Page 502 of 681
502 7-3. Do-it-yourself maintenance
NX300h_U_OM78007UEngine compartment
■
12-volt battery
P. 5 1 2Fuse box ( P. 5 3 4 )
Engine coolant reservoir
( P. 5 0 8 )
Engine oil filler cap ( P. 505)
Power control unit coolant reservoir
( P. 5 0 8 )
Brake fluid reservoir ( P. 5 1 0 ) Radiator ( P. 5 0 9 )
Condenser ( P. 5 0 9 )
Electric cooling fans
Engine oil level dipstick
( P. 5 0 4 )
Wa s h e r f l u i d t a n k ( P. 5 1 1 )1
2
3
4
5 6
7
8
9
10
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504 7-3. Do-it-yourself maintenance
NX300h_U_OM78007U With the engine at operating temperatur e and turned off, check the oil level on
the dipstick. ■
Checking the engine oil
Park the vehicle on level ground. After warming up the engine and turning
off the hybrid system, wait more than 5 minutes for the oil to drain back into
the bottom of the engine.
Holding a rag under the end, pull
the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully with its
protruding areas ( in the illus-
tration) pointing towards engine.
Holding a rag under the end, pull the dipstick out and check the oil level.
Low
Normal
Excessive
Wipe the dipstick and reinsert it fully.Engine oil 1
2
3
4
1
5
Measuring side1
2
3
6
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5057-3. Do-it-yourself maintenance
7
Maintenance and care
NX300h_U_OM78007U ■
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 coun terclockwise.
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 consum ed while driving. In th e following situations,
oil consumption may increase, and engine o il 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 de celerating frequently●
When leaving the engi ne idling for a long time, or when driving frequently through
heavy trafficEngine oil selection P. 6 1 2
Oil quantity (Low Full) 1.6 qt. (1.5 L, 1.3 Imp.qt.)
Items Clean funnel1
2
3
Page 507 of 681

5077-3. Do-it-yourself maintenance
7
Maintenance and care
NX300h_U_OM78007U WA R N I N G ■
Used engine oil ●
Used engine oil contains potentially harm ful contaminants which may cause skin dis-
orders such as inflammation and skin canc er, so care should be taken to avoid pro-
longed and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water. ●
Dispose of used oil and filters only in a safe and acceptable manner. Do not dispose of
used oil and filters in household trash, in sewers or onto the ground. Call your Lexus
dealer, service station or auto parts store for information concerning recycling or dis-
posal. ●
Do not leave used engine oil within the reac h of children.
NOTICE ■
To prevent serious engine damage
Check the oil level on a regular basis. ■
When replacing the engine oil ●
Be careful not to spill engine oil on the vehicle components. ●
Avoid overfilling, or the engine could be damaged.●
Check the oil level on the dipstick every time you refill the vehicle. ●
Be sure the engine oil filler cap is properly tightened.
Page 611 of 681
6119-1. Specifications
9
Vehicle specifications
NX300h_U_OM78007U * : 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.Hybrid battery (traction battery) Ty p e Nickel-Metal hydride battery
Vo l t a g e 7. 2 V/m o d u l e
Capacity 6.5 Ah (3HR)
Quantity 34 modules
Overall voltage 244.8 V
Lubrication system Oil capacity
(Drain and refill — reference
* )
With filter
Without filter 4.6 qt. (4.4 L, 3.9 Imp.qt.)
4.2 qt. (4.0 L, 3.5 Imp.qt.)