
590What to do if... (Troubleshooting)
IS300h_EE(OM53B95E)
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. 184)
The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a
period of time. (P. 211)
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (P.
509)
The parking brake indicator is on
Is the parking brake released? (P. 224)
Depending on the situation, other types of warning buzzer may also
sound.
(P. 507, 514)
Did anyone inside the vehicle open a door or anything move inside the
vehicle during setting the alarm?
The sensor detects them and the alarm sounds. (P. 9 6 )
To stop the alarm, turn the power switch to ON mode or start the hybrid
system.The windows do not open or close by operating the power window
switches
The power switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds (if equipped)

594Alphabetical index
IS300h_EE(OM53B95E)
Card key ....................................130
Care ...................................426, 430
Aluminum wheels.................427
Exterior .................................426
Interior ..................................430
Seat belts...............................431
Cargo hooks ..............................417
Caution label ...............................83
CD player ..................................341
Chains ........................................312
Child restraint system ..................61
Baby seats, definition .............62
Baby seats, installation ...........71
Child seats, definition .............62
Child seats, installation...........71
Installing CRS with ISOFIX
rigid anchors.........................74
Installing CRS with seat belts 71
Installing CRS with top strap .75
Junior seats, definition ............62
Junior seats, installation .........73Child safety................................. 60
12-volt battery
precautions ................ 449, 554
Airbag precautions................. 45
Child restraint system ............ 61
How your child should
wear the seat belt ................. 40
Installing child restraints ....... 70
Moon roof precautions......... 190
Power window lock switch .. 184
Power window precautions.. 186
Rear door child-protectors ... 140
Removed electronic key
battery precautions ............ 474
Seat belt precautions .............. 42
Seat heater precautions ........ 409
Trunk precautions ............... 147
Child-protectors ....................... 140
Cleaning............................ 426, 430
Aluminum wheels ................ 427
Exterior ................................ 426
Interior ................................. 430
Seat belts .............................. 431
C

595Alphabetical index
IS300h_EE(OM53B95E)
Clock .........................................420
Coat hooks .................................424
Condenser .................................446
Console box ...............................414
Coolant ......................................444
Capacity ................................567
Checking ...............................444
Preparing and checking
before winter ......................311
Cooling system ..........................444
Engine overheating ...............556
Hybrid system overheating ...556
Cruise control
Cruise control .......................245
Dynamic radar cruise control .....
249
Cup holders ...............................415
Current fuel consumption ..........117
Curtain shield airbags .................43
Customizable features ...............576DAB (Digital Audio Broadcast)339
Daytime running light system . 227
Defogger
Front windshield .................. 404
Outside rear view mirrors .... 404
Rear window ........................ 404
Differential ............................... 569
Digital Audio Broadcast (DAB)339
Dimensions ............................... 562
Display
Drive information ................ 117
Dynamic radar cruise control ....
249
LDA (Lane Departure Alert) 265
Multi-information display.... 116
Warning message................. 514
Distance .................................... 118
Do-it-yourself maintenance ...... 435
Door courtesy lights
Location ............................... 411
Wattage ................................ 572
Door lock
Doors ................................... 136
Smart entry & start system .. 149
Wireless remote control ....... 130D

596Alphabetical index
IS300h_EE(OM53B95E)
Doors .........................................136
Automatic door locking and
unlocking system................140
Door glasses .........................184
Door lock ..............................139
Open door warning buzzer ...137
Open door warning
light ....................................509
Outside rear view mirrors .....180
Rear door child-protector ....140
Drive information ......................117
Drive info 1/Drive info 2...........118
Driver’s and front passenger’s
seat belt reminder light ...........509
Driver’s seat position memory ..168
Driving ......................................192
Break-in tips .........................193
Correct driving posture ...........36
Driving mode select switch ..290
Hybrid vehicle driving tips ...309
Procedures ............................192
Winter drive tips ...................311
Dynamic radar cruise control ....249E-mail ....................................... 375
Eco drive mode......................... 290
Elapsed time ............................. 117
Electric motor (traction motor)... 79
Electric Power Steering (EPS) . 293
Function ............................... 293
Warning light ....................... 508
Electronic key ........................... 130
Battery-saving function ....... 150
If the electronic key does not
operate properly ................ 549
Replacing the battery ........... 472
Emergency, in case of
If the 12-volt battery is
discharged ......................... 551
If the electronic key does not
operate properly ................ 549
If the hybrid system will not
start .................................... 546
If the shift lever cannot be
shifted from P .................... 548
If the warning buzzer sounds507
If the warning light turns on 507
If the warning message is
displayed ........................... 514E

603Alphabetical index
IS300h_EE(OM53B95E)
Moon roof..................................187
Door lock linked moon roof
operation.............................188
Jam protection function ........188
Operation ..............................187
MP3 disc....................................341
Multi-information display .........116
Audio system-linked.............116
Drive information .................117
Dynamic radar cruise
control ................................249
Energy monitor .....................123
LDA (Lane Departure Alert) 265
Navigation system-linked .....116
Settings .................................118
Switching the display ...........117
Warning message..................514
Navigation system
*
Needle .......................................118Odometer .................................. 110
Oil
Differential oil ..................... 569
Engine oil............................. 565
Opener
Hood .................................... 437
Trunk ................................... 143
Outer foot lights
Location ............................... 411
Replacing light bulbs ........... 489
Wattage ................................ 572
Outside rear view mirrors ......... 180
Adjusting and folding .......... 180
BSM (Blind Sport Monitor) 309
Linked mirror function
when reversing .................. 182
Mirror position memory ...... 168
Outside rear view mirror
defoggers .......................... 404
Outside temperature ................. 110
Overheating .............................. 556
N
O
*: For vehicles with a navigation system, refer to the
“Navigation System Owner’s Manual”.

604Alphabetical index
IS300h_EE(OM53B95E)
Paddle shift switches .................218
Parking assist sensors ................271
Parking brake ............................224
PCS
(Pre-Crash Safety system) ......299
Function ................................299
PCS OFF switch ...................301
Warning light........................508
Personal lights ...........................412
Wattage .................................572
Pollen removal mode.................404
Pop-up display ...........................118
Pop Up Hood ...............................56
Power control unit .......................83
Power control unit coolant ........444
Capacity ................................567
Checking ...............................444
Preparing and checking before
winter .................................311Power easy access system ........ 170
Power outlet.............................. 421
Power steering (Electric power
steering system) ..................... 293
Warning light ....................... 508
Power switch ............................ 209
Power windows ........................ 184
Door lock linked window
operation............................ 186
Jam protection function ....... 185
Operation ............................. 184
Window lock switch ............ 184
Pre-Crash Safety system (PCS) 299
Function ............................... 299
PCS OFF switch .................. 301
Warning light ....................... 508
P

608Alphabetical index
IS300h_EE(OM53B95E)
Sun shade
Rear ......................................422
Roof ......................................188
switch settings .....................118
Switches
ASC (Active Sound Control)225
Audio remote control
switches ..............................322
Automatic High Beam switch ....
229
BSM (Blind spot monitor)
switch .................................309
Cruise control
switch .........................245, 249
Door lock switches ...............139
Driving mode select switch ..290
Driving position memory
switches ..............................168
Emergency flashers switch ...498
EV drive mode switch ..........214
Fog light switch ....................233
Heated steering wheel
switch .................................409
Ignition switch ......................209
LDA (Lane Departure Alert)
switch .................................265
Lexus parking assist-sensor
switch .................................271
Light switch ..........................226
Meter control switches .........117
Moon roof switches ..............187Outside rear view mirror
switches ............................. 180
Paddle shift switches ........... 218
PCS OFF switch .................. 301
Power door lock switch ....... 139
Power switch........................ 209
Power window switches ...... 184
Rear sunshade switch........... 422
Rear window and outside rear
view mirror defoggers
switch ................................ 404
Seat heater switches ............. 410
Seat ventilator switches ....... 410
Snow mode switch ............... 217
Talk switch .......................... 378
Telephone switches.............. 378
Tilt and telescopic steering
control switch .................... 176
Tire pressure warning reset
switch ................................ 452
Trunk opener switch ............ 143
Trunk opener main switch ... 145
Vehicle-to-vehicle distance
button................................. 252
VSC OFF switch.................. 295
Window lock switch ............ 184
Windshield wiper de-icer
switch ................................ 405
Windshield wipers
and washer switch ............. 235

611Alphabetical index
IS300h_EE(OM53B95E)
Warning buzzers
Approach warning ................254
Brake system ........................507
Downshifting ........................220
Driver’s and front
passenger’s seat belt
reminder ............................ 509
Lexus parking assist-sensor ..271
Open door .............................509
Pre-crash braking ..................299
Rear passengers’ seat belt
reminder .............................509
Warning lights ...........................105
ABS ......................................508
Automatic headlight leveling
system.................................509
Brake system ........................507
Charging system ...................507
Driver’s and front
passenger’s seat belt
reminder light .....................509
Electric power steering
system.................................508
Low fuel level .......................509
Malfunction indicator lamp ..507
Master warning light ............509
Open door .............................509
Pre-crash safety system ........508
Rear passengers’ seat belt
reminder lights ...................509
Slip indicator ........................508
SRS .......................................508
Tire pressure .........................510Warning messages .................... 514
Warning reflector storage belt .. 419
Washer ...................................... 235
Checking .............................. 446
Preparing and checking
before winter ..................... 311
Switch .................................. 235
Washing and waxing ................ 426
Weight ...................................... 562
Wheels ...................................... 468
Replacing ............................. 468
Size ...................................... 570
Window glasses ........................ 184
Window lock switch ................. 184
Windows................................... 184
Power windows.................... 184
Rear window defogger......... 404
Windshield wiper de-icer ......... 405
Windshield wipers .................... 235
Intermittent windshield wipers
with interval adjuster ......... 235
Rain-sensing windshield
wipers ................................ 237
Winter driving tips.................... 311
Wireless remote control............ 130
Battery-Saving Function ...... 150
Locking/Unlocking ...... 136, 143
Replacing the battery ........... 472
WMA disc ................................ 341
W