ECU LEXUS RX350 2015 User Guide

861-3. Adjustable components (s eats, mirrors, steering wheel)
■
Seat belt extender
CAUTION
Observe the following precautions to reduce the risk of injury in the event of sudden
braking, sudden swerving or an accident.
Failing to do so may cause death or serious injury. ■
Wearing a seat belt ●
Ensure that all passengers wear a seat belt.●
Always wear a seat belt properly.●
Each seat belt should be used by one person only. Do not use a seat belt for more
than one person at on ce, including children.●
Lexus recommends that children be seated in the rear seat and always use a seat
belt and/or an appropriate child restraint system.●
To achieve a proper seating position, do not recline the seat more than necessary.
The seat belt is most effective when the occupants are sitting up straight and well
back in the seats.●
Do not wear the shoulder belt under your arm.●
Always wear your seat belt low and snug across your hips. If your seat belts cann ot be fastened securely
because they are not long enough, a person-
alized seat belt extender is available from
your Lexus dealer free of charge.

891-3. Adjustable components (seats, mirrors, steering wheel)
1
Before driving CAUTION■
Using a seat belt extender ●
Do not wear the seat belt extender if you can fasten the seat belt without the
extender.●
Do 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 serious injury in the event of an accident.●
The personalized extender may not be safe on another vehicle, when used by
another person, or at a different seatin g position other than the one originally
intended.
NOTICE■
When 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 vehi cle interior and the extender itself.

1081-5. Refueling
CAUTION■
When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury. ●
After exiting the vehicle and before opening the fuel door, touch an unpainted
metal surface to discharge any static electricity. It is important to discharge static
electricity before refueling because sparks resulting from static electricity can
cause fuel vapors to ignite while refueling.●
Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fuel tank cap is loosened. Wait until
the sound cannot be heard before fully re moving the cap. In hot weather, pressur-
ized fuel may spray out of the filler neck and cause injury.●
Do not allow anyone that has not discharged static electricity from their body to
come close to an open fuel tank.●
Do not inhale vaporized fuel.
Fuel contains substances that are harmful if inhaled.●
Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.●
Do not return to the vehicle or touch an y person or object that is statically
charged.
This may cause static electricity to build up , resulting in a possible ignition hazard.■
When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank: ●
Securely insert the fuel nozzle into the fuel filler neck●
Stop filling the tank after the fuel nozzle automatically clicks off●
Do not top off the fuel tank
■
When replacing the fuel cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle.
Doing so may cause a fire or other incident which may result in death or serious
injury.

1101-6. Theft deterrent system
Engine immobilizer system 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.
This system is designed to help prev ent vehicle theft but does not guaran-
tee absolute security ag ainst all vehicle thefts.
Vehicles with a navigation system or the Lexus Display Audio sys-
tem
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that the system is oper-
ating.
The indicator light stops flashing
after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.
Vehicles without a navigation sy stem or the Lexus Display Audio
system
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that the system is oper-
ating.
The indicator light stops flashing
after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.

1111-6. Theft deterrent system
1
Before driving ■
System maintenance
The vehicle has a maintenance-free type engine immobilizer system.■
Conditions that may cause the system to malfunction ●
If the grip portion of the key is in contact with a metallic object●
If 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■
Certifications for the engine immobilizer system
This system meets the certification requirements of Radio Law.
For vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-1
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
For vehicles sold in Canada
This device complies with Industry Cana da licence-exempt RSS standard(s). Oper-
ation is subject to the following two conditions: (1) this device may not cause inter-
ference, and (2) this device must accept any interference, including interference
that may cause undesired operation of the device.
CAUTION■
Certifications for the immobilizer system
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
NOTICE
■
To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation
of the system cannot be guaranteed.

1211-7. Safety information
1
Before driving SRS airbag system components
Knee airbags
Front passenger airbag
Curtain shield airbags
Front side airbags
Front passenger occupant
classification system
(ECU and sensors)
“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Rear side airbags
SRS warning light
Driver airbag Curtain shield and rear side
airbag sensors
Driver's seat belt buckle
switch
Driver's seat position sensor
Airbag sensor assembly
Front airbag sensors
Front passenger’s seat belt
buckle switch
Door sensors
Seat belt pretensioners and
force limiters

1221-7. Safety information
Your vehicle is equipped with AD VANCED AIRBAGS designed based
on the US motor vehicl e safety standards (FMV SS208). The airbag sen-
sor assembly (ECU) controls airbag deployment based on information
obtained from the sensors etc. show n in the system components diagram
above. This information includes cras h severity and occupant informa-
tion. As the airbags deploy, a chemica l reaction in the infla tors quic kly fills
the airbags with non-toxi c gas to help restrain th e motion of the occu-
pants.■
If the SRS airbags deploy (inflate) ●
Bruising and slight abrasion s may result from contact with a deploying (inflating)
SRS airbag.●
A loud noise and white powder will be emitted.●
Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the seats, parts of the front and rear pillars, and roof side rails, may be hot
for several minutes. The airbag itself may also be hot.●
The windshield may crack.●
For Safety Connect subscribers, if the SR S airbags deploy or in the event of a
severe rear-end collision, the system is designed to send an emergency call to
the response center, notifying them of the vehicle’s location (without needing to
push the “SOS” button) and an agent will attempt to speak with the occupants
to ascertain the level of emergency and assistance required. If the occupants
are unable to communicate, the agent automatically treats the call as an emer-
gency and helps to dispatch the necessary emergency services. (  P. 6 4 2 )■
SRS airbag deployment conditions (SRS front airbags) ●
The SRS front airbags will deploy in the event of an impact that exceeds the
set threshold level (the level of force corresponding to an approximately 12 -
18 mph [20 - 30 km/h] frontal collision with a fixed wall that does not move or
deform).
However, this threshold velocity will be considerably higher in the following situa-
tions:
• If the vehicle strikes an object, such as a parked vehicle or sign pole, which
can move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in which
the front of the vehicle “underrides”, or goes under, the bed of a truck

1281-7. Safety information
CAUTION■
SRS airbag precautions
●
The SRS front passenger airbag also depl oys 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.●
Improperly 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 us ing 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 ar e safer for infants and children than the
front passenger seat. (  P. 1 3 7 ) ●
If the seat belt extender has been con-
nected to the front seat belt buckles but the
seat belt extender has not also been fas-
tened to the latch plate of the seat belt, the
SRS front airbags will judge that the driver
and front passenger are wearing the seat
belt even though the seat belt has not been
connected. In this case, the SRS front air-
bags may not activate correctly in a colli-
sion, resulting in death or serious injury in
the event of a collision. Be sure to wear the
seat belt with the seat belt extender.

1391-7. Safety information
1
Before driving CAUTION■
Child restraint precautions ●
For effective protection in automobile accidents and sudden stops, a child must
be properly restrained, using a seat belt or child restraint system depending on
the age and size of the child. Holding a chil d in your arms is not a substitute for a
child restraint system. In an accident, the child can be crushed against the wind-
shield, or between you and the vehicle's interior. This may cause death or serious
injury to the child in the event of a sudden stop or an accident.●
Lexus 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.●
Never install a rear-facing child restraint system on the front passenger seat even
if the “AIR BAG OFF” indicator light is illumi nated. 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 a rear-facing child restraint system is installed on the front
passenger seat.●
A forward-facing child restraint system may 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 possi-
ble and always move the seat as far back as possible even if the “AIR BAG OFF”
indicator light is illuminated, because th e front passenger airbag could inflate with
considerable speed and force. Otherwise, the child may be killed or seriously
injured.●
Do 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 a sudden stop, sudden swerve or accident.

1401-7. Safety information
CAUTION■
Child restraint precautions ●
Do 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 and rear pillars or roof side rails from which the
SRS side airbags or SRS 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 air-
bags inflate, and the impact could cause death or serious injury to the child.●
Make sure you have complied with all inst allation instructions provided by the
child restraint manufacturer and that the sy stem is properly secured. If it is not
secured properly, it may cause death or seri ous injury to the child in the event of a
sudden stop, sudden swerve or an accident.■
When children are in the vehicle
Do not allow children to play with the seat belt. If the seat belt becomes twisted
around a child’s neck, it may lead to choking or other serious injuries that could
result in death.
If this occurs and the buckle cannot be un fastened, scissors shou ld be used to cut
the belt.■
When the child restraint system is not in use ●
Keep the child restraint system properly secu red on the seat even if it is not in use.
Do not store the child restraint system unsecured in the passenger compartment.●
If it is necessary to detach the child restraint system, remove it from the vehicle or
store it securely in the luggage compartment. This will prevent it from injuring
passengers in the event of a sudden stop, sudden swerve or accident.