2021 LEXUS IS300 towing

2TABLE OF CONTENTS
For your information ......................................5
Reading this manual ....................................... 9
How to search ............................................... 10
Pictorial index .................................................. 11
1-1. For safe use Before driving .................................... 22
For safe driving.................................. 23
Seat belts ............................................. 24
SRS airbags ....................................... 28
Front passenger occupant classifi- cation system ................................. 36
Exhaust gas precautions .............. 40
1-2. Child safety Riding with children.......................... 41
Child restraint systems ................... 41
1-3. Lexus Enform Lexus Enform Safety Connect .. 54
1-4. Theft deterrent system Engine immobilizer system ......... 60
Alarm..................................................... 62
Theft prevention labels ................. 63
2-1. Instrument cluster Warning lights and indicators .... 66
Gauges and meters ......................... 71
Multi-information display............. 76
Fuel consumption information ... 833-1. Key information
Keys ...................................................... 88
3-2. Opening, closing and locking the doors and trunk
Doors .................................................... 92
Trunk ..................................................... 96
Smart access system with push-but- ton start ............................................. 99
3-3. Adjusting the seats Front seats........................................ 106
Rear seats......................................... 107
Driving position memory ........... 108
Head restraints ................................. 111
3-4. Adjusting the steering wheel and mirrors
Steering wheel ................................. 113
Inside rear view mirror ................. 114
Outside rear view mirrors........... 116
3-5. Opening, closing the windows and moon roof
Power windows .............................. 118
Moon roof ........................................ 120
4-1. Before driving Driving the vehicle......................... 124
Cargo and luggage...................... 130
Vehicle load limits.......................... 132
Trailer towing................................... 132
Dinghy towing ................................ 133
4-2. Driving procedures Engine (ignitio n) switch ............... 134
1For safety and security
2Vehicle status information and
indicators
3Before driving
4Driving

13Pictorial index
■Instrument panel
Engine switch ........................................................................................................... P.134
Starting the engine/changing the modes ................................................................ P.134
Emergency stop of the engine ........................ ............................................................P.328
When the engine will not start ..................................................................................... P.357
Warning messages .......................................................................................................... P.346
Shift lever...................................................................................................................P .138
Changing the shift position ............................................................................................ P.139
Precautions for towing .................................................................................................... P.331
When the shift lever does not move .......................................................................... P.139
Meters ......................................................................................................................... .. P.71
Reading the meters/adjusting the instrument panel light..................................... P.71
Warning lights/indicator lights ...................................................................................... P.66
When a warning light comes on ................................................................................. P.337
Multi-information display ....................................................................................... P.76
Display ........................................................................................................................ .............. P.76
When a warning message is displayed.................................................................... P.346A
B
C
D

481-2. Child safety
Booster type
High back type
4 Sit the child in the child restraint
system. Fit the seat belt to the child
restraint system according to the
manufacturer’s in structions and
insert the plate into the buckle.
Make sure that the belt is not
twisted.
Check that the shoulder belt is correctly
positioned over the child’s shoulder and
that the lap belt is as low as possible.
(  P.24)
■Removing a child restraint system
installed with a seat belt
Press the buckle release button and
fully retract the seat belt.
When releasing the buckle, the child
restraint system may sp ring up due to the
rebound of the seat cushion. Release the
buckle while holding down the child
restraint system.
Since the seat belt auto matically reels itself,
slowly return it to the stowing position.
WARNING
■When installing a child restraint sys-
tem
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●Do not allow children to play with the
seat belt. If the seat belt becomes
twisted around a child’s neck, it may
lead to choking or other serious inju-
ries that could result in death.
If this occurs and the buckle cannot be
unfastened, scissors should be used to
cut the belt.
●Ensure that the belt and plate are
securely locked and the seat belt is not
twisted.
●Shake the child rest raint system left
and right, and forward and backward
to ensure that it has been securely
installed.

581-3. Lexus Enform
location.
■Stolen Vehicle Location
If your vehicle is stolen, Safety Connect
can work with local authorities to assist
them in locating and recovering the
vehicle. After filing a police report, call
the Safety Connect response center at
1-800-25-LEXUS
(1-800-255-3987) in the United
States, 1-877-539-8777 in Puerto
Rico or 1-800-265- 3987 in Canada,
and follow the prompts for Safety Con-
nect to initiate this service.
In addition to assisting law enforce-
ment with recovery of a stolen vehicle,
Safety-Connect-equipped vehicle
location data may, under certain cir-
cumstances, be shared with third par-
ties to locate your vehicle. Further
information is available at Lexus.com.
■Emergency Assistance Button
(“SOS”)
In the event of an emergency on the
road, push the “SOS” button to reach
the Safety Connect response center.
The answering agent will determine
your vehicle’s location, assess the
emergency, and dispatch the neces-
sary assistance required.
If you accidentally press the “SOS” button,
tell the response-center agent that you are
not experiencing an emergency.
■Enhanced Roadside Assistance
Enhanced Roadside Assistance adds
GPS data to the already included war-
ranty-based Lexus roadside service.
Subscribers can press the “SOS” but-
ton to reach a Safety Connect response-center agent, who can help
with a wide range of needs, such as:
towing, flat tire, fuel delivery, etc. For a
description of the Roadside Assistance
services and their limitations, please
see the Safety Connect Terms and
Conditions, which are available at
Lexus.com.
Important! Read this information about
exposure to radio frequency signals
before using Safety Connect;
The Safety Connect system installed in
your vehicle is a low-power radio trans-
mitter and receiver. It receives and also
sends out radio frequency (RF) signals.
In August 1996, the Federal Commu-
nications Commission (FCC) adopted
RF exposure guidelines with safety lev-
els for mobile wireless phones. Those
guidelines are consistent with the
safety standards previously set by the
following U.S. and international stan-
dards bodies.

ANSI (American National Stan-
dards Institute) C95.1 [1992]
 NCRP (National Council on Radia-
tion Protection and Measurement)
Report 86 [1986]
 ICNIRP (International Commission
on Non-Ionizing Radiation Protec-
tion) [1996]
Those standards were based on com-
prehensive and periodic evaluations of
the relevant scientific literature. Over
Safety information for Safety
Connect

123
4
4
Driving
Driving
.4-1. Before drivingDriving the vehicle ..................... 124
Cargo and luggage ................... 130
Vehicle load limits ...................... 132
Trailer towing ............................... 132
Dinghy towing ............................. 133
4-2. Driving procedures Engine (ignition) switch ........... 134
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 sys- tems
Lexus Safety System + 2.5 ..... 164
PCS (Pre-Collision System) ......................................................... 170
LTA (Lane Tracing Assist)...... 180
RSA (Road Sign Assist) ........... 189Dynamic radar cruise 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 .................... 243

1304-1. Before driving
Cargo capacity depends on the total
weight of the occupants.
(Cargo capacity) = (Total load capac-
ity) — (Total weight of occupants)
Steps for Determining Correct Load
Limit —
(1) Locate the statement “The com-
bined weight of occupants and cargo
should never exceed XXX kg or XXX
lbs.” on your vehicle’s placard.
(2) Determine the combined weight of
the driver and passengers that will be
riding in your vehicle.
(3) Subtract the combined weight of
the driver and passengers from XXX
kg or XXX lbs.
(4) The resulting figure equals the
available amount of cargo and luggage
load capacity.
For example, if the “XXX” amount
equals 1400 lbs. and there will be five
150 lb passengers in your vehicle, the
amount of available cargo and luggage
load capacity is 650 lbs. (1400 − 750
(5  150) = 650 lbs.)
(5) Determine the combined weight of
luggage and cargo being loaded on
the vehicle. That weight may not safely
exceed the available cargo and lug- gage load capacity calculated in Step
4.
(6) If your vehicle will be towing a
trailer, load from your trailer will be
transferred to your vehicle. Consult
this manual to determine how this
reduces the available cargo and lug-
gage load capacity of your vehicle.
(
P.132)
Lexus does not recommend towing a
trailer with your vehicle. Your vehicle is not
designed for trailer towing.
Cargo capacity
Total load capacity (vehicle capac-
ity weight) ( P.372)
When 2 people with the combined
weight of A lb. (kg) are riding in your
vehicle, which has a total load capacity
(vehicle capacity weight) of B lb. (kg),
the available amount of cargo and lug-
gage load capacity will be C lb. (kg) as
follows:
B
*2 lb. (kg) - A*1 lb. (kg) = C*3 lb. (kg)
*1: A =Weight of people
*2: B =Total load capacity
Cargo and luggage
Take notice of the following infor-
mation about storage precautions,
cargo capacity and load:
Capacity and distribution
Calculation formula for your
vehicle
A
B

1324-1. Before driving
■Total load capacity and seating capacity
These details are also described on the tire
and loading information label. ( P.312)
Vehicle load limits
Vehicle load limits include total
load capacity, seating capacity,
towing capacity and cargo capac-
ity.
 Total load capacity (vehicle
capacity weight):  P.372
Total load capacity means the com-
bined weight of occupants, cargo
and luggage.
 Seating capacity: P.372
Seating capacity means the maxi-
mum number of occupants whose
estimated average weight is 150 lb.
(68 kg) per person.
 Towing capacity
Lexus does not recommend towing
a trailer with your vehicle.
 Cargo capacity
Cargo capacity may increase or
decrease depending on the weight
and the number of occupants.
WARNING
■Overloading the vehicle
Do not overload the vehicle.
It may not only cause damage to the tires,
but also degrade steering and braking
ability, resulting in an accident.
Trailer towing
Lexus does not recommend towing
a trailer with your vehicle. Lexus
also does not recommend the
installation of a tow hitch or the use
of a tow hitch carrier for a wheel-
chair, scooter, bicycle, etc. Your
vehicle is not desi gned for trailer
towing or for the use of tow hitch
mounted carriers.

1334-1. Before driving
4
Driving
Dinghy towing
Your vehicle is not designed to be
dinghy towed (with 4 wheels on the
ground) behind a motor home.
NOTICE
■To avoid serious damage to your vehi-
cle
Do not tow your vehicle with the four
wheels on the ground.