

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GS350_GS F_OM_OM30J07U_(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 ....................................290
• The Rear Cross Traffic
Alert function ......................... 292
TVD (Torque Vectoring Differential) (GS F) ................ 295
Driving assist systems .............. 297
4-6. Driving tips Winter driving tips .....................305

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GS350_GS F_OM_OM30J07U_(U)4-1. Before driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving on slippery road surfaces
●Sudden braking, acceleration and steering may cause tire slippage and reduce your
ability to control the vehicle.
●Sudden acceleration, engine braking due to shifting, or changes in engine speed
could cause the vehicle to skid, resulting in an accident.
●After driving through a puddle, lightly depress the brake pe dal to make sure that the
brakes are functioning properly. Wet brake pads may prevent the brakes from func-
tioning properly. If the brakes on only on e side are wet and not functioning properly,
steering control may be affected.
■When shifting the shift lever
●Do not let the vehicle roll backward while the shift lever is in a driving position, or roll
forward while the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering perfor-
mance, resulting in an accide nt or damage to the vehicle.
●Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to a driving position while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Moving the shift lever to N while the vehicle is moving will disengage the engine from
the transmission. Engine braking is not available when N is selected.
●Be careful not to shift the shift lever with the accelerator pedal depressed. Shifting the
shift lever to a gear other than P or N may lead to unexpected rapid acceleration of
the vehicle that may cause an accident and result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indicators) (GS350)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
Front brakes of F SPORT models: Moderate levels of brake pad and disc wear allow
enhanced front braking power. As a result, the discs may wear more quickly than con-
ventional brake discs. Therefore, when replacing the brake pads, Lexus recommends
that you also have the thic kness of the discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded.

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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.

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GS350_GS F_OM_OM30J07U_(U)4-2. Driving procedures
Automatic transmission
While the engine switch is in IGNITION ON mode, move the shift lever
with the brake pedal depressed.
When shifting the shift lever between P and D, make sure that the vehicle is com-
pletely stopped.
*1: To improve fuel efficiency and reduce noises
, set the shift lever in D for normal driving.
*2: Any gear range can be fixed when driving in M mode.
Shifting the shift lever
Shift position purpose
Shift positionObjective or function
PParking the vehicle/starting the engine
RReversing
NNeutral (Condition in which the power is not transmitted)
DNormal driving*1
MM mode driving*2 ( P. 211)

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GS350_GS F_OM_OM30J07U_(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: When automatic transmission fluid temperature is high.
●GS350: 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).

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2134-2. Driving procedures
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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. 442)
• 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.

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GS350_GS F_OM_OM30J07U_(U)4-5. Using the driving support systems
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Driving
Driving mode select switch
GS350 (vehicles without Adaptive
Variable Suspension system)
Normal mode
For normal driving.
Press the switch to change the driving mode to normal mode when selected to Eco
drive mode or sport mode.
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When not in Eco drive mode and the driving mode select switch is turned to the left,
the “ECO” indicator comes on in the multi-information display.
Sport mode
Assists acceleration response by cont rolling the transmission, engine and
steering. Suitable for when precise ha ndling is desirable, for example when
driving on mountain roads.
When not in sport mode and the driving mode select switch is turned to the right, the
“SPORT” indicator comes on in the multi-information display.
The driving modes can be selected to suit driving condition.
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GS350_GS F_OM_OM30J07U_(U)
2834-5. Using the driving support systems
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Driving
Sport mode•SPORT S mode
Assists acceleration response by co ntrolling the transmission and engine.
When not in SPORT S mode and the driving mode select switch is turned to the
right, the “SPORT S” indicator comes on in the multi-information display.
•SPORT S+ mode
Helps to ensure steering performanc e and driving stability by simultane-
ously controlling the steeri ng and suspension in addition to the transmis-
sion and engine. Suitable for sporty driving.
When in SPORT S mode and the driving mode select switch is turned to the right,
the “SPORT S+” indicator comes on in the multi-information display.
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