2015 Lexus IS250 park assist

4748-2. Steps to take in an emergency
IS350/250_U (OM53C50U)
Indicates that one or more of the doors is not fully closedThe system also indicates which doors are not fully
closed.
If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate
that the door(s) are not yet fully closed.
→ Make sure that all the doors are closed.
Indicates that the hood is not fully closed
If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate
that the hood is not yet fully closed.
→ Close the hood.
Indicates that the trunk is not fully closed
If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate
that the trunk is not yet fully closed.
→ Close the trunk.
(If equipped)
Indicates a malfunction in the intuitive parking assist-sen-
sor The assist-sensors flash.
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates that an intuitive park ing assist sensor is dirty or
covered with ice
A buzzer also sounds.
→ Clean the sensor.
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Wa r n i n g m e s s a g eDetails/Actions

4758-2. Steps to take in an emergency
8
When trouble arises
IS350/250_U (OM53C50U)
Indicates that the vehicle is being driven at 3 mph (5 km/
h) or more with the parking brake still engaged.A buzzer also sounds.
→ Release the parking brake.
Indicates that the shift lever was used to attempt to shift
to the first gear position in M mode on a slippery road
surface
The gear position will not shift from the second gear.
A buzzer also sounds.
→ Drive the vehicle in the second or a higher gear
position.
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Indicates a malfunction in:
•The ABS; or
• The brake assist system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Indicates that the engine coolant temperature is too high
A buzzer also sounds.
→ P. 5 0 6
(If equipped)
Indicates that the radar sensor is dirty or covered with
ice
A buzzer also sounds.
→ Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control system is
unable to judge vehicle-to-vehicle distance
A buzzer also sounds.
→ Turn off snow mode.
If the windshield wipers are on, turn them off or set
them to a mode other than AUTO or high speed
wiper operation.
Wa r n i n g m e s s a g eDetails/Actions
(U.S.A.) (Canada) (Flashes)
(U.S.A.) (Canada)

4958-2. Steps to take in an emergency
8
When trouble arises
IS350/250_U (OM53C50U)
CAUTION
■When using the compact spare tire
●Remember that the compact spare tire provided is specifically designed for use with
your vehicle. Do not use your compact spare tire on another vehicle.
●Do not use more than one compact spare tires simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may not
operate correctly:
Also, not only can the following system not be utilized fully, but it may even negatively
affect the drive-train components:
• AWD system
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to observe
this precaution may lead to an accident causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.
NOTICE
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving performance.
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve and trans-
mitter, contact your Lexus dealer as the tire pressure warning valve and transmitter
may be damaged if not handled correctly.
• ABS & Brake assist
•VSC
•TRAC
• Cruise control (if equipped)
• Dynamic radar cruise control (if equipped)
•PCS (if equipped)
•EPS • Adaptive Variable Suspension System
(if equipped)
• LDA (Lane Departure Alert) (if equipped)
• VGRS (if equipped)
• Rear view monitor system (if equipped)
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)

5439-2. Customization
9
Vehicle specifications
IS350/250_U (OM53C50U)
■Lights (→P. 1 7 3 )
*: U.S.A. only
■Intuitive parking assist*1 (→ P. 2 1 4 )
*1: If equipped
*2: When intuitive parking assist is operating.
■Automatic air conditioning system ( →P. 3 5 8 )
FunctionDefault settingCustomized setting
Daytime running light sys-
tem
*OnOffO—O
123
FunctionDefault settingCustomized setting
Detection distance of the
front center sensorFarNearO—O
Detection distance of the
rear center sensorFarNearO—O
Buzzer volume31 to 5O—O
Display setting*2All sensors dis-
playedDisplay offO—O
123
FunctionDefault settingCustomized setting
A/C Auto switch operationOnOffO—O
123

559
Index
IS350/250_U (OM53C50U)
What to do if... (Troubleshooting)................................560
Alphabetical index................................. 564
For vehicles with a navigation system, refer to the “NAVIGATION
SYSTEM OWNER’S MANUAL” for information regarding the
equipment listed below.
•Navigation system
• Audio/video system • Intuitive parking assist
• Rear view monitor system

566Alphabetical index
IS350/250_U (OM53C50U)
Back-up lightsReplacing light bulbs ......................... 451
Wattage ................................................... 521
Battery....................................................... 420 Battery checking ................................420
If the vehicle battery is discharged.................................... 502
Preparing and checking before winter ................................................... 260
Warning light ...................................... 466
Bluetooth
®
Audio system .........................................317
Hands-free system
(for cellular phone) ......................... 319
Bottle holders......................................... 372
Brake Fluid............................................................ 419
Parking brake.........................................172
Warning light ...................................... 466
Brake assist ............................................. 240
Break-in tips.............................................. 147
Brightness control Instrument panel light control .........84
BSM (Blind Spot Monitor)................ 252 Care................................................ 396, 399
Aluminum wheels .............................. 397
Exterior ...................................................396
Interior ..................................................... 399
Seat belts............................................... 400
Cargo capacity ....................................... 156
Cargo hooks ...........................................374
CD player................................................ 295
Chains ......................................................... 261
Child restraint system ............................54 Booster seats, definition .................... 55
Booster seats, installation ................. 64
Convertible seats, definition ........... 55
Convertible seats, installation........... 61
Front passenger occupant
classification system..........................47
Infant seats, definition.......................... 55
Infant seats, installation......................... 61
Installing CRS
with LATCH anchors ..................... 59
Installing CRS with seat belts ........... 61
Installing CRS with top tether strap......................... 65
BC

572Alphabetical index
IS350/250_U (OM53C50U)
I/M test .....................................................408
IdentificationEngine....................................................... 513
Vehicle ..................................................... 513
Ignition switch (engine switch)......... 159
Illuminated entry system .................... 369
Immobilizer system................................. 69
Indicators .................................................... 78
Initialization
Maintenance........................................ 403
Moon roof .............................................. 143
Multi-information display ................. 88
Power windows ................................... 139
Tire pressure warning system................................ 424
Initiators (tire pressure warning system)................................. 430
Inside door handle lights ................... 368
Inside rear view mirror .........................133
Instrument panel light control ............ 84
Interior lights........................................... 369 Wattage ................................................... 521
Intuitive parking assist...........................214
Jack Positioning a floor jack ......................412
Vehicle-equipped jack ...................487
Jack handle ..................................................487
Jam protection function Moon roof ...............................................142
Power windows ................................... 139 Keyless entry
Smart access system with push-button start.........103, 109
Wireless remote control.......103, 109
Keys .............................................................. 98
Battery-saving function ..................... 115
Electronic key ......................................... 98
Engine switch ........................................159
If the electronic key does not operate properly ........ 499
Key number plate ................................. 98
Keyless entry ........................................... 98
Mechanical key...................................... 99
Replacing the battery ...................... 439
Warning buzzer ...................................104
Wireless remote control................... 98
Knee airbags ..............................................36
I
J
K

573Alphabetical index
IS350/250_U (OM53C50U)
Lane Departure Alert (LDA) ..........208
Language (multi-information display) ............... 88
LATCH anchors ...................................... 59
LDA (Lane Departure Alert) ..........208
Lever Auxiliary catch lever ............................ 411
Hood lock release lever .................... 411
Internal trunk release lever................. 111
Shift lever ................................................. 164
Tilt and telescopic steering
lock release lever............................... 131
Turn signal lever .................................. 170
Wiper lever ............................................ 182
Lexus Display Audio system............ 266
Lexus Display Audio controller...... 268
Lexus Enform
*
Lexus Enform Remote*.................... 354
Lexus Enform Safety Connect........390
Lexus parking assist monitor
*.......... 221
License plate lights................................. 173
Light switch .............................................173
Replacing light bulbs ........................452 Light bulbs
Replacing ............................................... 446
Wattage ...................................................521
Lights
Fog light switch...................................... 181
Headlight switch .................................. 173
Illuminated entry system................. 369
Interior light...........................................369
Interior lights list..................................368
Personal lights ..................................... 369
Replacing light bulbs ....................... 446
Trunk light................................................... 111
Turn signal lever ...................................170
Vanity lights ...........................................377
Wattage ...................................................521
Lock steering column............................ 161
Low profile tire ....................................... 427
Luggage security system ..................... 110
L
*: For vehicles with a navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.