fuel LEXUS UX250H 2019 User Guide

661-4. Hybrid system
*: AWD models only
■Running out of fuel
When the vehicle has run out of fuel and the
hybrid system cannot be started, refuel the
vehicle with at least enough gasoline to
make the low fuel level warning light
(  P.390) go off. If th ere is only a small
amount of fuel, the hybrid system may not
be able to start. (The standard amount of
fuel is about 1.8 gal. [7.0 L, 1.5 Imp.gal.],
when the vehicle is on a level surface. This
value may vary when the vehicle is on a
slope. Add extra fuel when the vehicle is
inclined.)
■Electromagnetic waves
●High voltage parts and cables on hybrid
vehicles incorporate electromagnetic
shielding, and ther efore emit approxi-
mately the same amount of electromag-
netic waves as conventional gasoline
powered vehicles or home electronic
appliances.
●Your vehicle may cause sound interfer-
ence in some third party-produced radio
parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has a
limited service life. The lifespan of the
hybrid battery (traction battery) can
change in accordance with driving style and
driving conditions.
WARNING
■High voltage precautions
This vehicle has high voltage DC and AC
systems as well as a 12-volt system. DC
and AC high voltage is very dangerous
and can cause severe burns and electric
shock that may result in death or serious
injury.
●Never touch, disassemble, remove or
replace the high voltage parts, cables
or their connectors.
●The hybrid system will become hot
after starting as the system uses high
voltage. Be careful of both the high
voltage and the high temperature, and
always obey the warning labels
attached to the vehicle.
●Never try to open the service plug
access hole located underneath the
rear seats. The service plug is used
only when the vehicle is serviced and is
subject to high voltage.
■Road accident cautions
Observe the following precautions to
reduce the risk of death or serious injury:
●Pull your vehicle off the road, shift the
shift lever to P, apply the parking brake,
and turn the hybrid system off.
●Do not touch the high voltage parts,
cables and connectors.
●If electric wires are exposed inside or
outside your vehicle, an electric shock
may occur. Never touch exposed elec-
tric wires.
●If a fluid leak occurs, do not touch the
fluid as it may be st rong alkaline elec-
trolyte from the hybrid battery (trac-
tion battery). If it comes into contact
with your skin or eyes, wash it off
immediately with a large amount of
water or, if possible, boric acid solu-
tion. Seek immediate medical atten-
tion.

671-4. Hybrid system
1
For safety and security
There is an air intake vent under the
right side of the rear seat for the pur-
pose of cooling the hybrid battery
(traction battery). If the vent becomes
blocked, the hybrid battery (traction
WARNING
●If a fire occurs in the hybrid vehicle,
leave the vehicle as soon as possible.
Never use a fire extinguisher that is not
meant for electric fires. Using even a
small amount of water may be danger-
ous.
●If your vehicle needs to be towed, do
so with front wheels (2WD models) or
four wheels (AWD models) raised. If
the wheels connected to the electric
motor (traction motor) are on the
ground when towing, the motor may
continue to generate electricity. This
may cause a fire. ( P.381)
●Carefully inspect the ground under the
vehicle. If you find that liquid has
leaked onto the ground, the fuel sys-
tem may have been damaged. Leave
the vehicle as soon as possible.
■Hybrid battery (traction battery)
●Never resell, hand over or modify the
hybrid battery. To prevent accidents,
hybrid batteries that have been
removed from a disposed vehicle are
collected through Lexus dealers. Do
not dispose of the battery yourself.
Unless the battery is properly collected,
the following may occur, resulting in
death or serious injury:
• The hybrid battery may be illegally dis- posed of or dumped, and it is hazard-
ous to the environment or someone
may touch a high voltage part, result-
ing in an electric shock.
• The hybrid battery is intended to be used exclusively with your hybrid vehi-
cle. If the hybrid battery is used outside
of your vehicle or modified in any way,
accidents such as electric shock, heat
generation, smoke generation, an
explosion and electrolyte leakage may
occur.
When reselling or handing over your
vehicle, the possibility of an accident is
extremely high because the person
receiving the vehicle may not be aware
of these dangers.
●If your vehicle is disposed of without
the hybrid battery having been
removed, there is a danger of serious
electric shock if hi gh voltage parts,
cables and their connectors are
touched. In the event that your vehicle
must be disposed of, the hybrid battery
must be disposed of by your Lexus
dealer or a qualified service shop. If
the hybrid battery is not disposed of
properly, it may cause electric shock
that can result in death or serious
injury.
NOTICE
■Hybrid battery (traction battery)
Do not carry large amounts of water
such as water cooler bottles in the vehi-
cle. If water spills onto the hybrid battery
(traction battery), the battery may be
damaged. Have the vehicle inspected by
your Lexus dealer.
Hybrid battery (traction bat-
tery) air intake vent

681-4. Hybrid system
battery) may overheat, leading to a
reduction in hybrid battery (traction
battery) output.
When a certain level of impact is
detected by the impact sensor, the
emergency shut off system blocks the
high voltage current and stops the fuel
pump to minimize the risk of electrocu-
tion and fuel leakage. If the emergency
shut off system activates, your vehicle
will not restart. To restart the hybrid
system, contact your Lexus dealer.
A message is automatically displayed when a malfunction occurs in the
hybrid system or an improper opera-
tion is attempted.
If a warning message is shown on the
multi-information display, read the
message and follow the instructions.
■If a warning light comes on, a warning
message is displayed, or the 12-volt bat-
tery is disconnected
The hybrid system may not start. In this
case, try to start the system again. If the
“READY” indicator does not come on, con-
tact your Lexus dealer.
NOTICE
■Hybrid battery (traction battery) air
intake vent
●Make sure not to block the air intake
vent with anything, such as a seat
cover, luggage or carpet. The hybrid
battery (traction battery) may over-
heat, leading to poor fuel economy.
●Clean the air intake vent regularly to
prevent the hybrid battery (traction
battery) from overheating.
●Do not get water or foreign materials
in the air intake vent as this may cause
a short circuit and damage the hybrid
battery (traction battery).
●A filter is installed to the air intake vent.
When the filter remains noticeably
dirty even after cleaning the air intake
vent, filter cleaning or replacement is
recommended. When cleaning or
replacing the filter, contact your Lexus
dealer.
Refer to P.365 for details on how to
clean the filter.
Emergency shut off system
Hybrid warning message

752-1. Instrument cluster
2
Vehicle status information and indicators
Warning lights inform the driver of mal-
functions in the indicated vehicle’s sys-
tems.
Warning lights
(U.S.A.)
Brake system warning light*1
(  P.386)
(red)
(Canada)
Brake system warning light*1
(  P.386)
Charging system warning
light
*2 (  P.386)
Low engine oil pressure warn-
ing light
*2 (  P.386)
(U.S.A.) Malfunction indicator lamp
*1
(  P.387)
(Canada) Malfunction indicator lamp
*1
(  P.387)
High coolant temperature
warning light
*2 (  P.387)
Tire pressure warning light
*1
(  P.387)
(yellow)
Brake system warning light*1
(  P.387)
SRS warning light
*1 (  P.388)
(U.S.A.) ABS warning light
*1 (
 P.388)
(Canada) ABS warning light
*1 (
 P.388)
(red)
Electric power st eering system
warning light
*1 (  P.388)
(yellow)
Electric power steering system
warning light
*1 ( P.388)
Slip indicator
*1 (  P.388)
(Flashes)
(U.S.A.)
Parking brake indicator
(  P.389)
(Flashes)
(Canada)
Parking brake indicator
(  P.389)
(Flashes)
Brake hold operated indicator*1
(  P.389)
(Flashes)
Intuitive parking assist OFF indi-
cator (if equipped) ( P.389)
(Flashes)
RCTA OFF indicator (if
equipped) ( P.389)
PKSB OFF indicator
*1 (if
equipped) ( P.390)
Low fuel level warning light
(  P.390)
Driver’s and front passenger’s
seat belt re minder light
(  P.390)
Rear passengers’ seat belt
reminder lights
*2 (  P.391)
Brake Override System warn-
ing light/Drive-Start Control
warning light/PKSB warning
light
*2 (  P.391)
(orange)
LTA indicator*2 ( P.391)
(Flashes or
illuminates)PCS warning light*1 (  P.392)

782-1. Instrument cluster
■Locations of gauges and meters
The units of measure may differ depending on the intended destination of the vehicle.
Multi-information display
Presents the driver with a variety of vehicle data ( P.87)
Displays warning messages if a malfunction occurs (P.395)
Outside temperature
Displays the outside temperature within the range of -40°F (-40°C) to 122°F (50°C)
Low outside temperature indicator comes on wh en the ambient temperature is 37°F (3°C)
or lower
Speedometer
Hybrid System Indicator/tachometer
Displays hybrid system outp ut or regeneration level (P.79)
This display changes to a tachometer depending on the driving mode, and can be set to
show the tachometer in any driving mode on the settings display. (P.91, 255)
Clock
Time displayed is linked to the analog clock on the center panel. (P.301)
Engine coolant temperature gauge
Displays the engine coolant temperature
Fuel gauge
Displays the quantity of fuel remaining in the tank
Gauges and meters (except F SPORT models)
Meter display
A
B
C
D
E
F
G

792-1. Instrument cluster
2
Vehicle status information and indicators
Shift position/shift range (P.167)
Odometer and trip meter display ( P.80)
■Hybrid System Indicator
Charge area
Shows regeneration* status.
Regenerated energy will be used to charge
the hybrid battery (traction battery).
Hybrid Eco area
Shows that gasoline engine power is not
being used very often.
The gasoline engine will automatically stop
and restart under various conditions.
Eco area
Shows that the vehicle is being driven in an
Eco-friendly manner.
By keeping the bar display within Eco area,
more Eco-friendly driv ing can be achieved.
Power area
Shows that an Eco-friendly driving range is
being exceeded (durin g full power driving
etc.)
*: When used in this manual, regeneration refers to the conversion of energy cre-
ated by the movement of the vehicle into
electrical energy.
■Engine speed
On hybrid vehicles, engine speed is pre-
cisely controlled in order to help improve
fuel efficiency and reduce exhaust emis- sions etc.
There are times when the engine speed that
is displayed may differ even when vehicle
operation and driving
conditions are the
same.
■Hybrid System Indicator is displayed
when
The Hybrid System Indicator is displayed in
the following situations:
●The shift lever is in D or S.
●The driving mode is other than Sport
mode.
■Outside temperature display
●In the following situations, the correct
outside temperature may not be dis-
played, or the display may take longer
than normal to change:
• When stopped, or driving at low speeds (less than 12 mph [20 km/h])
• When the outside temperature has
changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)
●When “--” or “E” is displayed, the system
may be malfunctioning. Take your vehicle
to your Lexus dealer.
■Speed unit setting for the speedometer
When the speed unit has been changed
from the default setting, the vehicle speed in
the default unit is also displayed in the
meter.
■Liquid crystal display
 P.88
■Customization
The gauges and meters can be customized
on of the multi-information display.
H
I
A
B
C
D

832-1. Instrument cluster
2
Vehicle status information and indicators
Time displayed is linked to the analog clock on the center panel. (P.301)
Fuel gauge
Displays the quantity of fuel remaining in the tank
Multi-information display
Presents the driver with a variety of vehicle data ( P.87)
Displays warning messages if a malfunction occurs (P.395)
Odometer and trip meter display ( P.86)
When the main meter is in the side position
The units of measure may differ depending on the intended destination of the vehicle.
Multi-information display
Presents the driver with a variety of vehicle data ( P.87)
Displays warning messages if a malfunction occurs (P.395)
Outside temperature
Displays the outside temperature within the range of -40°F (-40°C) to 122°F (50°C)
Low outside temperature indicator comes on wh en the ambient temperature is 37°F (3°C)
or lower
Clock
Time displayed is linked to the analog clock on the center panel. (P.301)
Speedometer
Hybrid System Indicator/tachometer
Displays hybrid system outp ut or regeneration level (P.84)
This display changes to a tachometer depending on the driving mode, and can be set to
show the tachometer in any driving mode on the settings display. (P.91, 255)
• Rev indicator
G
H
I
A
B
C
D
E

842-1. Instrument cluster
•Rev peak
Shift position/shift range (P.167)
Odometer and trip meter display ( P.86)
Fuel gauge
Displays the quantity of fuel remaining in the tank
Engine coolant temperature gauge
Displays the engine coolant temperature
■Hybrid System Indicator
Charge area
Shows regeneration* status.
Regenerated energy will be used to charge
the hybrid battery (traction battery).
Hybrid Eco area
Shows that gasoline engine power is not
being used very often.
The gasoline engine will automatically stop
and restart under various conditions.
Eco area
Shows that the vehicle is being driven in an
Eco-friendly manner.
By keeping the bar display within Eco area,
more Eco-friendly driv ing can be achieved.
Power area
Shows that an Eco-friendly driving range is
being exceeded (durin g full power driving
etc.)
*: When used in this manual, regeneration refers to the conversion of energy cre- ated by the movement of the vehicle into
electrical energy.
■Rev indicator
When the engine speed reaches a set
speed or the red zone, a ring-shaped
indicator ( ) will be displayed on the
tachometer.
The indicators will be displayed in amber
when the engine speed reaches a set
speed, and in red when the engine speed
reaches the red zone.
The engine speed at which the rev indica-
tor will begin to be displayed can be set on
of the multi-information display.
(  P.87)
■Rev peak
When the engine speed reaches or
exceeds 4000 rpm, an afterimage of
the tachometer will be displayed at the
highest engine speed for approxi-
mately 1 second.
F
G
H
I
A
B
C
D
A

852-1. Instrument cluster
2
Vehicle status information and indicators
■Engine speed
On hybrid vehicles, engine speed is pre-
cisely controlled in order to help improve
fuel efficiency and reduce exhaust emis-
sions etc.
There are times when the engine speed that
is displayed may differ even when vehicle
operation and driving conditions are the
same.
■Hybrid System Indicator is displayed
when
The Hybrid System Indicator is displayed in
the following situations:
●The shift lever is in D or S.
●The driving mode is other than Sport
mode.
■Outside temperature display
●In the following situations, the correct
outside temperature may not be dis-
played, or the display may take longer
than normal to change:
• When stopped, or driving at low speeds (less than 12 mph [20 km/h])
• When the outside temperature has changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)
●When “--” or “E” is displayed, the system
may be malfunctioning. Take your vehicle
to your Lexus dealer.
■Speed unit setting for the speedometer
When the speed unit has been changed
from the default setting, the vehicle speed in
the default unit is also displayed in the
meter.
■Liquid crystal display
 P.88
■Customization
The gauges and meters can be customized
on of the multi-information display.
(  P.435)
WARNING
■The information display at low tem-
peratures
Allow the interior of the vehicle to warm
up before using the liquid crystal infor-
mation display. At extremely low tem-
peratures, the information display
monitor may respond slowly, and display
changes may be delayed.
For example, there is a lag between the
driver’s shifting and the new gear number
appearing on the display. This lag could
cause the driver to downshift again,
causing rapid and excessive engine brak-
ing and possibly an accident resulting in
death or injury.
NOTICE
■To prevent damage to the engine and
its components
●Do not let the indicator of the tachom-
eter enter the red zone, which indi-
cates the maximum engine speed.
●The engine may be overheating if the
engine coolant temperature gauge is
in the red zone (H). In this case, imme-
diately stop the vehicle in a safe place,
and check the engine after it has
cooled completely. ( P.410)

892-1. Instrument cluster
2
Vehicle status information and indicators
■Display items (F SPORT models)
When the main meter is in the cen-
ter position
Press or of the meter control
switches to display the following items:
 Drive information 1
 Drive information 2
 Tire pressure
 Units
 Display off
When the main meter is in the side
position
Press or of the meter control
switches and select . Then press
or to display the following items:
 Drive information 1
 Drive information 2
 Energy monitor ( P.97)
 G-force
 Tire pressure
 Display off
■Drive information 1/Drive infor-
mation 2
2 of the following drive information can
be displayed in each screen.
Displayed items can be changed on . ( P.87)
Use the displayed values as a reference
only.
 Current fuel consumption
Displays instantaneous current fuel con-
sumption
Average fuel economy
After reset: Displays average fuel con-
sumption since the display was reset
*1
After start: Displays average fuel con-
sumption since the hybrid system was
started
After refuel: Displays average fuel con-
sumption since refuel
Average vehicle speed
After reset: Displays average vehicle
speed since the display was reset
*1
After start: Displays average vehicle speed
since the hybrid system was started
Driven distance
Displays the distance driven since the
hybrid system was started
 Elapsed time
After reset: Displays elapsed time since the
display was reset
*1
After start: Displays elapsed time since the
hybrid system was started
 Driving range
Displays driving range with remaining
fuel
*2, 3
Other
No item
*1: To reset, display the desired item and
press and hold “OK” of the meter con-
trol switches.
*2: This distance is computed based on your average fuel consumption. As a
result, the actual distance that can be
driven may differ from that displayed.
*3: When only a small amount of fuel is added to the tank, the display may not
be updated.
When refueling, turn the power switch
off. If the vehicle is refueled without
turning the power switch off, the display