2010 Lexus IS F warning

86
1-7. Safety information
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 lightDriver airbag
Driver's seat belt buckle switch
Driver's seat position sensor
Front passenger’s seat belt
buckle switch
Airbag sensor assembly
Front passenger occupant
classification system
(ECU and sensors)
Front airbag sensors

87
1-7. Safety information
1
Before driving
In certain types of severe frontal or side impacts, the SRS airbag system
triggers the airbag inflators. A chemical reaction in the inflators quickly
fills the airbags with non-toxic gas to help restrain the motion of the occu-
pants.
■SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag sensors,
side and curtain shield airbag sensor assemblies, curtain shield airbag sensor
assemblies, driver's seat position sensor, driver's seat belt buckle switch, seat belt
pretensioner assemblies, inflators, interconnecting wiring and power sources.
(P. 4 4 2 )
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasions 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, airbag cover and inflator) as well as
the front seats, and parts of the front pillar, rear pillar and roof side rail, may be
hot for several minutes. The airbag itself may also be hot.
●The windshield may crack.
●For Safety Connect subscribers, if the SRS 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. 3 4 5 )

97
1
1-7. Safety information
Before driving
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification sys-
tem. This system detects the conditions of the front passenger seat and
activates or deactivates the devices for the front passenger.
SRS warning light
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
Front passenger’s seat belt reminder light

98
1-7. Safety information
Condition and operation in the front passenger occupant classification system
■Adult*1
■Child *3 or child restraint system*4
Indicator/
warning light“AIR BAG ON” and “AIR BAG OFF” indi-
cator lights“A I R B A G
ON”
SRS warning light Off
Front passenger’s seat belt reminder light
Flashing
*2
DevicesFront passenger airbag
Activated Side airbag on the front
passenger seat
Front passenger knee airbag
Curtain shield airbag in the front passenger side
Front passenger’s seat belt pretensioner
Indicator/
warning light“AIR BAG ON” and “AIR BAG OFF” indi-
cator lights“A I R B A G
OFF”
*5
SRS warning light
Off
Front passenger’s seat belt reminder light
Flashing
*2
DevicesFront passenger airbag
Deactivated Side airbag on the front
passenger seat
Front passenger knee airbag
Curtain shield airbag in the front passenger sideActivated
Front passenger’s seat belt pretensioner

99
1-7. Safety information
1
Before driving
■Unoccupied
■There is a malfunction in the system
*
1: The system judges a person of adult size as an adult. When a smaller
adult sits in the front passenger seat, the system may recognize him/
her as a child depending on his/her physique and posture.
*
2: In the event the front passenger does not wear a seat belt.
*
3: When a larger child who has outgrown a child restraint system sits in
the front passenger seat, the system may recognize him/her as an
adult depending on his/her physique or posture.
Indicator/
warning light“AIR BAG ON” and “AIR BAG OFF” indi-
cator lightsNot illuminated
SRS warning light
Off
Front passenger’s seat belt reminder light
DevicesFront passenger airbag
Deactivated Side airbag on the front
passenger seat
Front passenger knee airbag
Curtain shield airbag in the front passenger sideActivated
Front passenger’s seat belt pretensioner Deactivated
Indicator/
warning light“AIR BAG ON” and “AIR BAG OFF” indi-
cator lights“A I R B A G
OFF”
SRS warning light On
Front passenger’s seat belt reminder light Off
DevicesFront passenger airbag
Deactivated Side airbag on the front
passenger seat
Front passenger knee airbag
Curtain shield airbag in the front passenger sideActivated
Front passenger’s seat belt pretensioner

101
1-7. Safety information
1
Before driving
CAUTION
■Front passenger occupant classification system precautions
●Do not recline the front passenger seatback so far that it touches a rear seat. This
may cause the “AIR BAG OFF” indicator light to be illuminated, which indicates
that the passenger’s airbags will not deploy in the event of a severe accident. If the
seatback touches the rear seat, return the seatback to a position where it does
not touch the rear seat. Keep the front passenger seatback as upright as possible
when the vehicle is moving. Reclining the seatback excessively may lessen the
effectiveness of the seat belt system.
●If an adult sits in the front passenger seat, the “AIR BAG ON” indicator light is illu-
minated. If the “AIR BAG OFF” indicator is illuminated, ask the passenger to sit
up straight, well back in the seat, feet on the floor, and with the seat belt worn cor-
rectly. If the “AIR BAG OFF” indicator still remains illuminated, either ask the pas-
senger to move to the rear seat, or if that is not possible, move the front passenger
seat fully rearward.
●When it is unavoidable to install the forward-facing child restraint system on the
front passenger seat, install the child restraint system on the front passenger seat
in the proper order. (P. 1 0 6 )
●Do not modify or remove the front seats.
●Do not kick the front passenger seat or subject it to severe impact. Otherwise,
the SRS warning light may come on to indicate a malfunction of the detection sys-
tem. In this case, contact your Lexus dealer immediately.
●Child restraint systems installed on the rear seat should not contact the front seat-
backs.
●Do not use a seat accessory, such as a cushion or seat cover, that covers the seat
cushion surface.
●Do not modify or replace the upholstery of the front seat.

When driving2
115
2-1. Driving procedures
Driving the vehicle................... 116
Engine (ignition) switch ......... 124
Automatic transmission ........ 128
Turn signal lever ....................... 136
Parking brake ........................... 137
Horn ............................................ 138
2-2. Instrument cluster
Gauges and meters ................ 139
Indicators and warning
lights ......................................... 143
Multi-information display ..... 146
2-3. Operating the lights and
windshield wipers
Headlight switch...................... 150
Fog light switch ........................ 153
Windshield wipers and
washer ..................................... 154
Headlight cleaner switch...... 1572-4. Using other driving
systems
Cruise control.......................... 158
Dynamic radar cruise
control ....................................... 161
Intuitive parking assist ............. 171
Driving assist systems ............. 177
PCS
(Pre-Collision System) ....... 184
2-5. Driving information
Cargo and luggage ................ 188
Vehicle load limits .................... 191
Winter driving tips .................. 192
Trailer towing ........................... 194
Dinghy towing .......................... 195

134
2-1. Driving procedures
■Downshift restrictions warning buzzer
To help ensure safety and driving performance, downshifting operation may some-
times be restricted. In some circumstances, downshifting may not be possible even
when the shift lever or paddle shift switch is operated. (A buzzer will sound twice.)
■When driving with the cruise control or dynamic radar cruise control
Engine braking will not occur during shift range selection in the D position, even
when downshifting to range 7, 6, 5 or 4. (P. 158, 161)
■Automatic deactivation of snow mode and “Sport” mode
If the “ENGINE START STOP” switch is turned OFF after driving in either snow
mode or “Sport” mode, the mode is automatically deactivated.
■If the shift lever cannot be shifted from P
P. 4 7 5
■If is not displayed after shifting the shift lever to M
●Within a few seconds of turning the “ENGINE START STOP” switch to IGNI-
TION ON mode, the transmission will not go into M mode if the shift lever is
moved to the M position. This is because a system check is being performed. In
this case, wait a moment and then try moving the shift lever to the M position
again.
●If the display does not change to on an occasion other than that
described above, it may indicate a malfunction in the automatic transmission
system. Have your vehicle inspected by your Lexus dealer immediately.
■Automatic gear selection when the vehicle is stopped
●When the vehicle comes to a stop, the transmission will automatically downshift
to allow you to start off in 1st gear.
●When the vehicle is idling at high rpm in order to warm up, and the vehicle is on
a slippery road, the transmission will automatically shift to 2nd gear for stopping
and starting off.