598 8-2. Steps to take in an emergency
NX300h_U_OM78007U ■
When exchanging the 12-volt battery ●
Use a Central Degassing type 12-volt battery (European Regulations). Also, use 12-volt
batteries with case si zes similar to one prior the exchange and an equivalent 20 hour
rate capacity (20HR) or greater.
• If the sizes differ, the 12-volt battery can not be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehicle is not
used is a short time, the 12-volt battery may discharge and hybrid system may not be
able to start. ●
After exchanging, firmly attach the following items to the exhaust hole of the 12-volt
battery.
For details, consult your Lexus dealer. • Use the exhaust hose that was attached to
the 12-volt battery before exchanging and
confirm that it is firmly connected to the
hole section of the vehicle.
• Use the exhaust hole plug included with the
12-volt battery exchanged or the one
installed on the battery prior to the
exchange. (Depending on the 12-volt bat-
tery to be exchanged, the exhaust hole may
be plugged.)
WA R N I N G ■
Avoiding 12-volt battery fires or explosions
Observe the following precautions to preven t accidentally igniting the flammable gas
that may be emitted from the 12-volt battery: ●
Make sure each jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any other than the intended terminal.●
Do not allow the other end of the jumper cable connected to the “+” terminal to come
into contact with any other parts or metal surfaces in the area, such as brackets or
unpainted metal. ●
Do not allow the + and - clamps of the jump er cables to come in to contact with each
other. ●
Do not smoke, use matches, cigarette lighters or allow open flame near the 12-volt
battery. Exhaust hole
Exhaust
hole plug
Exhaust hoseHole section
of the vehicle
Exhaust hole
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.)
6139-1. Specifications
9
Vehicle specifications
NX300h_U_OM78007U * : The coolant capacity is the quantity of reference.
If replacement is necessary, contact your Lexus dealer.Cooling system Capacity
* Gasoline
engine
Vehicles without towing package
7.7 qt. (7.3 L, 6.4 Imp.qt.)
Vehicles with towing package
7.1 qt. (6.7 L, 5.9 Imp.qt.)
Po w e r
control unit 3.3 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) Make DENSO FK16HR-A8
Gap 0.03 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 rates 5 A max.
628 9-1. Specifications
NX300h_U_OM78007U Production options weight The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously con-
sidered in curb weight or accessory weight, including
heavy duty brakes, ride levelers, roof rack, heavy duty
12-volt battery, and special trim
Rim A metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter) Nominal diameter of the bead seat
Rim size designation Rim diameter and width
Rim type designation The industry manufacturer’s designation for a rim by
style or code
Rim width Nominal distance between rim flanges
Vehicle capacity weight
(Total load capacity) The rated cargo and luggage load plus 150 lb. (68 kg)
times the vehicle’s designated seating capacity
Vehicle maximum load on
the tire The load on an individual tire that is determined by dis-
tributing to each axle its share of the maximum loaded
vehicle weight, and dividing by two
Vehicle normal load on the
tire The load on an individual tire that is determined by dis-
tributing to each axle its sh are of curb weight, accessory
weight, and normal occupant weight (distributed in
accordance with Table 1
* below), and dividing by two
We a t h e r s i d e The surface area of the rim not covered by the inflated
tire
Bead The part of the tire that is made of steel wires, wrapped
or reinforced by ply cords and that is shaped to fit the
rimTire related term Meaning
664 Alphabetical index
NX300h_U_OM78007U Card key ..................................................... 118
Care
Aluminum wheels ............................. 485
Exterior................................................... 484
Interior .................................................... 488
Seat belts ............................................... 489
Cargo capacity........................... 182, 608
Cargo hooks .......................................... 450
Cargo net hooks ................................... 450
CD player ................................................ 367
Chains ....................................................... 327
Child-protectors.....................................126
Child restraint system............................ 60
Booster seats installation...................68
Convertible seats
installation .............................................. 67
Front passenger occupant
classification system ......................... 53
Infant seats definition ........................... 62
Infant seats installation ........................66
Installing CRS with LATCH
anchors ..................................................... 71
Installing CRS with seat
belts ..........................................................66
Installing CRS with top tether
strap.......................................................... 73
LATCH anchors ..................................... 71 Child safety ................................................ 59
12-volt battery
precautions ............................ 514, 599
Airbag precautions.............................. 43
Back door precautions.....................135
Child restraint system......................... 60
How your child should
wear the seat belt .............................. 36
Installing child restraints .................... 60
Moon roof precautions .................... 172
Power window lock switch.............166
Power window precautions .......... 168
Rear door child-p rotectors ............ 126
Removed key battery
precautions ....................................... 533
Seat belt extender
precautions .......................................... 39
Seat belt precautions .......................... 38
Seat heater precautions ................. 440
Cleaning ...................................... 484, 488
Aluminum wheels ..............................485
Exterior ................................................... 484
Interior .................................................... 488
Seat belts................................................489
Clock......................................................... 456C
673Alphabetical index
NX300h_U_OM78007U Power easy access system .................154
Power outlets ......................................... 456
Power steering (Electric Power
Steering system) ................................305
Warning light ...................................... 566
Power switch ........................................... 201
Power windows
Door lock linked window
operation ..............................................167
Jam protection function ....................167
Operation ............................................... 166
Window lock switch.......................... 166
Pre-Collision System (PCS)
Function ................................................... 310
PCS switch............................................... 311
Warning light ...................................... 566
Warning message ............................. 572
Radar cruise control (dynamic
radar cruise control) ........................ 240
Radar cruise control
(dynamic radar cruise control
with full-speed range) ..................... 253
Radiator ....................................................509
Radio............................................................361
Rear Cross Traffic Alert ......................316
Rear seat
Folding down the rear
seatbacks ............................................. 148 Rear side marker lights
Light switch............................................. 219
Replacing light bulbs ....................... 552
Rear turn signal lights
Replacing light bulbs ....................... 547
Turn signal lever ................................... 212
Wattage ................................................... 617
Rear view mirror
Inside rear view mirror....................... 161
Outside rear view mirrors ..............163
Rear window defogger ...................... 435
Rear window wiper ..............................234
Refueling...................................................236
Capacity.................................................. 610
Fuel types................................................ 610
Opening the fuel tank cap ............ 236
When the fuel filler door
cannot be opened ......................... 238
Regenerative braking............................. 79
Remote Touch
* Replacing
Electronic key battery ..................... 532
Fuses ........................................................ 534
Light bulbs.............................................538
Tires .......................................................... 575
Resetting the message indicating
maintenance is required .................492
Reporting safety defects
for U.S. owners ...................................646
Road accident cautions ........................ 84R
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.