2015 LEXUS NX300h battery

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

642 9-2. Customization
NX300h_U_OM78007U WA R N I N G ■
Cautions during customization
As the hybrid system needs to be operating during customization, ensure that the vehi-
cle is parked in a place with adequate vent ilation. In a closed area such as a garage,
exhaust gases including harmful carbon mo noxide (CO) may collect and enter the
vehicle. This may lead to death or a serious health hazard.
NOTICE ■
During customization
To prevent 12-volt battery discharge, ensure that the hybrid syst em is operating while
customizing features.

6439-3. Initialization
9
Vehicle specifications
NX300h_U_OM78007UItems to initialize
* : If equippedThe following items must be initialized for normal system operation after such
cases as the 12-volt battery being re connected, or maintenance being per-
formed on the vehicle. Item When to initialize Reference
Message indicating mainte-
nance is required (U.S.A. only) • After the maintenance is per-
formed P. 4 9 2
Tire pressure warning system • When rotating the tires on vehi-
cles with differing front and rear
tire inflation pressures
• When changing the tire inflation
pressure by changing traveling
speed or load weight, etc.
• When changing the tire size P. 5 1 8
Oil maintenance • After the maintenance is per-
formed P. 5 0 6
Power back door
* • After reconnecting or changing
the 12-volt battery
• After changing a fuse P. 1 3 4
Po w e r w i n d o w
• When functioning abnormally
normally P. 1 6 7
Moon roof
* P. 1 7 0

658 What to do if... (Troubleshooting)
NX300h_U_OM78007UWhat to do if... (Troubleshooting) ●
If you lose your mechanical keys, ne w genuine mechanical keys can be made
by your Lexus dealer. (  P. 1 2 0 )●
If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. (  P. 122)●
Is the electronic key battery weak or depleted? (  P. 5 3 2 )●
Is the power switch in ON mode?
When locking the doors, turn the power switch off. (  P. 202)●
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person. ●
The function may not operate properly du e to the condition of the radio wave.
(  P. 1 4 2 )
●
Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
(  P. 1 2 6 )If you have a problem, check the following before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

659What to do if... (Troubleshooting)
NX300h_U_OM78007U ●
Did you press the power switch while firmly depressing the brake pedal?
(  P. 2 0 1 )●
Is the shift position in P? (  P. 2 0 3 )●
Is the electronic key anywhere detectable inside the vehicle? (  P. 1 4 0 )●
Is the steering wheel unlocked? (  P. 2 0 3 )●
Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way. (  P. 5 9 3 )●
Is the 12-volt battery discharged? (  P. 5 9 5 )●
Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
power switch in ON mode (  P. 5 9 1 )●
It is locked automatically to prevent theft of the vehicle. (  P. 2 0 4 )
●
Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. (  P. 1 6 6 )
●
The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a period
of time. (  P. 2 0 3 )If you think something is wrong The hybrid system does not start
The shift lever cannot be shifted from P even if you depress the brake
pedal
The steering wheel cannot be turned after the hybrid system is stopped
The windows do not open or close by operating the power window
switches
The power switch is turned off automatically

663Alphabetical index
NX300h_U_OM78007U Audio system
(with navigation system)
*Audio system.......................................... 336
Antenna ..................................................364
Audio input............................................345
AUX port...............................................345
Bluetooth ®
audio ............................. 390
CD player ..............................................367
iPod ........................................................... 374
MP3/WMA disc ...............................367
Optimal use ..........................................354
Portable music player ....................... 381
Radio ......................................................... 361
Setup menu ........................................... 347
Steering wheel audio
switches ............................................... 342
USB memory ....................................... 377
Automatic air conditioning system
Air conditioning filter....................... 530
Automatic air conditioning
system ................................................. 430
Micro dust and pollen filter ...........436
S-FLOW mode .................................. 432
Automatic headlight leveling
system ...................................................... 221
Automatic High Beam ....................... 223
Automatic light control system......... 221
AUX port................................................. 345 Back door .................................................. 129
Wireless remote control.................. 129
Back-up lights
Replacing light bulbs ...................... 550
Wattage ................................................... 617
Battery (12-volt battery)
If the 12-volt battery is
discharged.........................................595
Preparing and checking before
winter.................................................... 326
Warning light .......................................565
Battery (traction battery) ....................... 81
Bluetooth ®
............................................... 413
Audio system .......................................390
Hands-free system
(for cellular phone) ....................... 392
Bottle holders ........................................ 448
Brake
Brake Hold ............................................. 216
Fluid ............................................................614
Parking brake ........................................ 213
Regenerative braking ..........................79
Warning light .......................................565
Brake assist ............................................. 305
Brake Hold................................................ 216
Break-in tips ............................................. 176
Brightness control
Instrument panel light
control..................................................... 99
BSM (Blind Spot Monitor) ................. 316
Blind Spot Monitor function) .........319
Rear Cross Traffic Alert
function.................................................. 321 B
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

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