
862What to do if... (Troubleshooting)
GS450h_OM_OM30D52U_(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. 6 9 4 )
●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 properly due to the condition of
the radio wave. ( →P. 1 3 0 )
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
GS450h_OM_OM30D52U_(U).book Page 862 Monday, July 29, 2013 12:07 PM

864What to do if... (Troubleshooting)
GS450h_OM_OM30D52U_(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. 197)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary
way. ( →P. 7 9 4 )
●Is the 12-volt battery discharged? ( →P. 7 9 6 )
●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. 7 9 0 )
●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
GS450h_OM_OM30D52U_(U).book Page 864 Monday, July 29, 2013 12:07 PM

870Alphabetical index
GS450h_OM_OM30D52U_(U)
Care ................................................ 642, 646Aluminum wheels ..............................643
Exterior.................................................... 642
Interior .................................................... 646
Seat belts ................................................647
Cargo capacity....................................... 190
Cargo hooks .......................................... 607
Caution label ..............................................76
CD player ................................................ 457
Chains ....................................................... 344
Child restraint system............................ 57 Booster 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 ........................... 675, 799
Airbag precautions................................ 41
Child restraint system......................... 57
How your child should wear
the seat belt ................................. 33, 35
Installing child restraints ...................... 61
Moon roof precautions .................... 173
Power window lock switch............. 167
Power window precautions ...........169
Rear door child-protectors ............140
Removed electronic key battery precautions ..............695
Seat belt comfort guide ..................... 33
Seat belt extender precautions ......37
Seat belt precautions .......................... 60
Seat heater precautions .................. 618
Trunk precautions ...............................146
Child-protectors ....................................140
Cleaning ....................................... 642, 646 Aluminum wheels .............................. 643
Exterior ................................................... 642
Interior ..................................................... 646
Seat belts................................................ 647
Clock...........................................................610
Coat hooks ..............................................624
Condenser...............................................670
Console box........................................... 603
Console box light ................................. 603
Consumption screen ............................. 115
Coolant .................................................... 668
Capacity .................................................. 813
Checking .............................................. 668
Preparing and checking before winter.................................................... 342
C
GS450h_OM_OM30D52U_(U).book Page 870 Monday, July 29, 2013 12:07 PM

872Alphabetical index
GS450h_OM_OM30D52U_(U)
Eco drive mode .....................................305
EDR (Event data recorder) .................... 11
Electric motor (traction motor) ..........72
Electric Power Steering (EPS) .......308Function ................................................. 308
Warning light .......................................738
Warning message ............................. 752
Electronic key ......................................... 120 Battery-saving function .................... 129
If the electronic key does not operate properly.............................793
Replacing the battery ...................... 694
Emergency, in case of
If a warning buzzer sounds........... 737
If a warning light turns on............... 737
If a warning message is displayed ........................................ 747
If the 12-volt battery is discharged .........................................796
If the electronic key does not operate properly ........793
If the hybrid system will not start....................................... 788
If the parking brake cannot be released..........................791
If the shift lever cannot be shifted from P ........... 790
If you have a flat tire .......................... 775
If you think something is wrong............................................... 736
If your vehicle becomes stuck .... 805
If your vehicle has to be stopped in an emergency ............................. 729
If your vehicle needs to be towed .......................................730
If your vehicle overheats ...............800 Emergency flashers .............................728
Energy monitor .........................................112
Engine
Accessory mode .................................194
Compartment .....................................663
Engine switch ........................................193
Hood....................................................... 660
How to start the hybrid system ....193
Identification number ...................... 809
Ignition switch
(power switch) ..................................193
Overheating........................................ 800
Power switch .........................................193
Engine compartment cover..............664
Engine coolant ...................................... 668 Capacity .................................................. 813
Checking .............................................. 668
Preparing and checking
before winter .................................... 342
Engine coolant temperature
gauge .......................................................... 91
Engine oil ................................................. 665
Capacity .................................................... 811
Checking ...............................................665
Oil level warning message ........... 759
Oil pressure warning message........................... 748
Preparing and checking
before winter .................................... 342
Engine oil maintenance data ........... 650
Engine switch........................................... 193
EPS (Electric Power Steering) ....... 308
Function ................................................. 308
Warning light ....................................... 738
Warning message............................. 752
EV drive mode ...................................... 200
Event data recorder (EDR).....................11
E
GS450h_OM_OM30D52U_(U).book Page 872 Monday, July 29, 2013 12:07 PM

875Alphabetical index
GS450h_OM_OM30D52U_(U)
I/M test ..................................................... 656
IdentificationEngine..................................................... 809
Vehicle ................................................... 809
Ignition switch (power switch) ..........193
Illuminated entry system .................... 599
Immobilizer system...................................81
Indicators .................................................... 89
Initialization
Maintenance........................................ 650
Moon roof ...............................................172
Power windows ................................... 168
Tire pressure warning system................................679
Initiators (tire pressure
warning system).................................685
Inside door handle lights ................... 597
Inside rear view mirror .........................162
Instrument panel light control ............ 93
Interior lights........................................... 597
Intuitive parking assist.......................... 281
Function ................................................... 281
Warning message ................ 749, 760 Jack
Positioning a floor jack......................661
Vehicle-equipped jack ................... 776
Jack handle ................................................. 776
Jam protection function
Moon roof ................................................. 171
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........ 793
Key number plate ................................120
Keyless entry ............................... 123, 136
Mechanical key.....................................120
Power switch .........................................193
Replacing the battery ...................... 694
Warning buzzer ................................... 127
Wireless remote control key .........136
Knee airbags ..............................................39
IJ
K
GS450h_OM_OM30D52U_(U).book Page 875 Monday, July 29, 2013 12:07 PM

879Alphabetical index
GS450h_OM_OM30D52U_(U)
Pre-Collision System (PCS) ............. 315Function ................................................... 315
PCS OFF switch ................................. 316
Warning light ....................................... 739
Warning message ........................749, 761, 767
Radar cruise control (dynamic radar cruise control) ........................ 240
Radiator .................................................... 670
Radio.......................................................... 434
RBDS (Radio Broadcast Data Systems)..................................... 437
Rear air conditioning system ........... 404
Rear door sunshades .......................... 622
Rear personal lights.............................598
Rear side marker lights ........................ 217 Light switch ............................................. 217
Replacing light bulbs ........................ 723
Welcome light illumination control ..........................123
Rear seat heaters....................................616
Rear sunshade .........................................621 Operation ............................................... 621
Reverse operation feature............. 622 Rear turn signal lights ......................... 209
Replacing light bulbs ......................... 721
Turn signal lever ................................. 209
Wattage ...................................................817
Rear view mirror Inside rear view mirror...................... 162
Outside rear view mirrors ..............164
Rear view monitor system .................294
Rear window defoggers.................... 409
Refueling.................................................... 231
Capacity .................................................. 810
Fuel types................................................ 810
Opening the fuel tank cap ............ 233
When the fuel filler door cannot be opened ......................... 234
Regenerative braking............................. 74
Remote Touch ....................................... 350
Remote Touch screen........................ 352
Replacing Electronic key battery ..................... 694
Fuses ........................................................696
Light bulbs............................................... 713
Tires .......................................................... 775
Reporting safety defects
for U.S. owners .................................. 846
Reset the maintenance data ............ 650
Road accident cautions ......................... 79
R
GS450h_OM_OM30D52U_(U).book Page 879 Monday, July 29, 2013 12:07 PM

885Alphabetical index
GS450h_OM_OM30D52U_(U)
Warning lights .......................................... 87ABS ...........................................................738
AFS OFF indicator ............................ 739
Brake hold operated
indicator .............................................. 739
Brake system............................ 737, 740
Charging system................................738
Electric power steering...................738
Low fuel level .......................................740
Malfunction indicator lamp ...........738
Master warning light.........................740
Open door ............................................740
Parking brake indicator .................. 739
Pre-collision system.......................... 739
Seat belt reminder light ...................740
Slip indicator .........................................739
SRS ............................................................738
Tire pressure ..........................................741
Warning messages ...............................747
Warning reflector storage belt.......608
Washer ..................................................... 223 Checking................................................ 672
Low washer fluid warning message ...........................765
Preparing and checking before winter .................................... 342
Switch....................................................... 223
Washing and waxing........................... 642
Weight Cargo capacity .................................... 190
Load limits............................................... 190
Weight....................................................808
Welcome light illumination control......................................................123
Wheels Replacing wheels .............................. 690
Size ............................................................. 816 Window glasses...................................... 167
Window lock switch.............................. 167
Windows.................................................... 167
Power windows.................................... 167
Rear window defogger ..................409
Windshield wiper de-icer ................... 410
Windshield wipers ................................223 Position ................................................... 345
Rain-sensing windshield wipers................................................... 223
Winter driving tips ................................342
Wireless remote control key............. 136 Battery-Saving Function .................. 129
Locking/Unlocking ............................136
Replacing the battery ...................... 694
WMA disc............................................... 459
XM
® Satellite Radio ............................444
X
GS450h_OM_OM30D52U_(U).book Page 885 Monday, July 29, 2013 12:07 PM