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1
2
3
4
5
6
7
3
IS250C/350C_U
2-1. Driving proceduresDriving the vehicle ........................ 138
Engine (ignition) switch .............. 147
Automatic transmission................ 151
Turn signal lever ............................ 158
Parking brake ................................. 159
Horn.................................................... 160
2-2. Instrument cluster Gauges and meters ....................... 161
Indicators and warning lights................................................. 167
Multi-information display............. 171
2-3. Operating the lights and windshield wipers
Headlight switch ............................ 176
Fog light switch .............................. 180
Windshield wipers and washer............................................. 182
Headlight cleaner switch ........... 189 2-4. Using other driving systems
Cruise control ................................ 190
Dynamic radar cruise control............................................. 194
Intuitive parking assist ............... 208
Driving assist systems.................. 214
Hill-start assist control ............... 220
PCS (Pre-Collision System) ........... 222
2-5. Driving information Cargo and luggage ..................... 229
Vehicle load limits........................ 232
Winter driving tips ....................... 233
Trailer towing ................................. 237
Dinghy towing ............................... 238
2When driving
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TABLE OF CONTENTSIndex
6
IS250C/350C_U
5-1. Essential informationEmergency flashers.................... 482
If your vehicle needs to be towed............................................. 483
If you think something is wrong ............................................ 489
Fuel pump shut off system ....... 490
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... .......................................... 491
If a warning message is displayed ...................................... 500
If you have a flat tire (vehicles with standard tires) .................... 513
If you have a flat tire (vehicles with run-flat tires) ...................... 522
If the engine will not start .......... 524
If the shift lever cannot be shifted from P .............................. 526
If you lose your keys .................... 527
If the electronic key does not operate properly .............. 528
If the vehicle battery is discharged ................................... 532
If your vehicle overheats .......... 536
If the vehicle becomes stuck............................................... 539
If the retractable hardtop does not close............................ 540 If your vehicle has to
be stopped in an
emergency .................................. 550
6-1. Specifications Maintenance data (fuel, oil level, etc.)..................... 552
Fuel information ............................ 569
Tire information............................. 573
6-2. Customization Customizable features.............. 586
6-3. Initialization Items to initialize .......................... 590
Reporting safety defects for U.S. owners........................... 592
Seat belt instructions for Canadian owners
(in French) ................................... 593
SRS airbag instructions for Canadian owners
(in French) .................................... 596
Headlight aim instructions for Canadian owners
(in French) ................................... 604
5When trouble arises
6Vehicle specifications
7For owners
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IS250C/350C_U
14
Pictorial indexInstrument panel
Headlight switch Turn signal lever
Fog light switch P. 176
P. 158
P. 180
Shift paddle switches P. 155
Gauges and meters P. 161
Multi-information display P. 171
Windshield wiper and washer switch P. 182
Engine (ignition) switch P. 147
Trunk opener main switch P. 51
Tilt and telescopic steering control switch P. 76
Audio remote control switches *1P. 300
Horn P. 160Glove box P. 357
Parking brake pedal P. 159
Hood lock release lever P. 413
Inside door lock buttons P. 47
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36
1-2. Opening, closing and locking the doors and trunk
IS250C/350C_U
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: Once; Unlocked: Twice)
■Conditions affecting operation
The smart access system with push-button start uses weak radio waves. In the fol-
lowing situations, the communication between the electronic key and the vehicle
may be affected, preventing the smart access system with push-button start from
operating properly:
(Ways of coping: →P. 5 2 8 )
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large display,
airport or other facility that generates strong radio waves or electrical noise
●When carrying a portable radio, cellular phone, cordless phone or other wire-
less communication devices
●When the electronic key is in contact with, or is covered by the following metal-
lic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When multiple electronic keys are in the vicinity
●When another wireless key (that emits radio waves) is being used nearby
●When carrying or using the electronic key together with the following devices
that emit radio waves
• Another vehicle's electronic key or a wireless key that emits radio waves
• Personal computer or personal digital assistant (PDA)
• Digital audio player
• Portable game system
●If window tint with a metallic content or metallic objects are attached to the rear
window
●Immediately after the retractable hardtop is opened or closed
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37
1-2. Opening, closing and locking the doors and trunk
1
Before driving
IS250C/350C_U
■Switching the door unlock function
It is possible to set which doors the entry function unlocks. Turn the “ENGINE START STOP” switch OFF.
When the indicator on the key surface is turned off, push and
hold , or for approximately 5 seconds while pushingon the key.
The setting changes each time an operation is performed, as shown below. (When
changing the setting continuously, release the buttons, wait for at least 5 seconds,
and repeat step 2.)
To prevent unintended triggering of the alarm, unlock the doors using the electronic
key and open and close a door once after the settings have been changed. (If a
door is not opened within 60 seconds after is pressed, the doors will be locked
again and the alarm will automatically be set.)
In case that the alarm is triggered, immediately stop the alarm. (→ P. 100)
STEP1
STEP2
Multi-information
displayUnlocking doorsBeep
Hold the driver's door handle
to unlock only the driver's
door.
Exterior: Beeps three
times
Interior: Pings once
Hold the passenger’s door
handle to unlock both side
doors.
Hold either door handle to
unlock both side doors.Exterior: Beeps twice
Interior: Pings once
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40
1-2. Opening, closing and locking the doors and trunk
IS250C/350C_U
●If the wireless remote control is used to lock the doors when the electronic key
is near the vehicle, there is a possibility that the door may not be unlocked by the
entry function. (Use the wireless remote control to unlock the doors.)
●A sudden approach to the effective range or door handle operation may prevent
the doors from being unlocked. In this case, return the door ha ndle to the original
position and check that the doors unlock before pulling the door handle again.
■When the vehicle is not driven for extended periods
To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of
the vehicle.
■Security feature
If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the anti-theft system automatically locks the vehicle again.
■Alarms and warning indicators
A combination of exterior and interior alarms as well as warnings displayed on the
multi-information display are used to prevent theft of the vehicle and unforeseeable
accidents resulting from erroneous operation. Take appropriate measures in
response to any warning indications on the multi-information display. ( →P. 500)
The following table describes circumstances and correction procedures when only
alarms are sounded.
AlarmSituationCorrection procedure
Exterior alarm
sounds once for 2
seconds
Tried to lock the doors using
the entry function while the
electronic key is still inside
the passenger compartmentRetrieve the electronic
key from the passenger
compartment and lock
the doors again.
Closed the trunk while the
electronic key is still inside
and both side doors are
lockedRetrieve the electronic
key from the trunk and
close the trunk lid.
Exterior alarm
sounds once for 60
seconds
Tried to exit the vehicle with
the electronic key and lock
the doors without first turning
the “ENGINE START STOP”
switch OFFTu r n t h e “ E N G I N E
START STOP” switch
OFF and lock the doors
again.
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86
1-4. Opening and closing the windows and retractable hardtop
IS250C/350C_U
Retractable hardtop
The retractable hardtop can be opened and closed using a switch.
Opening the retractable hardtop
Press and hold the switch until “COMPLETE” is shown on the dis-
play.
The side windows will open as retractable hardtop operation is performed.
A buzzer will sound when operation is complete.
Closing the retractable hardtop
Pull up and hold the switch until “COMPLETE” is shown on the dis-
play.
The side windows will open as retractable hardtop operation is performed.
A buzzer will sound when operation is complete.
Continuing to hold the switch up after operation is complete closes the
side windows.
Retractable hardtop status display ( →P. 8 8 )
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88
1-4. Opening and closing the windows and retractable hardtop
IS250C/350C_U
Retractable hardtop status displayInformation regarding the retractable hardtop is shown on the multi-
information display.
■ Roof Function Status Indicator
This indicator shows the operation status of the retractable hardtop.
Operation without interruption
During operation
The bar display shows the progress of the operation of the retractable
hardtop.
Completion of operation
When operation is finished, “COMPLETE” will be shown on the dis-
play.