Page 577 of 600
577
ES300h_OM_OM33B71U_(U)
Index
What to do if... (Troubleshooting)................................ 578
Alphabetical index.................................582
For vehicles with navigation sy stem, 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 578 of 600

578What to do if... (Troubleshooting)
ES300h_OM_OM33B71U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne w genuine mechanical keys can be made
by your Lexus dealer. ( P. 1 0 5 )
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( P. 1 0 7 )
●Is the electronic key battery weak or depleted? ( P. 4 7 5 )
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( P. 1 6 7 )
●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 2 3 )
●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. 111)
●The function to prevent the electronic ke y 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 1 6 )
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 579 of 600

579What to do if... (Troubleshooting)
ES300h_OM_OM33B71U_(U)
●Did you press the power switch while firmly depressing the brake pedal?
(P. 166)
●Is the shift lever in P? ( P. 1 6 8 )
●Is the electronic key anywhere detectable inside the vehicle? ( P. 1 2 1 )
●Is the steering wheel unlocked? ( P. 1 6 9 )
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way. ( P. 522)
●Is the 12-volt battery discharged? ( P. 5 2 3 )
●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. 5 2 0 )
●It is locked automatically to prevent theft of the vehicle. ( P. 1 6 8 )
●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 4 5 )
If you think something is wrong
The hybrid system does not start
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
Page 580 of 600

580What to do if... (Troubleshooting)
ES300h_OM_OM33B71U_(U)
●The auto power off function will be oper ated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a period of time.
( P. 1 6 8 )
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 500)
●The parking brake indicator is on
Is the parking brake released? ( P. 1 7 7 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 499, 505)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 7 8 )
To stop the alarm, turn the power switch to ON mode or start the hybrid system.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. ( P. 505)
●When a warning light turns on or a warning message is displayed, refer to
P. 499, 505. 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
Page 581 of 600
581What to do if... (Troubleshooting)
ES300h_OM_OM33B71U_(U)
●Stop the vehicle in a safe place and replace the flat tire with the spare tire.
(P. 5 0 8 )
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(P. 5 3 1 )
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
Page 582 of 600

582Alphabetical index
ES300h_OM_OM33B71U_(U)
Alphabetical index
A/CAir conditioning filter........................ 473
Automatic air conditioning system ................................................. 384
Humidity sensor .................................393
Micro dust and pollen filter ....................................................... 389
ABS (Anti-lock Brake System)
Function .................................................. 272
Warning light ...................................... 499
Air conditioning filter .......................... 473
Air conditioning system Air conditioning filter........................ 473
Automatic air conditioning system ................................................. 384
Humidity sensor ............................... 393
Micro dust and pollen filter ....................................................... 389 Airbags
Airbag operating conditions .......... 43
Airbag precautions for your child ....................................... 39
Airbag warning light ........................ 499
Correct driving posture .................... 30
Curtain shield airbag operating conditions ....................... 43
Curtain shield airbag precautions .......................................... 39
Front passenger occupant classification system......................... 46
General airbag precautions ........... 39
Locations of airbags.............................37
Modification and disposal of airbags................................................42
Side airbag operating conditions ............................................. 43
Side airbag precautions .................... 39
Side and curtain shield airbags operating conditions ....................... 43
Side and curtain shield airbags precautions ......................... 39
SRS airbags ..............................................37
Alarm ............................................................78 Warning buzzer................................. 499
Anchor brackets....................................... 57
Antennas (smart access system with push-button start) .......................121
Anti-lock Brake System (ABS) Function ...................................................272
Warning light ....................................... 499
Approach warning (dynamic radar cruise control).........................229
Armrest .....................................................407
Assist grip .................................................. 410
Audio input ..............................................294
A
Page 583 of 600

583Alphabetical index
ES300h_OM_OM33B71U_(U)
Audio system*....................................... 286
Audio input............................................294
AUX port...............................................294
Bluetooth
® audio ..............................343
CD player ............................................... 319
iPod ...........................................................326
MP3/WMA disc ................................ 319
Optimal use ......................................... 305
Portable music player ......................334
Radio ..........................................................312
Setup menu ...........................................296
Steering wheel audio switches ...............................................293
USB memory ...................................... 330
Automatic air conditioning system .................................................... 384
Automatic headlight leveling system ..................................................... 180
Automatic High Beam .......................... 181
Automatic light control system ......................................................178
AUX port
*.............................................. 294
Auxiliary box .......................................... 402 Back-up lights
Replacing light bulbs ...................... 488
Wattage ................................................. 542
Battery (12-volt battery) .................... 455 If the 12-volt battery is discharged .................................... 523
Preparing and checking before winter....................................................280
Battery (traction battery) ....................... 71
Bluetooth
®*
Audio system ....................................... 335
Hands-free system (for cellular phone) ....................... 345
Brake Fluid .......................................................... 453
Parking brake ........................................ 177
Warning light ....................................... 499
Brake assist .............................................. 272
Break-in tips ............................................. 155
Brightness control Instrument panel light control ........ 87
BSM (Blind Spot Monitor) ................264
B
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.
Page 584 of 600

584Alphabetical index
ES300h_OM_OM33B71U_(U)
CareAluminum wheels ..............................429
Exterior....................................................428
Interior ...................................................... 431
Seat belts ................................................ 432
Cargo capacity........................................163
Cargo hooks .......................................... 403
CD player
*...............................................319
Chains ........................................................ 281
Child restraint system Booster seats, definition ....................53
Booster seats, installation.................. 62
Convertible seats, definition ............ 53
Convertible seats, installation .........60
Front passenger occupant classification system ......................... 46
Infant seats, definition .......................... 53
Infant seats, installation .......................60
Installing CRS with LATCH anchors .................... 58
Installing CRS with seat belts ..........60
Installing CRS with top tether strap ......................... 63
Child safety ................................................ 52 12-volt battery precautions ...........526
Airbag precautions .............................. 39
Child restraint system ......................... 53
How your child should wear the seat belt .......................................... 33
Installing child restraints..................... 57
Moon roof precautions...................... 151 Power window lock switch.............145
Power window precautions ........... 147
Rear door child-protectors ............... 111
Removed electronic
key battery precautions .............. 476
Seat belt extender precautions .......................................... 35
Seat belt precautions .......................... 56
Seat heater precautions ................. 394
Trunk precautions ................................. 117
Child-protectors ....................................... 111
Cleaning Aluminum wheels .............................. 429
Exterior ................................................... 428
Interior ....................................................... 431
Seat belts................................................ 432
Clock......................................................... 406
Coat hooks ............................................... 410
Condenser...............................................452
Console box ........................................... 400
Console box light ................................. 400
Consumption screen ..............................99
Cooling system Hybrid system overheating .......... 527
Cruise control Cruise control ..................................... 234
Dynamic radar cruise control ......222
Cup holders.............................................. 401
Curtain shield airbags ............................ 37
Customizable features ...................... 555
C