stop start Lexus ES300h 2020 Workshop Manual

3927-2. Steps to take in an emergency
6Open and close any of the doors of
your vehicle with the power switch
off.
7 Maintain the engine speed of the
second vehicle and start the hybrid
system of your vehicle by turning
the power switch to ON mode.
8 Make sure the “READY” indicator
comes on. If the indicator does not
come on, contact your Lexus
dealer.
9 Once the vehicle’s hybrid system
has started, remove the jumper
cables in the exact reverse order
from which they were connected.
10 Close the exclusive jump starting
terminal cover, and reinstall the fuse
box cover to its original position.
Once the hybrid system starts, have the
vehicle inspected at your Lexus dealer as
soon as possible.
■Starting the hybrid system when the 12-
volt battery is discharged
The hybrid system cannot be started by
push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio sys-
tem while the hybrid system is stopped.
●Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
■When the 12-volt battery is removed or
discharged
●Information stored in the ECU is cleared.
When the 12-volt battery is depleted,
have the vehicle inspected at your Lexus
dealer.
●Some systems may require initialization.
(  P.429)
■When removing the 12-volt battery ter-
minals
When the 12-volt battery terminals are
removed, the information stored in the
ECU is cleared. Before removing the 12-
volt battery terminals, contact your Lexus
dealer.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery
will discharge gradually even when the
vehicle is not in use, due to natural dis-
charge and the draining effects of certain
electrical appliances. If the vehicle is left for
a long time, the 12-volt battery may dis-
charge, and the hybrid system may be
unable to start. (The 12-volt battery
recharges automatically while the hybrid
system is operating.)
■When recharging or replacing the 12-
volt battery
●In some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
12-volt battery is discharged. Use the
wireless remote control or the mechani-
cal key to lock or unlock the doors.
●The hybrid system may not start on the
first attempt after the 12-volt battery has
recharged but will start normally after the
second attempt. This is not a malfunction.
●The power switch mode is memorized by
the vehicle. When the 12-volt battery is
reconnected, the system will return to the
mode it was in before the 12-volt battery
was discharged. Before disconnecting
the 12-volt battery, turn the power switch
off.
If you are unsure what mode the power
switch was in before the 12-volt battery
discharged, be especially careful when
reconnecting the 12-volt battery.
■When replacing the 12-volt battery
●Use a 12-volt battery that conforms to
European regulations.
●Use a 12-volt battery that the case size is
same as the previous one (LN2), 20 hour
rate capacity (20HR) is equivalent
(60Ah) or greater, and performance rat-
ing (CCA) is equivalent (345A) or
greater.

3967-2. Steps to take in an emergency
engine coolant is unavailable.
6Start the hybrid system and turn the
air conditioning system on to check
that the radiator cooling fan oper-
ates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning
system is turned on immediately after a
cold start. Confirm that the fan is operating
by checking the fan sound and air flow. If it
is difficult to check these, turn the air con-
ditioning system on and off repeatedly.
(The fan may not operate in freezing tem-
peratures.)
7 If the fan is not operating:
Stop the hybrid system immediately
and contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the
nearest Lexus dealer.
If “Hybrid system overheated Out-
put power reduced” is shown on the
multi-information display
1 Stop the vehicle in a safe place.
2 Stop the hybrid system and care-
fully lift the hood. 3
After the hybrid system has cooled
down, inspect the hoses and radia-
tor core (radiato r) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4 The coolant level is satisfactory if it
is between the “FULL” and “LOW”
lines on the reservoir.
Reservoir
“FULL” line
“LOW” line
5 Add coolant if necessary.
Water can be used in an emergency if
A
B
A
B
C

3977-2. Steps to take in an emergency
7
When trouble arises
power control unit coolant is unavailable.
6After stopping the hybrid system
and waiting for 5 minutes or more,
start the hybrid system again and
check if “Hybrid system overheated
Output power reduced” is shown
on the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your
Lexus dealer.
If the message is not displayed:
The hybrid system temperature has
dropped and the vehicle may be driven
normally.
However, if the message appears again fre-
quently, contact your Lexus dealer.
WARNING
■When inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious
injury such as burns.
●If steam is seen coming from under the
hood, do not open the hood until the
steam has subsided. The engine com-
partment may be very hot.
●After the hybrid system has been
turned off, check that the “READY”
indicator are off.
When the hybrid system is operating,
the gasoline engine may automatically
start, or the cooling fan may suddenly
operate even if the gasoline engine
stops. Do not touch or approach rotat-
ing parts such as the fan, which may
lead to fingers or clothing (especially a
tie, a scarf or a muffler) getting caught,
resulting in serious injury.
●Do not loosen the coolant inlet cap or
coolant reservoir caps while the hybrid
system and radiator are hot.
High temperature steam or coolant
could spray out.
NOTICE
■When adding engine/power control
unit coolant
Add coolant slowly after the hybrid sys-
tem has cooled down sufficiently. Adding
cool coolant to a hot hybrid system too
quickly can cause damage to the hybrid
system.
■To prevent damage to the cooling sys-
tem
Observe the following precautions:
●Avoid contaminating the coolant with
foreign matter (such as sand or dust
etc.).
●Do not use any coolant additive.

3987-2. Steps to take in an emergency
1Stop the hybrid system. Set the
parking brake and shift the shift
lever to P.
2
Remove the mud, snow or sand
from around the front wheels.
3
Place wood, stones or some other
material under the front wheels to
help provide traction.
4
Restart the hybrid system.
5
Shift the shift lever to D or R and
release the parking brake. Then,
while exercising caution, depress
the accelerator pedal.
■When it is difficult to free the vehicle
Press the switch to turn off TRAC.
If the vehicle becomes stuck
Carry out the following proce-
dures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Recovering procedure
WARNING
■When attempting to free a stuck vehi-
cle
If you choose to push the vehicle back
and forth to free it, make sure the sur-
rounding area is clear to avoid striking
other vehicles, objects or people. The
vehicle may also lunge forward or lunge
back suddenly as it becomes free. Use
extreme caution.
■When shifting the shift lever
Be careful not to shif t the shift lever with
the accelerator pedal depressed.
This may lead to un expected rapid accel-
eration of the vehicle that may cause an
accident resulting in death or serious
injury.
NOTICE
■To avoid damaging the transmission
and other components
●Avoid spinning the front wheels and
depressing the accelerator pedal
more than necessary.
●If the vehicle remains stuck even after
these procedures are performed, the
vehicle may require towing to be freed.

445What to do if... (Troubleshooting)
In this case, the hybrid system can be
started in a temporary way. ( P.389)
Is the 12-volt battery discharged?
( P.390)
 Is the power switch in ON mode?
If you cannot release the shift lever
by depressing the brake pedal with
the power switch in ON mode
( P.151)
 It is locked automatically to prevent
theft of the vehicle. ( P.143)
 Is the window lock switch pressed?
The power window except for the one at
the driver’s seat cannot be operated if the
window lock switch is pressed. ( P.129)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or ON mode
(hybrid system is not operating) for
a period of time. ( P.146) 
The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing
the seat belts? ( P.367)
 The parking brake indicator is on
Is the parking brake released? ( P.155)
Depending on the situation, other
types of warning buzzer may also
sound. ( P.364, 374)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
( P.69)
To stop the alarm, turn the power
switch to ON mode, or start the hybrid
system.
 Is the message displayed on the
multi-information display?
Check the message on the multi-informa-
tion display. ( P.374)
 When a warning light turns on or a
warning message is displayed, refer
to P.364, 374.
The shift lever cannot be shifted
from P even if you depress the
brake pedal
The steering wheel cannot be
turned after the hybrid system is
stopped
The windows do not open or
close by operating the power
window switches
The power switch is turned off
automatically
A warning buzzer sounds during
driving
An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed

Alphabetical index449
Door courtesy lights ....................................277
Door lockDoors .................................................................. 99
Smart access system with push-button start ................................................................... 110
Wireless remote control........................... 97
Doors ................................................................... 99 Automatic door lock ing and unlocking
system ............................................................102
Door glasses ..................................................128
Door lock.......................................................... 99
Open door warning bu zzer .......100, 102
Outside rear view mirrors ......................125
Rear door child-protectors ....................102
Drive distance .................................................. 80
Drive info 1/Drive info 2 .............................. 80
Driver’s seat position memory .................. 118 Driving position memory .......................... 118
Memory recall function ............................. 119
Drive-start control ........................................135
Driving................................................................134 Break-in tips ...................................................135
Correct driving posture .............................23
Driving Mode Select switch ................... 212
Hybrid vehicle driving tips ......................251
Procedures ..................................................... 134
Winter drive tips......................................... 253
Driving information display ........................ 80
Driving Mode Select switch...................... 212
Driving range ................................................... 80
Driving support system information display ...............................................................................81
Dynamic radar cruise control with full- speed range..................................................196Warning message..................................... 204
E
ECB (Electronically Controlled Brake Sys- tem) .................................................................247
Eco drive mode .............................................. 212
EDR (Event data recorder) ........................... 8
Elapsed time ..................................................... 80 Electric motor (traction motor) ................ 60
Electric Power Steering (EPS)
Function .......................................................... 247
Warning light .............................................. 366
Electronically Controlled Brake System (ECB) .............................................................247
Electronic key .................................................. 96 Battery-saving function................................ 111
If the electronic key does not operate properly ...................................................... 388
Replacing the battery ...............................346
Emergency, in case of If a warning buzzer sounds...................364
If a warning light turns on.......................364
If a warning message is displayed ..... 374
If the 12-volt battery is discharged ... 390
If the electronic key does not operate properly ...................................................... 388
If the fuel filler do or cannot be opened
..........................................................................387
If the hybrid system will not start ....... 385
If the vehicle is trapped in rising water ..........................................................................357
If you have a flat tire ..................................378
If you lose your keys .................................387
If you think something is wrong..........362
If your vehicle becomes stuck ............ 398
If your vehicle has to be stopped in an emergency ................................................ 356
If your vehicle needs to be towed .... 359
If your vehicle overheats ....................... 395
Emergency flashers .................................... 356
Energy monitor ............................................... 88
Engine ACCESSORY mode............................... 146
Compartment................................................321
Hood ................................................................. 319
How to start the hybrid system.............143
Identification number ................................ 401
If the hybrid system will not start ....... 385
If your vehicle has to be stopped in an emergency ................................................ 356

Alphabetical index451
Replacing light bulbs..................................351
Headlights aim .............................................. 350
Head restraints ................................................ 121
Head-up display.............................................. 84 Driving information display area........... 84
Driving support system display area .. 86
HUD (Head-up display) switch............85
Hybrid System Indicator ........................... 87
Navigation system-linked display ........ 84
Pop-up display............................................... 86
Settings .............................................................. 85
Heated steering wheel .............................. 273
Heaters Air conditioning system.......................... 265
Heated steering wheel............................ 273
Outside rear view mirrors .................... 266
Seat heaters .................................................. 273
High mounted stoplight Replacing light bulbs..................................351
High-voltage components ......................... 63
Hill-start assist control ................................247
Hood ...................................................................319 Open .................................................................319
Hooks Cargo hooks................................................ 283
Coat hooks ................................................... 295
Grocery bag hooks ................................. 283
Retaining hooks (floor mat)......................22
Horn .................................................................... 124
HUD (Head-up display) switch................ 85
Hybrid battery (traction battery) Location............................................................. 63
Specification ................................................. 402
Warning message........................................ 66
Hybrid battery (traction battery) air vents ............................................................................. 65
Hybrid system .................................................. 60 Emergency shut off system ..................... 66
Energy monitor/consumption screen88
EV drive mode ............................................ 148
High voltage components ....................... 63
Hybrid system precautions ..................... 63 Hybrid vehicle driving tips ..................... 251
If the hybrid system will not start ....... 385
Overheating ................................................ 396
Power (ignition) switch .............................143
Regenerative braking ...................................61
Starting the hybrid system .......................143
Vehicle proximity noti
fication system. 62
Hybrid System Indicator.......................77, 87
Hybrid transmission..................................... 150 Paddle shift switches ....................... 152, 153
S mode ............................................................. 153
I
I/M test ..............................................................316
IdentificationEngine............................................................... 401
Vehicle ........................................................... 400
Ignition switch (power switch) .................143
Auto power off function........................... 146
Changing the power switch modes . 146
If your vehicle has to be stopped in an emergency ................................................ 356
Starting the hybrid system .......................143
Immobilizer system.........................................67
Indicators ............................................................73
Initialization Items to initialize ......................................... 429
Maintenance.......................................312, 323
Power windows ........................................... 128
Tire pressure warning system .............334
Inside rear view mirror ................................ 124
Instrument panel light control ................... 78
Interior lights...................................................277
Intuitive parking assist........................ 214, 215 Function ........................................................... 215
Warning message ....................................... 217
J
JackPositioning a floor jack ............................. 319
Vehicle-equipped jack ........................... 379

454Alphabetical index
.......................................................................... 156
Warning light ............................................... 370
Warning message...................................... 156
Parking lights ...................................................159 Light switch .................................................... 159
Parking Support Brake function (rear- crossing vehicles) ..........................228, 240Function .......................................................... 240
Parking Support Brake function (rear pedestrians) ..................................... 228, 244Function .......................................................... 244
Parking Support Brake function (static objects) ..............................................228, 234Function .......................................................... 234
PCS (Pre-Collision System) .....................178 Function ............................................................178
PCS OFF switch ......................................... 180
Warning light ............................................... 370
Personal lights................................................277
PKSA (Parking Support Alert) ................ 214
PKSB (Parking Support Brake)............. 228 Warning message..................................... 232
Power control unit.......................................... 63
Power control unit coolant ...................... 323 Capacity .........................................................403
Checking ....................................................... 323
Preparing and checking before winter......................................................................... 253
Power easy access system ......................... 118
Power outlet .................................................. 284
Power steering (Elect ric power steering
system)...........................................................247 Warning light ...............................................366
Power switch ...................................................143 Auto power off function ...........................146
Changing the power switch modes ..146
If your vehicle has to be stopped in an
emergency ................................................356
Starting the hybrid system....................... 143
Power trunk lid .............................................. 103
Power windows ..............................................128 Door lock linked window operation.. 129 Jam protection function ............................129
Operation ....................................................... 128
Window lock switch...................................129
Pre-Collision System (PCS) .....................178 Function ........................................................... 178
PCS OFF switch ......................................... 180
Warning light ...............................................370
R
Radar cruise control (dynamic radar cruise control with full-speed range)...............196
Radiator ........................................................... 324
RCD (Rear Camera Detection) ............. 214 Function .......................................................... 225
Warning message ..................................... 226
RCTA (Rear Cross Traffic Alert) . 214, 221
RCTA Function ............................................................ 221
Warning message ..................................... 222
Rear Cross Traffic Alert (RCTA) . 214, 221
Rear door sunshades ................................. 293
Rear seats Head restraints............................................... 121
Rear side marker lights ...............................159 Light switch .................................................... 159
Rear sunshades ............................................ 293
Rear turn signal lights ..................................154 Replacing light bulbs ................................. 351
Turn signal lever .......................................... 154
Rear view mirror Inside rear view mirror ..............................124
Outside rear view mirrors...................... 125
Rear window defogger ............................. 266
Refueling ...........................................................170 Capacity .......................................................... 401
Fuel types ........................................................ 401
If the fuel filler do or cannot be opened
..........................................................................387
Opening the fuel tank cap ..................... 170
Regenerative braking ..................................... 61
Remote Touch .............................................. 258
Replacing

456Alphabetical index
Starting the hybrid system....................... 143
Snow tires ....................................................... 253
Spare tire Storage location ......................................... 379
Spark plug ...................................................... 403
Specifications ................................................400
Speedometer ....................................................76
Sport mode ...................................................... 212
Steering lock Column lock release.................................. 143
Steering lock system warning message........................................................................... 143
Steering wheel ................................................123 Adjustment...................................................... 123
Heated steering wheel............................ 273
Meter control switches ..............................80
Power easy access system ...................... 118
Steering wheel position memory ......... 118
Stop lights Replacing light bulbs..................................351
Storage feature ............................................280
Stuck If the vehicle becomes stuck................398
Suggestion function....................................... 82
Sunshade Roof ..................................................................... 131
Sun visors ........................................................ 284
Switches “ODO TRIP” switch .................................... 78
“SOS” button .................................................. 54
Automatic High Beam system.............. 162
Brake Hold switch ...................................... 157
BSM (Blind spot monitor) switch......206
Door lock switches ...................................... 101
Driving Mode Select switch ................... 212
Driving position memory switches ...... 118
Dynamic radar cruise control with full-speed range switch ................................. 197
Emergency flashers switch ...................356
EV drive mode switch ............................. 148
Garage door opener switches .......... 296
Heated steering wheel switch............. 273 HUD (Head-up display) switch ............85
Ignition switch ................................................143
Instrument panel light control switches
............................................................................. 78
Intuitive parking assist switch .................216
Light switches ............................................... 159
LTA (Lane-Tracing Assist) switch ..... 190
Meter control switches ............................. 80
Moon roof switches................................... 130
Outside rear view mi rror switches .... 125
Paddle shift switches ....................... 152, 153
Parking brake switch................................. 155
PCS OFF switch ......................................... 180
PKSB (Parking Support Brake) switch .......................................................................... 229
Power door lock switch ............................ 101
Power switch..................................................143
Power window switches ......................... 128
RCD (Rear Camera Detection) switch .......................................................................... 225
RCTA switch .................................................. 221
Rear sunshades switch............................293
Rear window and outside rear view mir-
ror defoggers switch ............................265
Seat heater switches................................. 273
Seat ventilator switches .......................... 273
Tilt and telescopic steering control switch ............................................................................123
Tire pressure warning reset switch...334
Trunk closer switch .................................... 106
Trunk opener main switch...................... 109
Trunk opener switch ................................. 105
Vehicle-to-vehicle di stance switch.....197
VSC OFF switch .......................................248
Window lock switch...................................129
Windshield wiper and washer switch164
Windshield wiper de-icer switch.......269
T
Tachometer........................................................76
Tail lights............................................................159 Light switch .................................................... 159