Imp. qt. LEXUS RX450H 2016 Owners Manual

4776-3. Do-it-yourself maintenance
6
Maintenance and care
RX450h_U_OM0E013U
■Adding engine oil
If the oil level is below or near the
low level mark, add engine oil of the
same type as that already in the
engine.
Make sure to check the oil type and prepare the items needed before adding
oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
■Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following situations,
oil consumption may increase, and engine oil may need to be refilled in between oil
maintenance intervals.
●When the engine is new, for example directly after purchasing the vehicle or after
replacing the engine
●If low quality oil or oil of an inappropriate viscosity is used
●When driving at high engine speeds or with a heavy load, when towing, or when driving
while accelerating or decelerating frequently
●When leaving the engine idling for a long time, or when driving frequently through
heavy traffic
Engine oil selection P. 586
Oil quantity (Low  Full)1.9 qt. (1.8 L, 1.6 Imp. qt.)
ItemsClean funnel
1
2
3

5858-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U
*: The engine oil capacity is a reference quantity to be used when changing the engineoil. Warm up the engine and turn off the hybrid system, wait more than 5 minutes, and
check the oil level on the dipstick.
Hybrid battery (traction battery)
TypeNickel-Metal hydride battery
Voltage9.6 V/module
Capacity6.5 Ah (3HR)
Quantity30 modules
Overall voltage288 V
Lubrication system
Oil capacity
(Drain and refill — reference
*)
With filterVehicles with towing package
5.8 qt. (5.5 L, 4.8 Imp. qt.)
Vehicles without towing package
5.7 qt. (5.4 L, 4.8 Imp. qt.)
Without filter5.6 qt. (5.3 L, 4.7 Imp. qt.)

5878-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U
*: The coolant capacity is a reference quantity. If replacement is necessary, contact your Lexus dealer.
Cooling system
Capacity*
Gasoline engine
10.7 qt. (10.1 L, 8.9 Imp. qt.)
Power control unit
2.0 qt. (1.9 L, 1.7 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)
MakeDENSO FK20HBR8
Gap0.03 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
12-volt battery
Open voltage at 68F (20 C):
12.6 V or higher: Fully charged
12.2 — 12.4 V: Half charged
12.0 V or lower: Discharged
(Voltage is checked 20 minutes after the hybrid
system and all lights are turned off.)
Charging rates5 A max.

5888-1. Specifications
RX450h_U_OM0E013U
*: The fluid capacity is a reference quantity. If replacement is necessary, contact your Lexus dealer.
*: The fluid capacity is a reference quantity. If replacement is necessary, contact your Lexus dealer.
*: Minimum pedal clearance when depressed wi th a force of 110 lbf (490 N, 50.0 kgf)
while the hybrid system is operating.
Hybrid transmission
Fluid capacity*5.1 qt. (4.8 L, 4.2 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid ot her than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.
Rear differential (Rear electric motor) (AWD models)
Fluid capacity*1.9 qt. (1.8 L, 1.6 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid ot her than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.
Brakes
Pedal clearance*3.7 in. (95 mm) Min.
Brake pad wear limit0.04 in. (1.0 mm)
Pedal free play0.04 — 0.24 in. (1.0 — 6.0 mm)
Fluid typeFMVSS No. 116 DOT 3 or SAE J1703

660
RX450h_U_OM0E013UGAS STATION INFORMATION
Auxiliary catch leverFuel filler door
P. 473 P. 269
Hood lock release leverFuel filler door openerTire inflation pressure
P. 473 P. 269P. 589
Fuel tank capacity
(Reference)17.2 gal. (65 L, 14.3 Imp. gal.)
Fuel type
Unleaded gasoline only P. 584
Cold tire inflation
pressure P. 589
Engine oil capacity
(Drain and refill —
reference)With filter
Without filter 5.8 qt. (5.5 L, 4.8 Imp. qt.)
5.6 qt. (5.3 L, 4.7 Imp. qt.)
Engine oil type“Toyota Genuine Motor
Oil” or equivalent
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20 P. 586