cruise control LEXUS UX250H 2019 Owners Manual

19Pictorial index
LTA (Lane Tracing Assist) switch ..................................................................... P.205
Vehicle-to-vehicle distance switch ................................................................... P.221
Cruise control switches ........................................................................................ P.216
Audio remote control switches
*2
Talk switch*2
*1
: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
Remote Touch.........................................................................................................P.270
Audio control switches
*
Brake hold switch .................................................................................................... P.175
EV drive mode switch ............................................................................................ P.165
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
D
E
F
G
H
A
B
C
D

762-1. Instrument cluster
*1: These lights come on when the power switch is turned to ON to indicate that a
system check is being performed. They
will go off after the hybrid system is on,
or after a few seconds. There may be a
malfunction in a system if the lights do
not come on, or go off. Have the vehicle
inspected by your Lexus dealer.
*2: This light illuminates on the multi-infor-
mation display.
The indicators inform the driver of the
operating state of the vehicle’s various
systems.
Hybrid system overheat warn-
ing light
*2( P.392)
(orange)
Low traction battery charge
warning light
*2 ( P.392)
WARNING
■If a safety system warning light does
not come on
Should a safety system light such as the
ABS and SRS warning light not come on
when you start the hybrid system, this
could mean that these systems are not
available to help pr otect you in an acci-
dent, which could result in death or seri-
ous injury. Have the vehicle inspected by
your Lexus dealer immediately if this
occurs.
Indicators
Turn signal indicator ( P.171)
(U.S.A.) Headlight indicator (
P.177)
(Canada) Tail light indicator (
P.177)
Headlight high beam indicator
( P.178)
Automatic High Beam indica-
tor
*1 (  P.180)
Front fog light indicator (if
equipped) ( P.183)
PCS warning light
*1, 2 (  P.198)
Cruise control indicator
*3
(  P.216)
Dynamic radar cruise control
indicator
*3 (  P.216)
Cruise control “SET” indica-
tor
*3 (  P.216)
(white)
LTA indicator*3 ( P.210)
(green)
LTA indicator*3 ( P.210)
(orange)
LTA indicator*3, 4 ( P.210)
BSM outside rear view mirror
indicators
*1, 5 (if equipped)
(  P.226)
BSM indicator (if equipped)
(  P.226)
Intuitive parking assist OFF indi-
cator
*2 (if equipped) ( P.233)
RCTA OFF indicator
*2 (if
equipped) ( P.239)
PKSB OFF indicator
*1, 2 (if
equipped) ( P.244)
Slip indicator
*1, 4 (  P.257)
VSC OFF indicator
*1, 2
(  P.257)
Smart access system with push-
button start indicator
*3
(  P.162)

902-1. Instrument cluster
may not be updated.
■G-force (F SPORT models)
Displays lateral G-forces on the vehi-
cle.
Acceleration G-force on the vehi-
cle
Current G-force value (analyzed
value of front/rear and left/right G-
forces)
Record of the maximum G-forces
This display is intended for use as a guide-
line. Depending on factors such as the road
surface condition, temperature and vehicle
speed, the display may not show the actual
condition of the vehicle.
 Resetting the record of maximum
G-forces
Press and hold “OK” of the meter control
switches to reset the record.
Peak hold function
If lateral G-forces of 0.5 G or greater are
generated, the G-forc e value display will
turn amber and be held for 2 seconds.
■Tire pressure
 P.348
■Units (F SPORT models)
The units of measure used can be
changed while driving.
Unlike the units sett ing performed on the
settings display, th e units setting per-
formed on the drive information display
can be changed while driving.
■Display OFF
Displays a blank screen.
Select to display the following naviga-
tion system-linked information.
 Route guidance to destination
 Compass display
■Route guidance to destination display
When the route guidance to destination
display is enabled on th e head-up display, it
will not be displayed on the multi-informa-
tion display. ( P.93)
Select to enable se lection 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.205)
 Dynamic radar cruise control with
full-speed range ( P.216)
 RSA (Road Sign Assist) (if
equipped) ( P.214)
A
B
C
Navigation system-linked dis-
play (if equipped)
Audio system-linked display
Driving support system informa-
tion display

952-1. Instrument cluster
2
Vehicle status information and indicators
Display angle
Select to adjust the angle of the head-up
display.
■Enabling/disabling of the head-up dis-
play
If the head-up display is disabled, it will
remain disabled when the power switch is
turned off then back to ON.
■Display brightness
The brightness of the head-up display can
be adjusted on of the multi-information
display. Also, it is automatically adjusted
according to the ambient brightness.
■Head-up display automatic position
adjustment (vehicles with driving posi-
tion memory)
If the display position is recorded into mem-
ory, the head-up display will be automati-
cally adjusted to the desired position.
(  P.133)
■When the 12-volt battery is discon-
nected
The customize settings of the head-up dis-
play will be reset.
Displays the operational status of the
following systems:
 LTA (Lane Tracing Assist)
( P.205)
 Dynamic radar cruise control with
full-speed range ( P.216)
Details of content displayed on the head-
up display may differ from that displayed
on the multi-inform ation display. For
details, refer to the explanation of each sys-
tem.
Pop-up displays for the following sys-
tems will be displayed when necessary.
■Driving support systems
Displays a warning/suggestion/advice
message or the operating state of a rel-
evant system.
 PCS (Pre-Collision System)
( P.198)
 Intuitive parking assist (if equipped)
( P.232)
 Parking Support Brake function (for
static objects) (if equipped)
( P.247)
 Brake Override System ( P.152)
WARNING
■Caution for changing settings of the
head-up display
As the hybrid system needs to be operat-
ing while changing th e settings of the
head-up display, ensure that the vehicle
is parked in a place with adequate venti-
lation. In a closed area such as a garage,
exhaust gases including harmful carbon
monoxide (CO) may collect and enter
the vehicle. This may lead to death or a
serious health hazard.
NOTICE
■When changing the settings of the
head-up display
To prevent 12-volt battery discharge,
ensure that the hybrid system is operat-
ing while changing th e settings of the
head-up display.
Driving support system display
area
Pop-up display

151
4
4
Driving
Driving
4-1. Before drivingDriving the vehicle ..................... 152
Cargo and luggage ................... 157
Vehicle load limits ...................... 160
Trailer towing ............................... 160
Dinghy towing .............................. 161
4-2. Driving procedures Power (ignition) switch ............ 162
EV drive mode ............................ 165
Hybrid transmission .................. 167
Turn signal lever........................... 171
Parking brake .............................. 172
Brake Hold.................................... 175
ASC (Active Sound Control) 176
4-3. Operating the lights and wipers Headlight switch ......................... 177
Automatic High Beam ............. 180
Fog light switch ........................... 183
Windshield wipers and washer ......................................................... 184
Rear window wiper and washer ......................................................... 188
4-4. Refueling Opening the fuel tank cap...... 190
4-5. Using the driving support sys- tems
Lexus Safety System+2.0 ....... 192
PCS (Pre-Collision System).. 198
LTA (Lane Tracing Assist)..... 205
RSA (Road Sign Assist) ........... 214Dynamic radar cruise control with
full-speed range....................... 216
BSM (Blind Spot Monitor) .... 226
PKSA (Parking Support Alert) ........................................................ 231
Intuitive parking assist ............. 232
RCTA (Rear Cross Traffic Alert) function....................................... 239
PKSB (Parking Support Brake) ....................................................... 243
Parking Support Brake function (static objects) ......................... 247
Parking Support Brake function (rear-crossing vehicles) ...... 252
Driving mode select switch .. 255
Driving assist systems.............. 256
4-6. Driving tips Hybrid vehicle driving tips ..... 261
Winter driving tips .................... 263
Utility vehicle precautions..... 266

1674-2. Driving procedures
4
Driving
*1: To improve fuel efficiency and reduce noise, shift the shift lever to D for normal
driving.
*2: By selecting shift ranges using S mode, you can control accelerating force and
engine braking force.
■Reverse warning buzzer
When shifting into R, a buzzer will sound to
inform the driver that the shift lever is in R.
■When driving with dynamic radar cruise
control with full-speed range activated
Even when performing the following
actions with the intent of enabling engine
braking, engine braking will not activate
because dynamic radar cruise control with
full-speed range will not be canceled.
●While driving in S mode, downshifting to
5 or 4. ( P.170)
●When switching the driving mode to
Sport mode while driving in D position.
WARNING
■Caution while driving
When driving in EV drive mode, pay spe-
cial attention to the area around the vehi-
cle. Because there is no engine noise,
pedestrians, people riding bicycles or
other people and vehicles in the area
may not be aware of the vehicle starting
off or approaching th em, so take extra
care while driving. Th erefore, take extra
care while driving even if the vehicle
proximity notification system is active.
Hybrid transmission
Select the shift position depending
on your purpose and situation.
Shift position purpose and func-
tions
Shift posi-
tionObjective or function
PParking the vehicle/starting the hybrid system
RReversing
N
Neutral
(Condition in which the
power is not transmitted)
DNormal driving*1
SS mode driving*2 (  P.170)

1924-5. Using the driving support systems
4-5.Using the driving support systems
■PCS (Pre-Collision System)
 P.198
■LTA (Lane Tracing Assist)
 P.205
■Automatic High Beam
 P.180
■RSA (Road Sign Assist) (if
equipped)
 P.214
■Dynamic radar cruise control with
full-speed range
 P.216 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

2054-5. Using the driving support systems
4
Driving
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.

2094-5. Using the driving support systems
4
Driving■Vehicle sway warning function
When the vehicle is swaying within a
lane, the warning buzzer will sound and
a message will be displayed on the
multi-information display to alert the
driver.
■Lane centering function
This function is linked with dynamic
radar cruise control with full-speed
range and provides the required assis-
tance by operating the steering wheel
to keep the vehicle in its current lane.
When dynamic radar cruise control with
full-speed range is not operating, the lane
centering function does not operate.
In situations where the white (yellow) lane
lines are difficult to see or are not visible,
such as when in a traffic jam, this function
will operate to help follow a preceding
vehicle by monitoring the position of the
preceding vehicle.
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.

2124-5. Using the driving support systems
ft. (3 m) or more.
• No system malfunctions are detected. ( P.213)
●Lane centering function
This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.
• Setting for “Steering Assist” and “Lane
Center” in of th e multi-information
display are set to “On”. ( P.87)
• This function recognizes white (yellow) lane lines or the position of a preceding
vehicle (except when the preceding vehi-
cle is small, such as a motorcycle).
• The dynamic radar cruise control with full-speed range is operating in vehicle-
to-vehicle distance control mode.
• Width of traffic lane is approximately 10 to 13 ft. (3 to 4 m).
• Turn signal lever is not operated.
• Vehicle is not being driven around a
sharp curve.
• No system malfunctions are detected.
( P.213)
• Vehicle does not acc elerate or deceler-
ate by a fixed amount or more.
• Steering wheel is not operated with a steering force level su itable for changing
lanes.
• ABS, VSC, TRAC and PCS are not oper- ating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not
displayed. ( P.212)
• The vehicle is being driven in the center
of a lane.
• Steering assist function is not operating.
■Temporary cancelation of functions
●When operation conditions are no longer
met, a function may be temporarily can-
celed. However, when the operation con-
ditions are met again, operation of the
function is automa tically restored.
(  P.211)
●If the operation conditions ( P.211) are
no longer met while the lane centering
function is operating, the steering wheel
may vibrate and the buzzer may sound to
indicate that the function has been tem-
porarily canceled. However, if the “Steer-
ing wheel vibration” customization setting is set to “On”, the system will notify
the driver by vibrating the steering wheel
instead of sounding the buzzer.
■Steering assist function/lane centering
function
●Depending on the vehicle speed, lane
departure situation, road conditions, etc.,
the driver may not feel the function is
operating or the function may not oper-
ate at all.
●The steering control of the function is
overridden by the driver’s steering wheel
operation.
●Do not attempt to test the operation of
the steering assist function.
■Lane departure alert function
●The warning buzzer may be difficult to
hear due to external noise, audio play-
back, etc. Also, it may be difficult to feel
steering wheel vibrations due to the road
conditions, etc.
●If the edge of the course* is not clear or
straight, the lane departure alert function
may not operate.
●Vehicles with Blind Spot Monitor: It may
not be possible for the system to deter-
mine if there is a danger of a collision with
a vehicle in an adjacent lane.
●Do not attempt to test the operation of
the lane departure alert function.
*: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
■Hands off steering wheel warning
In the following situations, a warning mes-
sage urging the driver to hold the steering
wheel and the symbol sh own in the illustra-
tion are displayed on the multi-information
display to warn the driver. The warning
stops when the system determines that the
driver holds the steering wheel. Always
keep your hands on the steering wheel
when using this system , regardless of warn-
ings.