2010 Lexus HS250h Air bag

5
When trouble arises
493
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
Have the vehicle inspected by your Lexus dealer immediately.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.
High engine coolant temperatur e warning light (flashes or
comes on)
Indicates that the engine is overheating →P. 5 4 1
• Flashes: Engine is overheating. Drive carefully.
• Comes on: Engine is overheated. Stop the vehicle.
Warning lightWarning light/Details
Brake system warning light (yellow indicator) Indicates a malfunction in:
• The regenerative brake system; or
• The electronically controlled brake system
(U.S.A.)

(Canada)
Malfunction indicator lampIndicates a malfunction in:
• The hybrid system;
• The electronic engine control system;
• The electronic throttle control system; or
• The hybrid transmission control system
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
(U.S.A.)

(Canada)
“ABS” warning lightIndicates a malfunction in:
•The ABS; or
• The brake assist system
Warning lightWarning light/Details

496
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)*
1: Open door warning buzzer:
→
P. 5 0 5
*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 inter-
mittently for 10 seconds after the vehicle reaches a speed of 12 mph (20 km/h).
Then, if the seat belt is still unfastened, the buzzer will sound in a different tone
for 20 more seconds.
Tire pressure warning light
When the light comes on:
Low tire inflation pressureAdjust the tire inflation pres-
sure.
When the light comes on after
blinking for 1 minute:
Malfunction in the tire pres-
sure warning system
Have the system checked by
your Lexus dealer.
■SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag sensors,
side and curtain shield airbag sensors, curtain shield and rear side airbag sensors,
driver’s seat position sensor, driver’s seat belt buckle switch, front passenger occu-
pant classification system, “AIR BAG ON” indicator light, “AIR BAG OFF” indicator
light, front passenger’s seat belt buckle switch, seat belt pretensioner assemblies,
inflators, interconnecting wiring and power sources. ( →P. 106)
■Front passenger detection sensor, passeng er 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.
Warning lightWarning light/DetailsCorrection procedure

594
HS250h_U_75033U(Canada)
Alphabetical index
Alphabetical index
A/CAir conditioning filter .......................450
Automatic air conditioning system (vehicles without
navigation system)......................... 252
Automatic air conditioning
system (vehicles with
navigation system) *
ABS............................................................. 225
AFS .............................................................. 185
Adaptive front lighting system ......... 185
Air conditioning filter ......................... 450
Air conditioning system (vehicles without navigation
system)Air conditioning filter .......................450
Automatic air conditioning system .................................................. 252
Air conditioning system (vehicles with navigation
system)*
Airbags
Airbag operating conditions..................................107, 108
Airbag precautions for your child............................................................ 111
Airbag warning light ........................ 493
Curtain shield airbag operating conditions............................................ 108
Curtain shield airbag
precautions ............................................ 111
Front passenger occupant
classification system......................... 116
General airbag precautions ............. 111
Locations of airbags.......................... 104
Modification and disposal of
airbags .................................................... 115 Proper driving posture.............. 102, 111
Side airbag operating
conditions ............................................108
Side airbag precautions.......................111
Side and curtain shield airbags operating conditions ......................108
Side and curtain shield airbags precautions .............................................111
SRS airbags............................................ 104
Alarm............................................................ 98
Antenna .................................................... 270
Anti-lock brake system ...................... 225
Armrest .....................................................377
Audio input.............................................. 307
Audio remote control switches*
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/video system*
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 ......................................................187A

595
Alphabetical index
HS250h_U_75033U(Canada)
Automatic light control system ........183
AUX adapter ......................................... 307
Auxiliary box .......................................... 370
Back-up lightsReplacing light bulbs ....................... 470
Wattage .................................................558
Battery
Checking ............................................... 433
If the vehicle has a discharged 12-volt battery .................................. 536
Preparing and checking
before winter.....................................244
Bluetooth
®................................................ 311
Bottle holders ........................................ 369
Brake Fluid .......................................................... 556
Parking brake ........................................160
Brake assist ..............................................225
Break-in tips ............................................. 137
Brightness control Instrument panel light
control ...................................................163
Care Exterior ................................................... 402
Interior.....................................................406
Seat belts ............................................... 407
Cargo capacity ......................................243
CD changer ............................................ 273
CD player.................................................273
Chains........................................................245 Child restraint system
Booster seats, definition .................... 121
Booster seats, installation ................. 131
Convertible seats, definition............ 121
Convertible seats, installation ........129
Front passenger occupant
classification system ......................... 116
Infant seats, definition .......................... 121
Infant seats, installation ..................... 128
Installing CRS with LATCH
anchors..................................................126
Installing CRS with seat belts ........ 128
Installing CRS with top tether straps ......................................................132
Child safety Airbag precautions ................................ 111
Child restraint system ......................... 121
Child-protectors .................................. 58
How your child should wear the seat belt .......................................... 75
Installing child restraints................... 125
Moon roof precautions........................91
Power window lock switch ..............86
Power window precautions ........... 88
Removed electronic key battery precautions........................................454
Seat belt extender precautions...... 78
Seat belt precautions .......................... 76
Seat heater precautions..................376
Trunk precautions................................. 62
12-volt battery precautions ...........435
Child-protectors ......................................58
Cleaning Exterior....................................................402
Interior .................................................... 406
Seat belts ................................................407
B
C
*: Refer to “Navigation System Owner’s Manual”.

596
Alphabetical index
HS250h_U_75033U(Canada)
Clock (vehicles withoutnavigation system) ............................ 373
Clock (vehicles with navigation system)*
Coin holder .............................................366
Compass ................................................... 391
Condenser ..............................................430
Console box ...........................................365
Cooling system Engine overheating ............................541
Cruise control Cruise control .......................................201
Dynamic radar cruise control .....205
Cup holders ............................................ 367
Curtain shield airbags.......................... 104
Customizable features ....................... 574
Daytime running light system ........... 186
Defogger Rear window........................................260
Side mirrors ..........................................260
Dimensions............................................. 550
Dinghy towing ........................................248
Display
Dynamic radar cruise control..................................................205
Multi-information display.................169
Trip information .................................... 172
Warning message.............................. 501
Do-it-yourself maintenance .............. 416
Door courtesy lights Door courtesy lights.........................360
Wattage................................................. 558
Doors
Door glasses ........................................... 86
Door lock.................................44, 54, 57 Rear door child protector................ 58
Side doors................................................. 57
Side mirrors............................................. 83
Driver’s seat belt reminder light ..... 495
Driver’s seat position memory ........... 68
Driving
Break-in tips........................................... 137
Correct posture................................... 102
Procedures............................................. 136
Winter driving tips .............................244
Driving position memory...................... 68
Electric power steering...................... 225
Electronic key If the electronic key does not operate properly............................ 533
Emergency, in case of If the electronic key does not
operate properly............................ 533
If the engine will not start ............... 530
If the hybrid system will not start ....................................................... 530
If the 12-volt battery is discharged ........................................ 536
If the warning buzzer sounds.......492
If the warning light turns on...........492
If the warning message is displayed ..............................................501
If you have a flat tire .......................... 521
If you lose your keys ........................ 532
If you think something is wrong .................................................. 489
If your electronic key does not operate properly ................... 533
If your vehicle becomes stuck .... 545
D
E

601
Alphabetical index
HS250h_U_75033U(Canada)
Seat beltsAdjusting the seat belt ........................ 74
Automatic Locking Retractor .........75
Child restraint system
installation ............................................ 125
Cleaning and maintaining
the seat belt....................................... 407
Emergency Locking Retractor .....75
How to wear your seat belt..............73
How your child should wear
the seat belt...........................................75
Pre-collision seat belts.....................232
Pregnant women, proper seat belt use..........................75
Reminder light..................................... 495
Seat belt extenders ...............................76
Seat belt pretensioners....................... 74
Seat heaters.............................................375
Seat position memory ........................... 68
Seat ventilator.........................................375
Seating capacity ....................................243
Seats
Adjustment .................................... 64, 68
Adjustment precautions .................................. 67, 70
Child seats/child restraint
system installation ............................ 125
Cleaning ................................................ 406
Driver’s seat position memory ................................................. 68
Head restraint ...........................................71
Properly sitting in the seat............... 102
Seat heaters.......................................... 375
Seat position memory ........................ 68
Ventilated seats .................................. 375 Service reminder indicators ............. 165
Shift lever
Transmission.......................................... 153
Side airbags.............................................. 104
Side marker lights Replacing light bulbs ....................... 469
Switch........................................................ 183
Wattage................................................. 558
Side mirrors Adjusting and folding..........................83
Mirror position memory....................68
Side turn signal lights
Replacing light bulbs ........................ 479
Wattage................................................. 558
Smart access system with push-button start
Antenna location ................................... 46
Entry functions........................................ 44
Starting the engine ............................. 145
Starting the hybrid system .............. 145
Smart entry & start system Antenna location ................................... 46
Entry function .......................................... 44
Starting the engine ............................. 145
SOS button .............................................395
Spare tire Inflation pressure................................557
Storage location .................................. 521
Spark plug................................................554
Specifications ........................................ 550
Speedometer .......................................... 162
Steering wheel Adjustment ............................................... 79
Audio switches................................... 308
Manual adjustment............................... 79
Power adjustment................................. 79
*: Refer to “Navigation System Owner’s Manual”.

603
Alphabetical index
HS250h_U_75033U(Canada)
Snow tires...............................................244
Spare tire ................................................. 521
Tire pressure warning system...................................... 437, 495
Tools ............................................................ 521
Total load capacity................................243
Towing Dinghy towing..................................... 248
Emergency towing ........................... 483
Trailer towing........................................247
TRAC .........................................................225
Traction control .....................................225
Trailer towing .......................................... 247
Trip meter.................................................. 162
Trunk Opener...................................................... 60
Turn signal lights Replacing light bulbs ....................... 469
Switch ........................................................159
Wattage .................................................558
Vanity lights Vanity lights ...........................................372
Wattage .................................................558
Vanity mirrors.........................................372
Vehicle identification number ........ 550
Vehicle stability control ......................225
Ventilators................................................375
VIEW switch*
VSC ............................................................225
Warning buzzers Brake system ....................................... 492
Open door .......................................... 495
Seat belt reminder ............................ 495 Warning lights
AFS OFF ................................................493
Anti-lock brake system ...................493
Brake assist system ...........................493
Brake system........................................492
Charging system................................ 492
Cruise control......................................493
Electric power steering
warning light .....................................493
Electronic engine control
system ..................................................493
High coolant temperature............. 492
Hybrid battery system .....................493
LKA ...........................................................493
Low fuel level ...................................... 495
Low tire pressure .............................. 495
Malfunction indicator lamp ...........493
Master warning light........................ 495
Open door ........................................... 495
Pre-collision system..........................493
Pretensioner .........................................493
Radar cruise co ntrol .........................493
Seat belt reminder light.................. 495
Slip indicator .........................................493
SRS airbags...........................................493
Tire pressure warning light .......... 495
Warning messages Cruise 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
V
W
*: Refer to “Navigation System Owner’s Manual”.