2015 Lexus IS250 ECU

IS350/250_U (OM53C50U)
Pictorial indexSearch by illustration
1For safety
and securityMake sure to read through them
2Instrument clusterHow to read the gauges and meters, the variety of
warning lights and indicators, etc.
3Operation of each
componentOpening and closing the doors and windows,
adjustment before driving, etc.
4DrivingOperations and advices which are necessary for driving
5Lexus Display
Audio systemOperating the Lexus Display Audio system
6Interior featuresUsage of the interior features, etc.
7Maintenance
and careCaring for your vehicle and maintenance procedures
8When trouble
arisesWhat to do in case of malfunction or emergency
9Vehicle
specificationsVehicle specifications, customizable features, etc.
10For ownersReporting safety defects for U.S. owners, and seat belt
and SRS airbag instructions for Canadian owners
IndexSearch by symptom
Search alphabetically

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

25
For safety and security1
IS350/250_U (OM53C50U)
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

26
IS350/250_U (OM53C50U)1-1. For safe use
Use only floor mats designed specifically for vehicles of the same model and
model year as your vehicle. Fix them securely in place onto the carpet.
Insert the retaining hooks (clips) into
the floor mat eyelets.
Turn the upper knob of each retain-
ing hook (clip) to secure the floor
mats in place.
*: Always align the marks.
The shape of the retaining hooks (clips) may differ from that shown in the illustration.
Before driving
Floor mat
1
*
2

271-1. For safe use
1
For safety and security
IS350/250_U (OM53C50U)
CAUTION
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering with the ped-
als while driving. An unexpectedly high spee d may result or it may become difficult to
stop the vehicle, leading to an accident, or leading to death or a serious injury.
■When installing the driver’s floor mat
●Do not use floor mats designed for other models or different model year vehicles,
even if they are Lexus Genuine floor mats.
●Only use floor mats designed for the driver’s seat.
●Always install the floor mat securely using the retaining hooks (clips) provided.
●Do not use two or more floor mats on top of each other.
●Do not place the floor mat bottom-side up or upside-down.
■Before driving
●Check that the floor mat is securely fixed in
the correct place with all the provided retain-
ing hooks (clips). Be especially careful to per-
form this check after cleaning the floor.
●With the engine stopped and the shift lever in
P, fully depress each pedal to the floor to
make sure it does not interfere with the floor
mat.

291-1. For safe use
1
For safety and security
IS350/250_U (OM53C50U)
Make sure that you can see backward clearly by adjusting the inside and outside
rear view mirrors properly. (→P. 133, 135)
Adjusting the mirrors
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Do not adjust the position of the driver’s seat while driving.
Doing so could cause the driver to lose control of the vehicle.
●Do not place a cushion between the driver or passenger and the seatback.
A cushion may prevent correct posture from being achieved, and reduce the effec-
tiveness of the seat belt and head restraint.
●Do not place anything under the front seats.
Objects placed under the front seats may become jammed in the seat tracks and stop
the seat from locking in place. This may lead to an accident and the adjustment mech-
anism may also be damaged.
●When driving over long distances, take regular breaks before you start to feel tired.
Also, if you feel tired or sleepy while driving, do not force yourself to continue driving
and take a break immediately.

311-1. For safe use
1
For safety and security
IS350/250_U (OM53C50U)
Push the seat belt shoulder anchor
down while pressing the release but-
ton.
Push the seat belt shoulder anchor
up.
Move the height adjuster up and down
as needed until you hear a click.
The pretensioners help the seat belts to
quickly restrain the occupants by
retracting the seat belts when the vehi-
cle is subjected to certain types of
severe frontal collision.
The front seat belt pretensioners also
activate when the vehicle is subjected to
certain types of severe side collision.
The pretensioners do not activate in the
event of a minor frontal impact, a minor
side impact, a rear impact or a vehicle
rollover.
Adjusting the seat belt shoulder anchor height (front seats)
1
2
Seat belt pretensioners (front seats for all models and outboard rear
seats of some models)

321-1. For safe use
IS350/250_U (OM53C50U)
■After the rear center seat belt has been used
■Emergency locking retractor (ELR)
The retractor will lock the belt during a sudden stop or on impact. It may also lock if you
lean forward too quickly. A slow, easy motion will allow the belt to extend so that you can
move around fully.
■Automatic locking retractor (ALR)
When a passenger’s shoulder belt is completely extended and then retracted even
slightly, the belt is locked in that position and cannot be extended. This feature is used to
hold a child restraint system (CRS) firmly. To free the belt again, fully retract the belt and
then pull the belt out once more. ( →P. 5 8 )
■Child seat belt usage
The seat belts of your vehicle were principally designed for persons of adult size.
●Use a child restraint system appropriate fo r the child, until the child becomes large
enough to properly wear the vehicle’s seat belt. ( →P. 5 4 )
●When the child becomes large enough to prop erly wear the vehicle’s seat belt, follow
the instructions regarding seat belt usage. ( →P. 3 0 )
■Replacing the belt after the pretensioner has been activated
If the vehicle is involved in multiple collisio ns, the pretensioner will activate for the first
collision, but will not activate for the second or subsequent collisions.
■Seat belt extender Stow the buckle as shown.
If your seat belts canno t be fastened securely
because they are not long enough, a personal-
ized seat belt extender is available from your
Lexus dealer free of charge.