warning LEXUS UX250H 2019 Manual Online

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)

1684-2. Driving procedures
( P.255)
■Restraining sudden start (Drive-Start
Control)
 P.153
While the power switch is in
ON and the brake pedal depressed*,
shift the shift lever while pushing the
shift release button on the shift knob. Shift the shift lever while push-
ing the shift release button on the shift
knob.
Shift the shift lever normally.
When shifting the shift lever between P
and D, make sure that the vehicle is com-
pletely stopped and the brake pedal is
depressed.
*: For the vehicle be able to be shifted from P, the brake pedal must be depressed
before the shift releas e button is pushed.
If the shift release button is pushed first,
the shift lock will not be released.
■Shift lock system
The shift lock system is a system to prevent
accidental operation of the shift lever in
starting.
The shift lever can be shifted from P only
when the power switch is in ON, the brake
pedal is depressed and the shift release but-
ton is pushed.
■If the shift lever cannot be shifted from P
First, check whether the brake pedal is
being depressed.
If the shift lever cannot be shifted even
though the brake pedal is depressed and
the shift release button is pushed, there may
be a problem with th e shift lock system.
Have the vehicle inspected by your Lexus
dealer immediately.
The following steps may be used as an
emergency measure to ensure that the shift
lever can be shifted.
Releasing the shift lock:
1
Press the parking brake switch to check
that the parking brake is set. ( P.172)
2
Turn the power switch off.
3
Depress the brake pedal.
4
Pry the cover up with a flathead screw-
driver or equivalent tool.
WARNING
■When driving on slippery road sur-
faces
Be careful of downshifting and sudden
acceleration, as this could result in the
vehicle skidding to the side or spinning.
NOTICE
■Hybrid battery (traction battery)
charge
If the shift lever is in N, the hybrid battery
(traction battery) will not be charged
even when the engine is running. There-
fore, if the vehicle is left with the shift
lever in N for a long period of time, the
hybrid battery (traction battery) will dis-
charge, and this may re sult in the vehicle
not being able to start.
Shifting the shift lever

1694-2. Driving procedures
4
Driving
To prevent damage to the cover, cover the
tip of the screwdriver with a rag.
5
Press the shift lock override button.
The shift lever can be shifted while the but-
ton is pressed
 P.255
To drive using temporary shift range
selection, operate the “-” or “+” paddle shift switch when driving with the shift
lever in D.
When the “-” paddle shift switch is
operated, the shift range switches to a
range that enables engine braking
force that is suitable to driving condi-
tions. When the “+” paddle shift switch
is operated, the shift range switches to
a range that is one range higher than
the current range.
Changing the shift range allows
restriction of the highest gear, prevent-
ing unnecessary upshifting and
enabling the level of engine braking
force to be selected.
1
Upshifting
2
Downshifting
The selected shift range, from D1 to D6,
will be displayed in the meter.
To return to normal D position driving, the
“+” paddle shift switch must be held down
for a period of time.
WARNING
■To prevent an accident when releas-
ing the shift lock
Before pressing the shift lock override
button, make sure to set the parking
brake and depress the brake pedal.
If the accelerator pe dal is accidentally
depressed instead of the brake pedal
when the shift lock override button is
pressed and the shift lever is shifted out
of P, the vehicle may suddenly start, pos-
sibly leading to an accident resulting in
death or serious injury.
Selecting the driving mode
Selecting shift ranges in the D
position (vehicles with paddle
shift switches)
Meter dis-
playFunction
D2 - D6
A gear in the range between D1 and the selected shift
range is automatically cho- sen depending on vehicle
speed and driving conditions
D1Setting the shift range at D1

1714-2. Driving procedures
4
Driving
■Downshifting restriction warning
buzzer
To help ensure safety and driving perfor-
mance, downshifting operation may some-
times be restricted. In some circumstances,
downshifting may not be possible even
when the shift lever or paddle shift switch (if
equipped) is operated. (A buzzer will sound
twice.)
The turn signal lever can be used to
show the following intentions of the
driver.
1 Right turn
2 Lane change to the right (move the
lever partway and release it)
The right hand signals will flash 3 times.
3Lane change to the left (move the
lever partway and release it)
The left hand signals will flash 3 times.
4Left turn
■Turn signals can be operated when
The power switch is in ON.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear
turn signal lights has not burned out.
Turn signal lever
Operating instructions

1744-2. Driving procedures
■If “Parking Brake Unavailable” or “EPB
Unavailable” is displayed on the multi-
information display
Operate the parking brake switch. If the
message does not disappear after operat-
ing the switch several times, the system may
be malfunctioning. Have the vehicle
inspected by your Lexus dealer.
■Parking brake operation sound
When the parking brake operates, a motor
sound (whirring sound) may be heard. This
does not indicate a malfunction.
■Parking brake indicator light
●Depending on the power switch mode,
the parking brake indi cator light will turn
on and stay on as described below:
ON: Comes on until the parking brake is
released.
Not in ON: Stays on for approximately 15
seconds.
●When the power switch is turned off with
the parking brake set, the parking brake
indicator light will stay on for about 15
seconds. This does not indicate a mal-
function.
■When the parking brake switch mal-
functions
Automatic mode (automatic brake setting
and releasing) will be turned on automati-
cally.
■Parking the vehicle
 P.152
■Parking brake engaged warning buzzer
A buzzer will sound if the vehicle is driven
with the parking brake engaged. “EPB
Applied” is displayed on the multi-informa-
tion display (with the vehicle reached a
speed of 3 mph [5 km/h]).
■If the brake system warning light comes
on
 P.386
■Usage in winter time
 P.263
WARNING
■When parking the vehicle
Do not leave a child in the vehicle alone.
The parking brake may be released unin-
tentionally and there is the danger of the
vehicle moving that may lead to an acci-
dent resulting in death or serious injury.
NOTICE
■When parking the vehicle
Before you leave the vehicle, shift the
shift lever to P, set the parking brake and
make sure that the vehicle does not
move.
■When the system malfunctions
Stop the vehicle in a safe place and
check the warning messages.
■When the parking brake cannot be
released due to a malfunction
Driving the vehicle with the parking
brake set will lead to brake components
overheating, which may affect braking
performance and increase brake wear.
Have the vehicle inspected by your
Lexus dealer immediately if this occurs.

1754-2. Driving procedures
4
Driving
Turns the brake hold system on
The brake hold standby indicator
comes on. While the system is holding the
brake, the brake hold operated indicator comes on.
■Brake hold system operating conditions
The brake hold system cannot be turned on
in the following conditions:
●The driver’s door is not closed.
●The driver is not wearing the seat belt.
●“Parking Brake Unavailable” or “EPB
Malfunction Visit Your Dealer” is dis-
played on the multi- information display.
If any of the conditions above are detected
when the brake hold system is enabled, the
system will turn off and the brake hold
standby indicator light will go off. In addi- tion, if any of the co
nditions are detected
while the system is holding the brake, a
warning buzzer will sound and a message
will be shown on the multi-information dis-
play. The parking brake will then be set
automatically.
■Brake hold function
●If the brake pedal is left released for a
period of about 3 mi nutes after the sys-
tem has started holding the brake, the
parking brake will be set automatically. In
this case, a warning buzzer sounds and a
message is shown on the multi-informa-
tion display.
●To turn the system off while the system is
holding the brake, firmly depress the
brake pedal and press the button again.
●The brake hold function may not hold the
vehicle when the vehicle is on a steep
incline. In this situation, it may be neces-
sary for the driver to apply the brakes. A
warning buzzer will sound and the multi-
information display will inform the driver
of this situation. If a warning message is
shown on the multi-information display,
read the message and follow the instruc-
tions.
■When the parking brake is set automati-
cally while the system is holding the
brakes
Perform any of the following operations to
release the parking brake.
●Depress the accelerator pedal. (The
parking brake will not be released auto-
matically if the seat belt is not fastened.)
●Operate the parking brake switch with
the brake pedal depressed.
Make sure that the pa rking brake indicator
light goes off. ( P.172)
■When an inspection at your Lexus
dealer is necessary
When the brake hold standby indicator
(green) does not illuminate even when the
brake hold switch is pressed with the brake
hold system operating conditions met, the
system may be malfun ctioning. Have the
vehicle inspected at your Lexus dealer.
Brake Hold
The brake hold system keeps the
brake applied when the shift lever is
in D, S or N with the system on and
the brake pedal has been
depressed to stop the vehicle. The
system releases the brake when the
accelerator pedal is depressed with
the shift lever in D or S to allow
smooth start off.
Enabling the system
A
B

1764-2. Driving procedures
■If “Brake Hold Fault Depress Brake to
Deactivate Visit Your Dealer” or “Brake
Hold Malfunction Visit Your Dealer” is
displayed on the multi-information dis-
play
The system may be malfunctioning. Have
the vehicle inspected by your Lexus dealer.
■Warning messages and buzzers
Warning messages and buzzers are used to
indicate a system malfunction or to inform
the driver of the need for caution. If a warn-
ing message is shown on the multi-informa-
tion display, read the message and follow
the instructions.
■If the brake hold operated indicator
flashes
 P.389
*: If equipped
Press the ASC switch.
The indicator on the switch will turn on.
Press the ASC switch again to turn the
ASC system off.
Even if the indicator is illuminated, when
the driving mode ( P.255) is set to Eco
drive mode or EV drive mode ( P.165) is
turned on, ASC system does not operate.
■Operating conditions
The ASC system operates when all of the
following conditions are met.
●EV drive mode ( P.165) is turned off
●The driving mode ( P.255) is set to
other than Eco drive mode
WARNING
■When the vehicle is on a steep incline
When using the brake hold system on a
steep incline, exercise caution. The brake
hold function may not hold the vehicle in
such a situation.
■When stopped on a slippery road
The system cannot stop the vehicle when
the gripping ability of the tires has been
exceeded. Do not use the system when
stopped on a slippery road.
NOTICE
■When parking the vehicle
The brake hold system is not designed
for use when parking the vehicle for a
long period of time. Turning the power
switch off while the system is holding the
brake may release the brake, which
would cause the vehicle to move. When
operating the power switch, depress the
brake pedal, shift the shift lever to P and
set the parking brake.
ASC (Active Sound Con-
trol)*
The ASC system directs certain
sounds from the front of the cabin
to the vehicle interior, and harmo-
nizes these sounds with the actual
sound of the engine and exhaust in
order to allow the driver to feel
acceleration and the state of the
engine more strongly.
Turning ASC system on

1804-3. Operating the lights and wipers
1Press the Automatic High Beam
switch.
2
Turn the headlight switch to the
or position.
The Automatic High Beam indicator will come on when the system is operating.
■Conditions to turn the high beams on/off
automatically
●When all of the follo
wing conditions are
met, the high beams will be turned on
automatically (after approximately 1 sec-
ond):
• The vehicle speed is approximately 21 mph (34 km/h) or more.
• The area ahead of the vehicle is dark.
• There are no vehicles ahead with head- lights or tail lights turned on.
• There are few streetlights on the road ahead.
●If any of the following conditions are met,
the high beams will turn off automatically:
• The vehicle speed is below approxi-
mately 17 mph (27 km/h).
• The area ahead of the vehicle is not dark.
• Vehicles ahead have their headlights or
tail lights turned on.
• There are many streetlights on the road ahead.
■Front camera detection information
●The high beams may not be automatically
turned off in the following situations:
• When a vehicle suddenly appears from around a curve
• When the vehicle is cut in front of by
another vehicle
• When vehicles ahead cannot be detected due to repeated curves, road
dividers or roadside trees
• When vehicles ahead appear in a far- away lane on a wide road
• When the lights of vehicles ahead are not
on
●The high beams may be turned off if a
vehicle ahead that is using fog lights with-
Automatic High Beam
The Automatic High Beam uses a
front camera located behind the
upper portion of the windshield to
assess the brightness of the lights of
vehicles ahead, streetlights, etc.,
and automatically turns the high
beams on or off as necessary.
WARNING
■Limitations of the Automatic High
Beam
Do not overly rely on the Automatic High
Beam. Always drive sa fely, taking care to
observe your surroundings and turning
the high beams on or off manually if nec-
essary.
■To prevent incorrect operation of the
Automatic High Beam system
Do not overload the vehicle.
Activating the Automatic High
Beam

1864-3. Operating the lights and wipers
time the lever is pulled.
■The windshield wipers and washer can
be operated when
The power switch is in ON.
■Effects of vehicle speed on wiper opera-
tion (vehicles with rain-sensing wind-
shield wipers)
Vehicle speed affects the Intermittent wiper
interval.
■Raindrop sensor (vehicles with rain-
sensing windshield wipers)
●The raindrop sensor judges the amount
of raindrops.
An optical sensor is adopted. It may not
operate properly when sunlight from the
rising or setting of the sun intermittently
strikes the windshield, or if bugs, etc. are
present on the windshield.
●If the wiper switch is turned to the AUTO
position while the power switch is in ON,
the wipers will operate once to show that
AUTO mode is activated.
●If the temperature of the raindrop sensor
is 194°F (90°C) or higher, or 5°F (-15°C)
or lower, automatic operation may not
occur. In this case, operate the wipers in
any mode other than AUTO mode.
■If no windshield washer fluid sprays
Check that the washer nozzles are not
blocked, if there is washer fluid in the
washer fluid tank.
When the windshield wipers are not
being used, they retract to below the
hood. To enable the windshield wipers
to be lifted when parking in cold condi-
tions or when replacing a windshield
wiper insert, change the rest position of
WARNING
■Caution regarding the use of wind-
shield wipers in AUTO mode (vehi-
cles with rain-sensing windshield
wipers)
The windshield wipers may operate
unexpectedly if the sensor is touched or
the windshield is subject to vibration in
AUTO mode. Take care that your fingers,
etc. do not become caught in the wind-
shield wipers.
■Caution regarding the use of washer
fluid
When it is cold, do not use the washer
fluid until the windshield becomes warm.
The fluid may freeze on the windshield
and cause low visibility. This may lead to
an accident, resulting in death or serious
injury.
NOTICE
■When the washer fluid tank is empty
Do not operate the switch continually as
the washer fluid pump may overheat.
■When a nozzle becomes blocked
In this case, contact your Lexus dealer.
Do not try to clear it with a pin or other
object. The nozzle will be damaged.
■To prevent 12-volt battery discharge
Do not leave the wipers on longer than
necessary when the hy brid system is off.
Changing the windshield wiper
rest position/Lifting the wind-
shield wipers

1904-4. Refueling
4-4.Refueling
Turn the power switch off and
ensure that all the doors and win-
dows are closed.
 Confirm the type of fuel.
■Fuel types
 P.423
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi-
cle has a fuel tank opening that only accom-
modates the special nozzle on unleaded
fuel pumps.
Opening the fuel tank cap
The fuel tank of your vehicle has a
special structure, which requires a
reduction in fuel tank pressure
before refueling. After the opener
switch has been pressed, it will take
several seconds until the vehicle is
ready for refueling.
Before refueling the vehicle
WARNING
■When refueling the vehicle
Observe the following precautions while
refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before
opening the fuel door, touch an
unpainted metal surface to discharge
any static electricity. It is important to
discharge static electricity before refu-
eling because sparks resulting from
static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on the fuel tank
cap and turn it slowly to remove it.
A whooshing sound may be heard
when the fuel tank cap is loosened.
Wait until the sound cannot be heard
before fully removing the cap. In hot
weather, pressurized fuel may spray
out of the filler neck and cause injury.
●Do not allow anyone that has not dis-
charged static electricity from their
body to come close to an open fuel
tank.
●Do not inhale vaporized fuel.
Fuel contains substances that are
harmful if inhaled.
●Do not smoke while refueling the vehi-
cle.
Doing so may cause the fuel to ignite
and cause a fire.
●Do not return to the vehicle or touch
any person or object that is statically
charged. This may cause static elec-
tricity to build up, resulting in a possible
ignition hazard.
■When refueling
Observe the following precautions to
prevent fuel overflowing from the fuel
tank:
●Securely insert the fuel nozzle into the
fuel filler neck.
●Stop filling the tank after the fuel noz-
zle automatically clicks off.
●Do not top off the fuel tank.