2010 Lexus HS250h belt

540
5-2. Steps to take in an emergency
NOTICE
■Exclusive jump starting terminal precaution
The exclusive jump starting terminal is to be used when charging the 12-volt battery
from another vehicle in an emergency. It ca nnot be used to jump start another vehi-
cle.
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in
the cooling fans or belt.

544
5-2. Steps to take in an emergency
CAUTION
■To prevent an accident or injury when inspecting under the hood of your vehicle
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartm ent may be very hot, causing serious
injuries such as burns.
●Check that the indicator on the “POWER ” switch and the READY indicator are
off.
●For vehicles with a hybrid system, there are times when the gasoline engine auto-
matically starts to run or the cooling fans suddenly start to operate. Do not touch
or approach the rotating parts of the belt or fans. Doing so may lead to fingers,
clothes or tools getting caught, resulting in injury.
●Do not loosen the coolant reservoir cap while the hybrid system and radiator are
hot. 
Serious injuries, such as burns, may resu lt from hot coolant and steam released
under pressure.
NOTICE
■When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power control
unit coolant. 
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid system too
quickly can cause damage to the hybrid system.

549
6-1. Specifications
6
Vehicle specifications
This number is also on the Certifi-
cation Label.
■ Engine number and electric motor (tr
action motor) number
The numbers are stamped on the locations shown in the above illustration.
Engine
Model2AZ-FXE
Ty p e4-cylinder in line, 4-cycle, gasoline
Bore and stroke3.48 3.78 in. (88.5  96.0 mm)
Displacement144.1 cu.in. (2362 cm3)
Drive belt tensionAutomatic adjustment
Valve clearance
(engine cold)Intake: 0.007  0.011 in. (0.19  0.29 mm) 
Exhaust: 0.015
 0.019 in. (0.38  0.48 mm)

564
6-1. Specifications
Tire section names
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
Uniform Tire Quality Grading
This information has been prepared in accorda nce with regulations
issued by the National Highway Traffic Safety Administration of the U.S.
Department of Transportation. 
It provides the purchasers and/or prospective purchasers of Lexus vehi -
cles with information on uniform tir
e quality grading.
Your Lexus dealer will help answer an y questions you may have as you read
this information.
■ DOT quality grades
All passenger vehicle tires must co nfo
rm to Federal Safety Require-
ments in addition to these grades. Quality gr
ades can be found where
applicable on the tire sidewall between tread shoulder and maximum
section width.
For example: Treadwear 200 Traction AA Temperature A

581
6-2. Customization
6
Vehicle specifications
Driving
position
memory
(Driver’s
seat)
(  P. 6 8 )Called up when
door is opened
with smart
access system
with push-but-
ton start
Driver’s
doorAll doors———O
Intuitive
parking
assist 
Signal (buzzer)
when the dis-
tance to obsta-
cles does not
change for 3
seconds or more
OnOff———O
Signal (buzzer)
when the shift
position is
changed to N
OffOn———O
Active sensors
when the shift
position is out of
P or R
Front
corners
Rear
centers,
Rear
corners
———O
Seat belt
reminder 
(
P. 4 9 5 )
Vehicle speed
linked seat belt
reminder buzzer
OnOff———O
Reverse 
buzzer 
(  P. 1 5 9 )Signal (buzzer)
when the shift
position is in RIntermit-
tentSingle———O
: Refer to "Navigation System Owner's Manual"
ItemFunctionDefault
settingCustom- ized
setting

For owners7
585
Reporting safety defects 
for U.S. owners..................... 586
Seat belt instructions for 
Canadian owners 
(in French).............................. 587

587
7
For owners
Seat belt instructions for Canadian owners (in French)
The following is a French explanation of seat belt instructions extracted
from the seat belt section in this manual.
See the seat belt section for more d etailed seat belt instructions in
English.

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
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