brake Lexus IS350 2020 Owner's Manual / LEXUS 2020 IS300,IS350 OWNER'S MANUAL (OM53F29U)

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IS350 AWD/IS350/IS300 AWD/IS300_U
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3-5. Opening, closing the windows and moon roof
Power windows ............................162
Moon roof .......................................166
4-1. Before driving Driving the vehicle ...................... 172
Cargo and luggage ................... 180
Vehicle load limits ...................... 183
Trailer towing ............................... 184
Dinghy towing .............................. 185
4-2. Driving procedures Engine (ign ition) switch ............ 186
Automatic transmission ............. 191
Turn signal lever .......................... 198
Parking brake ..............................200
ASC (Active Sound Control) ........ 201
4-3. Operating the lights and wipers
Headlight switch ........................ 202
Automatic High Beam............. 206
Windshield wipers and washer .......................................... 210 4-4. Refueling
Opening the fuel tank cap ................................................. 218
4-5. Using the driving support systems
Lexus Safety System + ............. 222
PCS (Pre-Collision System) ......... 229
LDA (Lane Departure Alert with steering
control)........................................ 240
Dynamic radar cruise control ......................................... 248
Intuitive parking assist.............. 260
Lexus parking assist monitor........................................ 269
BSM (Blind Spot Monitor) ............. 285
• BSM function......................... 289
• RCTA function...................... 292
Driving mode select switch ........................................... 297
Driving assist systems ............... 301
4-6. Driving tips Winter driving tips..................... 306
4Driving

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IS350 AWD/IS350/IS300 AWD/IS300_UPlease note that this manual applies to all
models and explains all equipment, including
options. Therefore, you may find some expl anations for equipment not installed on your
vehicle.
All specifications provided in this manual are current at the time of printing. However,
because of the Lexus policy of continual pr oduct improvement, we reserve the right to
make changes at any time without notice.
Depending on specifications, th e vehicle shown in the illustrations may differ from your
vehicle in terms of color and equipment.
Approximately five hours after the engine is turned off, you may hear sound coming from
under the vehicle for several minutes. This is the sound of a fuel evaporation leakage
check and, it does not indicate a malfunction.
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are cur-
rently available in the market. You should kn ow that Toyota does not warrant these prod-
ucts and is not responsible fo r their performance, repair, or replacement, or for any
damage they may cause to, or adverse effect they may have on, your Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification with
non-genuine Lexus products could affect its performance, safety or durability, and may
even violate governmental regulations. In addition, damage or performance problems
resulting from the modification may not be covered under warranty.
The installation of a mobile two-way radio system in your vehicle could affect electronic
systems such as:
●Multiport fuel injection system/seque ntial multiport fuel injection system
●Lexus Safety System +
●Anti-lock brake system
●Vehicle dynamics integrated management
●SRS airbag system
●Seat belt pretensioner system
Be sure to check with your Lexus dealer for precautionary measures or special instruc-
tions regarding installation of a mobile two-way radio system.
For your information
Main Owner’s Manual
Noise from under vehicle after turning off the engine
Accessories, spare parts and modification of your Lexus
Installation of a mobile two-way radio system

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IS350 AWD/IS350/IS300 AWD/IS300_UThe vehicle is equipped with sophisticated co
mputers 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
• Images from the cameras
Your vehicle is equipped with cameras. Contact your Lexus dealer for the location
of recording cameras.
The recorded data varies according to the ve hicle 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
●Recorded image information can be erased by your Lexus dealer.
The image recording function can be disabled . However, if the function is disabled,
data from when the system operates will not be available.
●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 Subs cription Service Agreement for information
on data collected and its usage.
To learn more about th e 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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IS350 AWD/IS350/IS300 AWD/IS300_UThis vehicle is equipped with an event data recorder (EDR). The main purpose of an EDR
is to record, in certain crash or near crash-
like situations, such as an air bag deployment
or hitting a road obstacle, data that will a ssist in understanding how a vehicle’s systems
performed. The EDR is designed to record data related to vehicle dynamics and safety
systems for a short period of ti me, typically 30 seconds or less.
The EDR in this vehicle is desi gned to record such data as:
• How various systems in your vehicle were operating;
• Whether or not the driver and passenge r safety belts were buckled/fastened;
• How far (if at all) the driver was depressi ng the accelerator and/or brake pedal; and,
• How fast the vehicle was traveling.
These data can help provide a better understanding of the circumstances in which
crashes and injuries occur.
NOTE: EDR data are recorded by your vehicle only if a non-trivial crash situation occurs;
no data are recorded by the EDR under norm al driving conditions and no personal data
(e.g., name, gender, age, and crash location) are recorded. However, other parties, such
as law enforcement, could combine the EDR data with the type of personally identifying
data routinely acquired during a crash investigation.
To read data recorded by an EDR, special equipment is required, and access to the vehi-
cle or the EDR is needed. In addition to the vehicle manufacturer, other parties, such as
law enforcement, that have the special equipm ent, can read the information if they have
access to the vehicle or the EDR.
●Disclosure of the EDR data
Lexus will not disclose the data recorded in an EDR to a third party except when:
• An agreement from the vehicle’s owner (or the lessee for a leased vehicle) is obtained
• In response to an official request by the police, a court of law or a government
agency
• For use by Lexus in a lawsuit
However, if necessary, Lexus may:
• Use the data for research on vehicle safety performance
• Disclose the data to a third party for rese arch purposes without disclosing informa-
tion about the specific vehicle or vehicle owner
Event data recorder

17Pictorial index
IS350 AWD/IS350/IS300 AWD/IS300_U
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 94
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 94
When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 532
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 20 0
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 2 00
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 307
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 532
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Headlights/parking lights/tail lights/daytime running lights . . . . . . . . . . . . P. 202
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 48 4
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 548
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 514
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 130
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 470
Tilt and telescopic steering control switch
*1 . . . . . . . . . . . . . . . . . . . . . . . P. 155
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 155
Driving position memory*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 147
Tilt and telescopic steering lock release lever*1 . . . . . . . . . . . . . . . . . . . P. 155
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 155
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 422
Audio system*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 312
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 312
Hands-free system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 371
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 131
*1: If equipped
*2: For vehicles with a navigation system, refer to “NAVIGATION SYSTEM OWNER’S
MANUAL”.
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852. Instrument cluster
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Instrument cluster
IS350 AWD/IS350/IS300 AWD/IS300_U
Warning lights inform the driver of malfunctions in the indicated vehicle systems.
Warning lights
*1
(U.S.A.)
Brake system warning light
( P. 525)*1Electric power steering sys-
tem warning light
( P. 526)
*1
(Canada)
Brake system warning light
( P. 525) LDA (Lane Departure
Alert) indicator (
P. 526)
*1
(if equipped)
Charging system warning
light ( P. 525)*1PCS warning light
( P. 526)
*1
(U.S.A.)
Malfunction indicator lamp
( P. 525)*1
Slip indicator ( P. 526)
*1
(Canada)
Malfunction indicator lamp
( P. 525)*1, 2
(if equipped)
“AFS OFF” indicator
( P. 527)
*1SRS warning light
( P. 525)Open door warning light
( P. 527)
*1
(U.S.A.)
ABS warning light
( P. 525)Low fuel level warning light
( P. 527)
*1
(Canada)
ABS warning light
( P. 525)Driver’s and front passen-
ger’s seat belt reminder light
( P. 527)
(U.S.A.)
Parking brake warning light
( P. 526)*3Rear passengers’ seat
belt reminder lights
( P. 527)
(Canada)
Parking brake warning light
( P. 526)*1Master warning light
( P. 527)

1463-3. Adjusting the seats
IS350 AWD/IS350/IS300 AWD/IS300_U
WARNING
Observe the following precautions. Failure to do so may result in death or serious injury.
■When folding the rear seatbacks down
●Do not fold the seatbacks down while driving.
●Stop the vehicle on level ground, set the parking brake and shift the shift lever to P.
●Do not allow anyone to sit on a folded seatback or in the trunk while driving.
●Do not allow children to enter the trunk.
■After returning the rear seatback to the upright position
●Check that the seat belts are not twisted or caught in the seatback.
●Make sure that the seatback is securely
locked in position by lightly pushing it back
and forth.
If the seatback is not securely locked, the red
marking will be visible on the seatback lock
release knob. Make sure that the red marking
is not visible.

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Driving4
IS350 AWD/IS350/IS300 AWD/IS300_U
4-1. Before drivingDriving the vehicle ...................... 172
Cargo and luggage ....................180
Vehicle load limits ....................... 183
Trailer towing ................................ 184
Dinghy towing ..............................185
4-2. Driving procedures Engine (ignition) switch ............ 186
Automatic transm ission..............191
Turn signal lever........................... 198
Parking brake ............................. 200
ASC (Active Sound Control)......... 201
4-3. Operating the lights and wipers
Headlight switch .........................202
Automatic High Beam ............ 206
Windshield wipers and washer........................................... 210 4-4. Refueling
Opening the fuel tank cap ...... 218
4-5. Using the driving support systems
Lexus Safety System + ............. 222
PCS (Pre-Collision System) ......... 229
LDA (Lane Departure Alert with steering
control)........................................ 240
Dynamic radar cruise control ......................................... 248
Intuitive parking assist .............. 260
Lexus parking assist monitor ........................................ 269
BSM (Blind Spot Monitor) .....285
• BSM function .........................289
• RCTA function...................... 292
Driving mode select switch ........................................... 297
Driving assist systems ............... 301
4-6. Driving tips Winter driving tips .....................306

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IS350 AWD/IS350/IS300 AWD/IS300_U4-1. Before driving

P. 186
With the brake pedal depressed, shift the shift lever to D. ( P. 191)
Release the parking brake. ( P. 200)
Gradually release the brake pedal and gently depress the accelerator pedal
to accelerate the vehicle.
With the shift lever in D, depress the brake pedal.
If necessary, set the parking brake.
If the vehicle is to be stopped for an extended period of time, shift the shift lever to P or
N. ( P. 191)
With the shift lever in D, depress the brake pedal.
Set the parking brake ( P. 200), and shift the shift lever to P ( P. 191).
If parking on a hill, bloc k the wheels as needed.
Press the engine switch to stop the engine.
Lock the door, making sure that you ha ve the electronic key on your person.
Make sure that the parking brake is set and shift the shift lever to D.
Gently depress the accelerator pedal.
Release the parking brake.
Driving the vehicle
The following procedures should be observed to ensure safe driving:
Starting the engine
Driving
Stopping
Parking the vehicle
Starting off on a steep uphill
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1734-1. Before driving
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U
■When starting off on an uphill
The hill-start assist control will activate. (P. 301)
■Driving in the rain
●Drive carefully when it is ra ining, because visibility will be reduced, the windows may
become fogged-up, and the road will be slippery.
●Drive carefully when it starts to rain, beca use the road surface will be especially slip-
pery.
●Refrain from high speeds when driving on an expressway in the rain, because there may
be a layer of water between the tires and th e road surface, preventing the steering and
brakes from operating properly.
■Engine speed while driving
In the following conditions, th e engine speed may become high while driving. This is due
to automatic up-shifting control or down-shi fting implementation to meet driving condi-
tions. It does not indica te sudden acceleration.
●The vehicle is judged to be driving uphill or downhill
●When the accelerator pedal is released
●When the brake pedal is depressed while sport mode is selected
■Restraining the engine output (Brake Override System)
●When the accelerator and brake pedals are depressed at the same time, the engine
output may be restrained.
●A warning message is displayed on the mult i-information display while the system is
operating. ( P. 547)
■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. 537)
• When the accelerator pedal is depressed t oo much while the vehicle is in reverse.
●While Drive-Start Control is being activated, your vehicle may have trouble escaping
from the mud or fresh snow. In such case, deactivate TRAC (P. 303) to cancel Drive-
Start Control so that the vehicle may beco me able to escape from the mud or fresh
snow.