2021 LEXUS IS300 open hood

3TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
Automatic transmission..............138
Turn signal lever............................. 142
Parking brake ................................. 143
Brake Hold....................................... 146
ASC (Active Sound Control) .. 147
4-3. Operating the lights and wipers Headlight switch ............................ 149
AHB (Automatic High Beam) ............................................................. 151
Windshield wipers and washer ............................................................ 154
4-4. Refueling Opening the fuel tank cap.......... 161
4-5. Using the driving support systems Lexus Safety System + 2.5 ........ 164
PCS (Pre-Collision System)..... 170
LTA (Lane Tracing Assist)......... 180
RSA (Road Sign Assist) .............. 189
Dynamic radar crui se control with
full-speed range.......................... 192
BSM (Blind Spot Monitor) ....... 202
PKSA (Parking Support Alert) ........................................................... 208
Intuitive parking assist ................. 210
RCTA (Rear Cross Traffic Alert) function ........................................... 216
PKSB (Parking Support Brake) ............................................................ 221
Parking Support Brake function (static objects) ............................ 226
Parking Support Brake function (rear-crossing vehicles).......... 232
Driving mode select switch...... 236
Driving assist systems ................. 238
4-6. Driving tips Winter driving tips ....................... 2435-1. Remote Touch/Display
Remote Touch............................... 248
Center Display.............................. 250
5-2. Using the air conditioning system and defogger
Automatic air conditioning system.......................................................... 253
Heated steering wheel/seat heat- ers/seat ventilators..................... 261
5-3. Using the interior lights Interior lights list ........................... 263
5-4. Using the storage features List of storage features .............. 266
Trunk features ............................... 268
5-5. Using the other interior features Other interior features .............. 270
Garage door opener ................. 273
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior................................... 280
Cleaning and protecting the vehi- cle interior .................................... 283
6-2. Maintenance Maintenance re quirements .....286
General maintenance................ 287
Emission inspection and mainte- nance (I/M) program s

............290
6-3. Do-it-yourself maintenance Do-it-yourself service precautions............................................................ 291
Hood ................................................. 293
5Interior features
6Maintenance and care

12Pictorial index
Precautions for winter season ..................................................................................... P.243
To prevent freezing (windshield wiper de-icer)
*................................................. P.259
Precautions for car wash ................................................................................................ P.281
Fuel filler door ........................................................................................................... P.16 1
Refueling method ............................................................................................................... .P.161
Fuel type/fuel tank capacity ...... ................................................................................... P.374
Tires.......................................................................................................................... .P.303
Tire size/inflation pressure ............................................................................... P.303, 379
Winter tires/tire chains .................................................................................................. P.243
Checking/rotation/tire pressure warning system..............................................P.303
Coping with flat tires........................................................................................................ P .349
Hood ..........................................................................................................................P.293
Opening ........................................................................................................................ ....... P.293
Engine oil ..................................................................................................................... ......... P.374
Coping with overheating ............................................................................................... P.365
Warning messages .......................................................................................................... P.346
Headlights ................................................................................................................. P.14 9
Turn signal lights ...................................................................................................... P.142
Parking lights/daytime running lights............................................................... P.149
Side marker lights ................................................................................................... P.149
Tail lights .................................................................................................................... P.149
Stop lights
Tail lights .................................................................................................................... P.149
Back-up lights
Shifting the shift lever to R .............................................................................................. P.13 9
License plate lights ................................................................................................. P.149
*:If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.321, Watts: P.381)
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14Pictorial index
Parking brake switch ............................................................................................. P.143
Applying/releasing ........................................................................................................... P.143
Precautions for winter season .. ................................................................................... P.244
Warning buzzer/messages.......................................................................................... P.346
Turn signal lever ...................................................................................................... P.142
Headlight switch...................................................................................................... P.149
Headlights/parking lights/tail lights/daytime running lights ........................... P.149
Windshield wiper and washer switch ................................................................ P.154
Usage...................................................................................................................................... P.154
Adding washer fluid .........................................................................................................P.3 02
Warning messages .......................................................................................................... P.346
Emergency flasher switch .................................................................................. P.328
Trunk opener .............................................................................................................. P.97
Hood lock release lever .......................................................................................P.293
Tilt and telescopic steering control switch
*1.................................................... P.113
Adjustment ..................................................................................................................... ........ P.113
Driving position memory
*1............................................................................................. P.108
Tilt and telescopic steeri ng lock release lever
*1............................................. P.113
Adjustment ..................................................................................................................... ........ P.113
Air conditioning system ...................................................................................... P.253
Usage..................................................................................................................................... P.253
Rear window defogger................................................................................................... P.253
Audio system
*2
Trunk opener main switch ..................................................................................... P.98
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
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411-2. Child safety
1
For safety and security
1-2.Child safety
Points to remember: P.41
Child restraint system: P.42
When using a child restraint system:
P.43
Child restraint system installation
method
• Fixed with a seat belt: P.45
• Fixed with a child restraint LATCH anchor: P.49
• Using an anchor bracket (for top tether strap): P.51
The laws of all 50 states of the U.S.A.
as well as Canada now require the use
of child restraint systems.
 Prioritize and observe the warn-
ings, as well as the laws and regula-
Riding with children
Observe the following precautions
when children are in the vehicle.
Use a child restraint system appro-
priate for the child , until the child
becomes large enough to properly
wear the vehicle’s seat belt.
 It is recommended that children
sit in the rear seats to avoid acci-
dental contact with the shift lever,
wiper switch etc.
 Use the rear door child-protector
lock or the window lock switch to
avoid children opening the door
while driving or operating the
power window accidentally.
( P.94, 119)
 Do not let small children operate
equipment which may catch or
pinch body parts, such as the
power window, hood, trunk, seats
etc.
WARNING
■When children are in the vehicle
Never leave children unattended in the
vehicle, and never allow children to have
or use the key.
Children may be able to start the vehicle
or shift the vehicle into neutral. There is
also a danger that children may injure
themselves by playing with the windows,
the moon roof (if eq uipped) or other fea-
tures of the vehicle. In addition, heat
build-up or extremely cold temperatures
inside the vehicle can be fatal to children.
Child restraint systems
Before installing a child restraint
system in the vehicle, there are pre-
cautions that need to be observed,
different types of child restraint sys-
tems, as well as installation meth-
ods, etc., written in this manual.
Use a child restraint system when
riding with a small child that cannot
properly use a seat belt. For the
child’s safety, install the child restraint
system to a rear seat. Be sure to fol-
low the installation method that is in
the operation manual enclosed with
the restraint system.
Table of contents
Points to remember

621-4. Theft deterrent system
■Items to check before locking the
vehicle
To prevent unexpected triggering of
the alarm and vehicle theft, make sure
of the following:
 Nobody is in the vehicle.
 The windows and moon roof (if
equipped) are closed before the
alarm is set.
 No valuables or other personal
items are left in the vehicle.
■Setting
Close the doors, trunk and hood, and
lock all the doors. The system will be
set automatically after 30 seconds.
The indicator light changes from being on
to flashing when the system is set.
■Deactivating or stopping
Do one of the following to deactivate
or stop the alarm:
 Unlock the doors.
 Open the trunk.
 Turn the engine switch to ACCES-
SORY or IGNITION ON mode, or
start the engine. (The alarm will be
deactivated or stopped after a few
seconds.)
■System maintenance
The vehicle has a maintenance-free type
alarm system.
■Triggering of the alarm
The alarm may be triggered in the following
situations:
(Stopping the alarm deactivates the alarm
system.)
●A person inside the vehicle opens a door
or the trunk or hood, or unlocks the vehi-
cle.
●The battery is recharged or replaced
when the vehicle is locked. ( P.363)
Alarm
The alarm uses light and sound to
give an alert when an intrusion is
detected.
The alarm is triggered in the follow-
ing situations when the alarm is set:
 A locked door or trunk is
unlocked or opened in any way
other than using the entry func-
tion, wireless remote control or
mechanical key. (The doors will
lock again automatically.)
 The hood is opened.
Setting/deactivating/stopping
the alarm system

943-2. Opening, closing and locking the doors and trunk
■Customization
Some functions can be customized.
(  P.394)
■Door lock switches
1 Locks all the doors
2 Unlocks all the doors
■Inside lock buttons
1 Locks the door
2 Unlocks the door
The front doors can be opened by pull-
ing the inside handle even if the lock
buttons are in the lock position.
■Locking the doors from the outside with-
out a key
1 Move the inside lock button to the lock
position.
2 Close the door.
The door cannot be locked if the engine
switch is in ACCESSORY or IGNITION
ON mode, or the electronic key is left
inside the vehicle. However, the key may not
be detected correctly and the door may be
locked.
■If a symbol indicating one or more of the
doors open is shown on the multi-infor-
mation display
The hood, one or more of the doors, or
trunk is not fully closed. If the vehicle
reaches a speed of 3 mph (5 km/h), a
buzzer sounds to indicate that the door(s)
are not fully closed. Make sure to close
hood, all doors and trunk.
The door cannot be opened from
inside the vehicle when the lock is set.
WARNING
■To prevent an accident
Observe the following precautions while
driving the vehicle.
Failure to do so may result in a door
opening and an occupant being thrown
out of the vehicle, re sulting in death or
serious injury.
●Ensure that all doors are properly
closed and locked.
●Do not pull the inside handle of the
doors while driving.
Be especially careful with the front doors,
as the doors may be opened even if the
inside lock buttons are in locked position.
●Set the rear door ch ild-protector locks
when children are seated in the rear
seats.
Unlocking and locking the doors
from the inside
Rear door child-protector lock

1694-5. Using the driving support systems
4
Driving
●In the following situations, if the situation has changed (or the vehicle has been driven for
some time) and the normal operating conditions are detected, the message will disappear
and the system will become operational.
If the message does not disappear, contact your Lexus dealer.
• When the temperature around the radar sensor is outside of the operational range, such as when the vehicle is in the sun or in an extremely cold environment
• When the front camera cannot detect objects in front of the vehicle, such as when driving
in the dark, snow, or fog, or when brig ht lights are shining into the front camera
• Depending on the conditions in the vicinity of the vehicle, the radar may judge the sur-
rounding environment can not be properly recognized. In that case, “Pre-Collision Sys-
tem Unavailable See Owner’s Manual” is displayed.
The area in front of the front camera is
obstructed, such as when the hood is open
or a sticker is attached to the part of the
windshield in front of the front camera.
Close the hood, remove the sticker, etc. to
clear the obstruction.
When “Pre-Collision System Radar In Self
Calibration Unavailable See Owner’s Man-
ual” is displayed.Check whether there is attached materials
on the radar sensor and radar sensor cover,
and if there is, remove it.
SituationActions

2936-3. Do-it-yourself maintenance
6
Maintenance and care
Release the lock from the inside of the
vehicle to open the hood.
1Pull the hood lock release lever.
The hood will pop up slightly.
2Pull up the auxiliary catch lever and
lift the hood.
■If a symbol indicating the hood opens is
shown on the multi-information display
 P.94
■Front
2WD models
Hood
Opening the hood
WARNING
■Pre-driving check
Check that the hood is fully closed and
locked.
If the hood is not locked properly, it may
open while the vehicle is in motion and
cause an accident, which may result in
death or serious injury.
Positioning a floor jack
When using a floor jack, follow the
instructions in the manual provided
with the jack and perform the oper-
ation safely.
When raising your vehicle with a
floor jack, position the jack cor-
rectly. Improper placement may
damage your vehicle or cause
injury.
Location of the jack point