ECU LEXUS IS250 2016 Owners Manual

13
Without navigation system
Navigation
system*
Clock
P. 259
Audio
system
P. 219
Air conditioning
system
P. 210
Rear window and out-
side rear view mirror
defoggers P. 218
Security indicator
P. 77, 79
Emergency
flasher switch
P. 372
Clock P. 259
Audio system*
Security indicator
P. 77, 79
Emergency flasher
switch P. 372
Air conditioning
system*
With navigation system
∗: If equipped
*: Refer to “Navigation System Owner's Manual”.
Rear window and
outside rear view
mirror defoggers*
A

37
1-2. Opening, closing and locking the doors and trunk
1

Before driving
nPa n i c m o d e
nElectronic key battery depletion
→P. 30
nSecurity feature
→P. 31
nWhen the electronic key battery is fully depleted
→P. 34 5
nConditions affecting operation
→P. 28
nCustomization that can be configured at Lexus dealer
Settings (e.g. trunk unlocking function) can be changed.
(Customizable features →P. 4 6 1 )
When is pushed for longer than about
one second, an alarm will sound for about 60
seconds and the vehicle lights will flash to
deter any person from trying to break into or
damage your vehicle.
To stop the alarm, push any button on the
wireless remote control.

59
1-3. Adjustable components (seats, mirrors, steering wheel)
1

Before driving
nPeople suffering illness
Obtain medical advice and wear the seat belt in the proper way.
nChild seat belt usage
The seat belts of your vehicle are principally designed for persons of adult size.
lUse a child restraint system appropriate for the child, until the child become
large enough to properly wear the vehicle's seat belt. (→P. 1 0 0 )
lWhen the child becomes large enough to properly wear the vehicle's seat belt,
follow the instructions on P. 56 regarding seat belt usage.
nReplacing the belt after the pretensioner has been activated
If the vehicle is involved in multiple collisions, the pretensioner will activate for the
first collision, but will not activate for the second or subsequent collisions.
nSeat belt extender
If your seat belts cannot be fastened securely
because they are not long enough, a person-
alized seat belt extender is available from
your Lexus dealer free of charge.

61
1-3. Adjustable components (seats, mirrors, steering wheel)
1

Before driving
CAUTION
nSeat belt damage and wear
lDo not damage the seat belts by allowing the belt, plate, or buckle to be jammed
in the door.
lInspect the seat belt system periodically. Check for cuts, fraying, and loose parts.
Do not use a damaged seat belt until it is replaced. Damaged seat belts cannot
protect an occupant from death or serious injury.
lEnsure that the belt and tab are locked and the belt is not twisted.
If the seat belt does not function correctly, immediately contact your Lexus
dealer.
lReplace the seat assembly, including the belts, if your vehicle has been involved in
a serious accident, even if there's no obvious damage.
lDo not attempt to install, remove, modify, disassemble or dispose of the seat belts.
Have any necessary repairs carried out by your Lexus dealer. Inappropriate han-
dling of the pretensioner may prevent it from operating properly resulting in
death or serious injury.
nUsing a seat belt extender
lDo not wear the seat belt extender if you can fasten the seat belt without the
extender.
lDo not use the seat belt extender when installing a child restraint system because
the belt will not securely hold the child restraint system, increasing the risk of
death or injury in the event of a collision.
lThe personalized extender may not be safe on another vehicle, when used by
another person, or at a different seating position other than the one originally
intended.
NOTICE
nWhen using a seat belt extender
When releasing the seat belt, press on the buckle release button on the extender,
not on the seat belt.
This helps prevent damage to the vehicle interior and the extender itself.

62
1-3. Adjustable components (seats, mirrors, steering wheel)
Steering wheel (manually adjustable type)
CAUTION
nCaution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and an accident, resulting in
death or serious injury.
nAfter adjusting the steering wheel
Make sure that the steering wheel is securely locked.
Otherwise, the steering wheel may move suddenly, possibly causing an accident.
The steering wheel can be adjusted to a comfortable position.
Hold the steering wheel
and press the lever
down.
Adjust to the ideal posi-
tion by moving the
steering wheel horizon-
tally and vertically.
Pull the lever up.
STEP1
STEP2
STEP3

77
1

Before driving
1-6. Theft deterrent system
Engine immobilizer system
nSystem maintenance
The vehicle has a maintenance-free type of engine immobilizer system.
nConditions that may cause the system to malfunction
lIf the grip portion of the key is in contact with a metallic object
lIf the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle
The vehicle's keys have built-in transponder chips that prevent the engine
from starting if the key has not been previously registered in the vehicle's
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned OFF to
indicate that the system is oper-
ating.

85
1-7. Safety information
1

Before driving
Airbag system components
Your vehicle is equipped with ADVANCED AIRBAGS designed based
on US motor vehicle safety standards (FMVSS208). The airbag system
controls airbag deployment power for the driver and front passenger. The
driver airbag system consists of the driver seat’s position sensor etc. The
front passenger’s airbag system consists of the front passenger occupant
classification sensor etc.
The main SRS airbag system components are shown above. The SRS air-
bag system is controlled by the airbag sensor assembly. The airbag sen-
sor assembly consists of a safing sensor and an airbag sensor.
Knee airbags
Front passenger airbag
Curtain shield airbags
“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Side airbags
Side and curtain shield airbag
sensors
Curtain shield airbag sensors
SRS warning light
Driver airbag
Driver's seat belt buckle switch
Driver's seat position sensor
Front passenger’s seat belt
buckle switch
Airbag sensor assembly
Occupant detection system
(ECU and sensors)
Front airbag sensors

91
1-7. Safety information
1

Before driving
CAUTION
nSRS airbag precautions
lThe SRS front passenger airbag also deploys with considerable force, and can
cause death or serious injury especially if the front passenger is very close to the
airbag. The front passenger seat should be as far from the airbag as possible with
the seatback adjusted, so the front passenger sits upright.
lImproperly seated and/or restrained infants and children can be killed or seri-
ously injured by a deploying airbag. An infant or child who is too small to use a
seat belt should be properly secured using a child restraint system. Lexus strongly
recommends that all infants and children be placed in the rear seats of the vehicle
and properly restrained. The rear seats are the safest for infants and children.
(→P. 1 0 0 )
lIf the seat belt extender has been con-
nected to the driver's seat belt buckle but
the seat belt extender has not also been
fastened to the latch plate of the driver's
seat belt, the SRS driver's airbag system
will judge that the driver is wearing the seat
belt even though the seat belt has not been
connected. In this case, the driver's airbag
may not activate correctly in a collision,
resulting in death or serious injury in the
event of collision. Be sure to wear the seat
belt with the seat belt extender.

102
1-7. Safety information
CAUTION
nChild restraint precautions
lLexus strongly urges the use of a proper child restraint system that conforms to
the size of the child, installed on the rear seat. According to accident statistics, the
child is safer when properly restrained in the rear seat than in the front seat.
lNever install a rear-facing child restraint system on the front passenger seat even
if the “AIR BAG OFF” indicator light is illuminated. In the event of an accident, the
force of the rapid inflation of the front passenger airbag can cause death or seri-
ous injury to the child if the rear-facing child restraint system is installed on the
front passenger seat.
lA forward-facing child restraint system may allowed to be installed on the front
passenger seat only when it is unavoidable. A child restraint system that requires
a top tether strap should not be used in the front passenger seat since there is no
top tether strap anchor for the front passenger seat. Adjust the seatback as
upright as possible and always move the seat as far back as possible even if the
“AIR BAG OFF” indicator light is illuminated, because the front passenger airbag
could inflate with considerable speed and force. Otherwise, the child may be
killed or seriously injured.
lDo not use the seat belt extender when installing a child restraint system on the
front or rear passenger seat. If installing a child restraint system with the seat belt
extender connected to the seat belt, the seat belt will not securely hold the child
restraint system, which could cause death or serious injury to the child or other
passengers in the event of collision.
lDo not allow the child to lean his/her head or any part of his/her body against the
door or the area of the seat, front pillar, rear pillar or roof side rail from which the
side airbags or curtain shield airbags deploy even if the child is seated in the child
restraint system. It is dangerous if the side airbags and curtain shield airbags
inflate, and the impact could cause death or serious injury to the child.
lMake sure you have complied with all installation instructions provided by the
child restraint manufacturer and that the system is properly secured. If it is not
secured properly, it may cause death or serious injury to the child in the event of a
sudden stop or accident.

103
1-7. Safety information
1

Before driving
CAUTION
nChild restraint lock function belt precaution
Do not allow children to play with the child restraint lock function belt. If the belt
becomes twisted around a child’s neck, it will not be possible to pull the belt out
leading to choking or other serious injuries that could result in death.
If this occurs and the buckle cannot be unfastened, scissors should be used to cut
the belt.
nWhen the child restraint system is not in use
lKeep the child restraint system properly secured on the seat even if it is not in use.
Do not store the restraint unsecured in the passenger compartment.
lIf it is necessary to detach the child restraint system, remove it from the vehicle or
store it securely in the trunk. This will prevent it from injuring passengers in the
event of a sudden stop or accident.