2015 Lexus IS300h warning light

5598-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D56E)
■Run-flat tires (A “RFT” or “DSST” mark is molded on the sidewall)
Take your vehicle to the nearest
Lexus dealer or authorized tire
dealer as soon as possible if any tire
goes flat.
The vehicle can be driven for a maxi-
mum of 300 km (186 miles) at a
speed below 60 km/h (37 mph)
after the tire pressure warning light
comes on. (→P. 5 2 3 )
■In some conditions (such as at high temperatures)
You cannot continue driving for up to 300 km (186 miles).
■For the detailed information on run-flat tires
See the tire warranty booklet.
If you have a flat tire (vehicles with run-flat tires)
Your vehicle is not equipped with a sp are tire, but instead you can continue
driving the vehicle with run-flat tires even if any tire goes flat.In this case, slow
down and drive with extra caution.
NOTICE
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve and trans-
mitter, contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional as the tire pressure warning valve and transmitter may be dam-
aged if not handled correctly.
■When driving over bumps
If a vehicle has a flat tire, the vehicle height will be lower than usual. Ensure that nothing
strikes the bottom of the vehicle.
■To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants , the tire pressure warning valve and trans-
mitter may not operate properly. If a liquid sealant is used, contact any authorized
Lexus dealer or repairer, or another duly qu alified and equipped professional or other
qualified service shop as soon as possible. Make sure to replace the tire pressure warn-
ing valve and transmitter when replacing the tire. ( →P. 4 6 8 )

5949-2. Customization
IS300h_EE(OM53D56E)
■Door lock ( →P. 136, 143, 563)
■Smart entry & start system and wireless remote control ( →P. 136, 143)
FunctionDefault settingCustomized setting
Unlocking using a mechani-
cal keyAll doors
unlocked in one stepDriver's door
unlocked in one step, all doors unlocked in
two steps
——O
Speed-detecting automatic
door lock functionOnOffO—O
Shifting gears to position
other than P locks all doorsOffOnO—O
Shifting gears to P unlocks all
doorsOffOnO—O
Opening driver's door
unlocks all doorsOnOffO—O
Locking/unlocking of the
trunk when all doors are
locked/unlockedOnOff——O
123
FunctionDefault settingCustomized setting
Operation signal
(Emergency flashers)OnOffO—O
Ti m e e l a p s e d b e f o r e a u t o -
matic door lock function is
activated if door is not
opened after being unlocked
30 seconds
60 seconds
——O120 seconds
Open door warning buzzerOnOff——O
Welcome light illumination
controlOnOff——O
123

606What to do if... (Troubleshooting)
IS300h_EE(OM53D56E)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( →P. 1 8 5 )
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a period of time.
(→ P. 2 1 4 )
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( →P. 5 2 3 )
●The parking brake indicator is on
Is the parking brake released? ( →P. 2 2 7 )
Depending on the situation, other types of warning buzzer may also sound.
( → P. 5 2 1 , 5 2 7 )

●Did anyone inside the vehicle open a door or anything move inside the vehicle
during setting the alarm?
The sensor detects them and the alarm sounds. ( →P. 9 6 )
Do one of the following to deactivate or stop the alarm: • Unlock the doors or open the trunk using the entry function or wireless
remote control.
• Start the hybrid system. The windows do not open or close by operating the power window
switches
The power switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and th
e horn sounds (if equipped)

607What to do if... (Troubleshooting)
IS300h_EE(OM53D56E)
●Is the message displayed on the multi-information display?
Check the message on the multi-information display. (→P. 5 2 7 )
●When a warning light turns on or a warning message is displayed, refer to
P. 5 2 1 , 5 2 7 .
●Vehicles with an emergency tire puncture repair kit
Stop the vehicle in a safe place and repair the flat tire temporarily with the
emergency tire puncture repair kit. ( →P. 5 4 5 )
●Vehicles with run-flat tires
Slow down and drive with extra caution. Take your vehicle to the nearest
Lexus dealer or authorized tire dealer to have the flat tire replaced.
(→ P. 559)
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(→ P. 5 7 5 )
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

608
IS300h_EE(OM53D56E)Alphabetical index
Alphabetical index
A/C ............................................................. 412
Air conditioning filter....................... 486
Automatic air conditioning system .................................................... 412
S-FLOW mode....................................414
Blower customization .......................419
AAC disc .................................................354
ABS (Anti-lock Brake System) ....... 296 Function ..................................................296
Warning light ....................................... 522
Accent color .............................................. 117
Adaptive Variable Suspension system .................................................... 297
Air conditioning filter ..........................486
Air conditioning system ...................... 412 Air conditioning filter....................... 486
Automatic air conditioning system .................................................... 412
S-FLOW mode....................................414
Blower customization .......................419 Airbags ........................................................ 43
Airbag manual on-off system......... 54
Airbag operating conditions ...........49
Airbag precautions for
your child .............................................. 45
Correct driving posture.................... 36
Curtain shield airbag operating conditions ..............................................49
Curtain shield airbag precautions ........................................... 47
General airbag precautions ........... 45
Locations of airbags ............................43
Modification and disposal of airbags.................................................... 48
Side airbag operating conditions ..............................................49
Side airbag precautions.................... 45
Side and curtain shield airbags operating conditions ........................49
Side and curtain shield airbags
precautions .......................................... 45
SRS airbags ..............................................43
SRS warning light ...............................522
A

609Alphabetical index
IS300h_EE(OM53D56E)
Airbag manual on-off system ............. 54
Alarm ............................................................ 96
Anchor brackets ...................................... 69
Antennas (smart entry & start system) ......................................... 149
Anti-lock Brake System (ABS) ....... 296
Function ..................................................296
Warning light ....................................... 522
Approach warning ...............................259
Armrest ..................................................... 437
ASC (Active Sound Control).......... 228
Assist grips ..............................................439
Audio input ..............................................335
Audio system ..........................................328 Audio CD player ...............................354
Audio input ...........................................335
AUX port/USB port ............................................335
Bluetooth
® audio ..............................378
iPod.............................................................361
Optimal use .......................................... 344
Portable music player......................369
Radio ........................................................ 352
Steering wheel audio switch ........ 334
USB memory....................................... 364 Automatic headlight leveling
system ..................................................... 231
Warning light....................................... 523
Automatic High Beam ...................... 232
Automatic light control system ...... 229
AUX port................................................. 335
Average fuel economy ......................... 116
Average vehicle speed ......................... 116
Back-up light Replacing light bulb ......................... 502
Wattage ................................................ 588
Battery (12-volt battery) .................... 463
If the 12-volt battery is discharged ........................................ 566
Preparing and checking before winter.....................................322
Warning light......................................... 521
Battery (traction battery) ..................... 83
Blind Spot Monitor (BSM) ............... 310
Blower customization...........................419
Bluetooth
®
Audio system....................................... 378
Hands-free system (for cellular phone) .......................380
Bottle holders......................................... 430
B

610Alphabetical index
IS300h_EE(OM53D56E)
BrakeFluid ......................................................... 585
Parking brake .......................................227
Regenerative braking ...........................81
Warning light .........................................521
Brake assist ............................................. 296
Break-in tips ............................................ 195
Brightness control
Instrument panel li ght control..........112
BSM (Blind Spot Monitor) ................. 310
Card key.................................................... 130
Care ................................................442, 446
Aluminum wheels .............................. 443
Exterior.................................................... 442
Interior .....................................................446
Seat belts................................................ 447
Cargo hooks ........................................... 432
Caution label .............................................83
CD player ................................................354
Chains ....................................................... 323 Child restraint system............................ 60
Baby seats, definition............................ 61
Baby seats, installation ........................70
Child seats, definition ........................... 61
Child seats, installation .......................70
Installing CRS with ISOFIX
rigid anchors ........................................ 73
Installing CRS with seat belts ..........70
Installing CRS with top strap ........... 74
Junior seats, definition .......................... 61
Junior seats, installation ...................... 72
Child safety ................................................ 59
12-volt battery precautions .......................... 465, 569
Airbag precautions ............................. 45
Child restraint system ........................ 60
How your child should wear the seat belt.............................. 40
Installing child restraints .................... 69
Moon roof precautions .................... 192
Power window lock switch ............185
Power window precautions........... 187
Rear door child-protectors ............140
Removed electronic key battery precautions....................... 490
Seat belt precautions...........................42
Seat heater precautions ..................423
Trunk precautions .............................. 147
C

611Alphabetical index
IS300h_EE(OM53D56E)
Child-protectors ................................... 140
Cleaning ........................................442, 446Aluminum wheels .............................. 443
Exterior.................................................... 442
Interior .....................................................446
Seat belts................................................ 447
Clock .........................................................435
Coat hooks ..............................................439
Condenser ............................................. 462
Console box ........................................... 429
Coolant .....................................................460 Capacity ................................................ 583
Checking .............................................. 460
Preparing and checking
before winter .................................... 322
Cooling system......................................460
Engine overheating ............................571
Hybrid system overheating ............571
Cruise control Cruise control .....................................250
Dynamic radar cruise control ..... 254
Cup holders ............................................430
Current fuel consumption....................116
Curtain shield airbags ........................... 43
Customizable features ....................... 592 DAB (Digital Audio Broadcast) ..... 352
Daytime running light system ......... 230
Defogger
Outside rear view mirrors .............. 418
Rear window..........................................418
Windshield ............................................. 418
Differential............................................... 585
Digital Audio Broadcast (DAB) ..... 352
Dimensions ............................................. 578
Display Drive information...................................116
Dynamic radar cruise control ..... 254
LDA (Lane Departure Alert) ........ 271
Multi-information display...................115
Warning message .............................527
Distance ...................................................... 117
Do-it-yourself maintenance ...............451
Door courtesy lights Location ................................................. 425
Wattage ................................................ 588
Door lock
Doors......................................................... 136
Smart entry & start system ............. 149
Wireless remote control .................130D