2018 Lexus IS350 warning light

5648-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY” on the
tire sidewall.
Use the compact spare tire tempor arily, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire.
( → P. 593)
■When using the compact spare tire
As the compact spare tire is not equipped wi th a tire pressure warning valve and trans-
mitter, low inflation pressure of the spare tire will not be indicated by the tire pressure
warning system. Also, if you replace the compact spare tire after the tire pressure warn-
ing light comes on, the light remains on.
■When the compact spare tire is equipped
The vehicle becomes lower when driving with the compact spare tire compared to when
driving with standard tires.
■If you have a flat rear tire on a road covered with snow or ice (vehicles with front and
rear tires of the same size)
Install the compact spare tire on one of the front wheels of the vehicle. Perform the fol-
lowing steps and fit tire chains to the rear tires:
Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the vehicle.
Fit tire chains to the rear tires.
1
2
3

5758-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
WARNING
■Avoiding battery fires or explosions
Observe the following precautions to preven t accidentally igniting the flammable gas
that may be emitted from the battery:
●Make sure each jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cab le connected to the “+” terminal to come
into contact with any other parts or metal surfaces in the area, such as brackets or
unpainted metal.
●Do not allow the + and - clamps of the jump er cables to come into contact with each
other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the battery.
■Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observ e the following precautions when handling
the battery:
●When working with the battery, always wear safety glasses and take care not to allow
any battery fluids (acid) to come into cont act with skin, clothing or the vehicle body.
●Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes, immediately
wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands afte r handling the battery support, terminals, and other bat-
tery-related parts.
●Do not allow childre n near the battery.
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in the
cooling fans or engine drive belt.

6139-2. Customization
9
Vehicle specifications
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Door lock (→P. 116, 122, 569)
■Smart access system with push-button start and wireless remote control
( → P. 116, 122)
FunctionDefault settingCustomized setting
Unlocking using a mechanical
key
Driver’s door
unlocked in one
step, all doors
unlocked in two steps
All doors unlocked in one step—O
Automatic door lockShifting the shift
lever to position
other than P
Off
OOVehicle speed is
approximately 12
mph (20 km/h) or higher
Automatic door unlockShifting the shift
lever to POff
OODriver’s door is opened
Locking/unlocking of the trunk
when all doors are locked/
unlocked
OnOff—O
12
FunctionDefault settingCustomized setting
Operation buzzer volume5OffOO1 to 7
Operation signal
(Emergency flashers)OnOffOO
Time elapsed before automatic
door lock function is activated if
door is not opened after being
unlocked
60 seconds
Off
OO30 seconds
120 seconds
Open door warning buzzerOnOff—O
Welcome light illumination con-
trolOnOff—O
12

636What to do if... (Troubleshooting)
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
●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. 154)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( →P. 180)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts? (→P. 524)
●The parking brake indicator is on
Is the parking brake released? ( →P. 192)
Depending on the situation, other types of warning buzzer may also sound.
(→ P. 522, 529)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. (→ P. 71)
Do one of the following to de activate or stop the alarms:
• Unlock the doors or open the trunk.
• Turn the engine switch to ACCESSOR Y or IGNITION ON mode, or start
the engine. The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds

637What to do if... (Troubleshooting)
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. (→ P. 529)
●When a warning light turns on or a warning message is displayed, refer to
P. 522, 529.
●Stop the vehicle in a safe place and replace the flat tire with the spare tire.
(→ P. 556)
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(→ P. 580)
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

638
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Alphabetical index
Alphabetical index
A/C ............................................................ 407
Air conditioning filter....................... 498
Automatic air conditioning system ..................................................407
AAC disc ................................................. 336
ABS (Anti-lock Brake System)....... 292 Warning light ....................................... 522
Adaptive Front-lighting System (AFS) ....................................... 195 Warning light .......................................524
Adaptive Variable Suspension system ........................... 293
AFS (Adaptive Front-lighting System) ................................................... 195 Warning light .......................................524
Air conditioning filter .......................... 498
Air conditioning system ..................... 407 Air conditioning filter....................... 498
Automatic air conditioning system ..................................................407 Airbags .........................................................36
Airbag operating conditions ...........42
Airbag precautions for your child ....................................... 38
Correct driving posture .................... 28
Curtain shield airbag operating conditions ........................42
Curtain shield airbag precautions .......................................... 40
Front passenger occupant classification system......................... 46
General airbag precautions ........... 38
Locations of airbags............................ 36
Modification and disposal of airbags................................................. 41
Side airbag operating conditions ..............................................42
Side airbag precautions .................... 38
Side and curtain shield airbags operating conditions ........................42
Side and curtain shield airbags precautions ......................... 38
SRS airbags ............................................. 36
SRS warning light .............................. 522
A

639Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Alarm .............................................................. 71
Anchor brackets ...................................... 57
Antennas (smart access system
with push-button start) ...................... 127
Anti-lock Brake System (ABS)....... 292 Warning light ....................................... 522
Approach warning (dynamic radar cruise control) ........................ 246
Armrest .................................................... 429
ASC (Active Sound Control) ...........193
Assist grip ..................................................431
Audio input................................................313
Audio system.......................................... 304 Audio input............................................. 313
AUX port/USB port......................... 313
Bluetooth
® audio...............................362
CD player ..............................................336
iPod ...........................................................343
MP3/WMA/AAC disc .................336
Optimal use .......................................... 323
Portable music player ....................... 351
Radio ....................................................... 330
Steering wheel audio switch ......... 310
USB memory ....................................... 347 Automatic headlight leveling
system ...................................................... 196
Automatic High Beam .........................198
Automatic light control system ...................................................... 194
Automatic transmission.......................183 If the shift lever cannot be shifted from P ............. 188
M mode ................................................... 186
Paddle shift switches......................... 185
AUX port .................................................. 313
Average fuel economy............................ 104, 105, 107
Average vehicle speed........................ 104

640Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Back-up lights
Replacing light bulbs ....................... 509
Battery.......................................................480 Battery checking ............................... 480
If the vehicle battery is discharged..................................... 572
Preparing and checking before winter .................................................... 297
Warning light ....................................... 522
Bluetooth
®
Audio system .......................................362
Hands-free system (for cellular phone) ........................363
Bottle holders ......................................... 423
Brake Fluid........................................................... 479
Parking brake........................................ 192
Warning light ....................................... 522
Brake assist ............................................. 292
Break-in tips..............................................166
Brightness control Instrument panel light control .........84
BSM (Blind Spot Monitor)................ 276 BSM function ...................................... 280
RCTA function ................................... 283 Care................................................ 452, 456
Aluminum wheels .............................. 453
Exterior ................................................... 452
Interior ..................................................... 456
Seat belts................................................ 457
Cargo capacity ....................................... 175
Cargo hooks ...........................................425
CD player................................................ 336
Chains ....................................................... 298
Child restraint system ........................... 53 Booster seats, definition .................... 54
Booster seats, installation ................. 63
Convertible seats, definition ........... 54
Convertible seats, installation......... 60
Front passenger occupant classification system......................... 46
Infant seats, definition.......................... 54
Infant seats, installation....................... 60
Installing CRS with LATCH anchors ..................... 58
Installing CRS with seat belts ......... 60
Installing CRS with top tether strap......................... 64
BC