cruise control Lexus HS250h 2010 Using the Bluetooth audio system / LEXUS 2010 HS250H (OM75006U) Owner's Guide

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5-2. Steps to take in an emergency
■Warning light display in radar cruise mode
In the following cases, the warning light may
not be displayed even if vehicle-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
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. ( P.
4 2 6 )

5
When trouble arises
527
5-2. Steps to take in an emergency
CAUTION
■When using the compact spare tire
●Remember that the compact spare tire provided is specifically designed for use
with your vehicle. Do not use your compact spare tire on another vehicle.
●Do not use more than one compact spare tire simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, deceleration an d braking, as well as sharp cornering.
■When storing the compact spare tire
Be careful not to catch fingers or other body parts between the compact spare tire
and the body of the vehicle.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may
not operate correctly:
●ABS & Brake assist
●Enhanced VSC
●TRAC
●Cruise control system
●Dynamic radar cruise control system (if equipped)
●Lane keeping assist (if equipped)
●Adaptive Front-lighting System (if equipped)
●Intuitive parking assist (if equipped)
●Pre-collision system (if equipped)
●Navigation system (if equipped)
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to observe
this precaution may lead to an accident causing death or serious injury.

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Alphabetical index
Child-protectors ......................................58
CleaningExterior ................................................... 402
Interior .....................................................406
Seat belts................................................ 407
Clock ......................................................... 373
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.......................... 103
Customizable features ....................... 572
Daytime running light system ........... 186
Defogger Rear window ........................................260
Side mirrors ..........................................260
Dimensions............................................. 548
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 ................................................. 556
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.....................................101
Procedures............................................. 136
Winter driving tips .............................244
Driving position memory...................... 68
D

599
Alphabetical index
Outer foot lightsOuter foot lights................................. 360
Wattage ................................................. 556
Outside rear view mirrors Adjusting and folding ......................... 83
Driving position memory ................. 68
Mirror position memory ................... 68
Outside temperature display ............ 169
Overhead console .............................. 370
Overheating, Engine ............................ 541
Overheating, Hybrid system............. 541
Parking brake .......................................... 163
Parking lights Replacing light bulbs ....................... 469
Switch ........................................................183
Wattage ................................................. 556
PCS.............................................................232
Personal lights Personal lights ....................................... 361
Switch ........................................................ 361
Wattage ................................................. 556
Power outlet ............................................374
Power switch............................................ 147
Power windows........................................ 86
Pre-collision system .............................232 Radar cruise control ............................205
Radiator ....................................................430
Radio ......................................................... 265
Radio data system ................................ 267
RDS ............................................................ 267
Rear side marker lights
Replacing light bulbs ........................ 479
Wattage ................................................. 556
Rear sunshade ....................................... 378
Rear turn signal lights Replacing light bulbs ........................470
Wattage ................................................. 556
Rear view mirror Compass................................................. 391
Rear window defogger ......................260
Replacing Electronic key battery ......................453
Fuses........................................................ 455
Light bulbs ............................................ 469
Tires ........................................................... 521
Reporting safety defects for 
U.S. owners ......................................... 586
Safety connect .......................................395
Scuff lighting ...........................................360
P
R
S

602
Alphabetical index
TowingDinghy 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 ........................................................ 162
Wattage..................................................556
Vanity lights Vanity lights .......................................... 372
Wattage..................................................556
Vanity mirrors ........................................ 372
Vehicle identification number ........ 548
Vehicle stability control...................... 225
Ventilators ............................................... 375
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 control ........................ 493
Seat belt reminder light .................. 495
Slip indicator ........................................ 493
SRS airbags .......................................... 493
Tire pressure warning light .......... 495
V
W

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

606
What to do if...
■Warning lights
P. 4 9 4
or
P. 4 9 2P. 4 9 4
P. 4 9 2P. 4 9 4
P. 4 9 3P. 4 9 4
P. 4 9 3P. 4 9 4
P. 4 9 5
or
P. 4 9 3P. 4 9 5
P. 4 9 3P. 4 9 5
P. 4 9 5
or
P. 4 9 3P. 4 9 5
P. 4 9 4P. 4 9 6
P. 4 9 4
Brake system warning light
(red indicator)“AFS OFF” indicator light
Slip indicator light
Charging system warning
light“LKA” indicator light
High engine coolant temperature
warning lightCruise control indicator light
Brake system warning light(yellow indicator)Radar cruise control 
indicator light
Malfunction indicator lampOpen door warning light
Low fuel level warning light
SRS warning lightDriver’s seat belt reminder
light
“ABS” warning lightFront passenger’s seat belt
reminder light
Master warning light
Electric power steering system
warning lightTire pressure warning light
Pre-collision system warning
light