seat LEXUS UX250H 2019 Service Manual

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)

103
3
3
Before driving
Before driving
3-1. Key informationKeys ................................................. 104
3-2. Opening, closing and locking the doors
Side doors ..................................... 108
Back door ....................................... 112
Smart access system with push- button start ................................. 124
3-3. Adjusting the seats Front seats ...................................... 131
Rear seats ...................................... 132
Driving position memory ........ 133
Head restraints............................ 136
3-4. Adjusting the steering wheel and mirrors
Steering wheel............................. 139
Inside rear view mirror............. 140
Outside rear view mirrors ...... 142
3-5. Opening, closing the windows and moon roof
Power windows........................... 145
Moon roof ..................................... 147

1103-2. Opening, closing and locking the doors
■If the smart access system with push-
button start or the wireless remote con-
trol does not operate properly
●Use the mechanical key to lock and
unlock the doors. (P.403)
●Replace the key battery with a new one if
it is depleted. (P.368)
■If the 12-volt battery is discharged
The doors cannot be locked and unlocked
using the smart access system with push-
button start or wireless remote control.
Lock or unlock the doors using the
mechanical key. ( P.403)
■Customization
Settings (e.g. unlocking function using a
key) can be changed. (Customizable fea-
tures: P.437)
■Door lock switches (to
lock/unlock)
1
Locks all the doors
2
Unlocks all the doors
■Inside lock buttons (to lock)
Push down the inside lock button to
lock the door.
■Inside door handles (to unlock)
For the front doors
Pull the handle to unlock and open the
door.
When the door is unlo cked, the inside lock
button will pop up.
For the rear doors
Pull the handle to unlock the door. Pull
the handle a second time to open the
door.
WARNING
■To prevent an accident
Observe the following precautions while
driving the vehicle.
Failure to do so may result in a door
opening and an occupant falling out,
resulting in death or serious injury.
●Ensure that all doors are properly
closed and locked.
●Do not pull the inside handle of the
doors while driving.
Be especially careful for the front
doors, as the doors may be opened
even if the inside lock buttons are in
locked position.
●Set the rear door ch ild-protector locks
when children are seated in the rear
seats.
■When opening or closing a door
Check the surroundings of the vehicle
such as whether the vehicle is on an
incline, whether ther e is enough space
for a door to open and whether a strong
wind is blowing. When opening or clos-
ing the door, hold the door handle tightly
to prepare for any unpredictable move-
ment.
Unlocking and locking the doors
from the inside

1313-3. Adjusting the seats
3
Before driving
3-3.Adjusting the seats
Seat position adjustment switch
Seat cushion (front) angle adjust-
ment switch
Seatback angle adjustment switch
Vertical height adjustment switch
Lumbar support adjustment switch
(for driver’s side)
■When adjusting the seat
●Make sure that any surrounding passen-
gers or objects are not contact the seat.
●Take care when adjusting the seat so that
the head restraint does not touch the ceil-
ing.
■Power easy access system (if equipped)
The driver’s seat and steering wheel move
in accordance with power switch mode and the driver’s seat belt condition. (
P.133)
■Jam protection function (vehicles with
driving position memory)
While the driving position is recalling, if an
object is stuck either in front of or behind
the front seat, the front seat will stop and
then move in the opposite direction slightly.
When the jam protection function operates,
the seat stops at a po sition other than the
set seat position. Chec k the seat position.Front seats
The seats can be adjusted (longitu-
dinally, vertically, etc.). Adjust the
seat to ensure the correct driving
posture.
Adjustment procedure
A
B
C
D
E
WARNING
■When adjusting the seat position
●Take care when adjusting the seat
position to ensure that other passen-
gers are not injured by the moving
seat.
●Do not put your hands under the seat
or near the moving parts to avoid
injury.
Fingers or hands may become
jammed in the seat mechanism.
●Make sure to leave enough space
around the feet so they do not get
stuck.
■Seat adjustment
To reduce the risk of sliding under the lap
belt during a collision, do not recline the
seat more than necessary.
If the seat is too rec lined, the lap belt may
slide past the hips and apply restraint
forces directly to the abdomen, or your
neck may contact the shoulder belt,
increasing the risk of death or serious
injury in the event of an accident.
Adjustments should not be made while
driving as the seat may unexpectedly
move and cause the driver to lose control
of the vehicle.

1323-3. Adjusting the seats
■Before folding down the rear seat-
backs
1
Park the vehicle in a safe place.
Apply the parking brake firmly and shift the
shift lever to P. ( P.172)
2Adjust the position of the front seat
and the angle of the seatback.
( P.131)
Depending on the position of the front seat,
if the seatback is fo lded backward, it may
interfere with the operation of the rear
seat.
3Lift up and push down the head
restraints of the rear outboard
seats, and lower the head restraint
of the rear center seat. ( P.136)
4
Stow the armrest of the rear seat if
it is pulled out. ( P.310)
This step is not necessary when operating
the left side seat only.
■Folding down rear seatbacks
Pull the seatback lock release lever
and fold the seatback down.
■Returning the rear seatbacks
To avoid trapping the seat belt between
the seat and the inside of the vehicle,
pass the seat belt inside the seat belt
guide and then return the seatback
securely to the locked position.Rear seats
The seatbacks of the rear seats can
be folded down.
Folding down the rear seatbacks
WARNING
■When folding the rear seatbacks
down
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●Do not attempt to fold the seatbacks
down while driving.
●Stop the vehicle on level ground, set
the parking brake and shift the shift
lever to P.
●Do not allow anyone to sit on a folded
seatback or in the luggage compart-
ment while driving.
●Do not allow childre n to enter the lug-
gage compartment.
●Do not operate the rear seat if it is
occupied.
●Be careful not to get feet or hands
caught in the moving parts or joints of
the seats during operation.
●Do not allow children to operate the
seat.
A

1333-3. Adjusting the seats
3
Before driving
*: If equipped
When all of the following have been
performed, the driver’s seat and steer-
ing wheel are automatically adjusted to
a position that allows driver to enter
and exit the vehicle easily.
The shift lever has been shifted to P.
 The power switch has been turned
off.
 The driver’s seat belt has been
WARNING
■After returning the rear seatback to
the upright position
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●Make sure that the seatback is
securely locked in position by lightly
pushing it back and forth. If the seat-
back is not securely locked, the red
marking will be visible on the seatback
lock release lever. Make sure that the
red marking is not visible.
●Check that the seat belts are not
twisted or caught in the seatback.
Driving position memory*
This feature automatically adjusts
the positions of the driver’s seat,
steering wheel, outside rear view
mirrors and head-up display (if
equipped) to make entering and
exiting the vehicle easier or to suit
your preferences.
Up to 3 different driving positions
can be recorded.
Each electronic key (including a
card key) can be registered to
recall your preferred driving posi-
tion.
Enabling easier driver entry and
exit (power easy access system)

1343-3. Adjusting the seats
unfastened.
When any of the following has been
performed, the driver’s seat and steer-
ing wheel automatically return to their
original positions.
 The power switch has been turned
to ACC or ON.
 The driver’s seat belt has been fas-
tened.
■Operation of the power easy access sys-
tem
When exiting the vehicle, the power easy
access system may not operate if the seat is
already close to the rearmost position, etc.
■Customization
The seat movement amou nt settings of the
power easy access sy stem can be custom-
ized. (Customizable features: P.439)
1Check that the shift lever is in P.
2
Turn the power switch to ON.
3
Adjust the driver’s seat, steering
wheel, outside rear view mirrors
and head-up display (if equipped)
to the desired positions.
4
While pressing the “SET” button, or
within 3 seconds after the “SET”
button is pressed, press button “1”,
“2” or “3” until the buzzer sounds.
If the selected button has already been
preset, the previously recorded position will be overwritten.
■Seat positions that can be memorized
(
 P.131)
The adjusted positions other than the posi-
tion adjusted by lumbar support switch can
be recorded.
■In order to correctly use the driving
position memory function
If a seat position is already in the furthest
possible position and the seat is operated in
the same direction, the recorded position
may be slightly differen t when it is recalled.
1Check that the shift lever is in P.
2
Turn the power switch to ON.
Recording a driving position into
memoryWARNING
■Seat adjustme nt caution
Take care during seat adjustment so that
the seat does not strike the rear passen-
ger or squeeze your body against the
steering wheel.
Recalling a driving position