Page 611 of 680

6119-1. Specifications
9
Vehicle specifications
NX300h_OM_USA_OM78082U
*: The coolant capacity is the quantity of reference. If replacement is necessary, contact your Lexus dealer.
Cooling system
Capacity*
Gasoline
engine
Vehicles with towing package
7.7 qt. (7.3 L, 6.4 Imp.qt.)
Vehicles without towing package
7.1 qt. (6.7 L, 5.9 Imp.qt.)
Po w e r
control unit3.3 qt. (3.1 L, 2.7 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 FK16HR-A8
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 68F (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.
Page 615 of 680
6159-1. Specifications
9
Vehicle specifications
NX300h_OM_USA_OM78082U
Light bulbs
Light bulbsBulb No.WTy p e
Exterior
HeadlightsHigh beam (halogen bulbs)
*900560A
Front side marker lights*W5W5C
Front turn signal lights (bulb
type)*585
(WY21W)21B
Rear turn signal lights585
(WY21W)21B
Back-up lights921
(W16W) 16C
InteriorVanity lights8C
Luggage compartment light5C
A: HB3 halogen bulbs
B: Wedge base bulbs (amber) C: Wedge base bulbs (clear)
*: If equipped
Page 617 of 680

6179-1. Specifications
9
Vehicle specifications
NX300h_OM_USA_OM78082U
■Recommendation of the use of low emissions gasoline
Gasolines containing oxygenates such as ethers and ethanol, as well as reformulated
gasolines, are available in some cities. These fuels are typically acceptable for use, pro-
viding they meet other fuel requirements.
Lexus recommends these fuels, since the fo rmulations allow for reduced vehicle emis-
sions.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure th at it has an octane rating no lower than 87.
●Lexus does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT
(Methylcyclopentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasolin e that contains MMT. If fuel containing
MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instru ment cluster may come on. If this happens,
contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking fo r a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
●Use only gasoline containing up to 15% etha-
nol.
DO NOT use any flex-fuel or gasoline that
could contain more than 15% ethanol, includ-
ing from any pump labeled E30, E50, E85
(which are only some examples of fuel con-
taining more than 15% ethanol).DO NOT use gasoline
containing more than
15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)
Page 628 of 680

6289-1. Specifications
NX300h_OM_USA_OM78082U
Intended outboard sidewall
(a) The sidewall that contains a whitewall, bears white lettering, or bears manu facturer, brand, and/or
model name molding that is higher or deeper than
the same molding on the other sidewall of the tire, or
(b) The outward facing sidewall of an asymmetrical tire
that has a particular side that must always face out-
ward when mounted on a vehicle
Light truck (LT) tireA tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipurpose
passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a given
inflation pressure
Maximum load ratingThe load rating for a tire at the maximum permissible
inflation pressure for that tire
Maximum permissible infla-
tion pressureThe maximum cold inflation pressure to which a tire may
be inflated
Measuring rimThe rim on which a tire is fitted for physical dimension
requirements
Open spliceAny parting at any junction of tread, sidewall, or inner-
liner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of the side-
walls of an inflated tire, incl uding elevations due to label-
ing, decorations, or pr otective bands or ribs
Passenger car tireA tire intended for use on passenger cars, multipurpose
passenger vehicles, and trucks, that have a gross vehicle
weight rating (GVWR) of 10,000 lb. or less.
PlyA layer of rubber-coated parallel cords
Ply separationA parting of rubber compound between adjacent plies
Tire related termMeaning
Page 634 of 680
6349-2. Customization
NX300h_OM_USA_OM78082U
■Wireless remote control ( P. 1 2 4 )
■Automatic light control system ( P. 2 1 9 )
■Lights (P. 2 1 9 )
FunctionDefault
settingCustomized setting
Wireless remote control OnOff – – O –
Unlocking operation Driver’s door
unlocked in first
step, all doors
unlocked in
second stepAll doors
unlocked in first
step
O–O–
Panic function OnOff – – O –
The function that validates the switch of the wireless
remote control when locking
the door ( P. 1 2 9 ) When locking
the door
When unlock-
ing the door
––O–
1234
FunctionDefault
settingCustomized setting
Light sensor sensitivityStandard-2 to 2O–O–
Adjust the time elapsed
before the headlights auto-
matically turn off 30 seconds
Off
O–O–
60 seconds
90 seconds
1234
FunctionDefault settingCustomized setting
Daytime Running Lights
(Daytime running lights can
be disabled)OnOffO–O–
1234
Page 635 of 680
6359-2. Customization
9
Vehicle specifications
NX300h_OM_USA_OM78082U
■Illumination (P. 443)
FunctionDefault
settingCustomized setting
Time elapsed before the inte-
rior lights turn off 15 secondsOff
O–O–
7. 5 s e c o n d s
30 seconds
Time elapsed before the exte-
rior lights turn off15 seconds
Off
O–O–7. 5 s e c o n d s
30 seconds
Operation after the power
switch is turned offOnOff––O–
Operation when the doors
are unlockedOnOff––O–
Operation when you
approach the vehicle with the
electronic key on your person
OnOff––O–
Footwell lightingOnOff––O–
Fading out of the outer foot
lights when they turn offLongShort––O–
1234
Page 658 of 680
658What to do if... (Troubleshooting)
NX300h_OM_USA_OM78082U
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 5 6 7 )
●The parking brake indicator is on
Is the parking brake released? ( P. 2 1 3 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 5 6 5 , 5 7 2 )
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 8 8 )
To stop the alarm, turn the power switch to ON mode or start the hybrid system.
●Is the message displayed on the multi-information display?
Check the message on the multi-information display. ( P. 5 7 2 )
●When a warning light turns on or a warning message is displayed, refer to
P. 5 6 5 , 5 7 2 . A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
Page 660 of 680

660Alphabetical index
NX300h_OM_USA_OM78082U
Alphabetical index
A/C ............................................................ 430Air conditioning filter....................... 530
Automatic air conditioning system ................................................. 430
Micro dust and pollen filter ...........436
ABS (Anti-lock Brake System).......305 Function ................................................. 305
Warning light ...................................... 566
Active Sound Control (ASC) .......... 218
Air conditioning filter ..........................530
Air conditioning system ..................... 430 Air conditioning filter....................... 530
Automatic air conditioning system ................................................. 430
Micro dust and pollen filter ...........436
S-FLOW mode .................................. 432
Airbags ........................................................ 40 Airbag operating conditions ...........48
Airbag precautions for your child .......................................................... 43
Airbag warning light ........................ 566
Correct driving posture ....................30
Curtain shield airbag operating conditions........................48
Curtain shield airbag precautions ........................................... 46
Front passenger occupant classification system ......................... 53
General airbag precautions............ 43 Locations of airbags............................ 40
Modification and disposal of
airbags .....................................................47
Seat cushion airbag ............................. 40
Side airbag operating conditions ............................................. 48
Side airbag precautions .................... 45
Side and curtain shield airbags operating conditions ....................... 48
Side and curtain shield airbags precautions .......................................... 46
SRS airbag instructions for Canadian owners ................... 647
SRS airbags ............................................. 40
Alarm ........................................................... 88 Alarm ..........................................................88
Warning buzzer.................................569
Anchor brackets................................ 71, 73
Antenna Radio ........................................................ 364
Smart access system with push-button start....................140
Anti-lock brake system (ABS)........ 305 Function ..................................................305
Warning light .......................................566
Approach warning ................... 245, 259
Armrest .................................................... 465
ASC (Active Sound Control) ........... 218
Assist grips .............................................. 465
A