key battery Lexus IS250C 2014 Owner's Guide

5
When trouble arises
533
5-2. Steps to take in an emergency
IS250C/350C_U
■Avoiding a discharged battery
●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. 1 0 1 )
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.STEP5
STEP6

611
Alphabetical index
IS250C/350C_U
Back-up lightsWattage .................................................568
Battery Checking ................................................427
If the vehicle has a discharged battery.................................................. 532
Preparing and checking before winter .................................... 233
Bluetooth
® audio* .............................. 303
Bluetooth® phone*..............................322
Brake Fluid .......................................................... 425
Parking brake ........................................159
Brake assist ............................................... 214
Care
Exterior ................................................... 396
Interior.......................................................401
Seat belts ............................................... 402
Cargo capacity ......................................229
Cargo hooks ...........................................375
CD changer* ..........................................264
CD player* ..............................................264
Chains....................................................... 233 Child restraint system
Booster seats, definition ...................122
Booster seats, installation ................129
Convertible seats, definition ........... 122
Convertible seats, installation ........129
Front passenger occupant
classification system ......................... 117
Infant seats, definition ......................... 122
Infant seats, installation ......................129
Installing CRS with LATCH
anchors .................................................. 127
Installing CRS with seat belts .........129
Installing CRS with top straps........132
Child safety
Airbag precautions .............................. 112
Battery precautions ..............429, 534
Child restraint system ........................ 122
How your child should wear the seat belt .......................................... 73
Installing child restraints....................126
Power window lock switch ..............83
Power window precautions ........... 85
Removed electronic key battery precautions....................................... 450
Seat belt guide.......................................... 71
Seat belt extender precautions...... 75
Seat belt precautions .......................... 74
Seat heater precautions.................. 373
Trunk precautions................................. 53
B
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
C

613
Alphabetical index
IS250C/350C_U
Electric power steering ....................... 214
Electronic keyIf the electronic key does not operate properly ............................ 528
Emergency, in case of If a warning message is
displayed ........................................... 500
If the electronic key does not
operate properly ............................ 528
If the engine will not start ............... 524
If the retractable hardtop does not close .................................540
If the shift lever cannot be shifted from P ................................... 526
If the vehicle has a discharged battery.................................................. 532
If the warning buzzer sounds........ 491
If the warning light turns on ............ 491
If you have a flat tire ..........................513
If you lose your keys .........................527
If you think something is wrong................................................... 489
If your vehicle becomes stuck .... 539
If your vehicle has to be stopped in an emergency .........550
If your vehicle needs to be
towed ................................................... 483
If your vehicle overheats................ 536
Emergency flashers Switch ...................................................... 482 Engine
Compartment....................................... 416
Engine switch ......................................... 147
Hood ......................................................... 413
How to start the engine ....................147
Identification number ...................... 553
If the engine will not start................524
Ignition switch ........................................ 147
Overheating ........................................ 536
Engine compartment cover .............. 418
Engine coolant Capacity ................................................ 559
Checking ............................................... 423
Preparing and checking
before winter ....................................233
Engine coolant temperature
gauge......................................................... 161
Engine immobilizer system..................98
Engine oil Capacity ................................................ 556
Checking ...............................................420
Preparing and checking
before winter ....................................233
EPS .............................................................. 214
Event data recorder ............................... 22E
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

617
Alphabetical index
IS250C/350C_U
Odometer .................................................. 161
OilEngine oil ............................................... 420
Opener
Fuel filler door ........................................ 95
Hood ......................................................... 413
Trunk ............................................................. 51
Outer foot lights
Outer foot lights................................. 354
Wattage .................................................568
Outside rear view mirrors Adjusting and folding ..........................79
Mirror position memory ..................... 61
Outside temperature display............ 172
Overheating, Engine .......................... 536 Parking assist sensors*...................... 208
Parking brake .......................................... 159
Parking lights
Replacing light bulbs ....................... 468
Switch.........................................................176
Wattage ................................................. 568
PCS ............................................................ 222
Personal lights Switch...................................................... 355
Power outlet..............................................371
Power windows ........................................82
Pre-collision system............................. 222
Radar cruise control............................. 194
Radiator .................................................... 425
Radio*........................................................ 256
RDS* ..........................................................258
Rear turn signal lights
Replacing light bulbs ....................... 468
Wattage ................................................. 568
Rear view mirror Compass............................................... 384
Rear window defogger* ..................... 251
Replacing Electronic key battery ......................449
Fuses.......................................................... 451
Light bulbs ............................................ 468
Tires ........................................................... 513
Reporting safety defects for U.S. owners ..........................................592
Retractable hardtop ...............................86OP
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
R

621
Alphabetical index
IS250C/350C_U
Warning buzzersBrake system ......................................... 491
Open door .......................................... 493
Seat belt reminder ............................ 493
Warning lights Anti-lock brake system .................. 492
Brake assist system .......................... 492
Brake system ......................................... 491
Charging system ................................. 491
Electric power steering system
warning light ..................................... 492
Low fuel level....................................... 493
Malfunction indicator lamp .......... 492
Master warning light ........................ 493
Open door ........................................... 493
Pre-collision system ......................... 492
Pretensioners ...................................... 492
Seat belt reminder light .................. 493
SRS airbags .......................................... 492
Tire pressure warning
light........................................................ 493
Warning messages
Dynamic radar cruise control ........................501, 503
Engine oil level ....................................503
Engine oil maintenance..................503
Engine oil pressure.......................... 500
Hood .......................................................503
Intuitive parking assist ..........501, 503
Open door ...........................................503
Parking brake ......................................503
Pre-collision system ..............501, 503
Retractable hardtop ..............501, 503 Smart access system with
push-button start ............................. 510
Steering lock.......................................... 501
Trunk ....................................................... 503
Washer fluid ........................................ 503
Washer
Checking .............................................. 430
Preparing and checking before winter ....................................233
Switch........................................................ 182
Washing and waxing ........................... 396
Weight Cargo capacity ................................... 229
Load limits ............................................. 232
Weight.....................................................552
Wheels ...................................................... 445
Window glasses ...................................... 82
Window lock switch ...............................83
Windows Power windows ..................................... 82
Rear window defogger.................... 251
Washer .................................................... 182
Windshield wiper de-icer.................. 252
Windshield wipers................................. 182
Wireless remote control key Replacing the battery.......................449
WMA disc* ...............................................271W
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

622
IS250C/350C_U
What to do if...
What to do if...
A tire puncturesP. 5 1 3
P. 5 2 2If you have a flat tire
The engine does not start
P. 5 2 4If the engine will not start
P. 9 8Engine immobilizer system
P. 5 3 2If the vehicle battery is discharged
The shift lever cannot be
moved outP. 5 2 6If 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 3 6If your vehicle overheats
The key is lostP. 5 2 7If you lose your keys
The battery runs outP. 5 3 2If the vehicle battery is discharged
The doors cannot be lockedP. 4 7Doors
The horn begins to soundP. 1 0 0Alarm
The vehicle is stuck in mud or
sandP. 5 3 9If the vehicle becomes stuck
A warning message is displayedP. 5 0 0If a warning message is displayed