engine Lexus IS300h 2013 Repair Manual

5649-1. Specifications
IS300h_EE(OM53B95E)
Engine
Model2AR-FSE
Type4-cylinder in line, 4-cycle, gasoline
Bore and stroke90.0  98.0 mm (3.54  3.86 in.)
Displacement2494 cm3 (152.2 cu. in.)
Valve clearance
(engine cold)Automatic adjustment
Drive belt tensionAutomatic adjustment
Fuel
Fuel type
EU area:
Unleaded gasoline conforming to European stan-
dard EN228 only
Except EU area:
Unleaded gasoline only
Research Octane Num-
ber95 or higher
Fuel tank capacity
(Reference)66 L (17.4 gal., 14.5 Imp. gal.)
Electric motor (traction motor)
TypePermanent magnet synchronous motor
Maximum output105 kW
Maximum torque300 N•m (30.6 kgf•m, 221.3 ft•lbf)
Hybrid battery (traction battery)
TypeNickel-Metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity32 modules
Overall voltage230.4 V

565
9 9-1. Specifications
Vehicle specifications
IS300h_EE(OM53B95E)
Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing the
engine oil. Warm up the engine and turn off the hybrid system, wait more than
5 minutes, and check the oil level on the dipstick.
Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Lexus rec-
ommends the use of approved “Toyota Genuine Motor Oil”. Another
motor oil of matching quality can also be used.
Oil grade:
0W-20, 5W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Conserving” or SN
“Resource-Conserving”; or ILSAC multigrade engine oil
15W-40 and 20W-50:
API grade SL, SM or SN multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-20 is filled into your
Lexus vehicle at manufacturing,
and the best choice for good fuel
economy and good starting in
cold weather.
If SAE 0W-20 oil is not avail-
able, SAE 5W-30 oil may be
used. However, it should be
replaced with SAE 0W-20 at the
next oil change.
If you use SAE 10W-30 or a
higher viscosity engine oil in
extremely low temperatures, the
engine may become difficult to
start, so SAE 0W-20, 5W-20 or
5W-30 engine oil is recom-
mended.
Lubrication system
With filter4.5 L (4.8 qt., 4.0 Imp. qt.)
Without filter4.1 L (4.3. qt., 3.6 Imp. qt.)
Temperature range anticipated
before next oil change.Preferred

5669-1. Specifications
IS300h_EE(OM53B95E)
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allows
cold startability. Oils with a lower value before the W allow for eas-
ier starting of the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil
when the oil is at high temperature. An oil with a higher viscosity
(one with a higher value) may be better suited if the vehicle is oper-
ated at high speeds, or under extreme load conditions.
How to read oil container labels:
Either or both API registered marks are added to some oil containers to
help you select the oil you should use.
API Service Symbol
Top portion: “API SERVICE SN”
means the oil quality designation
by American Petroleum Institute
(API).
Center portion: “SAE 0W-20”
means the SAE viscosity grade.
Lower portion: “Resource-
Conserving” means that the oil
has fuel-saving and environmen-
tal protection capabilities.
ILSAC Certification Mark
The International Lubricant Specification Advisory Committee (ILSAC)
Certification Mark is displayed on the front of the container.
1
2

567
9 9-1. Specifications
Vehicle specifications
IS300h_EE(OM53B95E)
Spark plug
Cooling system
Gasoline engine
Power control unit
Left-hand drive
vehiclesRight-hand drive
vehicles
Capacity8.2 L (8.7 qt.,
7.2 Imp. qt.)2.0 L (2.1 qt.,
1.8 Imp. qt.)2.2 L (2.3 qt.,
1.9 Imp. qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system
Make DENSO FK20HBR8
Gap 0.8 mm (0.031 in.)
NOTICE
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

573
9 9-1. Specifications
Vehicle specifications
IS300h_EE(OM53B95E)
Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that only
accommodates the special nozzle on unleaded fuel pumps.
If your engine knocks
Consult any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
You may occasionally notice light knocking for a short time while accelerating
or driving uphill. This is normal and there is no need for concern.
Fuel information
EU area:
Your vehicle must use only unleaded gasoline conforming to European
standard EN228.
For optimum engine performance, select unleaded gasoline with a
Research Octane Number of 95 or higher.
Except EU area:
Your vehicle must use only unleaded gasoline.
For optimum engine performance, select unleaded gasoline with a
Research Octane Number of 95 or higher.

5749-1. Specifications
IS300h_EE(OM53B95E)
NOTICE
Notice on fuel quality
Do not use improper fuels. If improper fuels are used, the engine will be dam-
aged.
Do not use leaded gasoline.
Leaded gasoline will cause the three-way catalytic converter to lose its effec-
tiveness and the emission control system to function improperly.
Gasoline engine (EU area): Bioethanol fuel sold under names such as “E50”
or “E85” and fuel containing a large amount of ethanol should not be used.
The use of these fuels will damage the vehicle’s fuel system. In case of any
doubt, ask any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Gasoline engine (except EU area): Bioethanol fuel sold under names such as
“E50” or “E85” and fuel containing a large amount of ethanol should not be
used. Your vehicle can use gasoline mixed with 10% max ethanol. The use of
fuel with more than 10% ethanol content (E10) will damage the vehicle’s fuel
system. You must ensure that refueling is carried out only from a source
where fuel specification and quality can be guaranteed. In case of any doubt,
ask any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.

595Alphabetical index
IS300h_EE(OM53B95E)
Clock .........................................420
Coat hooks .................................424
Condenser .................................446
Console box ...............................414
Coolant ......................................444
Capacity ................................567
Checking ...............................444
Preparing and checking
before winter ......................311
Cooling system ..........................444
Engine overheating ...............556
Hybrid system overheating ...556
Cruise control
Cruise control .......................245
Dynamic radar cruise control .....
249
Cup holders ...............................415
Current fuel consumption ..........117
Curtain shield airbags .................43
Customizable features ...............576DAB (Digital Audio Broadcast)339
Daytime running light system . 227
Defogger
Front windshield .................. 404
Outside rear view mirrors .... 404
Rear window ........................ 404
Differential ............................... 569
Digital Audio Broadcast (DAB)339
Dimensions ............................... 562
Display
Drive information ................ 117
Dynamic radar cruise control ....
249
LDA (Lane Departure Alert) 265
Multi-information display.... 116
Warning message................. 514
Distance .................................... 118
Do-it-yourself maintenance ...... 435
Door courtesy lights
Location ............................... 411
Wattage ................................ 572
Door lock
Doors ................................... 136
Smart entry & start system .. 149
Wireless remote control ....... 130D

597Alphabetical index
IS300h_EE(OM53B95E)
If you have a flat tire ....531, 545
If you think something
is wrong ..............................506
If your vehicle becomes stuck ....
560
If your vehicle has to be
stopped in an emergency ....499
If your vehicle needs to
be towed .............................500
If your vehicle overheats ......556
Emergency brake signal ............294
Emergency flashers ...................498
Emergency tire puncture
repair kit ..................................531
Energy monitor..........................122
Engine .......................................564
Accessory mode....................210
Compartment ........................439
Engine switch .......................209
Hood .....................................437
How to start the hybrid
system.................................209
Identification number ...........563
Ignition switch
(power switch)....................209
Overheating ..........................556
Power switch ........................209Engine coolant .......................... 444
Capacity ............................... 567
Checking .............................. 444
Preparing and checking
before winter ..................... 311
Engine coolant temperature
gauge ...................................... 110
Engine oil ................................. 440
Capacity ............................... 565
Checking .............................. 440
Preparing and checking
before winter ..................... 311
Engine switch ........................... 209
EPS (Electric Power Steering) . 293
Function ............................... 293
Warning light ....................... 508
EV drive mode.......................... 214
EV indicator ............................. 118

600Alphabetical index
IS300h_EE(OM53B95E)
Hooks
Cargo hooks ..........................417
Coat hooks ............................424
Retaining hooks (floor mat) ...34
Horn...........................................177
Hybrid battery (traction battery) .83
Hybrid battery (traction battery)
air vents .....................................84
Hybrid system .............................79
Emergency shut off system ....84
Energy monitor/
consumption screen ............122
EV drive mode......................214
High voltage components .......83
Hybrid System Indicator ......114
Hybrid system precautions .....83
Hybrid vehicle driving tips ...309
If the hybrid system
will not start .......................546
Overheating ..........................556
Power (ignition) switch ........209
Starting the hybrid system ....209
Hybrid System Indicator ...........114
Hybrid transmission ..................216
If the shift lever cannot be
shifted from P .....................548
Paddle shift switches ............218
S mode ..................................219Identification
Engine .................................. 563
Vehicle ................................. 563
Ignition switch (power switch) . 209
Illuminated entry system .......... 412
Immobilizer system .................... 90
Indicators .................................. 106
Initialization
Moon roof ............................ 189
Multi-information display.... 118
Power windows.................... 185
Tire pressure warning
system................................ 451
Inside door handle lights .......... 411
Inside rear view mirror ............. 178
Instrument panel light control .. 113
Interior lights ............................ 411
Wattage ................................ 572
Intrusion sensor and tilt sensor ... 99
ISOFIX rigid anchors ................. 70I

603Alphabetical index
IS300h_EE(OM53B95E)
Moon roof..................................187
Door lock linked moon roof
operation.............................188
Jam protection function ........188
Operation ..............................187
MP3 disc....................................341
Multi-information display .........116
Audio system-linked.............116
Drive information .................117
Dynamic radar cruise
control ................................249
Energy monitor .....................123
LDA (Lane Departure Alert) 265
Navigation system-linked .....116
Settings .................................118
Switching the display ...........117
Warning message..................514
Navigation system
*
Needle .......................................118Odometer .................................. 110
Oil
Differential oil ..................... 569
Engine oil............................. 565
Opener
Hood .................................... 437
Trunk ................................... 143
Outer foot lights
Location ............................... 411
Replacing light bulbs ........... 489
Wattage ................................ 572
Outside rear view mirrors ......... 180
Adjusting and folding .......... 180
BSM (Blind Sport Monitor) 309
Linked mirror function
when reversing .................. 182
Mirror position memory ...... 168
Outside rear view mirror
defoggers .......................... 404
Outside temperature ................. 110
Overheating .............................. 556
N
O
*: For vehicles with a navigation system, refer to the
“Navigation System Owner’s Manual”.