Page 561 of 584
559
ES350_OM_OM33C68U_(U)
Index
What to do if... (Troubleshooting)................................560
Alphabetical index................................. 564
For vehicles with navigation system, refer to the “NAVIGATION
SYSTEM OWNER’S MANUAL” for information regarding the
equipment listed below.
•Navigation system
• Lexus parking assist monitor
• Audio/video system
•Lexus Enform
Page 562 of 584

560What to do if... (Troubleshooting)
ES350_OM_OM33C68U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be made
by your Lexus dealer. ( →P. 9 3 )
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( →P. 9 4 )
●Is the electronic key battery weak or depleted? ( →P. 4 5 7 )
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( →P. 1 5 5 )
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
( → P. 1 1 0 )
●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. 9 8 )
●The function to prevent the electronic 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. 1 0 3 )
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
Page 563 of 584

561What to do if... (Troubleshooting)
ES350_OM_OM33C68U_(U)
●Did you press the engine switch while firmly depressing the brake pedal?
(→ P. 1 5 4 )
●Is the shift lever in P? (→ P. 1 5 6 )
●Is the electronic key anywhere detectable inside the vehicle? ( →P. 1 0 8 )
●Is the steering wheel unlocked? ( →P. 1 5 7 )
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. ( →P. 5 0 5 )
●Is the battery discharged? ( →P. 5 0 6 )
●Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
engine switch in IGNITION ON mode ( →P. 1 6 2 )
●It is locked automatically to prevent theft of the vehicle. ( →P. 1 5 6 )
●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. 1 3 1 )
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( →P. 1 5 6 )
If you think something is wrong
The engine does not start
The shift lever cannot be shifted fr om P even if you depress the brake
pedal
The steering wheel cannot be turned after the engine is stopped
The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
Page 564 of 584

562What to do if... (Troubleshooting)
ES350_OM_OM33C68U_(U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( →P. 4 8 3 )
●The parking brake indicator is on
Is the parking brake released? ( →P. 1 6 4 )
Depending on the situation, other type s of warning buzzer may also sound.
( → P. 482, 488)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( →P. 6 7 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside th e vehicle or the moon roof opened?
Check the message on the multi-information display. ( →P. 4 8 8 )
●When a warning light turns on or a warning message is displayed, refer to
P. 482, 488.
●Stop the vehicle in a safe place and replace the flat tire with the spare tire.
(→ P. 4 9 1 )
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(→ P. 5 1 3 )
A warning buzzer sounds during driving
An alarm is activate
d and the horn sounds
A warning buzzer sounds wh en leaving the vehicle
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
Page 565 of 584
563What to do if... (Troubleshooting)
ES350_OM_OM33C68U_(U)
Page 566 of 584

564Alphabetical index
ES350_OM_OM33C68U_(U)
Alphabetical index
A/CAir conditioning filter ....................... 455
Automatic air conditioning system ................................................. 368
Micro dust and pollen
filter ........................................................ 373
ABS (Anti-lock Brake System)
Function ................................................. 258
Warning light .......................................482
Adaptive Front-lighting System (AFS) ..................................................... 484
AFS (Adaptive Front-lighting System) .................................................. 484
Air conditioning filter .......................... 455
Air conditioning system Air conditioning filter ....................... 455
Automatic air conditioning system ................................................. 368
Micro dust and pollen
filter ........................................................ 373 Airbags
Airbag operating conditions ............ 41
Airbag precautions for your child ........................................37
Airbag warning light ........................ 482
Correct driving posture .................... 28
Curtain shield airbag operating conditions ......................... 41
Curtain shield airbag precautions ...........................................37
Front passenger occupant classification system......................... 44
General airbag precautions ............37
Locations of airbags............................ 35
Modification and disposal of airbags............................................... 40
Side airbag operating conditions ............................................... 41
Side airbag precautions .....................37
Side and curtain shield airbags operating conditions ......................... 41
Side and curtain shield
airbags precautions ..........................37
SRS airbags ............................................. 35
Alarm ............................................................ 67 Warning buzzer ................................. 482
Anchor brackets...................................... 55
Antennas (smart access system with push-button start) .................... 108
Anti-lock Brake System (ABS)
Function ..................................................258
Warning light ....................................... 482
Approach warning (dynamic radar cruise control).......................... 215
Armrest .................................................... 390
A
Page 567 of 584

565Alphabetical index
ES350_OM_OM33C68U_(U)
Armrest door ......................................... 393
Assist grip ................................................ 394
Audio input.............................................. 279
Audio system
*....................................... 270
Audio input............................................ 279
AUX port ............................................... 279
Bluetooth
® audio ............................. 328
CD player ............................................. 302
iPod .......................................................... 309
MP3/WMA disc .............................. 302
Optimal use ......................................... 289
Portable music player ........................317
Radio ........................................................296
Setup menu ...........................................282
Steering wheel audio switches ............................................... 276
USB memory ........................................ 313
Automatic air conditioning
system .................................................... 368
Automatic headlight leveling
system ...................................................... 167
Automatic High Beam ........................ 168
Automatic light control system ......................................................165
Automatic transmission ...................... 159 If the shift lever
cannot be shifted from P ............. 162
AUX port
*.............................................. 279
Auxiliary box ..........................................385 Back-up lights
Replacing light bulbs ....................... 469
Wattage ................................................. 524
Battery ...................................................... 439 If the battery
is discharged ................................... 506
Preparing and checking before
winter.................................................... 263
Bluetooth
®*
Audio system ........................................ 318
Hands-free system
(for cellular phone) ....................... 329
Brake
Fluid ..........................................................438
Parking brake ........................................164
Warning light ....................................... 482
Brake assist ............................................. 258
Break-in tips ............................................. 142
Brightness control
Instrument panel light control ......... 77
BSM (Blind Spot Monitor) ............... 250
Care Aluminum wheels ................................415
Exterior ..................................................... 414
Interior ....................................................... 417
Seat belts..................................................418
Cargo capacity ........................................ 151
Cargo hooks .......................................... 386
CD player
*............................................. 302
Chains........................................................264
B
C
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.
Page 568 of 584

566Alphabetical index
ES350_OM_OM33C68U_(U)
Child restraint systemBooster seats, definition ......................51
Booster seats, installation..................60
Convertible seats, definition ..............51
Convertible seats, installation ........ 58
Front passenger occupant
classification system ......................... 44
Infant seats, definition ............................51
Infant seats, installation ...................... 58
Installing CRS
with LATCH anchors .....................56
Installing CRS with seat belts ......... 58
Installing CRS with top tether strap ...........................61
Child safety ................................................ 50 Airbag precautions .............................. 37
Battery precautions...........................440, 509
Child restraint system ...........................51
How your child should wear the seat belt ............................................31
Installing child restraints.....................55
Moon roof precautions.....................137
Power window lock switch .............. 131
Power window precautions .......... 133
Rear door child-protectors .............98
Removed electronic key battery precautions.............. 458
Seat belt extender precautions........................................... 33
Seat belt precautions .......................... 33
Seat heater precautions.................. 377
Trunk precautions............................... 104 Child-protectors ..................................... 98
Cleaning
Aluminum wheels ................................415
Exterior ..................................................... 414
Interior ....................................................... 417
Seat belts..................................................418
Clock......................................................... 389
Coat hooks ............................................. 394
Condenser...............................................437
Console box........................................... 383
Console box light ................................. 383
Consumption screen ............................. 86
Cooling system Engine overheating ........................... 510
Cruise control Cruise control ..................................... 220
Dynamic radar cruise control .....208
Cup holders............................................ 384
Curtain shield airbags ........................... 35
Customizable features ...................... 538
Daytime running light system............ 166
Defogger
Front windshield..................................372
Outside rear view mirrors .............372
Rear window .........................................372
Dimension ................................................. 516
Dinghy towing ......................................... 153
Display
Dynamic radar cruise control .....208
LDA (Lane Departure Alert with steering control) .....................199
Multi-information display..................80
Trip information ..................................... 87
Warning message............................ 488
D