key battery LEXUS LS600H 2017 Owner's Manual

6057-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of
the electronic key to the power
switch.
If any of the doors is opened or closed
after the key was touched to the
switch to start the vehicle, an alarm
will sound to indicate that the start
function cannot detect the key.
Press the power switch within 10 seconds of the buzzer sounding,
keeping the brake pedal depressed.
In the event that the hybrid system still cannot be started, contact any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
■Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when stop-
ping 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 is depleted. ( P. 532)
■Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the
alarm may be triggered.
■Changing power switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
power switch.
The hybrid system does not start and modes will be changed each time the switch is
pressed. ( P. 248)
Starting the hybrid system
1
2
3

6077-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
If you have a set of jumper (or booster) cables and a second vehicle with a
12-volt battery, you can jump start your vehicle by following the steps
below.
Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the sit-
uation, the alarm may activate and
doors locked. (P. 105)
Open the trunk lid and remove the 12-volt battery cover. ( P. 502)
In the event that the trunk opener cannot be used, use the mechanical key to open
the trunk. ( P. 603)
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 also call any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
1
2

6097-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
■When the 12-volt battery is removed or discharged
The hybrid system may not start. ( P. 504)
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of certain elec-
trical appliances. If the vehicle is left for a long time, the 12-volt battery may dis-
charge, and the hybrid system may be unable to start. (The 12-volt battery recharges
automatically while the hybrid system is operating.)
■When recharging or replacing the 12-volt battery
In some cases, it may not be possible to unlock the doors using the smart entry &
start system when the 12-volt battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors.
■If the 12-volt battery is discharged
The information stored in the computer will be deleted.
If the 12-volt battery is discharged, have the vehicle inspected by your Lexus dealer.

648
LS600h/LS600hL_EE(OM50G20E)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys
can be made by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional. ( P. 143)
●If you lose your electronic keys, the risk of vehicle theft
increases significantly. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately. ( P. 148)
●Is the electronic key battery weak or depleted? (P. 532)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( P. 248)
●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. 159)
If you have a problem, check the following before contacting any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked

650What to do if... (Troubleshooting)
LS600h/LS600hL_EE(OM50G20E)
●Did you press the power switch while firmly depressing the
brake pedal? ( P. 247)
●Is the shift lever in P? (P. 247)
●Is the electronic key anywhere detectable inside the vehicle?
( P. 153)
●Is the steering wheel unlocked? (P. 249)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary
way. ( P. 605)
●Is the 12-volt battery discharged? (P. 607)
●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. 259)
●It is locked automatically to prevent theft of the vehicle.
( P. 249)
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

656Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Card key.................................................... 140
Care ............................................... 476, 480
Aluminum wheels .............................. 477
Exterior.................................................... 476
Interior .................................................... 480
Seat belts................................................. 481
Cargo hooks ........................................... 442
Cargo net................................................. 442
Caution label .............................................89
Chains .......................................................386
Child restraint system ............................ 64
Baby seats, definition .......................... 64
Baby seats, installation ....................... 76
Child seats, definition.......................... 64
Child seats, installation....................... 76
Installing CRS with ISOFIX
rigid anchors........................................ 79
Installing CRS with seat belts.......... 76
Installing CRS with top strap ..........80
Junior seats, definition ........................ 64
Junior seats, installation ..................... 78
Child safety ................................................ 63
12-volt battery
precautions ............................ 504, 610
Airbag precautions ..............................52
Child restraint system .........................64
Climate control seat
precautions ....................................... 460
Heated steering wheel
precautions ....................................... 455
How your child should
wear the seat belt......................45, 46
Installing child restraints ..................... 74
Moon roof precautions ...................232
Power window lock switch ...........225
Power window precautions.......... 227
Rear door child-protectors .............177
Removed electronic key
battery precautions....................... 534
Seat belt comfort guide..................... 45
Seat belt precautions.......................... 48
Seat heater precautions ................. 460
Trunk precautions ..............................183
Child-protectors .................................... 177
Cigarette lighter ................................... 449
Cleaning........................................476, 480
Aluminum wheels............................... 477
Exterior ................................................... 476
Interior.....................................................480
Seat belts ................................................. 481
C

659Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Eco drive mode ..................................... 334
Electric motor (traction motor) .........85
Electric Power Steering (EPS)........339
Function ..................................................339
Warning light ....................................... 557
Electronic key.......................................... 140
If the electronic key does not
operate properly ........................... 603
Replacing the battery....................... 532
Electronically modulated air
suspension ............................................ 336
Emergency brake signal ....................339
Emergency flashers .............................546
Emergency, in case of
If a warning message is
displayed ............................................563
If the 12-volt battery is
discharged.........................................607
If the electronic key does not
operate properly ........................... 603
If the hybrid system will not
start ........................................................ 597
If the parking brake cannot
be released....................................... 599
If the warning buzzer sounds ..... 555
If the warning light turns on ......... 555
If you have a flat tire..............567, 578
If you think something
is wrong .............................................. 554
If your vehicle becomes stuck ...... 616
If your vehicle has to be
stopped in an emergency ......... 547
If your vehicle needs to
be towed ............................................ 548
If your vehicle overheats....................611
Emergency tire puncture
repair kit ................................................ 578
Energy monitor ........................................ 131
Engine
ACCESSORY mode ..................... 248
Compartment ..................................... 492
Engine switch ....................................... 247
Hood ....................................................... 489
How to start the hybrid
system................................................... 247
Identification number......................... 621
If the hybrid system will not
start ....................................................... 597
Ignition switch
(power switch) ................................. 247
Overheating ............................................611
Power switch ........................................ 247
E

663Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Identification ............................................ 621
Engine........................................................621
Vehicle ......................................................621
Ignition switch (power switch)......... 247
Illuminated entry system ....................430
Immobilizer system ................................. 96
Indicators..................................................... 113
Initialization
Moon roof ............................................... 231
Power windows.................................. 226
Tire pressure warning
system ................................................. 508
Initiators (tire pressure warning
system) ................................................... 523
Inside door handle lights .................... 427
Inside rear view mirror ........................ 219
Instrument panel light control ............ 117
Instrument panel ornament
lights ........................................................ 427
Interior lights ...........................................428
Front interior light ..............................428
Rear interior light ...............................428
Interior lights list .................................... 427
Intrusion sensor and tilt sensor ........ 106
ISOFIX rigid anchors............................. 74
Jack
Positioning the jack .......................... 490
Vehicle-equipped jack........568, 581
Jack handle .................................. 568, 581
Jam protection function
Moon roof ............................................. 230
Power trunk lid ..................................... 182
Power window ....................................226
Rear door sunshade ........................ 470
Keyless entry ............................................149
Smart entry & start system ............. 149
Wireless remote control ................... 171
Keys............................................................. 140
Electronic key........................................ 140
Engine switch ....................................... 247
If the electronic key does not
operate properly ............................ 603
If you lose your keys ............... 143, 148
Key number plate ................................ 140
Keyless entry..................................149, 171
Mechanical key ...................................... 141
Power switch ........................................ 247
Replacing the battery ...................... 532
Warning buzzer................................... 154
Wireless remote control key........... 171
Knee airbags ............................................. 49
IJ
K

668Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Rear turn signal lights.......................... 262
Replacing light bulbs........................ 543
Turn signal lever ................................. 262
Rear view mirror
Inside rear view mirror......................219
Outside rear view mirrors............... 221
Rear window defogger ..................... 425
Refueling ..................................................285
Capacity ................................................. 622
Fuel types ............................................... 622
If the fuel filler door cannot
be opened ........................................ 288
Opening the fuel tank cap ............ 287
Regenerative braking ............................ 87
Remote Touch .......................................390
Remote Touch screen .......................390
Replacing
Electronic key battery...................... 532
Fuses ........................................................535
Light bulbs...............................................541
Tires .......................................................... 567
Retractable table .................................. 462
Road accident cautions......................... 93
Seat belt reminder light .....................558
Seat belts..................................................... 44
Adjusting the seat belt ....................... 45
Child restraint system
installation ..............................................76
Cleaning and maintaining
the seat belt......................................... 481
Emergency locking retractor
(ELR)........................................................46
How to wear your seat belt .............44
How your child should wear
the seat belt...........................................46
Pre-crash seat belts .............................46
Pregnant women, proper
seat belt use .......................................... 47
Reminder light and buzzer...........558
Seat belt pretensioners...................... 45
SRS warning light .............................. 556
Seat cushion airbag ................................ 50
Seat heaters ............................................ 457
Seat position memory............... 207, 212
S

675Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Washer....................................................... 281
Checking ................................................ 501
Preparing and checking
before winter ....................................384
Switch ....................................................... 281
Washing and waxing ........................... 476
Weight.......................................................620
Welcome light illumination
control ..................................................... 150
Wheels ...................................................... 527
Replacing ............................................... 527
Size........................................................... 630
Window glasses .................................... 225
Window lock switch ............................ 225
Windows .................................................. 225
Power windows.................................. 225
Rear window defogger................... 425
Windshield wiper de-icer.................. 426
Windshield wipers................................. 281
Winter driving tips ................................384
Wireless remote control key .............. 171
Locking/Unlocking ..............................171
Replacing the battery....................... 532