key Lexus ES350 2020 / LEXUS 2020 ES350 FROM OCT. 2019 PROD. (OM06194U) Repair Manual

3807-2. Steps to take in an emergency
low speed for an extended period, such
as in heavy traffic.
■When the battery is removed or dis-
charged
●Information stored in the ECU is cleared.
When the battery is depleted, have the
vehicle inspected at your Lexus dealer.
●Some systems may require initialization.
( P.415)
■When removing the battery terminals
When the battery terminals are removed,
the information stored in the ECU is
cleared. Before removi ng the battery termi-
nals, contact your Lexus dealer.
■Charging the battery
The electricity stored in the battery will dis-
charge gradually even when the vehicle is
not in use, due to natural discharge and the
draining effects of certain electrical appli-
ances. If the vehicle is left for a long time,
the battery may discharge, and the engine
may be unable to start. (The battery
recharges automatically during driving.)
■When recharging or replacing the bat-
tery
●In some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
battery is discharged. Use the wireless
remote control or the mechanical key to
lock or unlock the doors.
●The engine may not start on the first
attempt after the battery has recharged
but will start normally after the second
attempt. This is not a malfunction.
●The engine switch mode is memorized by
the vehicle. When the battery is recon-
nected, the system will return to the
mode it was in before the battery was dis-
charged. Before di sconnecting the bat-
tery, turn the engine switch off.
If you are unsure what mode the engine
switch was in befo re the battery dis-
charged, be especially careful when
reconnecting the battery.
■When replacing the battery
●Use a battery that conforms to European
regulations.
●Use a battery that the case size is same as
the previous one (LN3), 20 hour rate
capacity (20HR) is equivalent (70Ah) or
greater, and performance rating (CCA)
is equivalent (592A) or greater.
• If the sizes differ, the battery cannot be properly secured.
• Battery performance may decrease and the engine may not be able to start.
• If the 20 hour rate capacity is low, even if
the time period where the vehicle is not
used is a short time, the battery may dis-
charge and engine may not be able to
start.
For details, consult your Lexus dealer.
WARNING
■When removing the battery terminals
Always remove the negative (-) terminal
first. If the positive (+) terminal contacts
any metal in the surrounding area when
the positive (+) terminal is removed, a
spark may occur, leading to a fire in addi-
tion to electrical shocks and death or
serious injury.
■Avoiding battery fires or explosions
Observe the following precautions to
prevent accidentally igniting the flamma-
ble gas that may be emitted from the bat-
tery:
●Make sure each jumper cable is con-
nected to the correct terminal and that
it is not unintentiona lly in contact with
any other than the intended terminal.
●Do not allow the other end of the
jumper cable connected to the “+” ter-
minal to come into contact with any
other parts or metal surfaces in the
area, such as brackets or unpainted
metal.
●Do not allow the + and - clamps of the
jumper cables to come into contact
with each other.
●Do not smoke, use matches, cigarette
lighters or allow open flame near the
battery.

4068-2. Customization
*2: The default setting varies according to country.
*3:Except F SPORT models
*4:F SPORT models
■Head-up Display* ( P.84)
*:If equipped
■Door lock ( P.95, 99, 376)
FunctionDefault settingCustomized setting
Gauge informationTachometer
Eco Driving Indica-
tor
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 setting
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 function
Shift lever
linked door
locking opera- tionOff
OOSpeed linked door locking operation
Automatic door unlocking function
Shift lever
linked door unlocking operationOff
OODriver’s door linked door unlocking operation
Locking/unlocking of the trunk
when all doors are
locked/unlocked
OnOffO
ABC
ABC

4098-2. Customization
8
Vehicle specifications
*:If equipped
■Power windows, and moon roof* or panoramic moon roof* ( P.124, 126, 129)
*:If equipped
■Automatic light control system ( P.156)
■Lights ( P.156)
*1:Except for Canada
*2: If equipped
■PCS (Pre-Collision System) ( P.175)
FunctionDefault settingCustomized setting
Mechanical key linked operationOffOnO
Wireless remote control linked
operationOffOn (open only)O
Wireless remote control linked
operation signal (buzzer)OnOffO
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2OO
Time elapsed before headlights
automatically turn off after doors
are closed
30 seconds
Off
OO60 seconds
90 seconds
Windshield wiper linked headlight
illuminationOnOffO
FunctionDefault settingCustomized setting
Daytime running lightsOnOff*1OO
Welcome lightingOnOffO
AFS (Adaptive Front-lighting Sys-
tem)
*2OnOffO
FunctionDefault settingCustomized setting
PCS (Pre-Collision System)OnOffO
ABC
ABC
ABC
ABC

4138-2. Customization
8
Vehicle specifications
■Illumination (P.270)
*:If equipped
■Vehicle customization
●When the smart access system with
push-button start is off, the entry unlock
function cannot be customized.
●When the doors remain closed after unlocking the doors and the timer acti-
vated automatic door lock function acti-
vates, signals will be generated in
accordance with the operation buzzer
volume and operational signal (Emer-
gency flashers) function settings.●Some settings can be changed using a
FunctionDefault settingCustomized setting
Time elapsed before the interior
lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation after the engine switch
is turned offOnOffO
Operation when the doors are
unlockedOnOffO
Operation when you approach the
vehicle with the electronic key on
your person
OnOffO
Footwell lightsOnOffO
Instrument panel ornament light*
and door trim ornament lights
*OnOffO
Time elapsed before the outer foot
lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation of the outer foot lights
when you approach the vehicle
with the electronic key on your per-
son
OnOffO
Operation of the outer foot lights
when the doors are unlockedOnOffO
Operation of the outer foot lights
when a door is openedOnOffO
Fading out of the outer foot lights
when they turn offLongShortO
ABC

430What to do if... (Troubleshooting)
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your mechanical keys,
new genuine mechanical keys can
be made by your Lexus dealer.
( P.375)
 If you lose your electronic keys, the
risk of vehicle theft increases signifi-
cantly. Contact your Lexus dealer
immediately. ( P.375)
 Is the electronic key battery weak or
depleted? ( P.334)
 Is the engine switch in IGNITION
ON mode?
When locking the doors, turn the engine
switch off. ( P.146)
 Is the electronic key left inside the
vehicle?
When locking the doors, make sure that
you have the electronic key on your per-
son.
The function may not operate prop-
erly due to the condition of the radio
wave. ( P.107) 
Is the child-protector lock set?
The rear door cannot be opened
from inside the vehicle when the
lock is set.
Open the rear door from outside
and then unlock the child-protector
lock. ( P.98)
 The function to prevent the elec-
tronic key from being left inside the
trunk will operate and you can open
the trunk as usual. Take the key out
from the trunk. ( P.103)
 Did you press the engine switch
while firmly depressing the brake
pedal? ( P.143)
 Is the shift lever in P? ( P.147)
 Is the electronic key anywhere
detectable inside the vehicle?
( P.106)
 Is the steering wheel unlocked?
( P.144)
 Is the electronic key battery weak or
depleted?
If you have a problem, check the
following before contacting your
Lexus dealer.
The doors cannot be locked,
unlocked, opened or closed
You lose your keys
The doors cannot be locked or
unlocked
The rear door cannot be opened
The trunk lid is closed with the
electronic key left inside
If you think something is wrong
The engine does not start

434Alphabetical index
C
Care ..................................................................300Aluminum wheels ..................................... 300
Exterior .......................................................... 300
Interior .............................................................303
Seat belts........................................................303
Cargo capacity................................................ 141
Cargo hooks ..................................................276
Center Display ............................................. 252
Chains .............................................................. 249
Child-protectors............................................. 98
Child restraint system................................... 42 Fixed with a LATCH system .................. 49
Fixed with a seat belt................................... 46
Front passenger occupant classification system ..............................................................37
Points to remember .....................................42
Riding with children ......................................42
Types of child restraint system installation method ........................................................... 43
Using an anchor bracket ............................ 51
Child safety ....................................................... 42 Airbag precautions...................................... 33
Battery precautions ......................... 319, 381
Child restraint system................................. 43
Heated steering wheel and seat heater precautions................................................ 266
How your child should wear the seat belt ............................................................................ 25
Moon roof precautions ............................ 127
Panoramic moon roof precautions ..... 131
Power window lock switch.....................125
Power window precautions ...................125
Rear door child-protectors ..................... 98
Removed electronic key battery precau- tions ............................................................... 335
Seat belt extender precautions ............. 25
Seat belt precautions ...................................24
Trunk precautions ........................................ 99
Cleaning.............................................. 300, 303 Aluminum wheels ..................................... 300 Exterior........................................................... 300
Interior ............................................................ 303
Radar sensor .....................................169, 205
Seat belts ....................................................... 303
Clock ................................................ 70, 73, 277
Coat hooks.....................................................288
Compass ......................................................... 295
Condenser ....................................................... 317
Console box ...................................................274
Console box light .........................................274
Cooling system...............................................316 Engine overheating.................................... 381
Cornering lights ............................................ 158 Replacing light bulbs ................................339
Cruise control Dynamic radar cruise control with full-
speed range ............................................... 193
Cup holder ......................................................274
Current fuel consumption ...........................79
Curtain shield airbags .................................. 28
Customizable features .............................. 404
D
Daytime running light system ...................156
Defogger Outside rear view mirrors.................... 260
Rear window ............................................... 260
Windshield ................................................... 260
Dimension ...................................................... 386
Dinghy towing................................................. 142
Display BSM (Blind Spot Monitor)....................203
Dynamic radar cruise control with full-
speed range ............................................... 193
Head-up display............................................84
Intuitive parking assist ................................. 211
LTA (Lane Tracing Assist) ..................... 187
Multi-information display ...........................77
Parking Support Brake function (rear pedestrians).................................................241
RCD (Rear Camera Detection) ........ 222
RCTA................................................................ 218

435Alphabetical index
Warning message..................................... 362
Distance until next engine oil change71, 76
Do-it-yourself maintenance .................... 306
Door courtesy lights ................................... 270
Door lock Doors .................................................................. 95
Smart access system with push-button start ................................................................. 106
Wireless remote control........................... 93
Doors ................................................................... 95 Automatic door lock ing and unlocking
system ............................................................. 98
Door glasses .................................................. 124
Door lock.......................................................... 95
Open door warning buzzer .......... 96, 98
Outside rear view mirrors ........................121
Rear door child-protectors ..................... 98
Drive distance ...................................................79
Drive info 1/Drive info 2 ...............................79
Driver’s seat position memory .................. 114 Driving position memory ...........................114
Memory recall function ............................. 115
Drive-start control ........................................135
Driving................................................................134 Break-in tips ...................................................135
Correct driving posture .............................23
Driving Mode Select switch .................208
Procedures ..................................................... 134
Winter drive tips......................................... 248
Driving information display .........................79
Driving Mode Select switch....................208
Driving range ....................................................79
Driving support system information display ............................................................................. 82
Dynamic radar cruise control with full- speed range..................................................193Warning message.......................................201
E
Eco drive mode ............................................208
Eco Driving Indicator.................... 80, 81, 87
Eco Driving Indicator Light ........................ 80 EDR (Event data recorder) ............................7
Elapsed time ......................................................79
Electric Power Steering (EPS)
Function .......................................................... 244
Warning light ...............................................354
Electronic key .................................................. 92 Battery-saving function............................ 107
If the electronic key does not operate properly ....................................................... 376
Replacing the battery ...............................334
Electronic roof sunshade Jam protection function ........................... 130
Operation ........................................................129
Emergency, in case of If a warning buzzer sounds...................352
If a warning light turns on.......................352
If a warning message is displayed .....362
If the battery is discharged ....................378
If the electronic key does not operate properly ....................................................... 376
If the engine will not start........................ 373
If the fuel filler do or cannot be opened
..........................................................................375
If the vehicle is trapped in rising water ..........................................................................345
If you have a flat tire ................................. 366
If you lose your keys .................................375
If you think something is wrong......... 350
If your vehicle becomes stuck ............ 383
If your vehicle has to be stopped in an emergency ................................................. 344
If your vehicle needs to be towed ..... 347
If your vehicle overheats ......................... 381
Emergency flashers .................................... 344
Engine ................................................................143 ACCESSORY mode............................... 146
Compartment................................................314
Engine switch .................................................143
Fuel pump shut off system...................... 351
Hood ..................................................................312
How to start the engine ............................143
Identification number ...............................387

438Alphabetical index
K
Keyless entrySmart access system with push-button start ................................................................. 106
Wireless remote control........................... 93
Keys...................................................................... 92 Battery-saving function ............................107
Electronic key ................................................. 92
Engine switch................................................. 143
If the electronic key does not operate properly....................................................... 376
If you lose your keys................................. 375
Key number plate ......................................... 92
Keyless entry .......................................... 95, 101
Mechanical key.............................................. 92
Replacing the battery............................... 334
Warning buzzer .......................................... 106
Wireless remote control........................... 93
Knee airbags .................................................... 28
L
Lane Tracing Assist (LTA) .........................182 Operation........................................................182
Warning messages ................................... 190
Language (multi-information display) ... 82
LATCH anchors ............................................. 49
Lever Auxiliary catch lever ................................... 312
Hood lock release lever........................... 312
Internal trunk release lever .................... 103
Shift lever.......................................................... 147
Turn signal lever ............................................ 151
Wiper lever...................................................... 161
Lexus climate concierge .......................... 257
Lexus Enform Safety Connect.................. 54
Lexus Safety System + 2.0 ........................169 Automatic High Beam ............................. 159
Dynamic radar cruise control with full-speed range ................................................193
LTA (Lane Tracing Assist)......................182
PCS (Pre-Collision System).................. 175 RSA (Road Sign Assist)............................. 191
License plate lights........................................156 Light switch .................................................... 156
Replacing light bulbs ................................339
Light bulbs Replacing .......................................................339
Wattage ..........................................................392
Lights Automatic High Beam system ............. 159
Front interior lights ...................................... 271
Front personal lights................................... 271
Headlight switch.......................................... 156
Interior lights list .......................................... 270
Interior lights .................................................270
Rear interior lights ....................................... 271
Rear personal lights .................................... 271
Trunk light ....................................................... 103
Turn signal lever ............................................ 151
Vanity lights .................................................. 277
Wattage ..........................................................392
Welcome light illumination control ....157
Lock steering column ..................................144
Low profile tire................................................321
LTA (Lane Tracing Assist) .........................182 Operation ....................................................... 182
Warning messages.................................... 190
Luggage mat ..................................................276
M
Maintenance Do-it-yourself maintenance .................. 310
General maintenance ............................ 306
Maintenance data ..................................... 386
Maintenance requirements ................. 305
Malfunction indicator la mp ..................... 353
Master warning light .................................. 359
Menu icons........................................................ 78
Meter Changing the main meter location.......77
Clock.......................................................... 70, 73
Indicators...........................................................68
Instrument panel light control......... 72, 76

440Alphabetical index
Parking brake engaged warning buzzer...........................................................................153
Warning light .............................................. 358
Warning message.......................................153
Parking lights ...................................................156 Light switch .................................................... 156
Parking Support Brake function (rear- crossing vehicles) .......................... 225, 237
Parking Support Brake function (rear pedestrians) ...................................... 225, 241Function ............................................................ 241
Parking Support Brake function (static objects) ............................................... 225, 231Function ............................................................ 231
PCS (Pre-Collision System) ..................... 175 Function ............................................................ 175
PCS OFF switch .......................................... 177
Warning light .............................................. 358
Personal lights............................................... 270
PKSA (Parking Support Alert) ................210
PKSB (Parking Support Brake)............. 225 Warning message..................................... 229
Power easy access system ......................... 114
Power outlet ...................................................277
Power steering (Elect ric power steering
system).......................................................... 244 Warning light ............................................... 354
Power trunk lid ................................................ 99
Power windows .............................................. 124 Door lock linked window operation..125
Jam protection function............................125
Operation........................................................ 124
Window lock switch ..................................125
Pre-Collision System (PCS) ..................... 175 Function ............................................................ 175
PCS OFF switch .......................................... 177
Warning light .............................................. 358
R
Radar cruise control (dynamic radar cruise control with full-speed range)...............193
Radiator ............................................................. 317 RCD (Rear Camera Detection) ........... 222
Function .......................................................... 222
Warning message ..................................... 223
RCTA (Rear Cross Traffic Alert) ...........218
RCTA Function ........................................................... 218
Warning message .......................................219
Rear Cross Traffic Alert (RCTA) ...........218
Rear door sunshades ................................. 286
Rear seats Head restraints............................................... 117
Rear side marker lights ...............................156 Light switch .................................................... 156
Rear sunshades ............................................ 286
Rear turn signal lights ................................... 151 Replacing light bulbs ................................339
Turn signal lever ............................................ 151
Rear view mirror Inside rear view mirror ............................. 120
Outside rear view mirrors........................ 121
Rear window defogger ............................. 260
Refueling ........................................................... 167 Capacity .........................................................387
Fuel types .......................................................387
If the fuel filler do or cannot be opened
..........................................................................375
Opening the fuel tank cap ......................167
Remote Touch .............................................. 252
Replacing Electronic key battery ..............................334
Fuses.................................................................336
Light bulbs .....................................................339
Tires ................................................................. 366
Resetting the message indicating mainte- nance is required ......................................305
Rev indicator .................................................... 75
Rev peak............................................................. 75
Road Sign Assist ............................................. 191
RSA (Road Sign Assist) ............................... 191S
SCB (Secondary Collision Brake) ....... 244

444Alphabetical index
Brake Override System ......................... 354
Brake system ............................................... 352
Charging system ....................................... 353
Downshifting ........................................ 150, 151
Drive-Start Control .................................. 354
Electric power steering .......................... 354
Engine ............................................................. 353
High coolant temperature .................... 352
Intuitive parking assist....................217, 356
Low engine oil pressure......................... 353
LTA (Lane Tracing Assist)......... 182, 356
Open door.............................................. 96, 98
Open hood...................................................... 98
Open trunk ...................................................... 98
Open window ...............................................125
PKSA (Parking Support Alert) ...............211
PKSB (Parking Support Brake) ......... 357
Pre-collision braking.................................. 175
RCD (Rear Camera Detection) ........ 357
RCTA (Rear Cross Traffic Alert) ...... 357
Seat belt ..........................................................355
Warning lights............................................... 352 ABS .................................................................. 354
Brake hold operated indicator ...........359
Brake Override System ......................... 354
Brake system ............................................... 352
Charging system ....................................... 353
Drive-Start Control .................................. 354
Electric power steering .......................... 354
High coolant temperature .................... 352
Intuitive parking assist OFF indicator.........................................................................356
Low engine oil pressure......................... 353
Low fuel level ...............................................355
LTA indicator ...............................................356
Malfunction indicator lamp................... 353
Master warning light ................................359
Parking brake indicator ......................... 358
PKSB OFF indicator ................................ 357
Pre-collision system ................................ 358
RCD OFF indicator ................................. 357
RCTA OFF indicator............................... 357 Seat belt reminder light.......................... 355
Slip indicator ................................................ 358
SRS ....................................................................353
Tire pressure ............................................... 356
Warning messages ..................................... 362
Washer ............................................................... 161 Checking ........................................................ 319
Preparing and checking before winter..........................................................................248
Switch.................................................................. 161
Washing and waxing..................................300
Weight Cargo capacity .............................................. 141
Load limits ........................................................ 141
Weight............................................................ 386
Wheel lock key............................................. 367
Wheels ...............................................................331 Size ..................................................................... 391
Window lock switch .....................................125
Windows ........................................................... 124 Power windows ............................................124
Rear window defogger.......................... 260
Washer .............................................................. 161
Windshield wiper de-icer ........................ 263
Windshield wipers ......................................... 161 Position............................................................. 165
Rain-sensing windshield wipers ............ 161
Winter driving tips....................................... 248
Wireless charger ......................................... 279
Wireless remote control ............................. 93 Battery-Saving Function.......................... 107
Locking/Unlocking ..................................... 93
Replacing the battery ...............................334
For information regarding the equipment listed below, refer to
the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S
MANUAL”.