warning light Lexus IS250 2008 Using the air conditioning system and defogger / LEXUS 2008 IS250 (OM53699U) Owner's Guide

5
When trouble arises
369
5-2. Steps to take in an emergency
If a warning message is displayed
Stop the vehicle immediately.A buzzer sounds and a warning message is shown on the multi-informa-
tion display. The following warnings indicate the possibility of damage to
the vehicle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Lexus dealer.
Wa r n i n g m e s s a g eDetails
(Flashing)
Indicates an abnormal engine oil pressure.
The warning light may turn on if the engine oil pres-
sure is too low.
If a warning is shown on the multi-information display, stay calm and per-
form the following actions:
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
multi-information display.
Multi-information display
If any of the warning li ght turns on again after performing the following
actions, contact your Lexus dealer.

370
5-2. Steps to take in an emergency
Have the vehicle inspected by your Lexus dealer immediately.
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. Failing to investigate the cause of the following warnings may
lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer immediately.
Wa r n i n g m e s s a g eDetails
(If equipped)
Indicates a malfunction in the AWD system.
(Flashing and then
continuously on)
Indicates a malfunction in the tire pressure warning
system. ( P. 3 0 7 )
The tire pressure warning light comes on after blink-
ing for 1 minute.
(Flashing)
Indicates a malfunction in the steering lock system.

5
When trouble arises
377
5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashing and then con-tinuously on)
(Flashing)
(If equipped)Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance.
• Switch the driving mode to either the normal or
power mode.
• If the windshield wipers
are on, turn them off or
set them to either the
intermittent or the slow
mode.
(Flashing)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in radar cruise
mode).
Slow the vehicle by apply-
ing the brakes.
■Changing the engine oil (U.S.A. only)
Make sure to reset the oil change system. ( P. 2 9 5 )
■Warning light display in radar cruise mode
In the following cases, the warning light may not be displayed even if vehicle-to-
vehicle distance closes.
●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

378
5-2. Steps to take in an emergency
Follow the correction procedures.After taking the specified steps to co rrect the suspected problem, check
that the warning light turns off.
Interior
buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
Once
(Comes on for 10 seconds.)
(Flashing)
Indicates that an
attempt was made
to start the engine
without the elec-
tronic key being
present, or the
electronic 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
or closed with the
“ENGINE START
STOP” switch in
any mode other
than OFF and the
electronic key
outside of the
detection area.
Confirm the loca-
tion of the elec-
tronic key.

5
When trouble arises
387
5-2. Steps to take in an emergency
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY”
on the tire sidewall.
Use the compact spare tire temporarily only in an emergency.
●Make sure to check the tire pressure of the compact spare tire. (P. 4 1 5 )
■When using the compact spare tire
As the compact spare tire is not equipped with the tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be warned. Also, if you
replace the compact spare tire after the tire pressure warning light comes on, the
light remains on.
■If you have a flat rear tire on a road covered with snow or ice
Install the compact spare tire on the front of the vehicle. Perform the following steps
and fit tire chains to the rear tires.
Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the vehi-
cle.
Fit tire chains to the rear tires.
■After completing the tire change
The tire pressure warning system must be reset. ( P. 3 0 8 )
STEP1
STEP2
STEP3

448
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
ABSAnti-Lock Brake System
AFSAdaptive Front-lighting System
AI-SHIFTArtificial Intelligence Shift
ALRAutomatic Locking Retractor
CALCalibration
CRSChild Restraint System
DISPDisplay
ECTElectronic Controlled Transmission
ECUElectronic Control Unit
EDREvent data recorder
ELREmergency Locking Retractor
EPSElectric Power Steering
ETCSElectronic Throttle Control System
GAWRGross Axle Weight Rating
I/MEmission inspection and maintenance
INTIntermittent
MMTMethylcyclopentadienyl Manganese Tricarbonyl
M + SMud and Snow
MTBEMethyl Tertiary Butyl Ether
OBDOn Board Diagnostics
PCSPre-Collision System
SRSSupplemental Restraint System
TINTire Identification Number
TPMSTire Pressure Warning System
TRACTraction Control

450
Alphabetical index
Alphabetical index
A/C ............................................................. 192
ABS.............................................................. 170
AFS .............................................................. 144
Adaptive front lighting system ......... 144
Air conditioning filter .......................... 322
Air conditioning systemAir conditioning filter ....................... 322
Automatic air conditioning system .................................................... 192
Airbags Airbag operating conditions.............81
Airbag precautions for your child.......................................................... 85
Airbag warning light ..........................361
Curtain shield airbag operating
conditions.............................................. 82
Curtain shield airbag precautions .......................................... 85
Front passenger occupant classification system......................... 90
General airbag precautions ........... 85
Locations of airbags............................ 79
Modification and disposal of airbags .................................................... 89
Proper driving po sture ............. 77, 85
Side airbag operating conditions.............................................. 82
Side airbag precautions .................... 85
SRS airbags ............................................. 79 Alarm .............................................................74
Antenna ....................................................208
Anti-lock brake system ........................170
Armrest .................................................... 255
Ashtrays.................................................... 248
Audio input.............................................. 228
Audio system
Antenna.................................................. 208
Audio input ........................................... 228
AUX adapter ...................................... 228
CD player/changer ............................. 211
MP3/WMA disc..................................217
Optimal use ..........................................225
Portable music player ..................... 228
Radio ....................................................... 204
Steering wheel audio switch.........229
Automatic air conditioning system ......................................................192
Automatic headlight leveling system ......................................................145
Automatic light control system.........143
Automatic transmission Automatic transmission ....................122
If the shift lever cannot be shifted from P....................................392
S mode ..................................................... 124
AUX adapter ......................................... 228A

452
Alphabetical index
CleaningExterior ....................................................274
Interior ......................................................277
Seat belts................................................ 278
Clock ......................................................... 244
Coat hooks ..............................................259
Compass .................................................. 269
Condenser ............................................... 301
Console box ........................................... 237
Cooling system Engine overheating ......................... 400
Cornering assist sensors .................... 164
Cruise control Cruise control .......................................152
Dynamic radar cruise control ...... 155
Cup holder ..............................................239
Curtain shield airbags............................ 79
Customizable features ....................... 436 Daytime running light system ............144
Defogger
Rear window ....................................... 200
Side mirror............................................ 200
Dimension ............................................... 406
Dinghy towing............................... 188, 189
Display Dynamic radar cruise control ....... 155
Satellite switch mode....................... 245
Trip information.................................... 140
Warning message ............................ 369
Do-it-yourself maintenance ............. 286
Door courtesy lights Door courtesy lights .......................... 231
Wattage ................................................. 420
Door pockets ...........................................241
Doors Door glasses............................................64
Door lock .................................22, 34, 37
Side mirrors............................................... 61
Driver's seat belt reminder light ..... 362
Driving Correct posture..................................... 77
Procedures.............................................108
Driving position memory...................... 46D

453
Alphabetical index
Electric power steering ....................... 170
Electronic keyIf the electronic key does not operate properly ............................ 394
Emergency, in case of If the engine will not start ................. 391
If the shift lever cannot be shifted from P ................................... 392
If the vehicle has discharged battery.................................................. 397
If the warning buzzer sounds...... 360
If the warning light turns on .......... 360
If the warning message is displayed ............................................ 369
If you have a flat tire ........................ 382
If you lose your keys ........................ 393
If you think something is wrong................................................... 356
If the electronic key does not operate properly ............................ 394
If your vehicle becomes stuck .... 402
If your vehicle needs to be towed ...................................................350
If your vehicle overheats................400 Engine
Compartment...................................... 292
Engine switch .......................................... 117
Hood ....................................................... 289
How to start the engine ..................... 117
Identification number .......................407
If the engine will not start................. 391
Ignition switch ......................................... 117
Overheating ........................................ 400
Engine compartment cover ............. 294
Engine coolant Capacity .................................................... 411
Checking ...............................................299
Preparing and checking before winter ..................................... 183
Engine coolant temperature gauge....................................................... 130
Engine immobilizer system.................. 72
Engine oil Capacity .................................................. 410
Checking ...............................................295
Preparing and checking before winter ..................................... 183
Engine oil maintenance data............298
EPS .............................................................. 170
Event data recorder ........................... 358E

460
Alphabetical index
Vanity lightsVanity lights .......................................... 243
Wattage.................................................. 420
Vanity mirrors ........................................ 243
VDIM .......................................................... 170
Vehicle dynamics integrated management ........................................ 170
Vehicle identification number ......... 407
Vehicle stability control....................... 170
Ventilators ...............................................253
VSC ............................................................. 170
Warning buzzers Brake system .......................................360
Open door .......................................... 362
Seat belt reminder............................. 362
Warning lights Anti-lock brake system.....................361
Brake assist system.............................361
Brake system .......................................360
Charging system .................................361
Electric power steering warning light .......................................361
Low fuel level ....................................... 362
Malfunction indicator lamp.............361
Master warning light ........................ 362
Open door ........................................... 362
Pre-collision system ...........................361
Pretensioners.........................................361
Seat belt reminder light .................. 362
SRS airbags ............................................361
Tire pressure warning light ........................................................ 362 Warning messages
AWD system....................................... 370
Dynamic radar cruise control ....................... 370, 373
Engine oil level.....................................373
Engine oil maintenance...................373
Engine oil pressure........................... 369
Hill-start assist control ..................... 372
Hood ........................................................373
Intuitive parking assist ......... 370, 373
Moon roof..............................................373
Open door ............................................373
Parking brake.......................................373
Pre-collision system............. 370, 373
Smart access system with push-button start ........................... 378
Steering lock........................................ 370
Tire pressure warning system................... 370, 373
Traction control................................... 372
Trunk.........................................................373
Vehicle stability control................... 372
Washer fluid .........................................373
Washer Checking............................................... 305
Preparing and checking before winter...................................... 183
Switch ........................................................ 147
Washing and waxing............................274
Weight Cargo capacity .................................... 179
Load limits............................................... 182
Weight .................................................... 406V
W