belt Lexus IS250C 2010 Owner's Manual

TABLE OF CONTENTS
10_IS250C/350C_U
1
1Before drivingAdjusting and operating features such as door locks, mir-
rors, and steering column.
2When drivingDriving, stopping and safe-driving information.
3Interior featuresAir conditioning and audio systems, as well as other interior
features for a comfortable driving experience.
4Maintenance
and careCleaning and protecting your vehicle, performing do-it-your-
self maintenance, and maintenance information.
5When trouble
arisesWhat to do if the vehicle needs to be towed, gets a flat tire,
or is involved in an accident.
6Ve h i c l e
specificationsDetailed vehicle information.
7For ownersReporting safety defects for U.S. owners and seat belt in-
structions for Canadian owners
IndexAlphabetical listing of information contained in this manual.

TABLE OF CONTENTSIndex
10_IS250C/350C_U
2
1-1. Key informationKeys ...................................................... 24
1-2. Opening, closing and locking the doors and trunk
Smart access system with push-button start .......................... 28
Wireless remote control .............. 40
Doors.................................................... 43
Trunk..................................................... 47
1-3. Adjustable components (seats, mirrors,
steering wheel)
Front seats ........................................... 51
Driving position memory (driver’s seat) ................................. 56
Seat position memory (front passenger’s seat) ............. 60
Head restraints................................. 62
Seat belts ............................................ 65
Steering wheel.................................. 72
Anti-glare inside rear view mirror...................................... 74
Outside rear view mirrors ........... 75 1-4. Opening and closing the
windows and retractable
hardtop
Power windows................................ 78
Retractable hardtop........................ 81
1-5. Refueling Opening the fuel tank cap........... 90
1-6. Theft deterrent system Engine immobilizer system ......... 93
Alarm.................................................... 95
Theft prevention labels (U.S.A.) ............................................. 97
1-7. Safety information Correct driving posture ............... 98
SRS airbags ..................................... 100
Front passenger occupant classification system ..................... 111
Child restraint systems ................. 116
Installing child restraints ............. 120
1Before driving

TABLE OF CONTENTSIndex
10_IS250C/350C_U
6
5-1. Essential informationEmergency flashers..................... 452
If your vehicle needs to be towed ....................................... 453
If you think something is wrong ............................................. 459
Fuel pump shut off system ....... 460
Event data recorder ..................... 461
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ........................................ 463
If a warning message is displayed ....................................... 472
If you have a flat tire (vehicles with standard
tires) ............................................... 486
If you have a flat tire (vehicles with run-flat
tires) ................................................ 495
If the engine will not start .......... 497
If the shift lever cannot be shifted from P........................ 499
If you lose your keys ................... 500
If the electronic key does not operate properly ................ 501
If the vehicle battery is discharged .................................. 506
If your vehicle overheats .......... 509 If the vehicle becomes stuck .... 512
If the retractable hardtop
does not close.............................. 514
6-1. Specifications Maintenance data (fuel, oil level, etc.)..................... 526
Fuel information ............................ 542
Tire information............................. 545
6-2. Customization Customizable features............... 557
6-3. Initialization Items to initialize ........................... 562
Reporting safety defects for U.S. owners........................... 564
Seat belt instructions for Canadian owners
(in French) ................................... 565
5When trouble arises
6Vehicle specifications
7For owners

10_IS250C/350C_U
10
A
Pictorial indexInterior
SRS knee airbags P. 100
SRS driver airbag P. 100
Floor mat P. 358
Front seats P. 51
Cup holders P. 343
SRS side airbags P. 100
Console box P. 341
Power outlet P. 354
Ashtrays P. 352
AUX adapter
USB adapter P. 284
P. 265, 273Head restraints P. 62
Seat belts P. 65
SRS front passenger airbag
P. 100
Cup holders P. 343

10_IS250C/350C_U
20
Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as the multiport fuel injection system/sequential multiport
fuel injection system, cruise control system, anti-lock brake system, SRS airbag sys-
tem and seat belt pretensioner system, be sure to check with your Lexus dealer for
precautionary measures or special instructions regarding installation.
Scrapping of your Lexus
The SRS airbag and seat belt pretensioner devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with the airbags and seat belt pretensioners left
as they are, this may cause an accident such as fire. Be sure to have the systems of
the SRS airbag and seat belt pretensioner removed and disposed of by a qualified
service shop or by your Lexus dealer before you scrap your vehicle.
Perchlorate Material
Special handling may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These components may
include airbag, seat belt pretensioners, and wireless remote control batteries.

Before driving1
23
10_IS250C/350C_U
1-1. Key informationKeys ............................................... 24
1-2. Opening, closing and locking the doors and
trunk
Smart access system with push-button start ................... 28
Wireless remote control ........ 40
Doors ............................................ 43
Trunk ............................................. 47
1-3. Adjustable components (seats, mirrors,
steering wheel)
Front seats .................................... 51
Driving position memory (driver’s seat) ........................... 56
Seat position memory (front passenger’s seat) ........ 60
Head restraints .......................... 62
Seat belts ..................................... 65
Steering wheel........................... 72
Anti-glare inside rear view mirror ............................... 74
Outside rear view mirrors ...... 75 1-4. Opening and closing the
windows and retractable
hardtop
Power windows .......................... 78
Retractable hardtop ................. 81
1-5. Refueling Opening the fuel tank cap ..... 90
1-6. Theft deterrent system Engine immobilizer system.... 93
Alarm............................................ 95
Theft prevention labels (U.S.A.)...................................... 97
1-7. Safety information Correct driving posture ......... 98
SRS airbags .............................. 100
Front passenger occupant classification system............... 111
Child restraint systems ........... 116
Installing child restraints....... 120

46
1-2. Opening, closing and locking the doors and trunk
10_IS250C/350C_U
■Side window open/close function linked to door operation
When a door is opened, its window opens slightly. When a door is closed, its win-
dow closes completely.
■Impact detection door lock release system
In the event that the vehicle is subject to a strong impact, both side doors are
unlocked. Depending on the force of the impact or the type of accident, however,
the system may not operate.
■Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. (→P. 5 0 1 )
■Customization that can be configured at Lexus dealer
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features →P. 5 5 7 )
CAUTION
■To prevent an accident
Observe the following precautions while driving the vehicle.
Failing to do so may result in a door opening and an occupant falling out, resulting in
death or serious injury.
●Always use a seat belt.
●Always lock both side doors.
●Ensure that both side doors are properly closed.
●Do not pull the inside handle of the doors while driving.
The doors may be opened and the passengers are thrown out of the vehicle and it
may result in serious injury or death.
Both side doors may be opened even if the inside lock buttons are in locked posi-
tion.

54
1-3. Adjustable components (seats, mirrors, steering wheel)
10_IS250C/350C_U
■Switch-operated “Front, Fold & Return” Seat
●If any seat adjustment switch or driving position memory switch is operated
after the seat is moved to the forward and fold position using the “Front, Fold &
Return” seat switch, the seat cannot be returned using the “Front, Fold & Return”
seat switch. Use a switch other than the “Front, Fold & Return” seat switch to
return the seat.
●The switch-operated “Front, Fold & Return” seat cannot operate when:
• A person or item of luggage is on the seat or the seat belt is fastened.
•The vehicle is moving.
●Operation of the Switch-operated “Front, Fold & Return” Seat will stop if:
• The “Front, Fold & Return” seat switch is pressed again.
• Any seat adjustment switch or driving position memory switch is pressed.
• A person enters the seat or an item of luggage is put on the seat (during for-
ward movement only).
• The vehicle starts off.
• The seat belt is fastened (during forward movement only).
■When the seatback is fully reclined
Do not use the seatback fold lever to raise the front seat as this may prevent the
seatback from locking in place.
If the seatback will not lock, press and hold the seatback angle switch forward for a
few seconds to change the memorized seat position. Raise the seatback by hand
and check that it locks in position as normal.

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1-3. Adjustable components (seats, mirrors, steering wheel)
1
Before driving
10_IS250C/350C_U
CAUTION
■Seat adjustment
Do not recline the seat more than necessary when the vehicle is in motion to reduce
the risk of sliding under the lap belt.
If the seat is too reclined, the lap belt may slide past the hips and apply restraint
forces directly to the abdomen or your neck may contact the shoulder belt, increas-
ing the risk of death or serious injury in the event of an accident.
■Retuning the folded seatback to the upright position
Pull the seatback up by hand.
If the seatback angle switch is used to return the seatback, the seat may not be
locked in position, resulting in an accident.
After returning the seat, rock the seat back and forth to ensure that it is securely
locked in position.
■When the vehicle is moving
Do not operate the seatback fold levers.
■Switch-operated “Front, Fold & Return” Seat
●Before operating the switch, ensure that no surrounding passengers or objects
are caught in the seat. Seat operation will not stop automatically, even if some-
thing becomes caught in the seat. This may result in death or serious injury.
●Do not operate the switch while the vehicle is moving.

65
1
1-3. Adjustable components (seats, mirrors, steering wheel)
Before driving
10_IS250C/350C_U
Seat belts
Make sure that all occupants are wearing their seat belts before driving the
vehicle.
■Correct use of the seat belts
●Extend the shoulder belt so
that it comes fully over the
shoulder, but does not come
into contact with the neck or
slide off the shoulder.
● Position the lap belt as low as
possible over the hips.
● Adjust the position of the
seatback. Sit up straight and
well back in the seat.
● Do not twist the seat belt.
■ Fastening and releasing the seat belt
Fastening the belt
Push the tab into the buckle until
a clicking sound is heard.
Releasing the belt
Press the release button.
Release button