2016 LEXUS NX300H engine coolant

6028-2. Steps to take in an emergency
NX300h_OM_USA_OM78082U
Start the hybrid system and check if “Hybrid System Overheated” is shown
on the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer.
WA R N I N G
■To prevent an accident or injury when in specting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the h ood, do not open the hood until the steam
has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned off, check that the “READY” indicator is off.
When the hybrid system is operating, the gasoline engine may automatically start, or
the cooling fan may suddenly operate even if the gasoline engine stops. Do not touch
or approach rotating parts such as the fa n, which may lead to fingers or clothing
(especially a tie, a scarf or a muffler) ge tting caught, resulting in serious injury.
●Do not loosen the coolant reservoir cap while the hybrid system and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently. Adding cool
coolant to a hot hybrid system too quickly can cause damage to the hybrid system.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.
6

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 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.

6259-1. Specifications
9
Vehicle specifications
NX300h_OM_USA_OM78082U
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more than 1
mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in excess of those standard items
which may be replaced) of transmission, power steer-
ing, power brakes, power wi ndows, power seats, radio
and heater, to the extent that these items are available as
factory-installed equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the numb er of occupants specified
in the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in the
third column of Table 1* below

665Alphabetical index
NX300h_OM_USA_OM78082U
If you have a flat tire ..........................575
If you lose your keys ................ 120, 122
If you think something is wrong .................................................. 564
If your vehicle becomes stuck ..................................................... 603
If your vehicle has to be stopped in an
emergency.........................................557
If your vehicle needs to be towed................................................... 558
If your vehicle overheats ............... 599
Energy monitor ..........................................111
Engine Accessory mode................................202
Compartment ..................................... 502
Engine switch ........................................ 201
Hood ....................................................... 500
How to start the hybrid system ................................................... 201
Identification number ...................... 608
If your vehicle has to be stopped in an emergency ..........557
Ignition switch (power switch).................................. 201
Overheating ........................................ 599
Power switch......................................... 201 Engine compartment cover............. 503
Engine coolant
Capacity .................................................... 611
Checking .............................................. 508
Preparing and checking before winter .................................... 326
Warning light .......................................565
Engine coolant temperature gauge ......................................................... 97
Engine oil Capacity ................................................ 609
Checking ...............................................504
Warning light .......................................565
Engine oil maintenance data ........... 506
Engine switch ........................................... 201
EPS (Electronic Power Steering) Function ..................................................305
Warning light .......................................566
EV drive mode ...................................... 206
EV indicator ............................................... 79
Event data recorder (EDR).....................11

671Alphabetical index
NX300h_OM_USA_OM78082U
Odometer ...................................................97
OilEngine oil............................................... 609
Rear differential oil .............................. 612
Opener Back door ............................................... 130
Fuel filler door ......................................236
Hood ....................................................... 500
Outside rear view mirrors ..................163 Adjusting and folding........................ 163
Blind Spot Monitor (BSM)............. 316
Linked mirror function when reversing ................................. 164
Mirror position memory .................. 154
Outside rear view mirror defoggers ...........................................435
Outside temperature display ..............97
Overheating ........................................... 599 Panic mode ................................................ 119
Parking brake
Operation................................................ 213
Parking brake engaged warning buzzer/message ........... 215
Warning light .......................................566
Parking lights Light switch............................................. 219
Replacing light bulbs ....................... 552
PCS (Pre-Collision System) Function ................................................... 310
PCS switch ...............................................311
Warning light .......................................566
Warning message............................. 572
Personal lights ........................................443 Switch ...................................................... 444
Power back door opener and closer ....................................................... 129
Power control unit coolant Capacity .................................................... 611
Checking .............................................. 508
Preparing and checking before winter .................................... 326
Radiator ................................................. 509
OP
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

677Alphabetical index
NX300h_OM_USA_OM78082U
Warning buzzersApproach warning ............... 245, 259
Downshifting ......................................... 210
Intuitive parking assist ......................282
Light reminder .......................................221
Open door ............................................. 128
Seat belt reminder .............................567
Warning lights ABS .......................................................... 566
Brake hold operated indicator ............................................. 566
Brake Override System .................567
Brake system....................................... 565
Charging system............................... 565
Drive-Start Control...........................567
Electric power steering.................. 566
High coolant temperature............ 565
Low engine oil pressure ................ 565
Low fuel level .......................................567
Malfunction indicator lamp .......... 565
Master warning light.........................567
Parking brake indicator ................. 566
PCS warning light ............................ 566
Seat belt reminder light...................567
Slip indicator ........................................ 566
SRS ........................................................... 566
Tire pressure ........................................567 Warning messages...............................572
Washer
Checking .................................................. 511
Low washer fluid warning message.................. 511, 572
Preparing and checking before winter .................................... 326
Switch .......................................... 228, 234
Washing and waxing .......................... 484
Weights Cargo capacity........................ 182, 606
Load limits ..................................186, 606
Weights ................................................. 606
Wheels ..................................................... 528 Replacing wheels ..............................528
Size .............................................................613
Window glasses...................................... 166
Window lock switch.............................. 166
Windows Power windows....................................166
Rear window defogger .................. 435
Washer ....................................... 228, 234
Windshield wiper de-icer ................. 436
Windshield wipers Intermittent windshield wipers .... 228
Rain-sensing windshield wipers................................................... 230
Winter driving tips ................................326
Wireless charger.................................. 458
W