4708-2. Steps to take in an emergency
IS350/250_U (OM53758U)
■Wa r n i n g m e s s a g e s
The warning message illustrations used are intended as examples, and may differ from
the image that is actua lly displayed on the multi-information display.
■Warning message in radar cruise mode (if equipped)
In the following situations, the warning messag e may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the vehicle
ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■The LDA (Lane Departure Alert) lane departure warning function
In the following situations, the warning messag e will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LDA system func-
tions
●When the lane lines cannot be recognized
■Reset the maintenance data (U.S.A. only)
Make sure to reset the oil change system. ( P. 3 9 1 )
■Conditions that the tire pressure warning system may not function properly
P. 4 1 6
■Warning buzzer
P. 4 5 8
4898-2. Steps to take in an emergency
8
When trouble arises
IS350/250_U (OM53758U)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON mode.
When the smart access system with
push-button start is deactivated in cus-
tomization setting, the engine switch will
turn to ACCESSORY mode.
Firmly depress the brake pedal and check that is shown on the multi-
information display.
Press the engine switch.
In the event that the engine still cannot be started, contact your Lexus dealer.
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when stopping
the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the electronic
key battery be replaced immediatel y when the battery is depleted. (P. 4 2 7 )
■Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is pressed.
( P. 1 6 0 )
■When the electronic key does not work properly
●Make sure that the smart access system wi th push-button start has not been deacti-
vated in the custom ization setting. If it is off, turn the function on.
(Customizable features P. 5 2 5 )
●Check if battery-saving mo de is set. If it is set, cancel the function. ( P. 115)
Starting the engine
1
2
3
4
3
5269-2. Customization
IS350/250_U (OM53758U)
Some function settings are changed simultaneously with other functions being
customized. Contact your Lexus dealer for further details. Settings that can be changed using the Remote Touch or Lexus Display Audio
controller
Settings that can be changed using the meter control switches
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available, — = Not available
■Gauges, meters and multi-information display ( P. 76, 81, 86)
Customizable features
1
2
3
Function*1Default settingCustomized setting
LanguageEnglishFrenchOO—Spanish
Units*2miles (MPG US)
km (km/L)
—O—km (L/100 km)
miles (MPG Impe-
rial)
Maintenance system initial-
izationOFFON—O—
Eco Driving Indicator LightON (Self-lighting)OFF—O—
switch settings *3Drive information 1Desired status screen*4—O—
Drive information 1
Current fuel econ-
omy
*5—O—Average fuel econ-omy (after reset)
Drive information 2
Distance (range)
*5—O—Average speed (after reset)
Po p - u p d i s p l a yONOFF—O—
Accent color*3BlueRedOO—
Needle*6BlueRed—O—White
Speed indicator*6OFF30 to 100 mph (50
to 160 km/h)—O—
123
5279-2. Customization
9
Vehicle specifications
IS350/250_U (OM53758U)
*1: For details about each function: P. 8 8
*2: The default setting varies according to country.
*3:Except F SPORT models
*4: Some status screens cannot be registered (indicated on multi-information display).
*5: 2 of the following items: current fuel consumption, average fuel economy (after reset),
average fuel economy (after refuel), average fuel economy (after start), average vehi-
cle speed (after reset), average vehicle speed (after start), distance (driving range),
distance (after start), elapsed time (after reset), elapsed time (after start), blank.
*6:F SPORT models
■Door lock ( P. 103, 109, 488)
REV indicator*65000 rpm
2000 to 6600
rpm
—O—
OFF
REV peak*6ONOFF—O—
Function*1Default settingCustomized setting123
FunctionDefault settingCustomized setting
Unlocking using a mechani-
cal key
Driver’s door
unlocked in one step, all doors
unlocked in two
steps
All doors unlocked in one step——O
Automatic door lock
Shifting the shift
lever to position other than P
Off
O—OVehicle speed is
approximately 12
mph (20 km/h) or
higher
Automatic door unlockShifting the shift lever to POff
O—ODriver’s door is opened
Locking/unlocking of the
trunk when all doors are
locked/unlockedOnOff——O
123
550What to do if... (Troubleshooting)
IS350/250_U (OM53758U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 4 5 6 )
●The parking brake indicator is on
Is the parking brake released? ( P. 1 7 2 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 4 5 5 , 4 6 1 )
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 7 1 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. ( P. 4 6 1 )
●When a warning light turns on or a warning message is displayed, refer to
P. 4 5 5 , 4 6 1 . A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
556Alphabetical index
IS350/250_U (OM53758U)
Daytime running light system ............ 174
DefoggerFront windshield ................................ 350
Outside rear view mirrors ............ 350
Rear window ....................................... 350
Differential Front differential ................................. 505
Rear differential .................................. 505
Dimension ...............................................500
Dinghy towing......................................... 158
Display Drive information .................................. 87
Dynamic radar cruise control....... 196
LDA (Lane Departure Alert) ...... 209
Multi-information display ..................86
Warning message .............................. 461
Distance ...................................................... 88
Do-it-yourself maintenance ............. 397
Door courtesy lights Location ................................................. 356
Wattage ................................................. 509 Doors ..........................................................103
Automatic door locking and unlocking system ................... 106
Door glasses .......................................... 137
Door lock................................................ 105
Open door warning buzzer ..........104
Open door warning light .............. 456
Outside rear view mirrors .............. 134
Rear door child-protector ............. 106
Drive information .....................................87
Drive info 1/Drive info 2 ....................... 88
Driver’s seat position memory.......... 123
Driving ........................................................ 146 Break-in tips ........................................... 147
Correct driving posture .................... 28
Driving mode select switch ............ 231
Procedures .............................................146
Winter drive tips ................................ 254
Dynamic radar cruise control ........... 196
D
560Alphabetical index
IS350/250_U (OM53758U)
I/M test ..................................................... 396
IdentificationEngine ....................................................... 501
Vehicle ..................................................... 501
Ignition switch (engine switch)......... 159
Illuminated entry system .................... 357
Immobilizer system................................. 69
Indicators .................................................... 78
Initialization Maintenance.......................................... 391
Moon roof ...............................................142
Multi-information display ................. 88
Power windows ................................... 138
Tire pressure warning system..................................412
Initiators (tire pressure warning system).................................. 418
Inside door handle lights ................... 356
Inside rear view mirror .........................132
Instrument panel light control ............ 84
Interior lights........................................... 357 Wattage ................................................. 509
Intuitive parking assist........................... 214
Jack Positioning a floor jack ................... 400
Vehicle-equipped jack ................... 476
Jack handle .................................................. 476
Jam protection function Moon roof ................................................ 141
Power windows ................................... 138 Keyless entry
Smart access system with push-button start.........103, 109
Wireless remote control.......103, 109
Keys .............................................................. 98 Battery-saving function ..................... 115
Electronic key ......................................... 98
Engine switch ........................................159
If the electronic key does not operate properly ....... 488
Key number plate ................................. 98
Keyless entry ........................................... 98
Mechanical key...................................... 99
Replacing the battery .......................427
Warning buzzer...................................104
Wireless remote control................... 98
Knee airbags ..............................................36
I
J
K
561Alphabetical index
IS350/250_U (OM53758U)
Lane Departure Alert (LDA) ..........208
Language (multi-information display) ............... 88
LATCH anchors ...................................... 59
LDA (Lane Departure Alert) ..........208
Lever Auxiliary catch lever ........................ 399
Hood lock release lever ................ 399
Internal trunk release lever................. 111
Shift lever ................................................. 164
Tilt and telescopic steering lock release lever............................. 130
Turn signal lever .................................. 170
Wiper lever ............................................ 182
Lexus Display Audio system ............ 260
Lexus Display Audio controller...... 262
Lexus Enform
*
License plate lights................................. 173 Light switch .............................................173
Replacing light bulbs ........................ 442 Light bulbs
Replacing ............................................... 434
Wattage ................................................ 509
Lights Fog light switch ...................................... 181
Headlight switch .................................. 173
Illuminated entry system................. 357
Interior light........................................... 357
Interior lights list..................................356
Personal lights ..................................... 357
Replacing light bulbs ....................... 434
Trunk light................................................... 111
Turn signal lever ...................................170
Vanity lights ..........................................365
Wattage ................................................ 509
Lock steering column............................ 161
Low profile tire ........................................ 415
Luggage security system ..................... 110
L
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.