2010 Lexus HS250h steering wheel

5
When trouble arises
499
5-2. Steps to take in an emergency
CAUTION
●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.
■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 pressure 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 vehicle has been equipped with a tire pressure
monitoring system (TPMS-tire pressure warning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should 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 an d 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 driver’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 (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when th e system is not operating properly. The
TPMS (tire pressure warning system) malf unction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists . When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.

5
When trouble arises
503
5-2. Steps to take in an emergency
(If equipped)
Indicates a malfunction in the intuitive parking assistA buzzer also sounds.
The malfunctioning assi st-sensor is flashing.
(Flashes)
Indicates a malfunction in the cruise control system
A buzzer also sounds.
Press the “ON-OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
(Flashes)
(If equipped)
Indicates a malfunction in the radar cruise control
system A buzzer also sounds.
Stop the vehicle in a safe place. Turn the “POWER”
switch off and then turn it to ON mode again to reset
the cruise control system.
Indicates a malfunction in the EPS (Electric Power
Steering) systemA buzzer also sounds.
If the steering wheel becomes heavier than usual
when operating, hold firm ly and operate using more
force than usual.
Wa r n i n g m e s s a g eDetails

510
5-2. Steps to take in an emergency
Alerts the driver that the
vehicle is out of the lanes
(while the LKA system is
operating).A buzzer also sounds.
The lane markings and/
or the steering wheel
marking flash.
At the same time,
will appear on
the head-up display (the
image flashes).
Check the road condi-
tions and drive the vehicle
at a safe speed.
Indicates that the hybrid
system has overheated A buzzer also sounds.Stop and check.
( P. 5 4 1 )
(Flashes)
Indicates that the traction
battery is low
The warning buzzer
sounds intermittently.
When stopping the vehi-
cle for a long period of
time, change the shift
position to P. The battery
cannot be charged with
the shift position in N.
(Flashes)
Indicates that the traction
battery power has
dropped because a long
period of time has
elapsed after changing
the shift position to NThe warning buzzer
sounds continuously.
Restart the hybrid system
when starting the vehicle.
Wa r n i n g m e s s a g eDetailsCorrection procedure

592
Alphabetical index
Alphabetical index
A/CAir conditioning filter .......................450
Automatic air conditioning 
system .................................................. 252
ABS............................................................. 225
AFS .............................................................. 185
Adaptive front lighting system ......... 185
Air conditioning filter ......................... 450
Air conditioning system Air conditioning filter .......................450
Automatic air conditioning 
system .................................................. 252
Airbags Airbag operating 
conditions.................................. 106, 107
Airbag precautions for your 
child.......................................................... 110
Airbag warning light ........................ 493
Curtain shield airbag operating 
conditions.............................................107
Curtain shield airbag 
precautions .......................................... 110
Front passenger occupant 
classification system......................... 115
General airbag precautions ........... 110
Locations of airbags.......................... 103
Modification and disposal of 
airbags .....................................................114
Proper driving po sture ............. 101, 110
Side airbag operating 
conditions.............................................107
Side airbag precautions .................... 110
Side and curtain shield airbags 
operating conditions ......................107
Side and curtain shield airbags 
precautions .......................................... 110
SRS airbags ........................................... 103 Alarm ............................................................ 98
Antenna .................................................... 270
Anti-lock brake system ...................... 225
Armrest .....................................................377
Audio input.............................................. 307
Audio system
Antenna...................................................270
Audio input ........................................... 307
Audio visual input.............................. 307
AUX adapter ...................................... 307
CD player .............................................. 273
CD player/changer .......................... 273
MP3/WMA disc................................. 281
Optimal use ......................................... 304
Portable music player ..................... 307
Radio ....................................................... 265
Steering wheel audio switch........308
Audio visual input ................................. 307
Automatic air conditioning system Air conditioning filter ....................... 450
Air conditioning system ..................252
Automatic air conditioning 
system...................................................252
Automatic headlight leveling 
system ......................................................187
Automatic light control system........ 183
AUX adapter ......................................... 307
Auxiliary box .......................................... 370A

601
Alphabetical index
Steering wheelAdjustment ...............................................79
Audio switches ...................................308
Manual adjustment ...............................79
Power adjustment .................................79
Steering wheel position 
memory ................................................. 68
Stop light Replacing light bulbs ....................... 479
Wattage ................................................. 556
Storage feature ..................................... 363
Stuck If the vehicle becomes stuck ....... 545
Sun visors................................................... 371
Sunshade Rear .......................................................... 378
Roof ............................................................. 89
Switch Driving mode selector 
switch .................................................... 158
Engine switch ........................................ 147
Fog light switch..................................... 194
Ignition switch........................................ 147
Light switches........................................183
Mode select switch ........................... 158
Power door lock switch .....................57
Power switch ......................................... 147
Power window switch........................ 86
Tire pressure warning reset 
switch ................................................... 439
Window lock switch ........................... 86
Wiper and washer ..............................195 Tail lights
Replacing light bulbs ........................ 479
Switch........................................................ 183
Wattage ................................................. 556
Talk switch .....................................314, 333
Telephone switch ..................................333
Theft deterrent system Alarm...........................................................98
Immobilizer system ..............................96
Theft prevention labels ........................ 100
Tire inflation pressure ......................... 445
Tire information Glossary ................................................ 566
Size ........................................................... 563
Tire identification number..............562
Uniform Tire Quality Grading ... 564
Tires Chains .....................................................245
Checking ............................................... 437
Compact spare tire ........................... 521
If you have a flat tire ........................... 521
Inflation pressure ................................445
Inflation pressure sensor ............... 438
Information ........................................... 560
Replacing ................................................ 521
Rotating tires ........................................ 437
Size ........................................................... 555
Snow tires .............................................. 244
Spare tire ................................................. 521
Tire pressure warning 
system ......................................437, 495
Tools ............................................................ 521
Total load capacity ............................... 243T

603
Alphabetical index
Warning messagesCruise control ..................................... 502
Dynamic radar cruise 
control .................................... 502, 505
Electric power steering  system.................................................. 502
Engine oil maintenance..................505
Engine oil pressure............................ 501
EV drive mode ...................................505
Headlight ............................................... 502
Hood .......................................................505
Hybrid system ...................................... 501
Intuitive parking assist ........ 502, 505
Key .............................................................. 513
Lane-Keeping Assist .......................505
Moon roof .............................................505
Open door ...........................................505
Parking brake ......................................505
Pre-collision system ............ 502, 505
Smart access system with 
push start.............................................. 513
Tire pressure warning 
system..................................................505
Trunk ........................................................505
Washer fluid.........................................505 Washer
Checking ............................................... 432
Preparing and checking before winter .................................... 244
Switch........................................................ 195
Washing and waxing ...........................402
Weight Cargo capacity ................................... 243
Load limits ............................................. 243
Weight.................................................... 548
Wheels ......................................................448
Window glasses .......................................86
Window lock switch ...............................86
Windows Power windows .....................................86
Rear window defogger.................. 260
Washer .................................................... 195
Windshield wiper de-icer................... 261
Windshield wipers................................. 195
Wireless remote control key Locking/Unlocking ............................. 54
Replacing the battery.......................453
Wireless remote control key .......... 54
WMA disc ................................................ 281