TABLE OF CONTENTS6
IS350/250_U (OM53758U)
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 384
Cleaning and protecting the vehicle inte rior.................. 387
7-2. Maintenance Maintenance requirements ............................ 390
General maintenance.............. 393
Emission inspection and maintenance (I/M)
programs .................................... 396
7-3. Do-it-yourself maintenance Do-it-yourself service precautions.................................397
Hood ............................................... 399
Positioning a floor jack.............400
Engine compartment ................ 401
Tires..................................................... 411
Tire inflation pressure ............... 420
Wheels ........................................... 423
Air conditioning filter ............... 425
Electronic key battery...............427
Checking and replacing fuses.............................................. 429
Light bulbs .................................... 432 8-1. Essential information
Emergency flashers .................. 446
If your vehicle has to be stopped in
an emergency ...........................447
8-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 448
If you think something is wrong....................................... 453
Fuel pump shut off system ...... 454
If a warning light turns on or a warning buzzer
sounds ......................................... 455
If a warning message is displayed .................................. 461
If you have a flat tire ...................475
If the engine will not start ........ 485
If the shift lever cannot be shifted from P ..................... 487
If the electronic key does not operate properly .............488
If the vehicle battery is discharged............................. 490
If your vehicle overheats ......... 494
If the vehicle becomes stuck .............................................. 497
7Maintenance and care8When trouble arises
842. Instrument cluster
IS350/250_U (OM53758U)
The brightness of the instrument panel lights can be adjusted.
Darker
Brighter
■The meters and display illuminate when
The engine switch is in IGNITION ON mode.
■Instrument panel brightness adjustment
The instrument panel brig htness levels when the tail ligh ts are on and off can be adjusted
individually. However, when the surroundings ar e bright (daytime, etc.), turning on the tail
lights will not change the instru ment panel brightness. At this time, any adjustments made
to the instrument panel bright ness levels will be applied to both settings at once.
■Outside temperature display
In the following situations, the correct outside temperature may not be displayed, or the
display may take longer than normal to change.
●When stopped, or driving at low speeds (less than 12 mph [20 km/h])
●When the outside temperature has changed suddenly (at the entrance/exit of a garage,
tunnel, etc.)
■Pop-up display
In some situations, such as when a switch op eration is performed, a pop-up display, such
as the operating methods of the headlight sw itch, will be temporarily displayed on the
multi-information display or the odometer/t rip meter screen (F SPORT models only).
The pop-up display function can be set on/off. ( P. 8 9 )
■Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem continuing to use the display.
■Customization
The meter display can be customized on the multi-information display. (P. 8 6 )
Instrument panel light control
1
2
882. Instrument cluster
IS350/250_U (OM53758U)
■Distance (driving range/after start)*
Displays the estimated maximum distance that can be driven with the quantity
of fuel remaining and the distance driv en after the engine was started respec-
tively.
• This distance is computed based on your average fuel consumption. As a result,
the actual distance that can be driven may differ from that displayed.
• When only a small amount of fuel is added to the tank, the display may not be
updated.
When refueling, turn the engine switch off. If the vehicle is refueled without turning
the engine switch off, the display may not be updated.
■Eco Driving Indicator
P. 9 0
■Tire inflation pressure
P. 4 1 2
■Gear positions
P. 1 6 8
*: Displayed when the item is set in “Drive Info 1” or “Drive Info 2”. Use these values as a
reference.
■Language
Select to change the language on the display.
■Units
Select to change the unit of measure for fuel consumption.
■Maintenance system
Select to reset the maintenance data after the required maintenance is per-
formed. (
P. 3 9 1)
■Eco Driving Indicator Light
Select to activate/deactivate th e Eco Driving Indicator Light.
■ switch settings (except F SPORT models)
Displays a procedure to register a desired screen to .
You can register 1 screen as a shortcut, which can be displayed by pressing . (
P. 8 7 )
■Drive information 1 /Drive information 2
Select to select up to 2 items that will be displayed on the “Drive Info 1” screen
and “Drive Info 2” screen respectively. (
P. 8 7 )
Settings display
892. Instrument cluster
2
Instrument cluster
IS350/250_U (OM53758U)
■Pop-up display
Select to set the following pop-up displays, which may appear in some situa-
tions, on/off. • Route guidance display of the navigation system-linked system (if equipped)
• Incoming call display of the hands-free phone system
• Windshield wiper switch operation display (if equipped)
• Headlight switch operation display (if equipped)
• Dynamic radar cruise control operation display (if equipped)
• Instrument panel brightness adjustment display
• Main meter switch operation display (F SPORT models)
■Accent color (except F SPORT models)
Select to change the accent colors on the screen, such as the cursor color.
■Needle (F SPORT models)
Select to change the needle color for the tachometer.
■Speed indicator (F SPORT models)
Select to set the speed indicator on/
off.
When set to on, both sides of the dis-
played speed unit will turn yellow
when the vehicle reaches a set
speed.
Selectable speed range:
30 mph to 100 mph (50 km/h to
160 km/h)
*
The indicator will illuminate in yellow at an optionally set speed and red at the fixed
high speed.
*: Always observe the legal speed limit when driving on public roads.
■Rev indicator (F SPORT models)
Select to set the rev indicator on/off.
When set to on, the tachometer will
show a ring-shaped indicator in red
when the engine reaches a set speed.
Selectable engine speed range:
2000 rpm to 6600 rpm.
902. Instrument cluster
IS350/250_U (OM53758U)
■Rev peak (F SPORT models)
Select to set the rev peak on/off.
When set to on and the engine speed
reaches or exceeds 5000 rpm, an
afterimage of the tachometer will be
displayed at the highest engine
speed for approximately 0.5 sec-
onds.
■Initialization
Select to reset the meter display settings. ( P. 5 2 6 )
■Eco Driving Indicator
Eco Driving Indicator will not operat e under the following conditions:
●The shift lever is in any position other than D.
●A paddle shift switch is operated.
●Neither normal mode nor Eco drive mode is selected. (P. 2 3 1 )
●The vehicle speed is approximately 80 mph (130 km/h) or higher.
■Suspension of the settings display
In the following situations, th e settings display using the meter control switches will be
suspended.
●When a warning message appears on the multi-information display
●When the vehicle begins to move
Eco Driving Indicator Light
During Eco-friendly acceleration (Eco driv-
ing), the Eco Driving Indicator Light will turn
on. When the acceleration exceeds the Zone
of Eco driving, or when the vehicle is stopped,
the light turns off.
Eco Driving Indicator Zone Display
Suggests the Zone of Eco driving with current
Eco driving ratio based on acceleration.
Eco driving ratio based on acceleration
If the acceleration exceeds the Zone of Eco
driving, the right side of the Eco Driving Indi-
cator Zone Display will illuminate.
Zone of Eco driving1
2
3
4
1073-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350/250_U (OM53758U)
■Switching the door unlock function
It is possible to set which doors the entry function unlocks using the wireless remote con-
trol. Turn the engine switch off.
When the indicator light on the key su rface is not on, press and hold , or
for approximately 5 seconds while pressing and holding .
The setting changes each time an operatio n is performed, as shown below. (When
changing the setting continuously, release the buttons, wait for at least 5 seconds, and
repeat step .)
To prevent unintended triggering of the alarm, unlock the doors using the wireless
remote control and open and close a door once after the settings have been changed. (If
a door is not opened within 60 seconds af ter is pressed, the doors will be locked
again and the alarm will automatically be set.)
In a case that the alarm is triggered, immediately stop the alarm. ( P. 7 1 )
■Impact detection door lock release system
In the event that the vehicle is subject to a strong impact, all the doors are unlocked.
Depending on the force of the impact or the type of accident, however, the system may
not operate.
■Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. ( P. 4 8 8 )
■Conditions affecting the operation of the sm art access system with push-button start
or wireless remote control
P. 116
■Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features: P. 5 2 5 )
1
2
2
Multi-information
displayUnlocking functionBeep
Holding the driver’s door handle
unlocks only the driver’s door.
Exterior: Beeps 3 times
Interior: Pings once
Holding a passenger’s door han-
dle unlocks all the doors.
Holding a door handle unlocks
all the doors.Exterior: Beeps twice
Interior: Pings once
1173-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350/250_U (OM53758U)
■Note for the entry function
●Even when the electronic key is within the effective range (detection areas), the system
may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near the
ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear
bumper center when the trunk is opened.
• The electronic key is on the instrument pa nel, rear package tray or floor, or in the
door pockets or glove box when the engine is started or engine switch modes are
changed.
●Do not leave the electronic key on top of th e instrument panel or near the door pockets
when exiting the vehicle. Depending on the radio wave reception conditions, it may be
detected by the antenna outside the cabin and the doors will become lockable from the
outside, possibly trapping the el ectronic key inside the vehicle.
●As long as the electronic key is within the effective range, the doors may be locked or
unlocked by anyone. However, only the door s detecting the electronic key can be used
to unlock the vehicle.
●Even if the electronic key is not inside the vehicle, it may be possible to start the engine
if the electronic key is near the window.
●The doors may unlock or lock if a large amou nt of water splashes on the door handle,
such as in the rain or in a car wash, when th e electronic key is within the effective range.
(The doors will automatically be locked af ter approximately 30 seconds if the doors
are not opened and closed.)
●If the wireless remote control is used to lo ck the doors when the electronic key is near
the vehicle, there is a possibility that the door may not be unlocked by the entry func-
tion. (Use the wireless remote control to unlock the doors.)
●Touching the door lock or unlock sensor while wearing gloves may prevent lock or
unlock operation.
●When the lock operation is performed using the lock sensor, recognition signals will be
shown up to two consecutive times. After this, no recognition signals will be given.
●If the door handle becomes wet while the el ectronic key is within the effective range,
the door may lock and unlock repeatedly. In this case, follow the following correction
procedures to wash the vehicle:
• Place the electronic key in a location 6 ft. (2 m) or more away from the vehicle. (Take
care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the smart access system with push-button start. ( P. 1 1 5 )
●If the electronic key is insi de the vehicle and a door handle becomes wet during a car
wash, a message may be shown on the multi-information display and a buzzer will
sound outside the vehicle. To turn off the alarm, lock all the doors.
●The lock sensor may not work properly if it comes into contact with ice, snow, mud, etc.
Clean the lock sensor and attempt to operate it again, or use the lock sensor on the
lower part of the door handle.
●A sudden handle operation or a handle operation immediately after entering the effec-
tive range may prevent the doors from bein g unlocked. Touch the door unlock sensor
and check that the doors are unlocked before pulling the door handle again.
●Unlocking the vehicle may take more time if another electronic key is within the effec-
tive range.
1393-5. Opening, closing the windows and moon roof
3
Operation of each component
IS350/250_U (OM53758U)
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key.*( P. 4 8 8 )
●The power windows can be opened us ing the wireless remote control.* ( P. 1 0 3 )
*: These settings must be customized at your Lexus dealer.
■When the battery is disconnected
The window lock switch is disabled. If nece ssary, press the window lock switch after
reconnecting the battery.
■Power windows open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the instru-
ment cluster when the engine switch is turned off and the driver’s door is opened with the
power windows open.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features: P. 5 2 5 )
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■Closing the windows
●Check to make sure that all passengers do not have any part of their body in a posi-
tion where it could be caught when a window is being operated.
●Do not allow children to operate the power windows.
Closing a power window on someone can cause serious injury, and in some
instances, even death.
■Jam protection function
●Never use any part of your body to intentio nally activate the jam protection function.
●The jam protection function may not work if something gets caught just before the
window fully closes.