4076-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53B95E)
Registering air conditioning settings to electronic keys (vehicles with driving
position memory)
Unlocking the vehicle using an electronic key and turning the power switch to
ON mode will recall that key’s registered air conditioning settings.
When the power switch is turned off, the current air conditioning settings will
automatically be registered to the electronic key that was used to unlock the
vehicle.
The system may not operate correctly if more than one electronic key is in the
vicinity or if the smart entry & start system is used to unlock a passenger door.
The doors that can recall the air conditioning setting when unlocked using the
smart entry & start system can be changed.* For details, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
*: The doors that can recall the driving position memory are changed at the same
time.
Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the
ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after is pressed or “AUTO” is selected.
Fogging up of the windows
The windows will easily fog up when the humidity in the vehicle is high. Turning
(“A/C”) on will dehumidify the air from the outlets and defog the wind-
shield effectively.
If you turn (“A/C”) off, the windows may fog up more easily.
The windows may fog up if the recirculated air mode is used.
Outside/recirculated air mode
When driving on dusty roads such as tunnels or in heavy traffic, set the outside/
recirculated air mode button to the recirculated air mode. This is effective in
preventing outside air from entering the vehicle interior. During cooling opera-
tion, setting the recirculated air mode will also cool the vehicle interior effec-
tively.
Outside/recirculated air mode may automatically switch depending on the tem-
perature setting or the inside temperature.
Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning system is controlled as follows to priori-
tize fuel efficiency:
Engine speed and compressor operation controlled to restrict heating/cooling
capacity
Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations:
Adjust the fan speed
Turn off Eco drive mode
4667-3. Do-it-yourself maintenance
IS300h_EE(OM53B95E)
Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
Reduced fuel efficiency
Reduced driving comfort and tire life
Reduced safety
Damage to the drivetrain
If a tire needs frequent inflating, have it checked by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven for
more than 1.5 km or 1 mile, you will get an accurate cold tire inflation pressure
reading.
Always use a tire pressure gauge.
The appearance of the tire can be misleading. In addition, tire inflation pressure
that is even just a few pounds off can affect ride quality and handling.
Do not reduce tire inflation pressure after driving. It is normal for tire inflation
pressure to be higher after driving.
Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is balanced.
Tire inflation pressure
Make sure to maintain proper tire inflation pressure. Tire inflation pres-
sure should be checked at least once per month. However, Lexus recom-
mends that tire inflation pressure be checked once every two weeks.
(P. 570)
562
IS300h_EE(OM53B95E)9-1. Specifications
*1: Unladen vehicle
*2: Vehicles with 255/35R18 tires
*3: AVE30L-AEXEHW and AVE30R-AEXEHW models
*4: AVE30L-AEXLHW and AVE30R-AEXLHW models
The model code is indicated on the manufacturer’s label. (P. 563)
*5: Vehicles with a towing package
Maintenance data (fuel, oil level, etc.)
Dimensions and weights
Overall length 4665 mm (183.7 in.)
Overall width 1810 mm (71.3 in.)
Overall height*11430 mm (56.3 in.)
Wheelbase 2800 mm (110.2 in.)
Tread*1Front 1535 mm (60.4 in.)
Rear1550 mm (61.0 in.)
1540 mm (60.6 in.)*2
Gross vehicle mass*52130 kg (4696 lb.)*3
2145 kg (4729 lb.)*4
Maximum permis-
sible axle capac-
ity
*5
Front 1090 kg (2403 lb.)
Rear 1200 kg (2646 lb.)
Drawbar load*575 kg (165 lb.)
Towing capacity*5With brake 750 kg (1653 lb.)
Without brake 750 kg (1653 lb.)
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
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
599Alphabetical index
IS300h_EE(OM53B95E)
Fuel ............................................241
Capacity ................................564
Fuel gauge ............................110
Information ...........................573
Refueling ..............................241
Type ..............................241, 564
Warning light........................509
Fuel consumption ......................125
Average fuel economy..........117
Current fuel consumption .....117
Fuel filler door...........................241
If the fuel filler door
cannot be opened................243
Refueling ..............................241
Fuel gauge .................................110
Fuses ..........................................475
Gauges .......................................110
Glove box ..................................414
Glove box light ..........................414Hands-free system
(for cellular phone) ................ 367
Head restraints .......................... 173
Headlight cleaner...................... 235
Headlights................................. 226
Automatic High Beam
system................................ 229
Discharge headlights
precautions ........................ 494
Follow me home system ...... 227
Light switch ......................... 226
Replacing light bulbs ........... 493
Wattage ................................ 572
Heaters ...................................... 398
Air conditioning system....... 398
Heated steering wheel.......... 409
Outside rear view mirrors .... 404
Seat heaters .......................... 410
Hill-start assist control.............. 293
High-voltage components........... 83
Hood ......................................... 437
Open..................................... 437
Pop Up Hood ......................... 56
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H