power LEXUS UX250H 2019 Owners Manual

2614-6. Driving tips
4
Driving
4-6.Driving tips
When using Eco drive mode, the
torque corresponding to the accelera-
tor pedal depression amount can be
generated more smoothly than it is in
normal conditions. In addition, the
operation of the air conditioning sys-
tem (heating/cooling) will be mini-
mized, improving the fuel economy.
( P.255)
The Eco-friendly driving is possible by
keeping the indicate of Hybrid System
Indicator within Eco area. ( P.79, 84)
Shift the shift lever to D when stopped
at a traffic light, or driving in heavy traf-
fic, etc. Shift the shift lever to P when
parking. When using the N, there is no
positive effect on fuel consumption. In
the N, the gasoline engine operates
but electricity cannot be generated.
Also, when using the air conditioning
system, etc., the hybrid battery (trac-
tion battery) power is consumed. 
Drive your vehicle smoothly. Avoid
abrupt acceleration and decelera-
tion. Gradual acceleration and
deceleration will make more effec-
tive use of the electric motor (trac-
tion motor) without having to use
gasoline engine power.
 Avoid repeated acceleration.
Repeated acceleration consumes
hybrid battery (traction battery)
power, resulting in poor fuel con-
sumption. Battery power can be
restored by driving with the acceler-
ator pedal slightly released.
Make sure to operate the brakes gently
and in a timely manner. A greater
amount of electrical energy can be
regenerated when slowing down.
Repeated acceleration and decelera-
tion, as well as long waits at traffic
lights, will lead to bad fuel economy.
Check traffic reports before leaving
and avoid delays as much as possible.
When driving in a traffic jam, gently
release the brake pedal to allow the
vehicle to move forward slightly while
avoiding overuse of the accelerator
pedal. Doing so can help control
excessive gasoline consumption.
Hybrid vehicle driving tips
For economical and ecological
driving, pay attention to the follow-
ing points:
Using Eco drive mode
Use of Hybrid System Indicator
Shift lever operation
Accelerator pedal/brake pedal
operation
When braking
Delays

2634-6. Driving tips
4
Driving
Use fluids that are appropriate to
the prevailing outside temperatures.
• Engine oil
• Engine/power control unit coolant
• Washer fluid
Have a service technician inspect
the condition of the 12-volt battery.
 It is recommended that the vehicle is
fitted with four snow run-flat tires or
purchase a set of tire chains for the
front tires.
Ensure that all tires are the same size and
brand, and that chains match the size of the
tires.
Perform the following according to the
driving conditions:
Do not try to forcibly open a window
or move a wiper that is frozen. Pour
warm water over the frozen area to
melt the ice. Wipe away the water
immediately to prevent it from
Winter driving tips
Carry out the necessary prepara-
tions and inspections before driving
the vehicle in winter. Always drive
the vehicle in a manner appropriate
to the prevailing weather condi-
tions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in a loss of
vehicle control and cause death or seri-
ous injury.
●Use tires of the specified size.
●Maintain the recommended level of air
pressure.
●Do not drive in excess of 75 mph (120
km/h), regardless of the type of snow
tires being used.
●Use snow tires on all, not just some
wheels.
■Driving with tire chains
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in the vehicle
being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed
limit specified for the tire chains being
used, or 30 mph (50 km/h), which-
ever is lower.
●Avoid driving on bumpy road surfaces
or over potholes.
●Avoid sudden acceleration, abrupt
steering, sudden br aking and shifting
operations that cause sudden engine
braking.
●Slow down sufficiently before entering
a curve to ensure that vehicle control is
maintained.
●Do not use LTA (Lane Tracing Assist).
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow
tires from Lexus dealers or legitimate tire
retailers.
This is because the removal and attach-
ment of snow tires affects the operation
of the tire pressure warning valves and
transmitters.
Before driving the vehicle

2785-3. Using the air conditioning system and defogger
■When the outside temperature exceeds
75°F (24°C) and the air conditioning
system is on
●In order to reduce the air conditioning
power consumption, the air conditioning
system may switch to recirculated air
mode automatically.
This may also reduce fuel consumption.
●Recirculated air mode is selected as a
default mode when the power switch is
turned to ON.
●It is possible to switch to outside air mode
at any time by pressing the outside/recir-
culated air mode switch.
■Fogging up of the windows
●The windows will easily fog up when the
humidity in the vehicle is high. Pressing
“A/C” button or selecting “A/C” will
dehumidify the air from the outlets and
defog the windshield effectively.
●If you turn “A/C” off, the windows may fog
up more easily.
●The windows may fog up if the recircu-
lated air mode is used.
■Outside/recirculated air mode
●When driving on dusty roads such as tun-
nels or in heavy traffic, set the out-
side/recirculated air mode switch to the
recirculated air mode. This is effective in
preventing outside air from entering the
vehicle interior. During cooling opera-
tion, setting the recirculated air mode will
also cool the vehicle interior effectively.
●Outside/recirculated air mode may auto-
matically switch de pending on the tem-
perature setting or the inside
temperature.
■Registering air condit ioning settings to
electronic keys (vehicles with driving
position memory)
●Unlocking the vehicle using an electronic
key and turning the power switch to ON
will recall that key’s registered air condi-
tioning settings.
●When the power switch is turned off, the
current air conditioning settings will auto-
matically be registered to the electronic
key that was used to unlock the vehicle.
●The system may not operate correctly if
more than one electr onic key is in the
vicinity or if the smart access system with
push-button start is used to unlock a pas-
senger door.
●The doors that can recall the air condi-
tioning setting when unlocked using the
smart access system with push-button
start can be changed.
* For details, con-
tact your Lexus dealer.
*: The doors that can recall the driving posi-
tion memory are changed at the same
time.
■Operation of the air conditioning sys-
tem in Eco drive mode
●In Eco drive mode, the air conditioning
system is controlled as follows to priori-
tize fuel efficiency
• Engine speed and compressor operation controlled to restrict heating/cooling
capacity
• Fan speed restricted when automatic mode is selected
●To improve air conditioning performance,
perform the following operations
• Turn off eco air conditioning mode ( P.279)
• Adjust the fan speed
•Turn off Eco drive mode
■When the outside temperature is low
The dehumidification function may not
operate even when “A/C” is pressed or
“A/C” is selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning
system to the outside air mode.
●During use, various odors from inside and
outside the vehicle may enter into and
accumulate in the air conditioning sys-
tem. This may then cause odor to be
emitted from the vents.
●To reduce potential odors from occur-
ring:
• It is recommended that the air condition- ing system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short pe riod of time imme-

2825-3. Using the air conditioning system and defogger
In S-FLOW mode, priority for the air-
flow is given to the front seats, reducing
the airflow and air conditioning effect
on the rear seats.
The following S-FLOW modes are
available:
Automatic S-FLOW mode
When a rear passenger is determined
to be in the vehicle, S-FLOW mode will
be automatically disabled.
The indicator will illuminate on the air con-
ditioning control screen when S-FLOW
mode is enabled.
To enable/disable S-FLOW mode and
enter manual S-FLOW mode, select the S-
FLOW mode switch ( P.280).
Manual S-FLOW mode
When the S-FLOW mode switch is
selected, S-FLOW mode will be manu-
ally enabled/disabled.
The indicator will illuminate on the air con-
ditioning control screen when S-FLOW
mode is enabled.
The system does not determine whether a
passenger is in the rear seats by the open-
ing and closing of a rear door, so S-FLOW mode cannot be automatically disabled.
To automatically disable S-FLOW mode by
opening and closing a rear door, switch to
automatic S-FLOW mode.
■S-FLOW air conditioning control
Operation of S-FLOW mode changes
according to the following conditions.
However, depending on the set tem-
perature and air conditioning load is
high, the operation may not change.
 Driver seat priority:
• When the system determines there is no
passenger in the front passenger seat in
manual S-FLOW mode
• When the system determines there are no passengers in the front passenger
seat and rear seats in automatic S-
FLOW mode
The airflow to the front passenger seat and
rear seat stops and the front passenger
temperature display turns off.
 Front seat priority:
When the system determines there are no
passengers in the rear seats
S-FLOW disabled:
When the system determines there is a
passenger in the rear seats
■Passenger presence determination in S-
FLOW mode
The system determines that there is a pas-
senger in any of the following situations.
If a passenger is judged to be in the vehicle,
the system will retain the judgment for a
certain amount of time after the power
switch is turned off.
NOTICE
●Do not stick anything on the sensor
S-FLOW mode

2835-3. Using the air conditioning system and defogger
5
Interior features
Front passenger seat
• When the front passenger’s door is opened and closed
• When a passenger is sitting on the front passenger seat
• When the front passenger side seat belt
is fastened
• When the front passenger seat set tem- perature is changed
After only the front passenger side door is
opened and closed, when the vehicle is
driven at 20 km/h (12 mph) or more, the
system determines that there is no passen-
ger in the front passenger seat.
Rear seats
When a rear door is opened and closed
■Operation of automatic S-FLOW mode
When the system is operating in S-FLOW
mode, if a rear door is opened and then
closed, S-FLOW mode will be disabled. To
enable S-FLOW mode, select the S-FLOW
mode switch. In this case, the system
switches to manual S-FLOW mode.
■Changing from manual S-FLOW mode
to automatic S-FLOW mode
1 Select the S-FLOW mode switch to dis-
able S-FLOW mode
2 Turn the power switch off.
3 After 60 minutes have elapsed, change
the power switch to ON.
To turn on the “DUAL” mode, perform
any of the following procedures:
Select “DUAL” on the sub function
menu. ( P.279)
 Select “DUAL” on the option con-
trol screen.
 Adjust the front passenger’s side
temperature setting.
The indicator comes on when the “DUAL”
mode is on.
■Location of air outlets
The air outlets and air volume changes
according to the selected air flow
mode.
■Adjusting the position of and open-
ing and closing the air outlets
Front
Direct air flow to the left or right, up or
down
Turn the knob to open or close the vent
Adjusting the temperature for
driver front and passenger seats
separately (“DUAL” mode)
Air outlet layout and operations

2865-3. Using the air conditioning system and defogger
*: If equipped
Turns the heated steering wheel on/off
Each time the switch is pressed, the opera-
tion condition changes as follows.
AUTO (lit)  Hi (2 segments lit)  Lo (1
segment lit)  Off
The AUTO indicator and/or level indi-
cator illuminates during operation.
■The heated steering wheel can be used
when
The power switch is in ON.
■Customization
Steering wheel heating preference in auto-
matic mode can be changed. (Customiz-
able features: P.444)
Heated steering wheel*/seat
h
eaters*/seat ventilators*
 Heated steering wheel
Warms up the grip of the steering
wheel
 Seat heaters
Warm up the seat upholstery
 Seat ventilators
Maintain good airflow on the seat
upholstery by sucking air into the
seats
Press the “MENU” button on the
Remote Touch and select “Climate”
to display the air conditioning con-
trol screen. Then, select on the
sub menu ( P.279) to display the
heated steering wheel/seat heat-
ers/seat ventilators control screen.
WARNING
■To prevent minor burn injuries
Care should be taken if anyone in the fol-
lowing categories comes in contact with
the steering wheel or seats when the
heater is on:
●Babies, small children, the elderly, the
sick and the phys ically challenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alcohol or
drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
NOTICE
■To prevent damage to the seat heat-
ers and seat ventilators
Do not put heavy objects that have an
uneven surface on the seat and do not
stick sharp objects (n eedles, nails, etc.)
into the seat.
■To prevent battery discharge
Do not use the functions when the hybrid
system is off.
Heated steering wheel
A
B

2875-3. Using the air conditioning system and defogger
5
Interior features
■Seat heaters
Turns the seat heaters on/off
Each time the switch is pressed, the opera-
tion condition changes as follows.
AUTO (lit)  Hi (3 segments lit)  Mid
(2 segments lit)  Lo (1 segment lit) 
Off
The AUTO indicator and/or level indi-
cator illuminates during operation.
■Seat ventilators
Turns the seat ventilators on/off
Each time the switch is pressed, the opera-
tion condition changes as follows.
AUTO (lit)  Hi (3 segments lit)  Mid
(2 segments lit)  Lo (1 segment lit) 
Off
The AUTO indicator and/or level indi-
cator illuminates during operation.
■The seat ventilators can be used when
The power switch is in ON.
■Air conditioning system-linked control
mode
When the seat ventilator fan speed level is
Hi, the seat ventilator fan speed becomes
higher according to the fan speed of the air
conditioning system.
■Customization
Settings for the seat heaters and ventilators
can be changed. (Customizable features:
 P.443)
■Main display
Using the touchpad of the Remote
Touch, select the button on the screen.
to can be adjusted by perform-
ing the following operations.
Flick operation: Move the pointer to
the desired item and flick the touchpad
Seat heaters and ventilators
(front seats)
A
B
A
B
WARNING
■To prevent causes of overheating and
minor burn injuries
Observe the following precautions when
using the seat heaters.
●Do not cover the seat with a blanket or
cushion when using the seat heater.
●Do not use seat heater more than nec-
essary.
Control screen
AC

2905-4. Using the interior lights
5-4.Using the interior lights
Personal lights ( P.292)
Front interi or light (P.291)
Rear interior light ( P.291)
Footwell lights
• When the power switch is in ON, the footwell lights will turn on.
However, if the instrume nt panel light control switch is turned to minimum, the footwell
lights will turn off. ( P.80, 86)
• When the shift lever is in a position other th an P, the brightness of the footwell light will
reduce intensity.
Outside door handle lights
■Personal lights automatic on/off
●Illuminated entry system: The lights auto-
matically turn on/off according to power
switch mode, the presence of the elec-
tronic key, whether the doors are locked/
unlocked, and whether the doors are
opened/closed.
●If the interior lights remain on when the power switch is turned off, the lights will
go off automatically after 20 minutes.
■When front interior light and personal
lights do not respond as normal
●When water, dirt, etc., have adhered to
the lens surface
●When operated with a wet hand
●When wearing gloves, etc.
Interior lights list
Location of the interior lights
A
B
C
D
E

3015-6. Using the other interior features
5
Interior features
5-6.Using the other interior features
1To set the visor in the forward posi-
tion, flip it down.
2
To set the visor in the side position,
flip down, unhook, and swing it to
the side.
3
To use the side extender, place the
visor in the side position, then slide
it backward.
■When adjusting the inside rear view mir-
ror
Adjust the inside rear view mirror to enable
sufficient confirmation of the rear view with-
out interfering with the sun visor.
Slide the cover to open.
The light turns on when the cover is
opened.
■Vanity lights
If the vanity lights remain on when the
power switch is turned off, the lights will go
off automatically after 20 minutes.
The GPS clock’s time is automatically
adjusted by utilizing GPS time infor-
mation.
For details, refer to the “NAVIGA-
TION AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
Other interior features
Sun visors
NOTICE
■To prevent damage to the sun visors
When using the side extender, do not
swing the visor to the front.
Vanity mirrors
NOTICE
■To prevent 12-volt battery discharge
Do not leave the vanity lights on for
extended periods while the hybrid sys-
tem is off.
Clock

3025-6. Using the other interior features
Please use a power supply for elec-
tronic goods that use less than 12
VDC/10 A (power consumption of
120 W).
When using electronic goods, make
sure that the power consumption of all
the connected power outlets is less
than 120 W.
Front
Press down the lid to open it.
Rear
Open the lid.
■The power outlet can be used when
The power switch is in ACC or ON.
The USB charging ports are used to
supply 2.1 A of electricity at 5 V to
external devices.
The USB charging ports are for
Power outlet
NOTICE
■When power outlet is not in use
To avoid damaging the power outlet,
close the power outlet lid when the
power outlet is not in use.
Foreign objects or li quids that enter the
power outlet may cause a short circuit.
■To prevent 12-volt battery discharge
Do not use the power outlet longer than
necessary when the hy brid system is off.
■To prevent incorrect operation of the
vehicle
When turning the powe r switch off, make
sure to disconnect accessories designed
for charging, such as portable chargers,
power banks, etc. from the power outlets.
If such an accessory is left connected, the
following may occur:
●The doors will not be able to be locked.
●The opening screen will be displayed
on the multi-information display.
●The interior lights, instrument panel
lights, etc. will illuminate.
USB charging ports