2018 Lexus IS350 Owner's Manual / LEXUS 2018 IS300,IS350 OWNER'S MANUAL (OM53E34U)

633
Index
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
What to do if...
(Troubleshooting) ............................... 634
Alphabetical index.................................638
For vehicles with a na vigation system, refer to the “NAVIGATION
SYSTEM OWNER’S MANUAL” for information regarding the
equipment listed below.
• Navigation system
• Audio/video system •Lexus Enform

634
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne
w genuine mechanical keys can be made
by your Lexus dealer. ( →P. 112)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. (→ P. 115)
●Is the electronic key battery weak or depleted? ( →P. 500)
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (→P. 179)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
(→ P. 129)
●Is the child-protector lock set?
The rear door cannot be opened from in side the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
(→ P. 119)
If you have a problem, check the foll owing before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

635What to do if... (Troubleshooting)
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open the trunk as usual. Take the key out from the trunk.
(→ P. 124)
●Did you press the engine switch while firmly depressing the brake pedal?
(→ P. 178)
●Is the shift lever in P? ( →P. 180)
●Is the electronic key anywhere detectable inside the vehicle? ( →P. 127)
●Is the steering wheel unlocked? (→ P. 180)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. (→P. 570)
●Is the battery discharged? ( →P. 572)
●Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
engine switch in IGNITION ON mode. ( →P. 188)
●It is locked automatically to prevent theft of the vehicle. ( →P. 180)
The trunk lid is closed with the electronic key left inside
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from
P even if you depress the brake
pedal
The steering wheel cannot be turned after the engine is stopped

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