2021 LEXUS ES300h audio

3727-2. Steps to take in an emergency
■Brake hold operated indicator (warning buzzer)
■Hybrid system overheat warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Master warning light (warning buzzer)
■Warning buzzer
In some cases, the bu zzer may not be heard
due to being in a noisy location or audio
sound.
■Front passenger detection sensor, seat
belt reminder and warning buzzer
●If luggage is placed on the front passen-
ger seat, the front passenger detection
sensor may cause th e warning light to
flash and the warning buzzer to sound
even if a passenger is not sitting in the
seat.
●If a cushion is placed on the seat, the sen-
sor may not detect a passenger, and the
warning light may not operate properly.
■SRS warning light
This warning light system monitors the air-
bag sensor assembly, fr ont impact sensors,
side impact sensors (front door), side
impact sensors (front), side impact sensors
(rear), driver’s seat position sensor, driver’s
seat belt buckle switch, front passenger
occupant classification system (ECU and
sensors), “AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front pas-
senger’s seat belt buckle switch, seat belt
pretensioners, airbags, interconnecting wir-
ing and power sources. (
P.28)
■Electric power steering system warning
light (warning buzzer)
When the 12-volt battery charge becomes
insufficient or the voltage temporarily
drops, the electric power steering system
warning light may come on and the warning
buzzer may sound.
■When the tire pressure warning light
comes on
Inspect the tires to check if a tire is punc-
tured.
If a tire is punctured:  P.379
If none of the tires are punctured:
Turn the power switch off then turn it to ON
mode. Check if the tire pressure warning
light comes on or blinks.
Warning lightDetails/Actions
(flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates that the hybrid system has overheated
Stop the vehicle in a safe place. Handling method ( P.397)
Warning lightDetails/Actions
A buzzer sounds and the warning light comes on and flashes to indicate
that the master warning system has detected a malfunction.
 P.375

3767-2. Steps to take in an emergency
*: A buzzer sounds the first time a message is shown on the multi-information display.
In some situations, the master warning light and warning buzzer may not oper-
ate as specified. In this case, follow the instructions displayed in the warning
message.
 If a warning light comes on or flashes at the same time that a warning message is
displayed, take corrective actio n according to the warning light. ( P.365)
■Warning messages
The warning messages explained below
may differ from the actual messages
according to operation conditions and vehi-
cle specifications.
■Warning buzzer
In some cases, the bu zzer may not be heard
due to being in a noisy location or audio
sound.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level is low. Check the level
of the engine oil, and add if necessary.
This message may appear if the vehicle is
stopped on a slope. Move the vehicle to a
level surface and check to see if the mes-
sage disappears.
■If “Hybrid System Stopped Steering
Power Low” is displayed
This message is displayed if the hybrid sys- tem is stopped while driving.
When steering wheel operations are
heavier than usual, gr
ip the steering wheel
firmly and operate it using more force than
usual.
■If “Hybrid system overheated Output
power reduced” is displayed
This message may be displayed when driv-
ing under severe operat ing conditions. (For
example, when driving up a long steep hill.)
Handling method:  P.396
■If “Traction Battery Needs to be Pro-
tected Refrain From the Use of N Posi-
tion” is displayed
This message may be displayed when the
shift lever is in N.
As the hybrid battery (traction battery) can
not be charged when the shift lever is in N,
shift the shift lever to P when the vehicle is
stopped.
Warning buzzer*Warning
Comes onSounds
Indicates an important situation, such as when a sys-
tem related to driving is ma lfunctioning or that dan-
ger may result if the co rrection procedure is not
performed
FlashesSoundsIndicates a situation, such as when damage to the
vehicle or danger may result
Comes onDoes not sound
Indicates a condition, such as malfunction of electri-
cal components, their condition, or indicates the
need for maintenance
FlashesDoes not sound
Indicates a situation, such as when an operation has
been performed incorrectly, or indicates how to
perform an operation correctly

3937-2. Steps to take in an emergency
7
When trouble arises
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 posi-
tion.
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.431)
■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.

4228-2. Customization
■Head-up Display* ( P.86)
*:If equipped
■Door lock ( P.101, 105, 389)
FunctionDefault settingCustomized set-
ting
Gauge informationHybrid System IndicatorTachometerONo content
Route guidance to destina-
tion/street name
*OnOffO
Driving support system displayOnOffO
Compass*OnOffO
Audio system operation statusOnOffO
FunctionDefault settingCustomized set- ting
Unlocking using a mechanical
key
Driver’s door
unlocked in one step, all doors
unlocked in two step
All doors unlocked in one stepO
Automatic door locking func-
tionShift lever linked
door locking oper- ationOff
OOSpeed linked door locking operation
Automatic door unlocking
functionShift lever linked door unlocking operation
Off
OODriver’s door linked door
unlocking opera- tion
Locking/unlocking of the trunk
when all doors are
locked/unlocked
OnOffO
ABC
ABC

449Alphabetical index
Alphabetical index
A
A/C ................................................................... 265Air conditioning filter ............................... 342
Automatic air conditioning system ... 265
Front seat concentr ated airflow mode
(S-FLOW)................................................... 271
ABS (Anti-lock Brake System).............. 248 Function .......................................................... 248
Warning light ............................................... 367
ACA (Active Cornering Assist) ........... 248
Acoustic vehicle alerting system ............. 63
Active Cornering Assist (ACA) ........... 248
Adaptive Front-lighting System (AFS) .163
AFS (Adaptive Front-lighting System) .163
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi- tions .................................................................... 31
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ..............................................................37
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions........................................................ 31
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ......................................366
Air conditioning filter ................................. 342
Air conditioning system ............................ 265 Air conditioning filter ............................... 342
Automatic air conditioning system ... 265
Front seat concentr ated airflow mode
(S-FLOW)................................................... 271
Alarm ..................................................................... 71 Alarm..................................................................... 71
Warning buzzer ........................................ 365
Anchor brackets ..................................... 44, 53
Antennas (smart access system with push-
button start) ................................................... 112
Anti-lock Brake System (ABS).............. 248 Function ..........................................................248
Warning light ............................................... 367
Approach warning...................................... 204
Armrest............................................................ 293
Assist grips ..................................................... 293
Audio system-linked display ...................... 83
Auto Glide Control ...................................... 214
Automatic headlight leveling system ....162
Automatic High Beam ................................164
Automatic light control system................. 161
Auxiliary box.................................................. 282
Average fuel economy................................. 82
Average vehicle speed ................................ 82
B
Back-up lights Replacing light bulbs ................................352
Battery (12-volt battery) ........................... 326 Battery checking ........................................326
If the 12-volt battery is discharged ..... 391
Preparing and checking before winter..........................................................................254
Warning light .............................................. 366
Battery (traction batter y) ............................ 64
Blind Spot Monitor (BSM).......................208
Brake Brake hold ...................................................... 159
Fluid.................................................................. 406
Parking brake ................................................157
Regenerative braking ................................. 62
Warning light .............................................. 365
Brake assist .................................................... 248
Break-in tips..................................................... 137
Brightness control Instrument panel light control................ 80
BSM (Blind Spot Monitor).......................208

Alphabetical index455
General maintenance ...............................313
Maintenance data...................................... 402
Maintenance requirements .................... 312
Malfunction indicator lamp ..................... 366
Master warning light .................................. 372
Menu icons..........................................................81
Meter Clock .................................................................. 78
Hybrid System Indicator ........................... 79
Indicators .......................................................... 75
Instrument panel light control ................80
Meter control switches .............................. 82
Meters ................................................................ 78
Multi-information display ............................81
Settings .............................................................. 84
Warning lights .............................................365
Warning message..................................... 375
Mirrors Inside rear view mirror.............................. 126
Outside rear view mirror defoggers266
Outside rear view mirrors ...................... 127
Vanity mirrors.............................................. 284
Moon roof Door lock linked moon roof operation...........................................................................133
Jam protection function............................133
Operation........................................................ 132
Multi-information display ..............................81 Audio system-linked display................... 83
Drive information 1/Drive information 2............................................................................ 82
Driving information display...................... 82
Driving support system information dis- play ................................................................... 83
Dynamic radar cruise control with full- speed range ............................................... 198
Energy monitor.............................................. 90
LTA (Lane-Tracing Assist) ..................... 192
Menu icons ........................................................81
Meter control switches .............................. 82
Navigation system-linked display ........ 83
Pop-up display.................................................81 Settings...............................................................84
Suggestion function .....................................84
Tire pressure ................................................. 331
Warning message .....................................375
N
Navigation system-linked display... 83, 86
Noise from under vehicle ...............................6
O
Odometer ......................................................... 80
Odometer and trip meter display
“ODO TRIP” switch ................................... 80
Display items .................................................. 80
Pop-up display .............................................. 80
“ODO TRIP” switch ...................................... 80
Oil Engine oil....................................................... 404
Opener Fuel filler door ................................................ 172
Hood ................................................................. 319
Trunk ................................................................. 107
Outer foot lights Replacing light bulbs ................................352
Outside door handle lig hts.......................277
Outside rear view mirrors ......................... 127 Adjustment ...................................................... 127
BSM (Blind Spot Monitor)................... 208
Folding.............................................................. 128
Linked mirror functi on when reversing
............................................................................129
Mirror position memory .......................... 120
Outside rear view mirror defoggers266
RCTA function ............................................ 222
Outside temperature.................................... 78
Overheating .................................................. 396
P
Paddle shift switches ......................... 154, 155
Panic mode ....................................................... 99

Alphabetical index461
Windows .......................................................... 130Power windows........................................... 130
Rear window defogger .......................... 266
Washer ............................................................. 167
Windshield wiper de-ice r ........................ 270
Windshield wipers ........................................ 167 Position .............................................................170
Rain-sensing windshield wipers........... 167
Winter driving tips....................................... 254
Wireless charger ......................................... 286
Wireless remote control ............................. 99 Battery-Saving Function ........................... 113
Locking/Unlocking ..................................... 99
Replacing the battery............................... 347
For information regarding the equipment listed below, refer to
the “NAVIGATION AND MUL-
TIMEDIA SYSTEM OWNER’S
MANUAL”.
· Audio/video system
· Navigation system
· Lexus parking assist monitor
· Panoramic view monitor
· Lexus Enform