2006 Lexus IS250 warning

344
5-2. Steps to take in an emergency
CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold
and inflated to the inflation pressure re commended by the vehicle manufacturer on
the vehicle placard or tire inflation pressu re label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [tire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicl e has been equipped with a tire pressure
monitoring system (TPMS-tire pressure warning system) that illuminates a low tire
pressure telltale (low tire pressure warning light) when one or more of your tires is
significantly under-inflated. Accordingly, when the low tire pressure telltale (low tire
pressure warning light) illuminates, you shou ld stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driv er's responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (low tire pressure warning light).

5
When trouble arises
345
5-2. Steps to take in an emergency
Have the malfunction repaired immediately.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 8 seconds.)
(Flashing)
Indicates that the
electronic key is
not present when
attempting to start
the engine.
Confirm the loca-
tion of the elec-
tronic key.
Once3 times
(Flashing)
Indicates that a
door other than
the driver’s door
has been opened
or closed with the
engine switch
OFF and the elec-
tronic key outside
of the detection
area.
Confirm the loca-
tion of the elec-
tronic key.

5
When trouble arises
353
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. 3 7 8 )
■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. 277)
STEP1
STEP2
STEP3

391
6-1. Specifications
6
Vehicle specifications
■Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controll ed conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2) times as
well on the government course as a tire graded 100.
The relative performance of tires de pends upon the actual conditions of
their use, however, and may depart significantly from the norm due to varia-
tions in driving habits, service practices and differences in road characteris-
tics and climate.
■ Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and
they represent the tire's ability to stop on wet pavement as measured
under controlled condit ions on specified government test surfaces of
asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering (turning) trac-
tion.
■ Temperature A, B, C
The temperature grades are A (the hi ghest), B, and C, representing
the tire's resistance to the generation of heat and its ability to dissipate
heat when tested under controlled conditions on a specified indoor
laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire fail-
ure.
The grade C corresponds to a level of performance which all passenger car
tires must meet under the Federal Mo tor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory
test wheel than the minimum required by law.

392
6-1. Specifications
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipp ed, air conditioning and
additional weight optional engine
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

399
6
Vehicle specifications
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Pow e r w i n d ow
• After reconnecting or changing the battery
• After changing a fuse
P. 4 1
Engine oil maintenance
dataAfter changing engine oilP. 2 6 4
Tire inflation pressure
warning system
• When the standard tire pressure changes by replacing tires or wheels
• When tires are rotated
• When tire pressure sensors are
replaced
• When driving with the tires inflated to a higher than standard tire pressure
P. 2 76
After reconnecting or performing main tenance on the battery, the follow-
ing items must be initialized for normal system operation.

404
Alphabetical index
Alphabetical index
A/C (Air conditioning system) ........ 162
ABS (Anti-lock brake system) ......... 139
Air conditioning filter ........................... 291
Air conditioning system (A/C)Air conditioning filter ......................... 291
Automatic air conditioning system .................................................... 162
Airbags Airbag operating conditions........... 59
Airbag precautions for your child.......................................................... 63
Airbag warning light ........................330
Curtain shield airbag operating conditions.............................................. 59
Curtain shield airbag
precautions .......................................... 63
General airbag precautions ........... 63
Locations of airbags............................ 57
Modification and disposal of airbags .................................................... 67
Proper driving po sture ............. 55, 63
Side airbag operating conditions.............................................. 59
Side airbag precautions .................... 63
SRS airbags ............................................. 57
Alarm ............................................................ 52
Antenna ..................................................... 178
Anti-lock brake system (ABS) ......... 139
Armrest ..................................................... 224
Ashtrays ......................................................217
Audio system Antenna ............................................... 178
AUX adapter........................................ 198
CD player/changer ............................ 181
MP3/WMA disc .................................187
Optimal use........................................... 195 Radio ......................................................... 174
Steering wheel audio switch.......... 199
Automatic air conditioning system ......................................................162
Automatic headlight leveling system ....................................................... 115
Automatic light control system.......... 113
Automatic transmission Automatic transmission ..................... 92
If the shift lever cannot be shifted from P....................................357
S mode .......................................................94
AUX adapter .......................................... 198
BA (Brake assist) ....................................139
Back-up lights Wattage ................................................. 383
Battery Checking..................................................271
If the vehicle has discharged battery ..................................................362
Preparing and checking before winter........................................151
Bottle holders......................................... 209
Brake Fluid ...........................................................270
Parking brake..........................................99
Brake assist (BA) ....................................139
Care Exterior ....................................................244
Interior......................................................246
Seat belts ................................................ 247
Cargo capacity........................................ 147
Cargo hooks .......................................... 230
CD changer ............................................... 181A
B
C

405
Alphabetical index
CD player................................................... 181
Chains ......................................................... 153
Child restraint system (CRS)Booster seats, definition.................... 68
Booster seats, installation .................. 72
Convertible seats, definition ........... 68
Convertible seats, installation ......... 72
Infant seats, definition ......................... 68
Infant seats, installation........................ 72
Installing CRS with lower anchorages ...........................................75
Installing CRS with seatbelts ........... 72
Installing CRS with top straps .........76
Child safety Airbag precautions ............................. 63
Battery precautions .............. 273, 364
Child restraint system ........................ 68
Child-protectors..................................... 16
How your child should wear the seatbelt ............................................33
Installing child restraints .......................71
Moon roof .................................................46
Power window lock switch ............... 41
Power window precautions.............43
Removed electronic key battery precautions ....................................... 294
Seat belt comfort guide....................... 31
Seat belt extender precautions ..... 35
Seat belt precautions...........................34
Seat heater precautions ........221, 223
Trunk ..............................................................21
Child-protectors ....................................... 16
Cigarette lighter ..................................... 218 Cleaning
Exterior.................................................... 244
Interior ..................................................... 246
Seat belts ................................................ 247
Clock .......................................................... 213
Coat hooks ..............................................228
Compass ..................................................238
Condenser .............................................. 270
Console box ...........................................206
Cooling system Engine overheating.......................... 365
Cornering assist sensors .................... 133
Cruise control Cruise control......................................... 121
Dynamic radar cruise control........124
Cup holder ............................................. 208
Curtain shield airbags............................ 57
Customizable features .......................395
Daytime running light system ............. 114
Defogger Rear window ......................................... 170
Side mirror.............................................. 170
Dimension................................................ 370
Dinghy towing ............................... 157, 158
Display Dynamic radar cruise control........124
Satellite switch mode .........................214
Trip information ..................................... 110
Warning message .............................334
Do-it-yourself maintenance .............255
Door courtesy lights Door courtesy lights .......................... 201
Wattage ................................................. 383
Door pockets..........................................209
D