
681-1. For safe use
IS350/300/200t_U (OM53D18U)
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if inhaled.
CAUTION
Exhaust gases include harmful carbon monoxi de (CO), which is colorless and odorless.
Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an accident
caused by light-headedness, or may lead to death or a serious health hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehicle ev en when the trunk lid is closed, open the
windows and have the vehicle inspected at your Lexus dealer as soon as possible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop the
engine.
●Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and ensure
that exhaust fumes do not enter the vehicle interior.
●Do not leave the engine running in an area with snow build-up, or where it is snowing.
If snowbanks build up around the vehicle wh ile the engine is running, exhaust gases
may collect and enter the vehicle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack caused
by corrosion, damage to a joint or abnormal exhaust noise, be sure to have the vehicle
inspected and repaired by your Lexus dealer.

721-2. Theft deterrent system
IS350/300/200t_U (OM53D18U)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-
ing:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
In the following cases, depending on the situation, the door may automatically lock to
prevent improper entry into the vehicle:
●The doors are unlocked manually without th e mechanical key and the alarm is trig-
gered.
●While the alarm is operating, the doors are unlocked manually without the mechanical
key.
●When recharging or replacing the battery
●A person inside the vehicle opens a door, the
trunk or hood, or unlocks the vehicle using a
inside lock button.
●The battery is recharged or replaced when the
vehicle is locked. ( P. 5 1 4 )
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation of
the system cannot be guaranteed.

782. Instrument cluster
IS350/300/200t_U (OM53D18U)
*1: These lights turn on when the engine switch is turned to IGNITION ON mode to indicate that a system check is being perfor med. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if the light
does not come on, or turn off. Have th e vehicle inspected by your Lexus dealer.
*2: The light flashes to indicate a malfunction.
The indicators inform the driver of the operating state of the vehicle’s various sys-
tems.
Indicators
Turn signal indicator
( P. 1 7 5 )
(if equipped)
LDA (Lane Departure
Alert) indicator ( P. 2 1 7 )
(U.S.A.)
Headlight indicator
( P. 1 7 8 )
(if equipped)
Intuitive parking assist indi-
cator ( P. 223)
(Canada)
Tail light indicator
( P. 1 7 8 ) *1, 2
Slip indicator ( P. 2 5 0 )
Headlight high beam indi-
cator ( P. 1 7 9 )
*1VSC OFF indicator
( P. 2 5 1 )
(if equipped)
Automatic High Beam indi-
cator ( P. 1 8 1 )*1, 3
(if equipped)
Pre-collision system warn-
ing light
( P. 2 5 6 )
(if equipped)
Fog light indicator
( P. 1 8 6 )*4, 5
(if equipped)
BSM (Blind Spot Monitor)
outside rear view mirror
indicators ( P. 2 6 2 )
Cruise control indicator
( P. 1 9 8 , 2 0 2 )
*6Security indicator
( P. 6 9 , 7 1 )
(if equipped)
Dynamic radar cruise con-
trol indicator ( P. 2 0 2 )*7Low outside temperature
indicator ( P. 8 1 )
Cruise control “SET” indica-
tor ( P. 198, 202)
*1Eco Driving Indicator Light
( P. 9 1 )

792. Instrument cluster
2
Instrument cluster
IS350/300/200t_U (OM53D18U)
*1: These lights turn on when the engine switch is turned to IGNITION ON mode toindicate that a system check is being perfor med. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if the light
does not come on, or turn off. Have th e vehicle inspected by your Lexus dealer.
*2: The light flashes to indicate that the system is operating.
*3: The light comes on when the system is turned off. The light flashes faster than usual to
indicate that the system is operating.
*4: In order to confirm operation, the BSM outside rear view mirror indicators illuminatein the following situations:
• When the engine switch is turned to IGNITION ON mode while the BSM main
switch is set to ON.
• When the BSM main switch is set to ON while the engine switch is in IGNITION
ON mode.
If the system is functioning correctly, the BSM outside rear view mirror indicators will
turn off after a few seconds.
If the BSM outside rear view mirror indica tors do not illuminate or do not turn off,
there may be a malfunction in the system.
If this occurs, have the vehicle inspected by your Lexus dealer.
*5: This light illuminates on the outside rear view mirrors.
*6: This light illuminates on the center panel.
*7: When the outside temperature is approximately 37 F (3 C) or lower, the indicator
will flash for approximately 10 seconds, then stay on.
*8:Except F SPORT models
*9:F SPORT models
*8Eco drive mode indicator
( P. 2 4 6 )*9
(if equipped)
“SPORT S+” indicator
( P. 2 4 6 )
*9Eco drive mode indicator
( P. 2 4 6 )*8Snow mode indicator
( P. 1 7 0 )
*8“SPORT” indicator
( P. 2 4 6 )*9Snow mode indicator
( P. 1 7 0 )
*9
(if equipped)
“SPORT” indicator
( P. 2 4 6 )*1, 6“AIR BAG ON/OFF”
indicator ( P. 4 7 )
*9
(if equipped)
“SPORT S” indicator
( P. 2 4 6 )

852. Instrument cluster
2
Instrument cluster
IS350/300/200t_U (OM53D18U)
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indicates
the maximum engine speed.
●The engine may be overheating if the engine coolant temperature gauge is in the red
zone (H). In this case, immediately stop the vehicle in a safe place, and check the
engine after it has cooled completely. (P. 5 1 6 )

1043-1. Key information
IS350/300/200t_U (OM53D18U)
NOTICE
■To prevent key damage
●Do not drop the keys, subject them to strong shocks or bend them.
●Do not expose the keys to high temp eratures for long periods of time.
●Do not get the keys wet or wash them in an ultrasonic washer etc.
●Do not attach metallic or magnetic materials to the keys or place the keys close to
such materials.
●Do not disassemble the keys.
●Do not attach a sticker or anything else to the surface of the electronic key.
●Do not place the keys near objects that pr oduce magnetic fields, such as TVs, audio
systems and induction cookers, or medical electrical equipment, such as low-fre-
quency therapy equipment.
■Carrying the electronic key on your person
Carry the electronic key 3.9 in. (10 cm) or mo re away from electric appliances that are
turned on. Radio waves emitted from electric appliances within 3.9 in. (10 cm) of the
electronic key may interfere with the key, causing the key to not function properly.
■In case of a smart access system with push-button start malfunction or other key-
related problems
Take your vehicle with all the electronic keys provided with your vehicle, including the
card key, to your Lexus dealer.
■When an electronic key is lost
If the electronic key remains lost, the risk of vehicle theft increases significantly. Visit
your Lexus dealer immediately with all rema ining electronic keys and the card key that
were provided with your vehicle.
■Handling the card key
●Do not apply excess force when inserting th e mechanical key into the card key. Doing
so may damage the card key.
●If the battery or card key terminals get wet, the battery may corrode.
If the key is dropped into water, or if drin king water etc. is spilled on the key, immedi-
ately remove the battery cover and wipe the battery and terminals. (To remove the
battery cover, lightly grasp and pull it.) If the battery is corroded, have your Lexus
dealer replace the battery.
●Do not crush the battery cover or use a screwdriver to remove the battery cover.
Forcibly removing the battery cover may bend or damage the key.
●If the battery cover is frequently removed, the battery cover may become loose.
●When installing the battery, make sure to check the direction of the battery.
Installing the battery in the wrong direction may cause the battery to deplete rapidly.
●The surface of the card key may be damaged, or its coating may peel off in the follow-
ing situations:
• The card key is carried together with hard objects, such as coins and keys.
• The card key is scraped with a sharp object , such as the tip of a mechanical pencil.
• The surface of the card key is wiped with thinner or benzene.

105
3
Operation of each component
IS350/300/200t_U (OM53D18U)3-2. Opening, closing and
locking the doors and trunk
◆Smart access system with push-button start
Carry the electronic key to enable this function.
Grip the driver’s door handle to
unlock the door. Grip the passen-
ger’s front door handle to unlock
all the doors.*
Make sure to touch the sensor on the
back of the handle.
The doors cannot be unlocked for 3
seconds after the doors are locked.
*: The door unlock settings can bechanged. ( P. 1 0 9 )
Touch the lock sensor (indentation on the upper part of the front door han-
dle) to lock all the doors.
Check that the door is securely locked.
◆Wireless remote control
Locks all the doors
Check that the door is securely
locked.
Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 5 seconds unlocks the
other doors.
Press and hold to open the windows
and moon roof.
*
*
: This setting must be customized at
your Lexus dealer.
Doors
Unlocking and locking the doors from the outside
1
2
1
2

1133-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350/300/200t_U (OM53D18U)
■Tr u n k l i g h t
The trunk light turns on when the trunk is opened.
■Function to prevent the trunk being locked with the electronic key inside
●When all doors are locked, closing the trunk lid with the electronic key left inside the
trunk will sound an alarm.
In this case, the trunk lid can be opened pressing the trunk release button on the trunk
lid.
●If the spare electronic key is put in the trunk with all the doors locked, the key confine-
ment prevention function is activated so the trunk can be opened. In order to prevent
theft, take all electronic keys with you when leaving the vehicle.
●If the electronic key is put in the trunk with all the doors locked, the key may not be
detected depending on the location of the key and the surrounding radio wave condi-
tions. In this case, the key confinement prevention function cannot be activated, causing
the doors to lock when the trunk is closed. Make sure to check where the key is before
closing the trunk.
●The key confinement prevention function canno t be activated if any one of the doors is
unlocked. In this case, open the trunk using the trunk opener.
■Internal trunk release lever
■Using the mechanical key
The trunk can be also opened using the mechanical key. ( P. 5 0 9 )
■If the smart access system with push-butto n start or the wireless remote control does
not operate properly
Use the mechanical key to unlock the trunk. ( P. 5 0 9 )
Replace the key battery with a new one if it is depleted. ( P. 4 5 0 )
■When leaving a key to the vehi cle with a parking attendant
P. 1 0 2
■Customization
The trunk unlocking operation can be changed. (Customizable features: P. 5 5 2 )
The trunk lid can be open
ed by pulling the glow-
in-the-dark lever located on the inside of the
trunk lid to the side.
The lever will continue to glow for some time
after the trunk lid is closed.