2017 Lexus IS300h Owner's Manual

649
9
9-1. Specifications
Vehicle specifications
IS300h_EE(OM53D89E)
Cooling system
Engine
Power control unit
Left-hand drive
vehicles
Right-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-silicate, non-amine, non-nitrite, and non-borate coolant with long-
life hybrid organic acid technology
Do not use plain water alone.
Ignition system (spark plug)
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.

6509-1. Specifications
IS300h_EE(OM53D89E)
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact any authorized Lexus retailer or Lexus autho-
rized repairer, or an y reliable repairer.
Electrical system
12-volt battery
Open voltage at 20C
(68 F):
12.0 V or higher
(Check the voltage 20 minutes after the hybrid system and all lights are turned off.)
If the voltage is lower than the standard value, charge
the battery.
Charging rates4 A — 5 A
Hybrid transmission
Fluid capacity*3.8 L (4.0 qt., 3.3 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid ot her than “Toyota Genuine ATF WS” may damage the hybrid
transmission of your vehicle.

651
9
9-1. Specifications
Vehicle specifications
IS300h_EE(OM53D89E)
Your Lexus vehicle is filled wi th “Toyota Genuine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differenti al Gear Oil” or an equivalent of match- ing quality to satisfy the abov e specification. Please contact any authorized Lexus retailer
or Lexus authorized repairer, or any reliable repairer for further details.
*1: Minimum pedal clearance when depressed with a force of 500 N (51.0 kgf, 112.4 lbf)
while the hybrid system is operating.
*2: Parking brake pedal travel when depressed with a force of 300 N (30.6 kgf, 67.4 lbf)
Differential
Oil capacity1.35 L (1.42 qt., 1.19 Imp. qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
Brakes
Pedal clearance*1117 mm (4.6 in.) Min.
Pedal free play1.0 — 6.0 mm (0.04 — 0.24 in.)
Parking brake pedal travel*27 - 10 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3, or
SAE J1704 or FMVSS No. 116 DOT 4
Steering
Free playLess than 30 mm (1.2 in.)

6529-1. Specifications
IS300h_EE(OM53D89E)
16-inch tires
*1: For driving at vehicle speeds of more than 190 km/h (118 mph)
*2: For driving at vehicle speeds of 190 km/h (118 mph) or less
*3: For optimizing fuel economy, ECO tire pressure is recommended. Tire pressure
affects traveling comfort, road noise and steering characteristics.
Tires and wheels
Tire size205/55R16 91W
Tire inflation
pressure
(Recommended cold tire inflation
pressure)
Normal pressure260 kPa (2.6 kgf/cm2 or bar, 38 psi)*1
250 kPa (2.5 kgf/cm2 o r ba r, 36 p si)*2
ECO tire pressure*3270 kPa (2.7 kgf/cm2 or bar, 39 psi)
Wheel size16  7J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)

653
9
9-1. Specifications
Vehicle specifications
IS300h_EE(OM53D89E)
17-inch tires
18-inch tires
■When towing a trailer (vehicles with a towing package)
Add 20.0 kPa (0.2 kgf/cm2 o r b ar, 3 psi) to th e rec omm en ded tire inflation pressure, and drive at speeds below 100 km/h (62 mph).
Tire size225/45R17 91W, 225/45RF17 91W
Tire inflation
pressure
(Recommended cold tire inflation
pressure)
Vehicle speed
Front wheel
kPa (kgf/cm2 or
bar, psi)
Rear wheel
kPa (kgf/cm2 or
bar, psi)
More than 190 km/h (118 mph)290 (2.9, 42)290 (2.9, 42)
190 km/h (118 mph) or
less250 (2.5, 36)250 (2.5, 36)
Wheel size17  7 1/2J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Tire size225/40R18 88Y, 255/35R18 90Y
Tire inflation pressure
(Recommended
cold tire inflation pressure)
250 kPa (2.5 kgf/cm2 or bar, 36 psi)
Wheel size18  8J (225/40R18), 18  8 1/2J (255/35R18)
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)

6549-1. Specifications
IS300h_EE(OM53D89E)
Light bulbs*
Light bulbsWType
ExteriorFront turn signal lights (bulb type)21A
Outer foot lights5B
Interior
Door courtesy lights5B
Vanity lights8B
Interior light8B
Personal lights8B
Footwell lights3.8B
Trunk light*25B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
*: Light bulbs not listed in this table are LED bulbs.

655
9
9-1. Specifications
Vehicle specifications
IS300h_EE(OM53D89E)
■Use of ethanol blended gaso line in a gasoline engine
Lexus allows the use of ethanol blended gasoli ne where the ethanol content is up to 10%.
Make sure that the ethanol blended gasoline to be used has a Research Octane Number that follows the above.
■If your engine knocks
●Consult any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
●You may occasionally notice lig ht knocking for a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
Fuel information
EU area:
You must only use unleaded gasoli ne conforming to European standard
EN228.
Select unleaded gasoline with a Rese arch Octane Number of 95 or higher
for optimum engine performance.
Except EU area:
You must only use unleaded gasoline.
Select unleaded gasoline with a Rese arch Octane Number of 95 or higher
for optimum engine performance.

6569-1. Specifications
IS300h_EE(OM53D89E)
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fu els are used, the engine will be damaged.
●Do not use leaded gasoline.
Leaded gasoline will cause the three-way catalytic converter to lose its effectiveness and the emission control system to function improperly.
●EU area: Bioethanol fuel sold under names such as “E50” or “E85” and fuel contain-
ing a large amount of ethano l 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 retailer or
Lexus authorized repairer, or any reliable repairer.
●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 gaso-
line 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 specific ation and quality can be guaranteed. In case
of any doubt, ask any authorized Lexus retailer or Lexus authorized repairer, or any
reliable repairer.
●Do not use the methanol blended gasoline such as M15, M85, M100. The use of gas-
oline containing methanol may ca use engine damage or failure.