warning Lexus IS F 2010 User Guide

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1
1-7. Safety information
Before driving
10_IS F_U
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

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1-7. Safety information
10_IS F_U
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

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1-7. Safety information
1
Before driving
10_IS F_U■
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
Devices Front 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
Devices Front 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

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1-7. Safety information
1
Before driving
10_IS F_U
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. 106)
●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
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10_IS F_U
2-1. Driving proceduresDriving 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...... 157 2-4. 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

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2-1. Driving procedures
10_IS F_U
■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.

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2-1. Driving procedures
2
When driving
10_IS F_U
■If the automatic transmission fluid temperature warning message is displayed
■AI-SHIFT
The AI-SHIFT automatically selects the optimal gear according to driver perfor-
mance and driving conditions.
The AI-SHIFT automatically operates when the shift lever is in the D position. How-
ever, operating the “-” paddle shift switch will restrict the function’s operation. (Shift-
ing the shift lever to the M position cancels the function.)
CAUTION
■When driving on slippery road surfaces
Be careful of downshifting and sudden acceleration, as this could result in the vehi-
cle skidding to the side or spinning.
If the automatic transmission fluid tempera-
ture warning message is displayed while driv-
ing, make sure you return to normal D
position driving and reduce speed by easing
off the accelerator pedal. Stop the vehicle in a
safe place, shift the shift lever to the P position
and let the engine idle until the warning mes-
sage goes out.
When the warning message goes out, the
vehicle can be driven again.
If the warning message does not go out after
waiting a while, have your vehicle inspected
by your Lexus dealer.

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2-2. Instrument cluster
2
When driving
10_IS F_U
Indicators and warning lights
The indicator and warning lights on the instrument cluster and center
panel inform the driver of the status of the vehicle’s various systems.
Instrument cluster
The units used on the speedometer and the tachometer gauge display may
differ depending on the model/type.

Center panel

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2-2. Instrument cluster
2
When driving
10_IS F_U
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not come on
when you start the engine, this could mean that these systems are not available to
help protect you in an accident, which could result in death or serious injury. Have
the vehicle inspected by your Lexus dealer immediately if this occurs.
■Warning lights
Warning lights inform the driver of malfunctions in any of the vehi-
cle’s systems. (→ P. 4 4 1 )
*: These lights turn on when the “ENGINE START STOP” switch is turned
to IGNITION ON mode to indicate that a system check is being per-
formed. They will turn off after the engine is started, or after a few sec-
onds. There may be a malfunction in a system if a light does not come on,
or if the lights do not turn off. Have the vehicle inspected by your Lexus
dealer.
(U.S.A.)(Canada)(Canada)(U.S.A.)
(Canada)(U.S.A.)(if equipped)(for
driver)(for front
passenger)
******
******

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2-2. Instrument cluster
10_IS F_U
Multi-information display
The multi-information display presents the driver with a variety of driving-
related data, including the current outside air temperature.
●Trip information ( →P. 1 4 7 )
Displays driving range, fuel con-
sumption and other cruising-
related information.
●Satellite switch mode display
(→P. 319)
This switch is used to configure
various function settings.
●Intuitive parking assist dis-
play (if equipped)
(→P. 171)
Automatically displayed when
using intuitive parking assist.
●Dynamic radar cruise con-
trol display (if equipped)
(→P. 1 6 1 )
Automatically displayed when
using dynamic radar cruise con-
trol.
●Warning messages
(→P. 4 5 1 )
Automatically displayed when a
malfunction occurs in one of the
vehicle’s systems.