Page 452 of 529
5
429
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
*1:Open door warning buzzer:
P. 435
*2:Driver's and front passenger’s seat belt buzzer:
The driver’s and front passenger’s seat belt buzzer sounds to alert the
driver and front passenger that his or her seat belt is not fastened. The
buzzer sounds for 30 seconds after the vehicle reaches a speed of 20 km/
h (12 mph). Then, if the seat belt is still unfastened, the buzzer will sound
in a different tone for 90 more seconds.
(On the center
panel)
Front passenger’s seat belt
reminder light
(warning buzzer)
*2
Warns the front passenger
to fasten his/her seat belt.
Fasten the seat belt.
Master warning light
A buzzer sounds and the
warning light comes on
and flashes to indicate that
the master warning sys-
tem has detected a mal-
function.
P. 4 3 1
Warning lightWarning light/DetailsCorrection procedure
Page 453 of 529
430
5-2. Steps to take in an emergency
IS F_EE
If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empty, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional as soon as possible.
Front passenger detection sensor and passenger seat belt reminder and
warning buzzer
If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash and the warning
buzzer to sound, even if a passenger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
Page 454 of 529
5
431
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
If a warning message is displayed
If a warning is shown on the multi-information display, stay calm and
perform the following actions:
Master warning light
The master warning light also
comes on or flashes in order
to indicate that a message is
currently being displayed on
the multi-information dis-
play.
Multi-information display
If any of the warning lights turns on again after performing the
following actions, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Page 455 of 529
432
5-2. Steps to take in an emergency
IS F_EE
Stop the vehicle immediately.
A buzzer sounds and a warning message is shown on the multi-
information display. The following warning indicates the possibil-
ity of damage to the vehicle that may lead to an accident. Immedi-
ately stop the vehicle in a safe place and contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped
professional.
Warning messageDetails
(Flashing)
Indicates an abnormal engine oil pressure.
The warning light may turn on if the engine oil
pressure is too low.
(Flashing)
Indicates that the engine oil temperature is too
high.
The engine oil temperature gauge display will
also flash. (P. 161)
Page 456 of 529
5
433
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
Have the vehicle inspected immediately.
A buzzer sounds and a warning message is shown on the multi-
information display. Failing to investigate the cause of the follow-
ing warnings may lead to the system operating abnormally and
possibly cause an accident. Have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional, immediately.
Warning messageDetails
Indicates a malfunction in the headlight leveling
system.
(Flashing)
Indicates a malfunction in the steering lock sys-
tem.
(If equipped)
Indicates a malfunction in the pre-crash safety
system.
Page 462 of 529
5
439
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
(Flashing)
(If equipped)
Indicates that your vehi-
cle is nearing the vehi-
cle ahead (in radar
cruise mode).
Slow the vehicle by
applying the brakes.
(Flashing)
(If equipped)
Indicates that there is a
high possibility of a
frontal collision, or that
the pre-crash braking
function is operating.
Slow the vehicle by
applying the brakes.
Warning light display in radar cruise mode (if equipped)
In the following cases, the warning light may not be displayed even if vehi-
cle-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
Warning messageDetailsCorrection procedure
Page 463 of 529
440
5-2. Steps to take in an emergency
IS F_EE
Follow the correction procedures.
After taking the specified steps to correct the suspected problem,
check that the warning light turns off.
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure
Once
(Comes on for 10 sec-
onds.)
Indicates that an
attempt was
made to start the
engine without
the electronic
key being pres-
ent, or the elec-
tronic key was
not functioning
normally.
Start the engine
with the elec-
tronic key
present.
*
Once3
times
(Flashing)
Indicates that a
door other than
the driver’s door
has been opened
and closed with
the “ENGINE
START STOP”
switch in any
mode other than
OFF and the
electronic key
has been taken
out of the detec-
tion area.
Confirm the
location of the
electronic key.
Page 514 of 529

491
IS F_EE
Alphabetical index
Alphabetical index
A/C* ..........................................228
ABS ...........................................206
ACCESSORY mode .................146
Air conditioning filter ...............386
Air conditioning system
Air conditioning filter ...........386
Automatic air conditioning
system.................................228
Airbags
Airbag manual ON/OFF
system.................................135
Airbag operating conditions .107
Airbag precautions for your
child....................................111
Airbag warning light ............426
Curtain shield airbag operating
conditions ...........................107
Curtain shield airbag
precautions .........................111
General airbag precautions ...111
Locations of airbags .............105
Modification and disposal of
airbags ................................115
Proper driving posture ..103, 111
Side airbag operating
conditions ...........................107
Side airbag precautions.........111
SRS airbags ..........................105Alarm .......................................... 97
Antenna* .................................. 244
Anti-lock brake system............. 206
Armrest ..................................... 341
Ashtrays .................................... 336
Audio input* ............................. 277
Audio system*
Antenna................................ 244
Audio input .......................... 277
AUX port ............................. 277
Bluetooth
® audio ................. 279
CD player/changer ............... 245
iPod ...................................... 260
MP3/WMA disc................... 252
Optimal use .......................... 275
Portable music player .......... 277
Radio.................................... 241
Steering wheel audio switch 278
USB memory ....................... 268
USB port ...................... 260, 268
Automatic air conditioning
system* .................................. 228
Automatic headlight leveling
system .................................... 174
Automatic light control system 172
A
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s