engine LEXUS UX 2023 Owners Manual

11
UX250h_QG_OM76642U_(U)
Charge area
Shows regeneration
* status. Regenerated energy will be used to charge the hybrid
battery (traction battery).
*: When used in this manual, regeneration refers to the conversion of energy created by
the movement of the vehicle into electrical energy.
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 driving can be achieved.
Power area
Shows that an Eco-friendly driving range is being exceeded (during full power driving
etc.)
Hybrid System
Your vehicle is a Hybrid Electric Vehicle. It has characteristics different from conventional
vehicles. Be sure you are closely familiar with the characteristics of your vehicle, and
operate it with care.
The hybrid system combines the use of a gaso line engine and an electric motor (traction
motor) according to driving conditions, improv ing fuel efficiency and reducing exhaust
emissions.
For details, refer to the “OWNER’S MANUAL”.
Hybrid System Indicator
 Except F SPORT models F SPORT models
A
B
C
D

12
UX250h_QG_OM76642U_(U)
If the shift lever is in N, the hybrid battery (traction battery) will not be charged even when
the engine is running. Therefore, if the vehicle is left with the shift lever in N for a certain
amount of time, the hybrid battery (traction battery) will discharge, and this may result in the
vehicle not being able to start.
In the following situations, kinetic energy is converted to electric energy and deceleration
force can be obtained in conjunction with the recharging of the hybrid battery (traction bat-
tery).
● The accelerator pedal is released while driving with the shift lever in D or S.
● The brake pedal is depressed while driving with the shift lever in D or S.
There may be no engine sound or vibration even though the vehicle is able to move with the
“READY” indicator is illuminated. For safety, apply the parking brake and make sure to shift
the shift lever to P when parked.
The following sounds or vibrations may occur when the hybrid system is operating and are
not a malfunction:
● Motor sounds may be heard from the engine compartment.
● Sounds may be heard from the hybrid battery (traction battery) behind the rear seats
when the hybrid system starts or stops.
● Relay operating sounds such as a snap or so ft clank will be emitted from the hybrid bat-
tery (traction battery), behind the rear seats, when the hybrid system is started or
stopped.
● Sounds from the hybrid system may be heard when the back door is open.
● Sounds may be heard from the hybrid transmission when the gasoline engine starts or
stops, when driving at low speeds, or during idling.
● Engine sounds may be heard when accelerating sharply.
● Sounds may be heard due to regenerative braking when the brake pedal is depressed or
as the accelerator pedal is released.
● Vibration may be felt when the gasoline engine starts or stops.
● Cooling fan sounds may be heard from the air intake vent under the right side of the rear
seat.
Hybrid battery (traction battery) charge
Regenerative braking
Sounds and vibrations specific to a Hybrid Electric Vehicle

22
UX250h_QG_OM76642U_(U)
Turns EV drive mode on/off
When EV drive mode is turned on, the EV
drive mode indicator will come on. Pressing
the switch when in EV drive mode will
return the vehicle to normal driving (using
the gasoline engine and electric motor
[traction motor]).
EV Drive Mode
In EV drive mode, electric power is supplied by the hybrid battery (traction battery), and
only the electric motor (traction motor) is used to drive the vehicle.

24
UX250h_QG_OM76642U_(U)
*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 enginebraking force.
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, th e shift range switches to a range that enables
engine braking force that is su itable to driving conditions. Wh en the “+” paddle shift switch is
operated, the shift range switches to a range that is one range higher than the current range.
1Upshifting
2Downshifting
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.
Shift position purpose and functions
Shift positionObjective or function
PParking the vehicle/starting the hybrid system
RReversing
NNeutral (Condition in which the power is not transmitted)
DNormal driving*1
SS mode driving*2 (  P.25)
Selecting shift ranges in the D position (vehicles with paddle shift
switches)
Meter displayFunction
D2 - D6
A gear in the range between D1 and the selected shift range is
automatically chosen depending on vehicle speed and driving
conditions
D1Setting the shift range at D1

25
UX250h_QG_OM76642U_(U)
To enter S mode, shift the shift lever to S. Shift ranges can be selected by operating the shift
lever or paddle shift switches (if equipped).
1Upshifting
2Downshifting
The selected shift range, from S1 to S6, will
be displayed in the meter.
The initial shift range in S mode is 4.
Changing shift ranges in the S position
■Shift ranges and their functions
● You can choose from 6 levels of accelerating force and engine braking force.
● A lower shift range will provide greater accelerating force and engine braking force
than a higher shift range, and the en gine revolutions will also increase.

35
UX250h_QG_OM76642U_(U)
■Hybrid System Indicator
Charge area
Hybrid Eco area
Eco area
Power area
Displayed content is the same as that
displayed on the meter (Hybrid System
Indicator). For details, refer to P.11.
■Tachometer
Displays the engine speed in revolutions per minute.
Hybrid System Indicator/tachometer display area
A
B
C
D
The head-up display may seem dark or hard to see when viewed through sunglasses,
especially polarized sunglasses. Adjust the brightness of the head-up display or remove
your sunglasses.

43
UX250h_QG_OM76642U_(U)
■Displaying procedure
Multi-information display
Press or of the meter control switches and select , and then press or to
select the energy monitor display.
 Center Display
1Select on the main menu.
2Select “Energy flow”.
■Reading the display
The arrows will appear in accordance with the energy flow. When there is no energy flow,
arrows will not be displayed.
The color of the arrows will change as follows
Blue: When the hybrid battery (traction battery) is regenerated or charged.
Yellow
*1/Orange*2: When the hybrid battery (traction battery) is in use.
Red: When the gasoline engine is in use.
*1: Multi-information display
*2:Center Display
 Multi-information display
The image shows all the arrows as an exam-
ple. The actual display will vary depending
on conditions.
Gasoline engine
Hybrid battery (traction battery)
Tires
Energy Monitor/Consumption Screen
The status of your hybrid system and fuel consumption information can be displayed on
the multi-information display and Center Di splay. For details, refer to the “OWNER’S
MANUAL”.
Energy monitor
A
B
C

44
UX250h_QG_OM76642U_(U)
Center Display
The image shows all the arrows as an exam-
ple. The actual display will vary depending
on conditions.
Gasoline engine
Electric motor (traction motor)
Hybrid battery (traction battery)
Front tires
■Display procedure
1
Select on the main menu.
2Select “Trip information”.
3Select “Current”.
■Display
Resetting the history data
Fuel consumption in the past 15 min-
utes
Current fuel consumption
Average vehicle speed since the hybrid
system was started.
Trip range
Elapsed time since the hybrid system
was started.
A
B
C
D
Current screen
A
B
C
D
E
F

What to do if...
83
UX250h_QG_OM76642U_(U)
List of Warning/Indicator Lights
Immediately stop the vehicle in a safe place and contact your Lexus dealer. Continu-
ing to drive the vehicle may be dangerous.
(U.S.A.)
Brake system warning light
(Red)
(Canada)
Immediately stop the vehicle in a safe place and contact your Lexus dealer.
Low engine oil pressure warn-
ing light(U.S.A.)Malfunction
indicator lamp
Charging system warning light(Canada)
Have the vehicle inspected by your Lexus dealer immediately.
SRS warning light
(Flashes)
Intuitive parking assist OFF
indicator (if equipped)
(U.S.A.)
ABS warning light(Flashes)
Brake hold operated indicator
(Canada)
(Yellow)
Brake system warning light
(Red or yellow)
Electric power steering
system warning light
(Flashes)
RCTA OFF indicator (if
equipped)
(Flashes or
illuminates)PCS warning light
(Flashes)
PKSB OFF indicator (if
equipped)
Slip indicator(Blinking and then continu-
ously on)
Tire pressure warning light
For further information, refer to the “OWNER’S MANUAL”.