2010 Lexus IS F key battery

5
When trouble arises
463
5-2. Steps to take in an emergency
10_IS F_U
Once
(Comes on for 10 seconds.)
(Flashing)
Indicates that the
key battery is low.Replace the bat-
tery. (→P. 4 0 6 )

Indicates that the
“ENGINE START
STOP” switch has
been turned
twice to ACCES-
SORY mode
without starting
the engine when
a closed door is
opened.
Press the
“ENGINE START
STOP” switch
while applying the
brakes.

(Flashing)
Indicates that the
steering lock has
not released
within 3 seconds
of pressing the
“ENGINE START
STOP” switch.Press the
“ENGINE START
STOP” switch
again while turn-
ing the steering
wheel with the
brake pedal
depressed.
Interior
buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure

464
5-2. Steps to take in an emergency
10_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. 3 0 )
OnceIndicates that the
electronic key
does not operate
properly.
→P. 4 7 8
Once
Interior
buzzerExterior buzzerWarning messageDetailsCorrection
procedure

5
When trouble arises
477
5-2. Steps to take in an emergency
10_IS F_U
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked functions
Doors
Remove the cover on the driver’s
door handle using the mechanical
key (→P. 23) in order to perform
the following operations.
Locks all 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)
Return the cover to the original
position after use.
If communication between the electronic key and vehicle is interrupted
( → P. 30) 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.

5
When trouble arises
479
5-2. Steps to take in an emergency
10_IS F_UTo change “ENGINE START STOP” switch modes: Within 10
seconds of the buzzer sounding, release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed. (
→P. 1 2 4 )
To start the engine: 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.
■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. 406)
STEP3

529
Alphabetical index
10_IS F_U
Back-up lightsWattage .................................................498
Battery Checking ............................................... 382
If the vehicle has a discharged battery..................................................480
Preparing and checking before winter ...................................... 192
Bluetooth
® audio..................................257
Bluetooth® phone ................................ 275
Bottle holders .......................................... 315
Brake Fluid ..........................................................380
Parking brake ........................................ 137
Brake assist ............................................... 177
Care Exterior ................................................... 354
Interior..................................................... 357
Seat belts ...............................................358
Cargo capacity ...................................... 188
Cargo hooks .......................................... 332
CD changer ............................................. 218
CD player.................................................. 218
Chains......................................................... 192 Child restraint system
Booster seats, definition .................. 102
Booster seats, installation ...............108
Convertible seats, definition .......... 102
Convertible seats, installation .......108
Front passenger occupant
classification system ......................... 97
Infant seats, definition ........................ 102
Infant seats, installation .....................108
Installing CRS with lower
anchorages......................................... 107
Installing CRS with seat belts ........ 108
Installing CRS with top straps......... 112
Child safety
Airbag precautions .............................. 92
Battery precautions ............. 383, 482
Child restraint system ....................... 102
Child-protectors ...................................40
How your child should wear the seat belt ..........................................60
Installing child restraints................... 106
Moon roof precautions...................... 74
Power window lock switch ..............69
Power window precautions ............ 70
Removed electronic key battery precautions........................................407
Seat belt comfort guide .................... 58
Seat belt extender precautions...... 62
Seat belt precautions ............................61
Seat heater precautions..................326
Trunk precautions................................. 45
B
C

531
Alphabetical index
10_IS F_U
Emergency, in case ofIf the engine will not start ................474
If the shift lever cannot be shifted from P ................................... 475
If the vehicle has a discharged battery..................................................480
If the warning buzzer sounds........ 441
If the warning light turns on ............ 441
If a warning message is displayed .............................................. 451
If you have a flat tire ........................ 465
If you lose your keys ........................ 476
If you think something is wrong....................................................437
If the electronic key does not operate properly .............................477
If your vehicle becomes stuck ....486
If your vehicle needs to be towed ..................................................... 431
If your vehicle overheats................ 483
Engine ACCESSORY mode ....................... 124
Compartment ......................................372
Engine switch ........................................ 124
Hood ....................................................... 369
How to start the engine.................... 124
Identification number.......................489
If the engine will not start ................474
Ignition switch........................................ 124
Overheating......................................... 483
Engine compartment cover..............373 Engine coolant
Capacity .................................................493
Checking ...............................................378
Preparing and checking
before winter ......................................192
Engine coolant temperature
gauge....................................................... 139
Engine immobilizer system.................. 78
Engine oil Capacity .................................................492
Checking ............................................... 374
Preparing and checking
before winter ......................................192
Engine oil maintenance data............ 376
EPS ............................................................... 177
Event data recorder ............................ 439
First-aid kit storage belt ..................... 332
Floor mat ................................................... 331
Fluid
Brake ....................................................... 380
Washer .................................................. 385
Fog lights Switch........................................................ 153
Wattage ................................................. 498
Footwell lights ........................................306
Front fog lights Switch........................................................ 153
Wattage ................................................. 498
Front passenger occupant
classification system ............................ 97
F

534
Alphabetical index
10_IS F_U
Outside rear view mirrorsAdjusting and folding ......................... 67
Mirror position memory ................... 48
Outside temperature display.............147
Overhead console ................................ 312
Overhead courtesy lights
Overhead courtesy lights .............306
Wattage..................................................498
Overheating, Engine ...........................483
Parking assist sensors ............................ 171
Parking brake .......................................... 137
Parking lights Replacing light bulbs........................ 424
Switch ....................................................... 150
Wattage..................................................498
PCS ............................................................. 184
Personal lights Switch ..................................................... 308
Power outlet............................................ 324
Power windows ........................................ 69
Pre-collision system.............................. 184
Radar cruise control ...............................161
Radiator ................................................... 380
Radio ........................................................... 210
RDS ............................................................. 212
Rear turn signal lights
Replacing light bulbs........................ 424
Wattage..................................................498
Rear view mirror Compass ................................................. 341
Rear window de fogger.......................206 Replacing
Electronic key battery ..................... 406
Fuses........................................................ 408
Light bulbs .............................................424
Reporting safety defects for U.S. owners.......................................... 522
Safety connect ....................................... 345
Seat belts Adjusting the seat belt ....................... 58
Automatic locking retractor ........... 59
Child restraint system
installation ............................................106
Cleaning and maintaining
the seat belts .................................... 358
Emergency locking retractor......... 59
How to wear your seat belt .............57
How your child should wear
the seat belt.......................................... 60
Pregnant women,
proper seat belt use ........................ 59
Reminder light......................................444
Seat belt extenders.............................. 60
Seat belt pretensioners ..................... 58
Seat heaters ............................................ 325
Seat position memory............................ 52
Seating capacity....................................... 191
Seats Adjustment ............................................... 47
Adjustment precautions .................... 47
Child seats/child restraint system installation ............................106
Cleaning .................................................357
Driver’s seat position memory ...... 48
Front passenger seat position memory ..................................................52
P
R
S

537
Alphabetical index
10_IS F_U
Warning messagesAutomatic transmission
fluid ........................................................ 455
Dynamic radar
cruise control .......................453, 455
Engine oil level .................................... 455
Engine oil maintenance.................. 455
Engine oil pressure........................... 452
Engine oil temperature................... 452
Hood ....................................................... 455
Intuitive parking assist .........453, 455
Moon roof............................................. 455
Open door ........................................... 455
Parking brake ...................................... 455
Pre-collision system .............453, 455
Smart access system with
push-button start.............................. 461
Steering lock ........................................ 453
Trunk ........................................................ 455
Washer fluid......................................... 455
Washer Checking ...............................................385
Preparing and checking before winter ...................................... 192
Switch ........................................................ 154
Washing and waxing .......................... 354 Weight
Cargo capacity ....................................188
Load limits ................................................ 191
Weight.................................................... 488
Wheels ....................................................... 401
Window glasses ...................................... 69
Window lock switch ............................... 69
Windows Power windows .....................................69
Rear window defogger.................. 206
Washer .................................................... 154
Windshield wipers................................. 154
Wireless remote control key Replacing the battery...................... 406
WMA disc ............................................... 225