2021 LEXUS RX350 equipped

1654-1. Before driving
4
Driving
Control can also help to stabilize the vehicle
and trailer.)
●After the trailer swaying has stopped:
• Stop in a safe place. Get all occupants out of the vehicle.
• Check the tires of the vehicle and the trailer.
• Check the load in the trailer.
Make sure the load has not shifted.
Make sure the tongue weight is appropri-
ate, if possible.
• Check the load in the vehicle. Make sure the vehicle is not overloaded
after occupants get in.
If you cannot find any problems, the speed
at which trailer swaying occurred is beyond
the limit of your particular vehicle-trailer
combination. Drive at a lower speed to pre-
vent instability. Remember that swaying of
the towing vehicle-trailer increases as
speed increases.
WARNING
■Trailer towing precautions
To tow a trailer safely, use extreme care
and drive the vehicle in accordance with
the trailer’s characteristics and operating
conditions. Failure to do so could cause
an accident resulting in death or serious
injury. Vehicle stabi lity and braking per-
formance are affected by trailer stability,
brake setting and performance, and the
hitch. Your vehicle will handle differently
when towing a trailer.
■To avoid accident or injury
●Do not exceed the TWR, unbraked
TWR, GCWR, GVWR or GAWR.
●If the gross trailer weight is over 2000
lb. (907 kg), a sway control device with
sufficient capacity is required.
●Adjust the tongue weight within the
appropriate range. Place heavier loads
as close to the trailer axle as possible.
●Do not exceed 65 mph (104 km/h),
the posted towing speed limit or the
speed limit for your trailer as set forth
in your trailer owner’s manual, which-
ever is lowest. Slow down sufficiently
before making a turn, in cross winds,
on wet or slippery surface, etc. to help
avoid an accident. If you experience a
vehicle-trailer instability from reduc-
ing a certain speed, slow down and
make sure you keep your vehicle
speed under the speed of which you
experience the instability.
●Do not make jerky, abrupt or sharp
turns.
●Do not apply the brakes suddenly as
you may skid, resulting in jackknifing
and loss of vehicle control. This is
especially true on wet or slippery sur-
faces.
●Do not exceed the trailer hitch assem-
bly weight, gross vehicle weight, gross
axle weight and tra iler tongue weight
capacities.
●Do not use the following systems when
trailer towing.
• Dynamic radar cruise control with full-speed range
• LTA (Lane Tracing Assist)
• PCS (Pre-Collision System)
• BSM (Blind Spot Monitor) (if equipped)
●Slow down and downshift before
descending steep or long downhill
grades. Do not make sudden down-
shifts while descendi ng steep or long
downhill grades.

1754-2. Driving procedures
4
Driving
released, “Steering Wheel Lock Press
Engine Switch while Turning Wheel” will
be displayed on the multi-information dis-
play.
Check that the shift lever is in P. Press the
engine switch shortly and firmly while
turning the steering wheel left and right.
●To prevent the steering lock motor from
overheating, operation of the motor may
be suspended if the engine is turned on
and off repeatedly in a short period of
time. In this case, refrain from operating
the engine switch. After about 10 sec-
onds, the steering lock motor will resume
functioning.
■When “Access System with Elec. Key
Malfunction See Owner’s Manual” is
displayed on the mu lti-information dis-
play
The system may be malfunctioning. Have
the vehicle inspected by your Lexus dealer
immediately.
■Electronic key battery
 P.379
■Operation of the engine switch
●If the switch is not pressed shortly and
firmly, the engine switch mode may not
change or the engine may not start.
●If attempting to restart the engine imme-
diately after turning the engine switch off,
the engine may not start in some cases.
After turning the engine switch off, please
wait a few seconds before restarting the
engine.
■Customization
If the smart access sy stem with push-button
start has been deactivated in a customized
setting, refer to P.431.
1 Stop the vehicle completely.
2 Set the parking brake ( P.183),
and shift the shift lever to P.
3 Press the engine switch.
4 Release the brake pedal and check
that the display on the meters is off.
■Automatic engine shut off feature
●The vehicle is equipped with a feature
WARNING
■When starting the engine
Always start the engine while sitting in
the driver’s seat. Do not depress the
accelerator pedal while starting the
engine under any circumstances.
Doing so may cause an accident result-
ing in death or serious injury.
■Caution while driving
If engine failure occurs while the vehicle
is moving, do not lock or open the doors
until the vehicle reaches a safe and com-
plete stop. Activation of the steering lock
in this circumstance may lead to an acci-
dent, resulting in death or serious injury.
NOTICE
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start
or stalls frequently, have your vehicle
checked by your Lexus dealer immedi-
ately.
■Symptoms indicating a malfunction
with the engine switch
If the engine switch seems to be operat-
ing somewhat differently than usual, such
as the switch sticking slightly, there may
be a malfunction. Contact your Lexus
dealer immediately.
Stopping the engine

1894-3. Operating the lights and wipers
4
Driving
Doing so interferes with the sensor detect-
ing the level of ambient light and may cause
the automatic headlight system to malfunc-
tion.
■Automatic light off system
●When the headlights come on: The head-
lights and tail lights turn off 30 seconds
after a door is opened and closed if the
engine switch is turned to ACCESSORY
mode or turned off. (The lights turn off
immediately if on the key is pressed
after all the doors are locked.)
●When only the tail lights are on: The tail
lights turn off automatically if the engine
switch is turned to ACCESSORY mode
or turned off and the driver’s door is
opened.
To turn the lights on again, turn the engine
switch to IGNITION ON mode, or turn the
light switch off once and then back to
or .
■Automatic headlight leveling system (if
equipped)
The level of the headlights is automatically
adjusted according to the number of pas-
sengers and the loading condition of the
vehicle to ensure that the headlights do not
interfere with other road users.
■Light reminder buzzer
A buzzer sounds when the engine switch is
turned off or turned to ACCESSORY
mode and the driver’s door is opened while
the lights are turned on.
■Welcome lighting
If the headlight switch is turned to and
the surrounding area is dark, unlocking the
doors using the smart access system with
push-button start or wireless remote con-
trol will turn the parking lights and tail lights
on automatically.
■Windshield wiper linked headlight illu-
mination
When driving during daytime with the
headlight switch turned to , if the wind-
shield wipers are used, the headlights will turn on automatically after several seconds
to help enhance the visibility of your vehicle.
■Battery-saving function
In order to prevent the battery of the vehicle
from discharging, if the headlights and/or
tail lights are on when the engine switch is
turned off the battery saving function will
operate and automatically turn off all the
lights after approximately 20 minutes.
When the engine switch is turned to IGNI-
TION ON mode, the battery-saving func-
tion will be disabled.
When any of the following are performed,
the battery-saving function is canceled
once and then reactivated. All the lights will
turn off automatically 20 minutes after the
battery- saving function has been reacti-
vated:
●When the headlight switch is operated
●When a door is opened or closed
■Customization
Some functions can be customized.
(  P.461)
1 With the headlights on, push the
lever away from you to turn on the
high beams.
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than
necessary when the engine is off.
Turning on the high beam head-
lights

1904-3. Operating the lights and wipers
Pull the lever toward you to the center
position to turn the high beams off.
2Pull the lever toward you and
release it to flash the high beams
once.
You can flash the high beams with the
headlights on or off.
AFS (Adaptive Front-lighting System)
secures excellent visibility at intersec-
tions and on curves by automatically
adjusting the direction of the light axis
of the headlights according to vehicle
speed and the degree of the tire’s angle
as controlled by steering input.
AFS operates at sp eeds of 6 mph (10
km/h) or higher.
■Customization
Some functions can be customized.
(  P.461)
 When the steering wheel or turn
signal lever is operated while the
headlights are on (low beam), a cor-
nering light will turn on and light up
the direction of movement of the
vehicle. The cornering lights are
designed to ensure excellent visibil-
ity when making a turn at an inter-
section.
However, when vehicle speed is approxi-
mately 22 mph (35 km/h) or higher, the
cornering lights will not turn on.
 When the shift lever is in R while the headlights are on (low beam), both
cornering lights will turn on. This is
designed to enhance visibility when
parking.
■Cornering lights (if equipped)
When the cornering lights are on for more
than 30 minutes, they will turn off automati-
cally.
AFS (Adaptive Front-lighting
System) (if equipped)
Cornering lights (if equipped)

1944-3. Operating the lights and wipers
*:If equipped
1 (U.S.A.) or (Canada)
Turns the fog lights off
2 Turns the fog lights on
■Fog lights can be used when
The headlights are on in low beam.
Operate the lever operates the
wipers or washer as follows.
Intermittent windsh ield wipers with
interval adjuster
Wiper intervals can be adjusted when
intermittent operation is selected.
The interval of intermittent operation
varies according to vehicle speed.
Fog light switch*
The fog lights secu re excellent visi-
bility in difficult driving conditions,
such as in rain and fog.
Operating instructions
Windshield wipers and
washer
Operating the lever can switch
between automatic operation and
manual operation, or can use the
washer.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may dam-
age the windshield.
Operating the wiper lever

2034-5. Using the driving support systems
4
Driving
4-5.Using the driving support systems
■PCS (Pre-Collision System)
 P.209
■LTA (Lane Tracing Assist)
 P.216
■AHB (Automatic High Beam)
 P.191
■RSA (Road Sign Assist)*
P.225
*:If equipped
■Dynamic radar cruise control with
full-speed range
 P.227 Two types of sensors, located behind
the front grille and windshield, detect
information necessary to operate the
drive assist systems.
Radar sensor
Front camera
Lexus Safety System + 2.0
The Lexus Safety System + 2.0 con-
sists of the following drive assist sys-
tems and contributes to a safe and
comfortable driving experience:
Driving assist system
WARNING
■Lexus Safety System + 2.0
The Lexus Safety System + 2.0 is
designed to operate under the assump-
tion that the driver wi ll drive safely, and is
designed to help reduce the impact to
the occupants and the vehicle in the case
of a collision or assist the driver in normal
driving conditions.
As there is a limit to the degree of recog-
nition accuracy and control performance
that this system can provide, do not
overly rely on this system. The driver is
always responsible for paying attention
to the vehicle’s surro undings and driving
safely.
Sensors
WARNING
■To avoid malfunction of the radar sen-
sor
Observe the following precautions.
Otherwise, the radar sensor may not
operate properly, possibly leading to an
accident resulting in death or serious
injury.
A
B

2094-5. Using the driving support systems
4
Driving
The system can detect the following:
Vehicles
 Bicyclists
 Pedestrians
■Pre-collision warning
When the system determines that the
possibility of a frontal collision is high, a
buzzer will sound and a warning mes-
sage will be displayed on the
multi-information display to urge the driver to take evasive action.
■Pre-collision brake assist
When the system determines that the
possibility of a frontal collision is high,
the system applies greater braking
force in relation to how strongly the
brake pedal is depressed.
■Pre-collision braking
If the system determines that the possi-
bility of a frontal collision is extremely
high, the brakes are automatically
applied to help avoid the collision or
reduce the impact of the collision.
■Suspension control (if equipped)
When the system determines that the
possibility of a frontal collision is high,
the Adaptive Variable Suspension Sys-
tem ( P.275) will control the damping
force of the shock absorbers to help
maintain an appropriate vehicle pos-
ture.
PCS (Pre-Collision System)
The pre-collision system uses a
radar sensor and front camera to
detect objects ( P.209) in front of
the vehicle. When the system
determines that the possibility of a
frontal collision with an object is
high, a warning operates to urge
the driver to take evasive action
and the potential brake pressure is
increased to help the driver avoid
the collision. If the system deter-
mines that the possibility of a frontal
collision with an object is extremely
high, the brakes are automatically
applied to help avoid the collision or
help reduce the impact of the colli-
sion.
The pre-collision system can be dis-
abled/enabled and the warning tim-
ing can be changed. ( P.211)
Detectable objects
System functions

2164-5. Using the driving support systems
LTA (Lane Tracing Assist)
When driving on highways and
freeways with white (yellow) lane
lines, this function alerts the driver
when the vehicle might depart from
its lane or course
* and provides
assistance by operating the steer-
ing wheel to keep the vehicle in its
lane or course
*. Furthermore, the
system provides steering assistance
when dynamic radar cruise control
with full-speed range is operating
to keep the vehicle in its lane.
The LTA system recognizes white
(yellow) lane lines or a course
*
using the front camera. Addition-
ally, it detects preceding vehicles
using the front camera and radar.
*: Boundary between asphalt and the side of the road, such as grass, soil, or
a curb
WARNING
■Before using LTA system
●Do not rely solely upon the LTA sys-
tem. The LTA system does not auto-
matically drive the vehicle or reduce
the amount of attention that must be
paid to the area in front of the vehicle.
The driver must always assume full
responsibility for driving safely by pay-
ing careful attention to the surround-
ing conditions and operating the
steering wheel to correct the path of
the vehicle. Also, the driver must take
adequate breaks when fatigued, such
as from driving for a long period of
time.
●Failure to perform appropriate driving
operations and pay careful attention
may lead to an accident, resulting in
death or serious injury.
●When not using the LTA system, use
the LTA switch to turn the system off.
■Situations unsuitable for LTA system
In the following situations, use the LTA
switch to turn the system off. Failure to do
so may lead to an accident, resulting in
death or serious injury.
●Vehicle is driven on a road surface
which is slippery due to rainy weather,
fallen snow, freezing, etc.
●Vehicle is driven on a snow-covered
road.
●White (yellow) lines are difficult to see
due to rain, snow, fog, dust, etc.
●Vehicle is driven in a temporary lane or
restricted lane due to construction
work.
●Vehicle is driven in a construction
zone.
●A spare tire, tire chains, etc. are
equipped.
●When the tires have been excessively
worn, or when the tire inflation pres-
sure is low.