2015 Lexus GS450h key battery

628What to do if... (Troubleshooting)
GS450h_OM_OM30F70U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys
can be made by your Lexus dealer. ( P. 121)
●If you lose your electronic keys, the risk of vehicle theft
increases significantly. Contact your Lexus dealer immediately.
( P. 122)
●Is the electronic key battery weak or depleted? ( P. 460)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( P. 1 9 4 )
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the elec-
tronic key on your person.
●The function may not operate pr operly due to the condition of
the radio wave. ( P. 130)
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

630What to do if... (Troubleshooting)
GS450h_OM_OM30F70U_(U)
●Did you press the power switch while firmly depressing the
brake pedal? ( P. 193)
●Is the shift lever in P? ( P. 1 9 6 )
●Is the electronic key anywhere detectable inside the vehicle?
( P. 1 2 6 )
●Is the steering wheel unlocked? ( P. 1 9 7 )
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary
way. ( P. 560)
●Is the 12-volt battery discharged? ( P. 562)
●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 5 6 )
●It is locked automatically to prevent theft of the vehicle.
( P. 1 9 6 )
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 turn ed after the hybrid system is
stopped

636Alphabetical index
GS450h_OM_OM30F70U_(U)
Child restraint system............................ 57Booster seats, definition .................... 57
Booster seats, installation.................. 67
Convertible seats, definition ............ 57
Convertible seats, installation ......... 64
Front passenger occupant classification system ......................... 49
Infant seats, definition .......................... 57
Infant seats, installation ....................... 64
Installing CRS with LATCH anchors ..................... 62
Installing CRS with seat belts .......... 64
Installing CRS with top tether strap .........................68
Child safety ................................................ 56 12-volt battery precautions ............................. 441, 565
Airbag precautions ................................41
Child restraint system ......................... 57
How your child should wear the seat belt ................................. 33, 35
Installing child restraints.......................61
Moon roof precautions.....................174
Power window lock switch .............167
Power window precautions .......... 170
Rear door child-protectors ........... 140
Removed electronic key battery precautions................ 461
Seat belt comfort guide ..................... 33
Seat belt extender precautions ...... 37
Seat belt precautions ..........................60
Seat heater precautions................. 384
Trunk precautions............................... 146 Child-protectors .................................... 140
Cleaning ........................................ 408, 412
Aluminum wheels ..............................409
Exterior .................................................. 408
Interior ....................................................... 412
Seat belts.................................................. 413
Clock..........................................................376
Coat hooks ............................................. 390
Condenser.............................................. 436
Console box ........................................... 369
Console box light ................................. 369
Consumption screen ..............................114
Coolant .....................................................434 Capacity................................................. 579
Checking ............................................... 434
Preparing and checking before winter..................................................... 318
Cooling system ......................................434 Engine overheating ..........................566
Hybrid system overheating ..........566
Cruise control Cruise control ..................................... 235
Dynamic radar cruise control ..... 239
Dynamic radar cruise control with full-speed range ................... 254
Cup holders............................................ 370
Curtain shield airbags ............................39
Customizable features ...................... 599

638Alphabetical index
GS450h_OM_OM30F70U_(U)
Electronic key ......................................... 120Battery-saving function .................... 129
If the electronic key does not operate properly............................ 559
Replacing the battery ...................... 460
Emergency, in case of If a warning buzzer sounds.......... 503
If a warning light turns on.............. 503
If a warning message is displayed ......................................... 513
If the 12-volt battery is discharged .........................................562
If the electronic key does not operate properly ....... 559
If the hybrid system will not start....................................... 554
If the parking brake cannot be released ........................557
If the shift lever cannot be shifted from P ........... 556
If you have a flat tire ........................... 541
If you think something is wrong.............................................. 502
If your vehicle becomes stuck ...... 571
If your vehicle has to be stopped in an emergency ............................ 495
If your vehicle needs to be towed ...................................... 496
If your vehicle overheats ............... 566
Emergency flashers ............................. 494
Energy monitor ........................................ 112 Engine
Accessory mode .................................194
Compartment ..................................... 429
Engine switch ........................................193
Hood........................................................ 426
How to start the hy brid system ....193
Identification number....................... 575
Ignition switch (power switch) ..................................193
Overheating.........................................566
Power switch .........................................193
Engine compartment cover............. 430
Engine coolant .......................................434 Capacity................................................. 579
Checking ............................................... 434
Preparing and checking before winter ..................................... 318
Engine coolant temperature gauge .......................................................... 91
Engine oil ................................................... 431 Capacity................................................. 577
Checking ................................................. 431
Oil level warning message ........... 525
Oil pressure warning message.............................514
Preparing and checking before winter ..................................... 318
Engine oil maintenance data ............. 416
Engine switch ........................................... 193
EPS (Electric Power Steering) ....... 284 Function .................................................. 284
Warning light .......................................504
Warning message.............................. 518
EV drive mode ...................................... 200
Event data recorder (EDR).....................11

641Alphabetical index
GS450h_OM_OM30F70U_(U)
I/M test ..................................................... 422
Identification ........................................... 575Engine ......................................................575
Vehicle ....................................................575
Ignition switch (power switch) ..........193
Illuminated entry system .................... 365
Immobilizer system...................................81
Indicators .................................................... 89
Initialization Maintenance.......................................... 416
Moon roof ...............................................173
Power windows ................................... 168
Tire pressure warning system................................445
Initiators (tire pressure warning system)...................................451
Inside door handle lights ................... 363
Inside rear view mirror .........................162
Instrument panel light control ............ 93
Interior lights........................................... 363
Intuitive parking assist
*
Function*
Warning message ..................515, 525 Jack
Positioning a floor jack.....................427
Vehicle-equipped jack ................... 542
Jack handle ................................................. 542
Jam protection function Moon roof ............................................... 172
Power trunk opener and closer ............................................145
Power windows................................... 168
Keyless entry ............................................ 123 Smart access system with push-button start.................... 123
Wireless remote control..................136
Keys ............................................................. 120 Battery-Saving Function .................. 129
Electronic key ........................................120
Engine switch ........................................193
If the electronic key does not operate properly ........559
Key number plate ................................120
Keyless entry ............................... 123, 136
Mechanical key.....................................120
Power switch .........................................193
Replacing the battery ......................460
Warning buzzer................................... 127
Wireless remote control key .........136
Knee airbags ..............................................39
IJ
K
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

645Alphabetical index
GS450h_OM_OM30F70U_(U)
Pre-Collision System (PCS) ............ 290Function ................................................. 290
PCS OFF switch ................................ 292
Warning light ...................................... 505
Warning message .......................515, 526, 532
Radar cruise control (dynamic radar cruise control) ........................ 239
Radiator .................................................... 436
Radio
*
RBDS (Radio Broadcast Data Systems)
*
Rear air conditioning system ........... 355
Rear door sunshades ..........................388
Rear personal lights............................. 364
Rear side marker lights ........................ 217 Light switch ............................................. 217
Replacing light bulbs ....................... 489
Welcome light illumination cont rol ..........................123
Rear seat heaters.................................. 382
Rear sunshade ....................................... 387 Operation ..............................................387
Reverse operation feature............ 388 Rear turn signal lights ......................... 209
Replacing light bulbs ....................... 487
Turn signal lever ................................. 209
Wattage .................................................583
Rear view mirror Inside rear view mirror...................... 162
Outside rear view mirrors ..............164
Rear view monitor system
*
Rear window defoggers .................... 360
Refueling.................................................. 230 Capacity................................................. 576
Fuel types............................................... 576
Opening the fuel tank cap ............ 232
When the fuel filler door cannot be opened ......................... 233
Regenerative braking............................. 74
Remote Touch
*.....................................326
Replacing Electronic key battery .....................460
Fuses ........................................................ 462
Light bulbs............................................. 479
Tires ............................................................541
Reporting safety defects for U.S. owners .................................... 612
Resetting the message indicating maintenance is required .................. 416
Road accident cautions ......................... 79
R
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

651Alphabetical index
GS450h_OM_OM30F70U_(U)
No-handed driving warning ........ 275
Open door ........................................... 520
Open moon roof ................................ 521
Open hood .......................................... 520
Open trunk ............................................ 521
Open window ...................................... 521
Pre-collision braking ....................... 290
Seat belt reminder ............................ 506
Warning lights .......................................... 87 ABS.......................................................... 504
AFS OFF indicator ........................... 505
Brake hold operated indicator ............................................. 505
Brake system.......................... 503, 506
Charging system............................... 504
Electric power steering.................. 504
Low fuel level ...................................... 506
Malfunction indicator lamp .......... 504
Master warning light........................ 506
Open door ........................................... 506
Parking brake indicator ................. 505
Pre-collision system......................... 505
Seat belt reminder light.................. 506
Slip indicator ........................................ 505
SRS ........................................................... 504
Tire pressure ....................................... 507
Warning messages ............................... 513
Warning reflector storage belt....... 374
Washer ..................................................... 223 Checking............................................... 438
Low washer fluid warning message .......................... 530
Preparing and checking before winter ..................................... 318
Switch....................................................... 223 Washing and waxing .......................... 408
Weight
Cargo capacity.................................... 190
Load limits .............................................. 190
Weight .................................................... 574
Welcome light illumination control ..................................................... 123
Wheels Replacing wheels .............................. 456
Size ...........................................................582
Window glasses...................................... 167
Window lock switch.............................. 167
Windows.................................................... 167 Power windows.................................... 167
Rear window defogger ..................360
Windshield wiper de-icer ................... 361
Windshield wipers ................................223 Position ..................................................... 321
Rain-sensing windshield wipers................................................... 223
Winter driving tips .................................318
Wireless remote control key............. 136 Battery-Saving Function .................. 129
Locking/Unlocking ............................136
Replacing the battery ......................460
WMA disc
*
XM® Satellite Radio*
X
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.