2010 Lexus HS250h window

464
4-3. Do-it-yourself maintenance
11ECU-IG NO.110 A
Rear view mirror, electronically con-
trolled brake system, electric power
steering system, moon roof, rain-sens-
ing windshield wiper, emergency
flashers switch, air conditioning sys-
tem, electric head restraints, driver
monitor, steering switch, seat heaters/
ventilators, electric tilt & telescopic
steering wheel, rear sun shead. AFS
12S/ROOF30 AElectric moon roof
13DOOR RL25 ARear power window (left-side)
14DOOR RR25 ARear power window (right-side)
15SHADE RR10 ARear sun shade
16D FR DOOR25 ADriver’s side power window, outside
rear view mirror
17P FR DOOR25 APassenger’s side power window, out-
side rear view mirror
18TI & TE30 AElectric tilt & telescopic steering
wheel
19STOP10 AStop lights, electronically controlled
brake system
20A/C NO.210 ANo circuit
FuseAmpereCircuit

498
5-2. Steps to take in an emergency
The tire pressure warning system may be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are nearby.
●If a radio set at similar frequency is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If there is a lot of snow or ice on the vehicle, particularly around the wheels or
wheel housings.
●If non-genuine Lexus wheels are used (Even if you use Lexus wheels, the tire
pressure warning system may not work properly with some types of tires.)
●If tire chains are used.
■If the tire pressure warning light comes on after flashing frequently for 1 minute
If the tire pressure warning light comes on after flashing frequently for 1 minute
when the “POWER” switch is turned to ON mode, have it checked by your Lexus
dealer.
■Customization that can be configured at Lexus dealer
The vehicle speed linked seat belt reminder buzzer can be disabled. 
(Customizable features P. 5 7 2 )
CAUTION
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy. 
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate it using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest Lexus dealer.

5
When trouble arises
533
5-2. Steps to take in an emergency
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked functions
Doors
Use the mechanical key (P
. 39)
in order to perform the following
oper
ations (driver’s door only):
Locks all the doors
Closes the windows and moon
roof (turn and hold)
*
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows and moon
roof (turn and hold)
*
*: This setting must be customized at your Lexus dealer.
If communication between the electron ic key and vehicle is interrupted
( 
P. 4 9 ) or the electronic key cannot be used because the battery is
depleted, the smart access system with push-button start and wireless
r
emote control cannot be used. In such cases, the doors and trunk can be
opened and the hybrid system can be started by following the procedure
below.

566
6-1. Specifications
Warning: The temperature grades of a tire assume that it is properly inflated
and not overloaded. 
Excessive speed, underinflation, or excess iv
e loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
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
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of transmission, 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)
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 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

580
6-2. Customization
Moon roof
(
P. 8 9 )
Mechanical key
linked opera-
tion*
OnOff———O
Linked operation
of components
when door key is
used
Slide onlyTilt only———O
Wireless remote
control linked
operation*On
(Open only)
Off———O
Linked operation
of components
when wireless
remote control
used
Slide onlyTilt only———O
Rear sun-
shade 
(  P. 3 7 8 )
Ti m e e l a p s e d
before the
reverse opera-
tion feature acti-
vates
0.7 sec-
onds
Off———O
0 seconds———O
0.9 sec-
onds———O
1.2 sec-onds———O
Reverse opera-
tionOnOff———O
*: This function cannot be customized un less power window operation using the
wireless remote control or mechanical key is enabled.
ItemFunctionDefault settingCustom- ized
setting

593
Alphabetical index
Back-up lightsReplacing light bulbs ....................... 470
Wattage ................................................. 556
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 .......................................................... 554
Parking brake ........................................ 163
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 .................. 120
Booster seats, installation ............... 130
Convertible seats, definition .......... 120
Convertible seats, installation ....... 128
Front passenger occupant 
classification system ......................... 115
Infant seats, definition ........................ 120
Infant seats, installation ...................... 127
Installing CRS with LATCH 
anchors ................................................. 125
Installing CRS with seat belts ......... 127
Installing CRS with top tether 
straps ....................................................... 131
Child safety Airbag precautions .............................. 110
Child restraint system ....................... 120
Child-protectors .................................. 58
How your child should wear 
the seat belt .......................................... 75
Installing child restraints....................124
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
B
C

594
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