2012 Lexus HS250h belt

5
When trouble arises
551
5-2. Steps to take in an emergency
HS250h_U_75050U
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 cannot 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.

5
When trouble arises
555
5-2. Steps to take in an emergency
HS250h_U_75050U
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 compartment 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 result 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.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.)
●Do not use commercially available coolant additives

561
6-1. Specifications
6
Vehicle specifications
HS250h_U_75050UThis number is also on the Certifi-
cation Label.
■ Engine number
The engine numbers is stamped on
the engine block as shown.
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)

576
6-1. Specifications
HS250h_U_75050U
Tire section names
Bead
Sidewall
Shoulder
Tr e a d
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
Uniform Tire Quality GradingThis information has been prepared in accordance 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 tire quality grading.
Your Lexus dealer will help answer any questions you may have as you read
this information.
■ DOT quality grades
All passenger vehicle tires must conform to Federal Safety Require-
ments in addition to these grades. Quality grades can be found where
applicable on the tire sidewall between tread shoulder and maximum
section width.
For example: Treadwear 200 Traction AA Temperature A

593
6-2. Customization
6
Vehicle specifications
HS250h_U_75050U
Driving
position
memory
(Driver’s
seat)
(→ P. 7 2 )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
OnOff———O
Active sensors
when the shift
position is out of
P or R
Front
corners
Rear
centers, Rear
corners
———O
Seat belt
reminder
(
→P. 5 0 5 )
Vehicle speed
linked seat belt
reminder buzzer
OnOff———O
Reverse
buzzer
( → P. 1 6 3 )Signal (buzzer)
when the shift
position is in RIntermit-
tentSingle———O
∗ : Refer to "Navigation System Owner's Manual"
ItemFunctionDefault
settingCustom-
ized
setting

For owners7
597
HS250h_U_75050U
Reporting safety defects for U.S. owners..................... 598
Seat belt instructions for Canadian owners
(in French)
.............................. 599
SRS airbag instructions for Canadian owners
(in French) .............................. 601

599
7
HS250h_U_75050U
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 detailed seat belt instructions in
English.

615
Alphabetical index
HS250h_U_75050U
Back-up lightsReplacing light bulbs .........................481
Wattage .................................................568
Battery
Checking ................................................447
If the vehicle has a discharged 12-volt battery .................................. 547
Preparing and checking
before winter.................................... 258
Bluetooth
®* ........................................... 325
Bottle holders ........................................ 383
Brake Fluid .......................................................... 566
Parking brake ........................................ 167
Brake assist ............................................. 238
Break-in tips ............................................. 143
Brightness control Instrument panel light
control ................................................... 170
Care Exterior ..................................................... 416
Interior..................................................... 420
Seat belts ................................................. 421
Cargo capacity ......................................257
CD changer* ..........................................287
CD player* ..............................................287
Chains....................................................... 259
Child restraint system Booster seats, definition................... 126
Booster seats, installation ................130
Convertible seats, definition .......... 126
Convertible seats, installation .......130
Front passenger occupant
classification system ......................... 121 Infant seats, definition .........................126
Infant seats, installation ..................... 130
Installing CRS with LATCH
anchors................................................... 131
Installing CRS with seat belts ........ 133
Installing CRS with top tether straps ......................................................137
Child safety
Airbag precautions .............................. 116
Child restraint system ........................126
Child-protectors ................................... 62
How your child should wear the seat belt .......................................... 79
Installing child restraints................... 130
Moon roof precautions......................96
Power window lock switch ..............90
Power window precautions ............ 92
Removed electronic key battery
precautions....................................... 468
Seat belt extender precautions...... 82
Seat belt precautions ......................... 80
Seat heater precautions................. 390
Trunk precautions.................................66
12-volt battery precautions ...........449
Child-protectors ...................................... 62
Cleaning Exterior..................................................... 416
Interior .....................................................420
Seat belts ..................................................421
Climate control*
Clock* ....................................................... 387
Coin holder ............................................ 380
Compass ..................................................404
Condenser .............................................. 444
Console box ........................................... 379
B
*: For vehicles with a navigation system, refer to “Navigation System Owner’s Manual”.
C