fuel Lexus IS250 2015 Owner's Manual

TABLE OF CONTENTS2
IS350/250_U (OM53C50U)
For your information ................................... 8
Reading this manual...................................12
How to search ..............................................13
Pictorial index ...............................................14
1-1. For safe useBefore driving................................. 26
For safety drive............................... 28
Seat belts .......................................... 30
SRS airbags ..................................... 36
Front passenger occupant classification system...................47
Safety information for children ................................... 53
Child restraint systems ............... 54
Installing child restraints............. 58
Exhaust gas precautions ............ 68
1-2. Theft deterrent system Engine immobilizer system....... 69
Alarm ................................................... 71
Theft prevention labels ................73
2. Instrument cluster Warning lights and indicators........................................ 76
Gauges and meters .......................81
Multi-information display .......... 86
Fuel consumption information ................................... 92 3-1. Key information
Keys .................................................... 98
3-2. Opening, closing and locking the doors and trunk
Doors ............................................... 103
Trunk................................................. 109
Smart access system with push-button start ....................... 114
3-3. Adjusting the seats Front seats.......................................120
Rear seats......................................... 121
Driving position memory..........123
Head restraints .............................128
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................... 131
Inside rear view mirror ..............133
Outside rear view mirrors........135
3-5. Opening, closing the windows and moon roof
Power windows............................ 138
Moon roof ........................................ 141
1For safety and security
2Instrument cluster
3Operation of each
component

3
1
9 8
7 5 4
3
2
10
IS350/250_U (OM53C50U)
6
4-1. Before driving Driving the vehicle ......................146
Cargo and luggage.....................153
Vehicle load limits ........................156
Trailer towing ................................. 157
Dinghy towing .............................. 158
4-2. Driving procedures Engine (ignition) switch .............159
Automatic transmission ............164
Turn signal lever ............................ 170
Parking brake ................................ 172
4-3. Operating the lights and wipers
Headlight switch .......................... 173
Automatic High Beam............... 176
Fog light switch .............................. 181
Windshield wipers and washer .......................................... 182
4-4. Refueling Opening the fuel tank cap ...... 188 4-5. Using the driving
support systems
Cruise control ...............................192
Dynamic radar cruise control ...........................................196
LDA (Lane Departure Alert)........208
Intuitive parking assist ................214
Lexus parking assist monitor.......................................... 221
Driving mode select switch ............................................237
Driving assist systems .............. 240
PCS (Pre-Collision System) ..........246
BSM (Blind Spot Monitor) ............. 252
•The Blind Spot Monitor function .................................... 255
• The Rear Cross Traffic Alert function .........................257
4-6. Driving tips Winter driving tips ..................... 260
4Driving

7
1
9 8
7 5 4
3
2
10
IS350/250_U (OM53C50U)
6
8-2. Steps to take in an emergency
If your vehicle needs to be towed ........................................... 458
If you think something is wrong........................................... 464
Fuel pump shut off system ...... 465
If a warning light turns on or a warning buzzer
sounds ......................................... 466
If a warning message is displayed .....................................472
If you have a flat tire .................. 486
If the engine will not start ........ 496
If the shift lever cannot be shifted from P ........................... 498
If the electronic key does not operate properly ............. 499
If the vehicle battery is discharged ................................. 502
If your vehicle overheats .........506
If the vehicle becomes stuck .............................................509 9-1. Specifications
Maintenance data (fuel, oil level, etc.) ....................512
Fuel information ......................... 522
Tire information........................... 525
9-2. Customization Customizable features .............537
9-3. Initialization Items to initialize......................... 546
Reporting safety defects for U.S. owners ........................ 548
Seat belt instructions for Canadian owners
(in French).................................. 549
SRS airbag instructions for Canadian owners
(in French).................................. 550
What to do if... (Troubleshooting) ............................... 560
Alphabetical index ................................ 5649Vehicle specifications
10For owners
Index
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

8
IS350/250_U (OM53C50U)Please note that this manual applies to all
models and explains all equipment, including
options. Therefore, you may find some explanations for equipment not installed on your
vehicle.
All specifications provided in this manual are current at the time of printing. However,
because of the Lexus policy of continual product improvement, we reserve the right to
make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustrations may differ from your
vehicle in terms of color and equipment.
Approximately five hours after the engine is turned off, you may hear sound coming from
under the vehicle for several minutes. This is the sound of a fuel evaporation leakage
check and, it does not indicate a malfunction.
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are cur-
rently available in the market. You should know that Toyota does not warrant these prod-
ucts and is not responsible for their perfor mance, repair, or replacement, or for any
damage they may cause to, or adverse effect they may have on, your Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification with
non-genuine Lexus products could affect its performance, safety or durability, and may
even violate governmental regulations. In addition, damage or performance problems
resulting from the modification may not be covered under warranty.
The installation of a mobile two-way radio system in your vehicle could affect electronic
systems such as:
●Multiport fuel injection system/seque ntial multiport fuel injection system
●Dynamic radar cruise control system
●Cruise control system
●Anti-lock brake system
●Vehicle dynamics integrated management
●SRS airbag system
●Seat belt pretensioner system
Be sure to check with your Lexus dealer for precautionary measures or special instruc-
tions regarding installation of a mobile two-way radio system.
For your information
Main Owner’s Manual
Noise from under vehicle after turning off the engine
Accessories, spare parts and modification of your Lexus
Installation of a mobile two-way radio system

15Pictorial index
IS350/250_U (OM53C50U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 182
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 260
To prevent freezing (windshield wiper de-icer)
* . . . . . . . . . . . . . . . . . . . . . . . . P. 362
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 397
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 1 8 8
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 188
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 514
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 423
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 519
Winter tires/tire chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 260
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . .P. 423
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 486
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 514
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 506
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 4 74
Headlights/parking lights/daytime running lights . . . . . . . . . . . . . . . . . . . P. 173
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 181
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 170
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 173
Stop lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 146
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 17 3
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 16 4
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 173
4
5
6
7
Light bulbs of the exterior lights for driving(Replacing method: P. 444, Watts: P. 521)
*: If equipped
8
9
10
11
12
13
14
15

75
Instrument cluster2
IS350/250_U (OM53C50U)
2. Instrument clusterWarning lights and indicators ........................................76
Gauges and meters ...................... 81
Multi-information display .......... 86
Fuel consumption information ................................... 92

772. Instrument cluster
2
Instrument cluster
IS350/250_U (OM53C50U)
Warning lights inform the driver of malfunctions in the indicated vehicle systems.
Warning lights
*1
(U.S.A.)
Brake system warning light
(→ P. 466)
*1, 2
(if equipped)
Pre-collision system warn-
ing light
(→ P. 4 6 7 )
*1
(Canada)
Brake system warning light
(→ P. 466)*1
Slip indicator ( →P. 4 6 7 )
*1Charging system warning
light ( →P. 466)*1 Automatic headlight level-
ing system warning light
(→ P. 4 6 7 )
*1
(U.S.A.)
Malfunction indicator lamp
(→ P. 466)*1Open door warning light
(→ P. 4 6 7 )
*1
(Canada)
Malfunction indicator lamp
(→ P. 466)Low fuel level warning light
(→ P. 4 6 7 )
*1SRS warning light
(→ P. 466)Seat belt reminder light
(→ P. 4 6 7 )
*1
(U.S.A.)
ABS warning light
(→ P. 466)*1Master warning light
(→ P. 4 6 7 )
*1
(Canada)
ABS warning light
(→ P. 466)*1Tire pressure warning light
(→ P. 4 6 8 )
*1Electric power steering sys-
tem warning light
(→ P. 4 6 7 )

822. Instrument cluster
IS350/250_U (OM53C50U)
Engine coolant temperature gauge
Displays the engine coolant temperature
Ta c h o m e t e r
Displays the engine speed in revolutions per minute
Outside temperature
Displays the outside temperature within the range of -40°F (-40°C) to 122°F
(50°C). Low outside temperature indicator comes on when the ambient temperature
is 37°F (3°C) or lower.
Shift position and gear position ( → P. 1 6 4 )
Speedometer
Fuel gauge
Multi-information display
Presents the driver with a variety of vehicle data ( →P. 8 6 )
Displays warning messages in case of a malfunction ( →P. 4 7 2 )
Odometer and trip meter display
Odometer:
Displays the total distance the vehicle has been driven
Tr i p m e t e r :
Displays the distance the vehicle has been driven since the meter was last reset. Trip
meters “A” and “B” can be used to record and display different distances indepen-
dently.
1
2
3
4
5
6
7
8

872. Instrument cluster
2
Instrument cluster
IS350/250_U (OM53C50U)
◆Operating the meter control switches
The multi-information display is oper-
ated using the meter control switches. Select an item/change pages
Enter/Set
XExcept F SPORT models
Press: Displays the screen regis-
tered to
When no screen has been registered, the drive information screen will be dis-
played.
Press and hold: Registers the currently displayed screen to
When the confirmation screen is displayed, select yes to register the screen. If the
selected screen cannot be registered, a registration failure message will be shown.
XF SPORT models
Move the main meter
Return to the previous screen
■Current fuel consumption*
Displays the current rate of fuel consumption
■Average fuel economy (after reset/after start/after refuel)*
Displays the average fuel economy since the function was reset, the engine
was started, and the vehicle was refueled, respectively
■Average vehicle speed (after reset/after start)*
Displays the average vehicle speed since the function was reset and the
engine was started, respectively
■Elapsed time (after reset/after start)*
Displays the elapsed time since the function was reset and the engine was
started, respectively
1
2
3
3
Drive Information
4

882. Instrument cluster
IS350/250_U (OM53C50U)
■Distance (driving range/after start)*
Displays the estimated maximum distance that can be driven with the quantity
of fuel remaining and the distance driven after the engine was started respec-
tively.
• This distance is computed based on your average fuel consumption. As a result, the actual distance that can be driven may differ from that displayed.
• When only a small amount of fuel is added to the tank, the display may not be
updated.
When refueling, turn the engine switch off. If the vehicle is refueled without turning
the engine switch off, the display may not be updated.
■Eco Driving Indicator
→ P. 9 0
■Tire inflation pressure
→P. 4 2 4
■Gear positions
→P. 1 6 8
*: Displayed when the item is set in “Drive Info 1” or “Drive Info 2”. Use these values as a
reference.
■Language
Select to change the language on the display.
■Units
Select to change the unit of measure for fuel consumption.
■Maintenance system
Select to reset the maintenance data after the required maintenance is per-
formed. (
→ P. 4 0 3)
■Eco Driving Indicator Light
Select to activate/deactivate the Eco Driving Indicator Light.
■ switch settings (except F SPORT models)
Displays a procedure to register a desired screen to .
You can register 1 screen as a shortcut, which can be displayed by pressing . (
→P. 8 7 )
■Drive information 1 /Drive information 2
Select to select up to 2 items that will be displayed on the “Drive Info 1” screen
and “Drive Info 2” screen respectively. (
→ P. 8 7 )
Settings display