2014 Lexus IS250 brake light

4808-2. Steps to take in an emergency
IS250_EE(OM53C51E)
■If the tire pressure warning light frequently comes on after blinking for 1 minute (if
equipped)
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mode, have it checked by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional. The vehicle will
become extremely unstable during braking, and the ABS system may fail, which could
cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and oper-
ate using more force than usual.
■If the tire pressure warning light comes on (if equipped)
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
XVehicles with a compact spare tire
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change it
with the spare tire and have the flat tire repaired by the nearest authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
XVehicles with an emergency tire puncture repair kit
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, repair the
flat tire by using emergency tire puncture repair kit.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

4888-2. Steps to take in an emergency
IS250_EE(OM53C51E)
Indicates that the engine switch is turned off or turned to
ACCESSORY mode and the driver’s door is opened
while the lights are turned on
A buzzer also sounds.
→Turn the lights off.
(If equipped)
Indicates that the moon roof is not fully closed (with the
engine switch off, and the driver’s door open)
A buzzer also sounds.
→Close the moon roof.
Indicates that the windows are not fully closed (with the
engine switch off, and the driver’s door open)
A buzzer also sounds.
→Close all the windows.
(If equipped)
Indicates that the windows and the moon roof are not
fully closed (with the engine switch off, and the driver’s
door open)
A buzzer also sounds.
→Close all the windows and the moon roof.
Indicates a malfunction in the brake override system
A buzzer also sounds.
→Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Indicates that engine oil level is low
A buzzer also sounds.
→Check the level of engine oil, and add if necessary.
Indicates a malfunction in:
• The automatic headlight leveling system; or
• The Automatic High Beam system (if equipped)
• The LED headlight system (if equipped)
A buzzer also sounds.
→Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)

4898-2. Steps to take in an emergency
8
When trouble arises
IS250_EE(OM53C51E)
Indicates that the accelerator and brake pedal are being
depressed simultaneously
→Release the accelerator or brake pedal.
Indicates that the washer fluid level is low
→Add washer fluid.
Indicates that remaining fuel is approximately 10 L (2.6
gal., 2.2 Imp. gal.) or less
→Refuel the vehicle.
Indicates that the TRC (Traction Control) system has
been deactivated
→Tu r n t h e T R C o n . (→P. 2 6 7 )
(If equipped)
Indicates that the fuel injectors require maintenance
soon
→Have any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional
add injector cleaner to the fuel tank and reset the
message as necessary.
(If equipped)
Indicates that the fuel injectors require maintenance
→Have any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional
add injector cleaner to the fuel tank and reset the
message.
(If equipped)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.
→Turn the high beam on and press the Automatic
High Beam switch again.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-crash brake system oper-
ation is stopped
→Tu r n t h e V S C o n . (→P. 2 6 7 )
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)

4948-2. Steps to take in an emergency
IS250_EE(OM53C51E)

Indicates that:
• With the engine switch off, the
doors were unlocked and then the
driver’s door was opened and
closed
• The engine switch was turned to
ACCESSORY mode without
starting the engine
• The shift lever was shifted to P or
N from another position with the
engine switch in IGNITION ON
mode.
→Press the engine switch while
depressing the brake pedal.
Once
The engine switch has been turned
off with the shift lever in a position
other than P or N.
→Shift the shift lever to P.
Once
After the engine switch has been
turned off with the shift lever in a
position other than P, the shift lever
has been shifted to P.
→Turn the engine switch off.

Power was turned off due to the
automatic power off function.
→Next time when starting the
engine, increase the engine
speed slightly and maintain that
level for approximately 5 min-
utes to recharge the battery.
Con-
tinuous
Indicates that the engine was
stopped in an emergency while driv-
ing
→To restart the engine, shift the
shift lever to N and turn the
engine switch to IGNITION
ON mode.
*
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)

5228-2. Steps to take in an emergency
IS250_EE(OM53C51E)
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. (→P. 5 2 7 )
●There may be a malfunction in the steering lock system.
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the problem cannot be repaired, or if repair procedures are
unknown.
When the engine does not start, the following steps can be used as an interim
measure to start the engine if the engine switch is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
The starter motor does not turn over, the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function
1
2
3
4

566What to do if... (Troubleshooting)
IS250_EE(OM53C51E)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. (→P. 1 6 7 )
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. (→P. 1 9 4 )
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (→P. 4 7 8 )
●The parking brake indicator is on
Is the parking brake released? (→P. 2 0 5 )
Depending on the situation, other types of warning buzzer may also sound.
(→P. 4 76 , 4 8 2 )

●Did anyone inside the vehicle open a door or anything move inside the vehicle
during setting the alarm?
The sensor detects them and the alarm sounds. (→P. 8 3 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds (if equipped)

568
IS250_EE(OM53C51E)Alphabetical index
Alphabetical index
A/C ............................................................ 376
Air conditioning filter........................440
Automatic air conditioning
system .................................................. 376
Blower customization .....................383
AAC disc .................................................. 319
ABS (Anti-lock Brake System) ....... 265
Function ..................................................265
Warning light ....................................... 477
Accent color ............................................ 102
Air conditioning filter ..........................440
Air conditioning system ..................... 376
Air conditioning filter........................440
Automatic air conditioning
system .................................................. 376
Blower customization .....................383Airbags .......................................................... 41
Airbag manual on-off system..........52
Airbag operating conditions ........... 47
Airbag precautions for
your child ...............................................43
Correct driving posture.....................34
Curtain shield airbag operating
conditions .............................................. 47
Curtain shield airbag
precautions .......................................... 45
General airbag precautions ............43
Locations of airbags ............................. 41
Modification and disposal of
airbags.....................................................46
Side airbag operating
conditions .............................................. 47
Side airbag precautions.....................43
Side and curtain shield airbags
operating conditions ........................ 47
Side and curtain shield airbags
precautions ...........................................43
SRS airbags ............................................... 41
SRS warning light .............................. 476
Airbag manual on-off system ............. 52
Alarm ............................................................ 83
Anchor brackets .......................................67
Antennas (smart entry &
start system) ........................................ 130
A

569Alphabetical index
IS250_EE(OM53C51E)
Anti-lock Brake System (ABS) ....... 265
Function ..................................................265
Warning light ....................................... 477
Approach warning ............................... 234
Armrest .................................................... 400
Assist grips ..............................................402
Audio input ............................................... 301
Audio system .......................................... 294
Audio CD player .................................319
Audio input ............................................ 301
AUX port/
USB port ............................................. 301
Bluetooth
® audio .............................. 343
iPod........................................................... 326
Optimal use ......................................... 309
Portable music player...................... 334
Radio .......................................................... 317
Steering wheel audio switch ....... 300
USB memory....................................... 329
Automatic headlight leveling
system .................................................. 208
Warning light ....................................... 477
Automatic High Beam .......................209
Automatic light control system ......206
AUX port .................................................. 301
Average fuel economy..........................101
Average vehicle speed .........................101Back-up light
Replacing light bulb ......................... 456
Wattage ................................................. 548
Battery....................................................... 422
Battery checking................................. 422
If the vehicle has discharged
battery...................................................527
Preparing and checking
before winter.................................... 288
Warning light....................................... 476
Blind Spot Monitor (BSM) .............. 278
Blower customization......................... 383
Bluetooth®
Audio system....................................... 343
Hands-free system
(for cellular phone) ....................... 345
Bottle holders......................................... 393
Brake
Fluid .......................................................... 545
Parking brake ...................................... 205
Warning light....................................... 476
Brake assist ............................................ 265
Break-in tips ............................................. 177
Brightness control
Instrument panel light control ........ 98
BSM (Blind Spot Monitor) ............... 278
B