2015 LEXUS RX450h Owners Manual

8006-1. Specifications
■ Engine number
The engine number is stamped on
the engine block as shown.
Engine
FuelModel 2GR-FXE
Ty p e 6-cylinder V type, 4-cycle, gasoline
Bore and stroke 3.70  3.27 in. (94.0  83.0 mm)
Displacement 210.9 cu.in. (3456 cm 3
)
Drive belt tension Automatic adjustment
Fuel type Unleaded gasoline only
Octane rating 91 (Research octane number 96) or higher
Fuel tank capacity
(Reference) 17.1 gal. (65 L, 14.2 Imp. gal.)

8016-1. Specifications
6
Vehicle specifications Electric motor (Traction motor)
Front
Rear (AWD models)
Hybrid battery (Traction battery) Ty p e Permanent magnet synchronous motor
Maximum output 123 kW
Maximum torque 247 ft•lbf (335 N•m, 34.2 kgf•m)
Ty p e Permanent magnet synchronous motor
Maximum output 50 kW
Maximum torque 103 ft•lbf (139 N•m, 14.2 kgf•m)
Ty p e Nickel-metal hydride battery
Vo l t a g e 9.6 V/m o d u l e
Capacity 6.5 Ah (3HR)
Quantity 30 modules
Overall voltage 288 V

8026-1. Specifications
Lubrication system
*: 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. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the follow-
ing grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oilOil capacity
(Drain and refill 
reference*)
With filter 6.4 qt. (6.1 L, 5.4 Imp. qt.)
Without filter 6.0 qt. (5.7 L, 5.0 Imp. qt.)

8036-1. Specifications
6
Vehicle specifications Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced with
SAE 0W-20 at the next oil
change.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 easier starting of the engine in cold weather.
• The 20 in 0W-20 indicates the vi scosity characteristic of the oil
when the oil is at high temperature. An oil with a higher viscosity
(one with a higher valu e) may be better suited if the vehicle is oper-
ated at high speeds, or under extreme load conditions.
How to read oil container label:
The International Lubricant Specification Advisory Committee
(ILSAC) Certification Mark is adde d to some oil cont ainers to help
you select the oil you should use. Outside temperature

8046-1. Specifications
Cooling system
* : With towing package
Ignition systemCapacity
Gasoline engine
Power control unit 12.0 qt. (11.4 L, 10.0 Imp. qt.)
12.4 qt. (11.7 L, 10.3 Imp. qt.)*
1.9 qt. (1.8 L, 1.6 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 cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
Spark plug
Make
Gap DENSO FK20HR11
0.043 in. (1.1 mm)
NOTICE■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

8056-1. Specifications
6
Vehicle specifications Electrical system
Hybrid Transaxle
* : The fluid capacity is a reference quantity. If replacement is necessary, contact
your Lexus dealer.12-volt battery
Open voltage* at
68  F (20  C): 12.6  
12.8 V Fully charged
12.2  
12.4 V Half charged
11.8  
12.0 V Discharged
(*: Voltage checked 20 minutes after the hybrid sys-
tem and all the lights are turned off)
Charging rates 5 A max.
Fluid capacity*
Front 4.9 qt. (4.6 L, 4.0 Imp. qt.)
Rear (AWD models) 1.9 qt. (1.8 L, 1.6 Imp. qt.)
Fluid type Toyota Genuine ATF WS
NOTICE■
Hybrid transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ultimately dam-
age the hybrid transmission of your vehicle.

8066-1. Specifications
Brakes
* 1
: Minimum pedal clearance when depressed with a force of 112 lbf (500 N, 51
kgf) while the hybrid system is operating
* 2
: Parking brake pedal travel when depressed with a force of 67.5 lbf (300 N, 31
kgf)
SteeringPe d a l c l e a r a n c e
* 1
4.1 in. (104 mm) Min.
Pedal free play 0.04 
0.08 in. (1 
2 mm)
Brake pad wear limit 0.04 in. (1.0 mm)
Parking brake lining wear limit 0.04 in. (1.0 mm)
Parking brake pedal travel
* 2
7 
10 clicks
Fluid type SAE J1703 or FMVSS No.116 DOT 3
Free play Less than 1.2 in. (30 mm)

8076-1. Specifications
6
Vehicle specifications Tires and wheels
Type A
Type BTi r e s i z e P235/60R18 102V, T165/90D18 107M (spare)
Tire inflation pressure
(recommended cold tire
inflation pressure) Front: 33 psi (230 kPa, 2.3 kgf/cm 2
or bar)
Rear: 33 psi (230 kPa, 2.3 kgf/cm 2
or bar)
Spare: 60 psi (420 kPa, 4.2 kgf/cm 2
or bar)
Wheel size 18  7 1 /2J, 18  4T (spare)
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)
Ti r e s i z e P235/60R18 102V
Tire inflation pressure
(recommended cold tire
inflation pressure) Front: 33 psi (230 kPa, 2.3 kgf/cm 2
or bar)
Rear: 33 psi (230 kPa, 2.3 kgf/cm 2
or bar)
Spare: 33 psi (230 kPa, 2.3 kgf/cm 2
or bar)
Wheel size 18  7 1 /2J
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)