lane assist LEXUS RX350 2020 Owners Manual

3TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
Trailer towing (vehicles with towing package) ........................................ 165
Dinghy towing ................................ 175
4-2. Driving procedures Engine (ignition) switch .............. 176
Automatic transmission.............. 180
Turn signal lever............................. 184
Parking brake ................................. 185
Brake Hold....................................... 188
4-3. Operating the lights and wipers Headlight switch ............................ 190
Automatic High Beam ................ 193
Fog light switch .............................. 195
Windshield wipers and washer ............................................................ 196
Rear window wiper and washer ........................................................... 200
4-4. Refueling Opening the fuel tank cap........ 202
4-5. Using the driving support systems Lexus Safety System + 2.0 ....... 205
PCS (Pre-Collision System)...... 211
LTA (Lane Tracing Assist)......... 218
RSA (Road Sign Assist) ............. 227
Dynamic radar crui se control with
full-speed range......................... 230
BSM (Blind Spot Monitor) ....... 239
PKSA (Parking Support Alert) ........................................................... 245
Intuitive parking assist ................ 247
RCTA (Rear cross traffic alert) function .......................................... 253
PKSB (Parking Support Brake) ........................................................... 258
Parking Support Brake function (static objects) ............................ 264Parking Support Brake function
(rear-crossing vehicles) ......... 270
Driving mode select switch ......274
All-wheel drive lock switch...... 276
Driving assist systems ................. 277
4-6. Driving tips Winter driving tips ....................... 283
Utility vehicle precautions........ 285
5-1. Remote Touch/Display Remote Touch............................... 290
Center Display............................... 292
5-2. Lexus Climate Concierge Lexus Climate Concierge........ 295
5-3. Using the air conditioning system and defogger
Front automatic air conditioning
system ............................................ 296
Rear automatic air conditioning system ............................................ 307
Heated steering wheel/seat heat- ers/seat ventilators.................... 310
5-4. Using the interior lights Interior lights list ............................ 313
5-5. Using the storage features List of storage features ............... 316
Luggage compartment features ..........

................................................. 322
5-6. Using the other interior features Other interior features .............. 327
Garage door opener ................. 339
Compass ......................................... 346
5Interior features

17Pictorial index
Driving position memory switches*................................................................... P.134
Outside rear view mirror switches .................................................................... P.142
Door lock switches ...................................................................................................P.99
Power window switches ........................................................................................ P.145
Window lock switch ............................................................................................... P.147
*:If equipped
Audio remote control switches
*
Paddle shift switches ..............................................................................................P.182
Meter control switches .......................................................................................... P.80
Vehicle-to-vehicle distance switch ..................................................................P.234
Cruise control switch........................................................................................... P.230
LTA (Lane Tracing Assist) switch ..................................................................... P.223
Talk switch
*
Phone switch*
*
: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
A
B
C
D
E
A
B
C
D
E
F
G
H

832-1. Instrument cluster
2
Vehicle status information and indicators
tire inflation pressure after the engine
switch is turned to IGNITION ON mode.
It may also take a few minutes to display
the tire inflation pressure after inflation
pressure has been adjusted.
• “---” may be displayed if the tire position information cannot be determined due to
unfavorable radio wave conditions.
• Tire inflation pressure changes with tem- perature. The displayed values may also
be different from the values measured
using a tire pressure gauge.
Select to display the following naviga-
tion system-linked information.
 Route guidance
 Compass display (heading-up dis-
play)
Select to enable selection of an audio
source or track on the meter using the
meter control switches.
Select to display the operational status
of the following systems:
 LTA (Lane Tracing Assist) ( P.218)
 RSA (Road Sign Assist) (if
equipped) ( P.227)
 Dynamic radar cruise control with
full-speed range ( P.230)
■Meter display settings that can be
changed
 Clock
Select to switch between 12-hour display
and 24-hour display.
Language
Select to change the language displayed.
Units
Select to change the units of measure dis-
played.
 Eco Driving Indicator Light
( P.81)
Select to enable/disable the Eco Driving
Indicator Light.
 Switch settings
Select to display how to change the top
screen.
Drive information 1/Drive informa-
tion 2/Drive information 3
Select to select up to 2 items ( P.80) that
will be displayed on each Drive information
screen (Drive information 1 screen, Drive
information 2 screen, and Drive informa-
tion 3 screen) respectively.
 Pop-up display
Select to enable/disable the pop-up dis-
play.
• Intersection guidance (if equipped)
• Incoming calls
• Brightness adjustment
Color (except F SPORT models)
Select to set the color of the cursor on the
multi-information display.
Needle (F SPORT models)
Navigation system-linked dis-
play (if equipped)
Audio system-linked display
Driving assist system information
Settings display

862-1. Instrument cluster
*:If equipped
Illustrations used in this text are intended as examples, and may differ from the image that is
actually displayed by the head-up display.
Navigation system-linked display area (if equipped) ( P.89)
Message display area ( P.89)
Displays the following items:
• Warning/Message (if equipped)
• Audio system operation status
• Outside temperature
Displays the following item, which ar e linked to the navigation system:
•Street name
/ icon ( P.88)
Driving assist system status display area (if equipped)
Displays the operational stat us of the following systems:
• Dynamic radar cruise control with full-speed range ( P.230)
• LTA (Lane Tracing Assist) ( P.218)
• Intuitive parking assist ( P.247)
• Parking Support Brake function (for static objects) (P.264)
Displayed content is the same as that displaye d on the multi-information display. For details,
Head-up display*
The head-up display is linked to the meters and navigation system (if equipped)
and projects a variety of information in front of the driver, such as the current
vehicle speed and route guidance to a set destination.
System components
A
B
C
D

155
4
4
Driving
Driving
.4-1. Before drivingDriving the vehicle ..................... 156
Cargo and luggage .................... 161
Vehicle load limits ...................... 164
Trailer towing (vehicles without towing package) ...................... 165
Trailer towing (vehicles with tow- ing package).............................. 165
Dinghy towing ............................. 175
4-2. Driving procedures Engine (ignition) switch ........... 176
Automatic transmission........... 180
Turn signal lever.......................... 184
Parking brake .............................. 185
Brake Hold.................................... 188
4-3. Operating the lights and wipers Headlight switch ......................... 190
Automatic High Beam ............. 193
Fog light switch ........................... 195
Windshield wipers and washer ......................................................... 196
Rear window wiper and washer ........................................................ 200
4-4. Refueling Opening the fuel tank cap..... 202
4-5. Using the driving support sys- tems
Lexus Safety System + 2.0 .... 205
PCS (Pre-Collision System)... 211
LTA (Lane Tracing Assist)...... 218RSA (Road Sign Assist)...........227
Dynamic radar cruise control with
full-speed range...................... 230
BSM (Blind Spot Monitor) .... 239
PKSA (Parking Support Alert) ....................................................... 245
Intuitive parking assist ............. 247
RCTA (Rear cross traffic alert) function....................................... 253
PKSB (Parking Support Brake) ....................................................... 258
Parking Support Brake function (static objects) ......................... 264
Parking Support Brake function (rear-crossing vehicles) ...... 270
Driving mode select switch .. 274
All-wheel drive lock switch ... 276
Driving assist systems.............. 277
4-6. Driving tips Winter driving tips .................... 283
Utility vehicle precautions..... 285

1674-1. 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.

2054-5. Using the driving support systems
4
Driving
4-5.Using the driving support systems
■PCS (Pre-Collision System)
 P.211
■LTA (Lane Tracing Assist)
 P.218
■Automatic High Beam
 P.193
■RSA (Road Sign Assist)*
P.227
*:If equipped
■Dynamic radar cruise control with
full-speed range
 P.230 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

2184-5. 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.

2214-5. Using the driving support systems
4
Driving
■Lane departure alert function
When the system determines that the
vehicle might depart from its lane or
course
*, a warning is displayed on the
multi-information display, and either a
warning buzzer will sound or the steer-
ing wheel will vibrate to alert the driver.
When the warning buzzer sounds or the
steering wheel vibrates, check the area
around your vehicle and carefully operate
the steering wheel to move the vehicle
back to the center of the lane.
Vehicle with BSM: When the system deter-
mines that the vehicle might depart from its
lane and that the possibility of a collision
with an overtaking vehicle in the adjacent
lane is high, the lane departure alert will
operate even if the turn signals are operat-
ing.
*: Boundary between asphalt and the side of the road, such as grass, soil, or a curb
■Steering assist function
When the system determines that the
vehicle might depart from its lane or
course
*, the system provides assis-
tance as necessary by operating the
steering wheel in small amounts for a
short period of time to keep the vehicle
in its lane.
If the system detects that the steering
wheel has not been operated for a fixed
amount of time or the steering wheel is not
being firmly gripped, a warning is displayed
on the multi-informat ion display and the
function is temporarily canceled.
Vehicle with BSM: When the system deter-
mines that the vehicle might depart from its
lane and that the po ssibility of a collision
with an overtaking vehicle in the adjacent
lane is high, the steering assist function will
operate even if the turn signals are operat-
ing.
*: Boundary between asphalt and the side of the road, such as grass, soil, or a curb
WARNING
●The vehicle is affected by wind from a
vehicle driven in a nearby lane.
●The vehicle has just changed lanes or
crossed an intersection.
●Tires which differ by structure, manu-
facturer, brand or tread pattern are
used.
●Snow tires, etc. are equipped.
●The vehicle is being driven at
extremely high speeds.
Functions included in LTA system

2234-5. Using the driving support systems
4
Driving
Press the LTA switch to turn the LTA
system on.
The LTA indicator illuminates and a mes-
sage is displayed on the multi-information
display.
Press the LTA switch again to turn the LTA
system off.
When the LTA system is turned on or off,
operation of the LTA system continues in
the same condition the next time the
engine is started.
LTA indicator
The illumination condition of the indicator informs the driver of the system operation
status.
Illuminated in white:
LTA system is operat-
ing.
Illuminated in green: Steering wheel assis-
tance of the steering assist function or lane
centering function is operating.
Flashing in orange: Lane departure alert
function is operating.
Operation display of steering
wheel operation support
Displayed when the multi-information dis-
play is switched to th e driving assist system
information screen.
Indicates that steering wheel assistance of
the steering assist function or lane center-
ing function is operating.
Both outer sides of the lane are displayed:
Indicates that steering wheel assist of the
lane centering function is operating.
One outer side of the lane is displayed:
Indicates that steering wheel assist of the
steering assist func tion is operating.
Both outer sides of the lane are flashing:
Alerts the driver that their input is neces-
sary to stay in the center of the lane (lane
centering function).
Lane departure alert function dis-
play
Displayed when the multi-information dis-
play is switched to th e driving assist system
information screen.
Turning LTA system on
Indications on multi-information
display
A
B
C