2019 Lexus ES350 key battery

426What 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.371)
 If you lose your electronic keys, the
risk of vehicle theft increases signifi-
cantly. Contact your Lexus dealer
immediately. ( P.371)
 Is the electronic key battery weak or
depleted? ( P.330)
 Is the engine switch in IGNITION
ON mode?
When locking the doors, turn the engine
switch off. ( P.139)
 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.101) 
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.92)
 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.97)
 Did you press the engine switch
while firmly depressing the brake
pedal? ( P.137)
 Is the shift lever in P? ( P.141)
 Is the electronic key anywhere
detectable inside the vehicle?
( P.100)
 Is the steering wheel unlocked?
( P.138)
 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

430Alphabetical index
C
Care .......................................................296, 299Aluminum wheels ...................................... 296
Exterior ........................................................... 296
Interior ............................................................. 299
Seat belts........................................................ 299
Cargo capacity...............................................135
Cargo hooks ................................................. 268
Center Display ............................................. 244
Chains ................................................................ 241
Child-protectors............................................. 92
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 ............315, 376, 376
Child restraint system................................. 43
Heated steering wheel and seat heater precautions................................................258
How your child should wear the seat belt ............................................................................ 25
Moon roof precautions ..............................121
Panoramic moon roof precautions ....125
Power window lock switch...................... 119
Power window precautions .................... 119
Rear door child-protectors ..................... 92
Removed electronic key battery precau- tions ...............................................................330
Seat belt extender precautions ............. 25
Seat belt precautions ...................................24
Trunk precautions ........................................ 93
Cleaning...............................................296, 299 Aluminum wheels ...................................... 296 Exterior............................................................296
Interior .............................................................299
Radar sensor ...................................... 163, 198
Seat belts ........................................................299
Clock ................................................ 64, 67, 269
Coat hooks.....................................................280
Compass ......................................................... 286
Condenser .......................................................313
Console box .................................................. 266
Console box light ........................................ 266
Cooling system...............................................312 Engine overheating................................... 377
Cornering lights .............................................152 Replacing light bulbs ................................335
Cruise control Dynamic radar cruise control with full-
speed range ............................................... 187
Cup holder ..................................................... 266
Current fuel consumption ...........................73
Curtain shield airbags .................................. 28
Customizable features ..............................400
D
Daytime running light system .................. 150
Defogger Outside rear view mirrors..................... 252
Rear window ................................................ 252
Windshield .................................................... 252
Dimension ...................................................... 382
Dinghy towing.................................................136
Display BSM (Blind Sport Monitor)....................197
Dynamic radar cruise control with full-
speed range ............................................... 187
Head-up display............................................ 78
Intuitive parking assist ............................. 205
LTA (Lane Tracing Assist) ....................... 181
Multi-information display ............................ 71
Parking Support Brake function (rear pedestrians)............................................... 233
RCD (Rear Camera Detection) ......... 215
RCTA.................................................................. 211

431What to do if... (Troubleshooting)Alphabetical index431
Warning message.................................... 358
Distance until next engine oil change .. 65, 70
Do-it-yourself maintenance .................... 302
Door courtesy lights ................................... 262
Door lock Doors .................................................................. 89
Smart access system with push-button start ................................................................. 100
Wireless remote control........................... 87
Doors ................................................................... 89 Automatic door lock ing and unlocking
system ............................................................. 92
Door glasses ................................................... 118
Door lock.......................................................... 89
Open door warning buzzer .......... 90, 92
Outside rear view mirrors ....................... 115
Rear door child-protectors ..................... 92
Drive distance ...................................................73
Drive info 1/Drive info 2 ...............................73
Driver’s seat position memory ................ 108 Driving position memory ........................ 108
Memory recall function ........................... 109
Drive-start control ........................................129
Driving................................................................128 Break-in tips ................................................... 129
Correct driving posture .............................23
Driving Mode Select switch ................. 202
Procedures .....................................................128
Winter drive tips......................................... 240
Driving information display .........................73
Driving Mode Select switch.................... 202
Driving range ....................................................73
Driving support system information display ..............................................................................76
Dynamic radar cruise control with full- speed range..................................................187Warning message...................................... 195
E
Eco drive mode ............................................ 202
Eco Driving Indicator..................... 74, 75, 81 Eco Driving Indicator Light .........................74
EDR (Event data recorder) ............................7
Elapsed time ......................................................73
Electric Power Steering (EPS)
Function ..........................................................236
Warning light .............................................. 350
Electronic key .................................................. 86 Battery-saving function.............................. 101
If the electronic key does not operate properly ....................................................... 372
Replacing the battery .............................. 330
Electronic roof sunshade Jam protection function ............................124
Operation ........................................................123
Emergency, in case of If a warning buzzer sounds.................. 348
If a warning light turns on...................... 348
If a warning message is displayed .... 358
If the battery is discharged .................... 374
If the electronic key does not operate properly ....................................................... 372
If the engine will not start....................... 369
If the fuel filler do or cannot be opened
............................................................................371
If the vehicle is trapped in rising water ............................................................................341
If you have a flat tire ..................................362
If you lose your keys ...................................371
If you think something is wrong..........346
If your vehicle becomes stuck ............. 379
If your vehicle has to be stopped in an emergency ................................................ 340
If your vehicle needs to be towed .....343
If your vehicle overheats ........................ 377
Emergency flashers .................................... 340
Engine ................................................................ 137 ACCESSORY mode............................... 139
Compartment............................................... 310
Engine switch .................................................137
Fuel pump shut off system..................... 347
Hood ............................................................... 308
How to start the engine ............................137

434Alphabetical index
Panoramic moon roof............................... 124
Power trunk opener and closer ............ 97
Power windows............................................. 118
K
Keyless entrySmart access system with push-button start ................................................................. 100
Wireless remote control........................... 87
Keys...................................................................... 86 Battery-saving function ............................. 101
Electronic key ................................................. 86
Engine switch................................................. 137
If the electronic key does not operate properly....................................................... 372
If you lose your keys................................... 371
Key number plate ......................................... 86
Keyless entry ..........................................89, 95
Mechanical key.............................................. 86
Replacing the battery...............................330
Warning buzzer .......................................... 100
Wireless remote control........................... 87
Knee airbags .................................................... 28
L
Lane Tracing Assist (LTA) ......................... 176 Operation........................................................ 176
Warning messages ................................... 184
Language (multi-information display) ....76
LATCH anchors ............................................. 49
Lever Auxiliary catch lever ................................ 308
Hood lock release lever........................ 308
Internal trunk release lever ...................... 97
Shift lever............................................................141
Turn signal lever ...........................................145
Wiper lever.................................................... 155
Lexus climate concierge . ......................... 249
Lexus Enform Safety Connect............... 289
Lexus Safety System+2.0 ..........................163 Automatic High Beam ..............................153 Dynamic radar cruise
control with full-
speed range ............................................... 187
LTA (Lane Tracing Assist) ......................176
PCS (Pre-Collision System) ................. 169
RSA (Road Sign Assist)........................... 185
License plate lights....................................... 150 Light switch .................................................... 150
Replacing light bulbs ................................335
Light bulbs Replacing .......................................................335
Wattage ......................................................... 388
Lights Automatic High Beam system ............. 153
Front interior lights ....................................263
Front personal lights.................................263
Headlight switch.......................................... 150
Interior lights list .......................................... 262
Interior lights ................................................. 262
Rear interior lights .....................................263
Rear personal lights ..................................263
Trunk light ......................................................... 97
Turn signal lever .......................................... 145
Vanity lights ..................................................269
Wattage ......................................................... 388
Welcome light illumination control ..... 151
Lock steering column ................................. 138
Low profile tire................................................ 317
LTA (Lane Tracing Assist) ......................... 176 Operation ........................................................176
Warning messages.................................... 184
Luggage mat ................................................. 268
M
Maintenance Do-it-yourself maintenance ................ 306
General maintenance .............................302
Maintenance data ......................................382
Maintenance requirements ................... 301
Malfunction indicator la mp ..................... 349
Master warning light .................................. 355
Menu icons.........................................................72

436Alphabetical index
Parking assist sensors (intuitive parking assist) ............................................................. 205
Parking brake..................................................146 Operation........................................................146
Parking brake engaged warning buzzer........................................................................... 147
Warning light ............................................... 354
Warning message....................................... 147
Parking lights .................................................. 150 Light switch .................................................... 150
Parking Support Brake function (rear- crossing vehicles) ........................... 218, 229
Parking Support Brake function (rear pedestrians) ...................................... 218, 233Function .......................................................... 233
Parking Support Brake function (static objects) ............................................... 218, 224Function .......................................................... 224
PCS (Pre-Collision System) .....................169 Function ............................................................169
PCS OFF switch ............................................171
Warning light ............................................... 354
Personal lights............................................... 262
PKSA (Parking Support Alert) .............. 204
PKSB (Parking Support Brake)...............218 Warning message......................................222
Power easy access system ....................... 108
Power outlet .................................................. 269
Power steering (Elect ric power steering
system).......................................................... 236 Warning light .............................................. 350
Power trunk lid ................................................ 93
Power windows ............................................... 118 Door lock linked window operation... 119
Jam protection function............................. 119
Operation......................................................... 118
Window lock switch ................................... 119
Pre-Collision System (PCS) .....................169 Function ............................................................169
PCS OFF switch ............................................171
Warning light ............................................... 354R
Radar cruise control (dynamic radar cruise control with full-speed range)...............187
Radiator .............................................................313
RCD (Rear Camera Detection) .............215 Function ........................................................... 215
Warning message .......................................216
RCTA (Rear Cross Traffic Alert) ............ 211
RCTA Function ............................................................. 211
Warning message ....................................... 212
Rear Cross Traffic Alert (RCTA) ............ 211
Rear door sunshades ................................. 278
Rear seats Head restraints................................................. 111
Rear side marker lights .............................. 150 Light switch .................................................... 150
Rear sunshades ............................................ 278
Rear turn signal lights ..................................145 Replacing light bulbs ................................335
Turn signal lever .......................................... 145
Rear view mirror Inside rear view mirror ............................... 114
Outside rear view mirrors........................ 115
Rear window defogger ............................. 252
Refueling ............................................................ 161 Capacity ........................................................ 383
Fuel types ...................................................... 383
If the fuel filler do or cannot be opened
............................................................................371
Opening the fuel tank cap ....................... 161
Remote Touch .............................................. 244
Replacing Electronic key battery ............................. 330
Fuses.................................................................. 331
Light bulbs .....................................................335
Tires ..................................................................362
Resetting the message indicating mainte- nance is required ....................................... 301
Rev indicator .................................................... 69
Rev peak............................................................. 69

440Alphabetical index
W
Warning buzzersABS ................................................................. 350
Airbags ........................................................... 349
Approach warning......................................193
Brake hold.....................................................355
Brake Override System ........................ 350
Brake system ...............................................348
Charging system ....................................... 349
Downshifting ........................................144, 144
Drive-Start Control ................................. 350
Electric power steering ......................... 350
Engine ............................................................. 349
High coolant temperature ....................348
Intuitive parking assist......................211, 352
Low engine oil pressure......................... 349
LTA (Lane Tracing Assist)..........176, 352
Open door.............................................. 90, 92
Open hood...................................................... 92
Open trunk ...................................................... 92
Open window ................................................ 119
PKSA (Parking Support Alert) ...........205
PKSB (Parking Support Brake) .........353
Pre-collision braking..................................169
RCD (Rear Camera Detection) ........ 353
RCTA (Rear Cross Traffic Alert) ...... 353
Seat belt ............................................................351
Warning lights............................................... 348 ABS ................................................................. 350
Brake hold operated indicator ...........355
Brake Override System ........................ 350
Brake system ...............................................348
Charging system ....................................... 349
Drive-Start Control ................................. 350
Electric power steering ......................... 350
High coolant temperature ....................348
Intuitive parking assist OFF indicator352
Low engine oil pressure......................... 349
Low fuel level .................................................351
LTA indicator ............................................... 352
Malfunction indicator lamp................... 349 Master warning light................................ 355
Parking brake indicator ..........................354
PKSB OFF indicator ................................353
Pre-collision system..................................354
RCD OFF indicator..................................353
RCTA OFF indicator ...............................353
Seat belt reminder light............................ 351
Slip indicator .................................................354
SRS ....................................................................349
Tire pressure ................................................352
Warning messages .....................................358
Washer ............................................................. 155 Checking ........................................................ 315
Preparing and checking before winter..........................................................................240
Switch................................................................ 155
Washing and waxing.................................. 296
Weight Cargo capacity ............................................ 135
Load limits ...................................................... 135
Weight.............................................................382
Wheel lock key............................................. 363
Wheels ............................................................. 327
Size ....................................................................387
Window lock switch ...................................... 119
Windows ............................................................ 118 Power windows ............................................. 118
Rear window defogger........................... 252
Washer ............................................................ 155
Windshield wiper de-icer ........................ 255
Windshield wipers ....................................... 155 Position............................................................. 159
Rain-sensing windshield wipers .......... 155
Winter driving tips....................................... 240
Wireless charger ........................................... 271
Wireless remote control ............................. 87 Battery-Saving Function............................ 101
Locking/Unlocking ..................................... 87
Replacing the battery .............................. 330