key battery Lexus GS450h 2010 Using The Audio System / LEXUS 2010 GS450H (OM30C81U) Owner's Manual

5
When trouble arises
577
5-2. Steps to take in an emergency
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
■Stopping the hybrid system
Shift the shift lever to “P” and press the “POWER” switch as you normally do when
stopping the hybrid system.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery depletes. (P. 4 9 4 )

578
5-2. Steps to take in an emergency
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
If the 12 volt battery is discharged
The following procedures may be used to start the hybrid system if the 12
volt battery is discharged.
You can call your Lexus dealer or qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle
with a 12 volt battery, you can jump start your Lexus following the steps
below.
Open the trunk using the mechanical key. (
P. 5 76 )
Remove the left-hand cover in
the trunk.
Connect the jumper cables.
Positive (+) battery terminal on your vehicle.
Positive (+) battery terminal on the second vehicle.
Negative (-) battery terminal on the second vehicle.
Negative (-) battery terminal on your vehicle.STEP1
STEP2
STEP3

631
Alphabetical index
GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Back-up lights
Wattage ................................................. 597
Battery
12 volt battery ...................................... 470
Checking ............................................... 470
Hybrid battery 
(Traction battery) .............................. 28
If the 12 volt battery is 
discharged ........................................ 578
Preparing and checking 
before winter .................................... 233
Bluetooth
® audio ................................... 321
Bluetooth® phone ............................... 345
Brake
Fluid .......................................................... 468
Parking brake ........................................159
Brake assist ............................................... 214
Care
Exterior ....................................................442
Interior..................................................... 445
Seat belts ............................................... 446
Cargo capacity ..................................... 228
Cargo hooks ............................................ 421
CD player/changer ............................ 282
Chains........................................................234
Child-protectors ......................................56
Child restraint system
Definition.................................................. 124
Installation................................................ 128
Installing CRS with lower 
anchors ................................................. 129
Installing CRS with seatbelts ...........131
Installing CRS with top straps .......135Child safety
Airbag precautions .............................. 114
Battery precautions ............. 472, 580
Child restraint system ........................124
Child-protectors ...................................56
How your child should wear 
the seatbelt............................................ 78
Installing child restraints................... 128
Moon roof precautions...................... 93
Power window lock switch .............. 87
Power window precautions ............89
Removed electronic key battery 
precautions....................................... 495
Seat belt comfort guide ..................... 76
Seat belt precautions .......................... 79
Seat heater precautions.................. 414
Trunk precautions................................. 62
Cigarette lighter....................................... 411
Cleaning
Exterior.................................................... 442
Interior .....................................................445
Seat belts ................................................446
Clock ........................................................ 408
Coin holder .............................................403
Compass .................................................. 429
Condenser ..............................................468
Console box ............................................ 401
Cooling system
Engine overheating............................ 581
Cruise control
Cruise control......................................... 181
Dynamic radar cruise control....... 185
Cup holders ............................................404
Curtain shield airbags.......................... 107
Customizable features ........................ 615
B
C

632
Alphabetical index
GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Daytime running light system ............172
Defogger
Rear window ........................................268
Side mirror ............................................268
Dimension ............................................... 588
Dinghy towing ........................................239
Display
Energy flow.............................................. 29
Multi-information display................ 168
Touch screen ....................................... 242
Trip information ....................................169
Warning message............................. 543
Do-it-yourself maintenance .............454
Door courtesy lights ............................395
Door pocket........................................... 405
Doors
Door lock.................................. 41, 53, 55
Rear door child protector ................ 56
Driver’s seat belt reminder light .....536
Driver’s seat position memory ........... 67
Driving
Correct posture .................................. 105
Procedures ............................................ 140
DVD player/changer..........................293
Electric power steering ....................... 214
Electronic key
If the electronic key does 
not operate properly .................... 575
Replacing battery .............................. 494Emergency, in case of
If a warning light turns on .............. 534
If a warning message is 
displayed ............................................ 543
If the electronic key does 
not operate properly ................... 575
If the hybrid system 
will not start ........................................572
If the shift lever cannot be 
shifted from “P” ................................573
If the 12 volt battery is 
discharged ....................................... 578
If you have a flat tire ........... 560, 570
If you lose your keys .........................574
If you think something is 
wrong .................................................... 531
If your vehicle becomes stuck .... 584
If your vehicle has to be stopped 
in an emergency ............................586
If your vehicle needs to be 
towed ................................................... 523
If your vehicle overheats..................581
Energy monitor ........................................ 29
Engine
ACCESSORY mode......................... 151
Compartment ..................................... 460
Hood ........................................................457
How to start the 
hybrid system.....................................150
If the hybrid system 
will not start ........................................572
Overheating ..........................................581
Power (ignition) switch ....................150D
E

635
Alphabetical index
GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Mirrors
Inside rear view mirror ...................... 83
Side mirror heater ............................. 268
Side mirrors............................................. 85
Vanity mirrors ..................................... 407
Moon roof .................................................. 90
MP3 disc ................................................. 289
Multi-information display....................168
Noise from under the vehicle .............. 18
Odometer .................................................. 161
Oil
Engine oil ............................................... 462
Opener
Fuel filler door .........................................94
Hood ....................................................... 457
Trunk........................................................... 60
Outer foot lights ................................... 395
Outside rear view mirrors
Adjusting and folding ......................... 85
Mirror position memory ....................67
Outside temperature 
display .................................................... 409
Overhead console .............................. 402
Overheating, Engine ............................581Parking brake .......................................... 159
Parking lights
Replacing light bulbs ......................... 514
Switch.......................................................... 171
Wattage ..................................................597
Personal lights ........................................ 397
Portable music player .......................... 341
Power meter .............................................. 161
Power outlet............................................. 412
Power windows ........................................ 87
Power (ignition) switch........................ 150
Pre-collision system...............................221
Radar cruise control ............................. 185
Radiator ....................................................468
Radio .......................................................... 273
Radio data system ................................ 275
Rear sunshade ........................................ 416
Rear turn signal lights
Replacing light bulbs ......................... 514
Wattage ..................................................597
Rear view monitor system.................. 210
Rear window defogger ......................268
Replacing
Electronic key battery ......................494
Fuses........................................................ 496
Light bulbs .............................................. 514
Reporting safety defects for 
U.S. owners .......................................... 624
N
O
P
R

639
Alphabetical index
GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Washer
Checking ................................................474
Preparing and checking 
before winter .................................... 233
Switch ........................................................ 175
Washing and waxing ...........................442
Weight
Cargo capacity .................................. 228
Load limits ..............................................232
Weight ................................................... 588
Wheels ..................................................... 489
Window glasses .......................................87
Window lock switch............................... 55
Windows
Power windows .................................... 87
Rear window defogger .................. 268
Washer ..................................................... 175
Windshield wipers
Position ................................................... 235
Windshield wipers .............................. 175
Windshield wiper de-icer ..................269
Winter driving tips ............................... 233
Wireless remote control key
Locking/Unlocking ............................. 53
Replacing the battery ...................... 494
WMA disc............................................... 289

640
GS_HV_U (OM30C81U)
February 1, 2010 11:14 am
What to do if...
What to do if...
A tire puncturesP. 5 6 0 /
570If you have a flat tire
The hybrid system does not start
P. 9 9Immobilizer system
P. 5 7 2If the hybrid system will not start
P. 5 7 8If the 12 volt battery is discharged
The shift lever cannot be 
moved outP. 5 7 3If the shift lever cannot be shifted 
from “P”
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming 
from under the hood
P. 5 8 1If your vehicle overheats
The key is lostP. 5 74If you lose your keys
The 12 volt battery runs outP. 5 7 8If the 12 volt battery is discharged
The doors cannot be lockedP. 5 5Doors
The horn begins to soundP. 1 0 1Alarm
The vehicle is stuck in mud or
sandP. 5 8 4If the vehicle becomes stuck