2014 Lexus IS F key battery

492
5-2. Steps to take in an emergency
IS F_U
*: If the engine does not start when the electronic key is inside the vehicle, theelectronic key battery may be depleted or there may be difficulties receiving the
signal from the key. ( →P. 36)
OnceIndicates that the
electronic key
does not operate
properly.
→P. 5 0 6
Once
Interior
buzzerExterior buzzerWarning messageDetailsCorrection
procedure

5
When trouble arises
505
5-2. Steps to take in an emergency
IS F_U
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked functions
Use the mechanical key built in to the electronic keys to operate the
doors. (→P. 2 9 )
Doors Remove the cover on the driver’s
door handle.
Locks all the doors
Closes the windows/moon roof
(turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows/moon roof
(turn and hold)
If communication between the electronic key and vehicle is interrupted
(→ P. 36) or the electronic key cannot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors and trunk can be
opened or the engine can be started by following the procedure below.
STEP1
STEP2

5
When trouble arises
507
5-2. Steps to take in an emergency
IS F_UTouch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
Press the “ENGINE START STOP” switch within 10 seconds
after the buzzer sounds, keeping the brake pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
STEP2
■Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
■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 3 6 )
■Changing “ENGINE START STOP” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
“ENGINE START STOP” switch.
The engine does not start and modes w ill be changed each time the switch is
pressed. ( →P. 1 3 9 )
STEP3

5
When trouble arises
509
5-2. Steps to take in an emergency
IS F_U
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine 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, etc.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehi-
cle is not in use, due to natural discharge and the draining effects of certain
electrical appliances. If the vehicle is left for a long time, the battery may dis-
charge, and the engine may be unable to start. (The battery recharges automat-
ically during driving.)
■When the battery is removed or discharged
Make sure that the key is not inside the vehicle when recharging or replacing the
battery. The key may be locked in the vehicle if the alarm is activated. (→P. 9 1 )
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch OFF.
Maintain the engine speed of the second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Lexus dealer
as soon as possible.STEP2
STEP3
STEP4
STEP5

571
Alphabetical index
IS F_U
BrakeFluid .............................................................. 411
Parking brake ........................................ 152
Brake assist ............................................... 201
Care
Exterior ................................................... 384
Interior.....................................................388
Seat belts ............................................... 389
Cargo capacity ....................................... 214
Cargo hooks ...........................................362
CD changer* ..........................................245
CD player* ..............................................245
Chains......................................................... 218
Child restraint system Booster seats, definition.....................113
Booster seats, installation ..................119
Convertible seats, definition ............113
Convertible seats, installation .........119
Front passenger occupant
classification system ...................... 108
Infant seats, definition ..........................113
Infant seats, installation........................119
Installing CRS with lower
anchorages .......................................... 118
Installing CRS with seat belts ..........119
Installing CRS with top straps ....... 123
Child safety
Airbag precautions ............................103
Battery precautions................. 415, 510
Child restraint system .........................113
Child-protectors.................................... 47
How your child should wear the seat belt .......................................... 68 Installing child restraints..................... 117
Moon roof precautions......................84
Power window lock switch .............. 78
Power window precautions ........... 80
Removed electronic key battery
precautions........................................ 437
Seat belt comfort guide .....................66
Seat belt extender precautions...... 70
Seat belt precautions ..........................69
Seat heater precautions................. 355
Trunk precautions................................. 53
Child-protectors ...................................... 47
Cigarette lighter....................................352
Cleaning
Exterior................................................... 384
Interior .................................................... 388
Seat belts ............................................... 389
Clock ......................................................... 347
Coat hooks ..............................................359
Compass .................................................. 372
Condenser ................................................. 411
Console box ...........................................340
Cooling system Engine overheating.............................. 511
Cornering assist sensors .................... 195
Cruise control Cruise control........................................ 177
Dynamic radar cruise control......... 181
Cup holders ............................................ 342
Curtain shield airbags............................ 96
Customizable features .......................544
C
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

572
Alphabetical index
IS F_U
Daytime running light system ........... 168
Defogger*Rear window........................................ 232
Side mirrors .......................................... 232
Dimension ................................................. 518
Dinghy towing ......................................... 221
Display Dynamic radar crui se control ........ 181
Satellite switch mode .......................348
Trip information .................................... 162
Warning message............................. 479
Do-it-yourself maintenance ............. 397
Door courtesy lights Door courtesy lights......................... 334
Wattage..................................................528
Door pockets..........................................344
Doors Door lock.................................32, 43, 46
Door windows ....................................... 78
Side mirrors ............................................. 76
Driver's seat belt reminder light ..... 472
Driving Correct posture .................................... 94
Procedures .............................................128
Driving position memory ...................... 56
Electric power steering ....................... 201
Electronic key If the electronic key does not operate properly ........................... 505
Emergency flashers Switch ......................................................460
Emergency, in case of If a warning message is
displayed ............................................ 479 If the electronic key does not
operate properly............................505
If the engine will not start ............... 502
If the shift lever cannot be shifted from P................................... 503
If the vehicle has a discharged
battery .................................................508
If the warning buzzer sounds...... 469
If the warning light turns on.......... 469
If you have a flat tire ........................ 493
If you lose your keys ........................ 504
If you think something is
wrong ...................................................467
If your vehicle becomes stuck ...... 514
If your vehicle has to be stopped in an emergency ...........515
If your vehicle needs to be towed ..................................................... 461
If your vehicle overheats....................511
Engine
ACCESSORY mode....................... 138
Compartment ..................................... 403
Engine switch ........................................ 138
Hood ....................................................... 400
How to start the engine ................... 138
Identification number ........................ 519
If the engine will not start ............... 502
Ignition switch ....................................... 138
Overheating ............................................511
Engine compartment cover ............. 404
Engine coolant Capacity ................................................ 523
Checking............................................... 409
Preparing and checking
before winter...................................... 218D
E

576
Alphabetical index
IS F_U
Radar cruise control ...............................181
Radiator ....................................................... 411
Radio* ........................................................ 237
RDS* .......................................................... 239
Rear turn signal lightsReplacing light bulbs........................ 454
Wattage..................................................528
Rear view mirror
Compass ............................................... 372
Rear window defogger* .................... 232
Replacing Electronic key battery...................... 436
Fuses ........................................................438
Light bulbs............................................. 454
Reporting safety defects for U.S. owners ..........................................552
Safety connect ....................................... 376
Seat belts Adjusting the seat belt........................ 66
Automatic locking retractor............ 67
Child restraint system
installation ..............................................117
Cleaning and maintaining
the seat belts .....................................389
Emergency locking retractor ......... 67
How to wear your seat belt............. 65
How your child should wear
the seat belt .......................................... 68
Pregnant women,
proper seat belt use......................... 67
Reminder light ......................................472
Seat belt extenders .............................. 68
Seat belt pretensioners...................... 66 Seat heaters ............................................ 354
Seat position memory............................ 60
Seating capacity...................................... 217
Seats
Adjustment .............................................. 55
Adjustment precautions ................... 55
Child seats/child restraint system installation .............................. 117
Cleaning ................................................388
Driver’s seat position memory ...... 56
Front passenger seat position memory ................................................. 60
Head restraints ....................................... 62
Properly sitting in the seat.................94
Seat heaters ......................................... 354
Service reminder indicators ............ 158
Shift lever If the shift lever cannot be
shifted from P................................... 503
Transmission.......................................... 142
Shift lever light ....................................... 334
Shift lock system....................................503
Shopping bag hooks ........................... 362
Side airbags ............................................... 96
Side marker lights Switch........................................................ 166
Side mirrors Adjusting and folding .......................... 76
Mirror position memory ................... 56
Smart access system with
push-button start Entry function .......................................... 32
Starting the engine.............................. 138
“SOS” button.......................................... 376R
S

580
Alphabetical index
IS F_U
WeightCargo capacity..................................... 214
Load limits ............................................... 217
Weight ..................................................... 518
Wheels ......................................................432
Window glasses ...................................... 78
Window lock switch ............................... 78
Windows Power windows..................................... 78
Rear window defogger .................. 232
Washer ..................................................... 172
Windshield wipers..................................172
Windshield wiper de-icer..................233
Wireless remote control key
Replacing the battery ...................... 436
WMA disc* ............................................. 252
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.