charging LEXUS NX300h 2018 Owner's Manual

3937-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U 7
When trouble arises WARNING■
Avoiding 12-volt battery fires or
explosions
Observe the following precautions to
prevent accidentally igniting the flamma-
ble gas that may be emitted from the 12-
volt battery: ●
Make sure each jumper cable is con-
nected to the correct terminal and that
it is not unintentiona lly in contact with
any other than the intended terminal.●
Do not allow the other end of the
jumper cable connected to the “+” ter-
minal 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
jumper cables to come into contact
with each other.●
Do not smoke, use matches, cigarette
lighters or allow open flame near the
12-volt battery.■
12-volt Battery precautions
The 12-volt battery contains poisonous
and corrosive acidic electrolyte, while
related parts contain lead and lead com-
pounds. Observe the following precau-
tions when handling the 12-volt battery: ●
When working with the 12-volt battery,
always wear safety glasses and take
care not to allow any battery fluids
(acid) to come into contact with skin,
clothing or the vehicle body.
●
Do not lean over the 12-volt battery.
●
In the event that battery fluid comes
into contact with the skin or eyes,
immediately wash the affected area
with water and seek medical attention.
Place a wet sponge or cloth over the
affected area until medical attention
can be received.
●
Always wash your hands after handling
the 12-volt battery support, terminals,
and other batter y-related parts. ●
Do not allow children near the 12-volt
battery. ■
After recharging the 12-volt battery
Have the 12-volt battery inspected at
your Lexus dealer as soon as possible.
If the 12-volt battery is deteriorating, con-
tinued use may cause the 12-volt battery
to emit a malodorous gas, which may be
detrimental to the health of passengers. ■
When exchanging the 12-volt battery
After exchanging, securely attach the
exhaust hose and exhaust hole plug to
the exhaust hole of the exchanged 12-
volt battery. If not properly installed,
gases (hydrogen) may leak into the vehi-
cle interior, and there is the possible dan-
ger of the gas igniting and exploding.
NOTICE■
When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entan-
gled in the cooling fans or belt. ■
To prevent damaging the vehicle
The exclusive jump starting terminal is to
be used when charging the 12-volt bat-
tery from another vehicle in an emer-
gency. It cannot be used to jump start
another vehicle.

404 8-1. Specifications
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
Spark plug
■
12-volt Battery
■
Charging rates
*
: The fluid capacity is the quantity of reference.
If replacement is necessary, contact your Lexus dealer.Ignition system 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 Specific voltage reading
at 68°F (20°C): 12.0 V or higher
If the voltage is lower th an the standard value,
charge the battery.
(After charging the battery, turn on the high beam
headlights for 30 seconds with the power switch
off, and turn the headlights off.)
Quick charge
Slow charge 15 A max.
5 A max.
Hybrid transmission Fluid capacity * 
Front
4.0 qt. (3.8 L, 3.3 Imp.qt.)
Fluid type Toyota Genuine ATF WS
NOTICE
■
Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.

457What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_OM78212U Alphabetical Index
457Replacing ........................................................377
Rotating tires ................................................ 337
Size....................................................................406
Snow tires ...................................................... 257
Spare tire............................................ 377, 406
Tire identification number .........................411
Tire pressure warning system .............338
Uniform Tire Quality Grading..............413
Warning light ............................................... 370
Tools.................................................................. 378
Top tether strap................................................57
Total load capacity ......................................400
Towing
Dinghy towing ............................................... 167
Emergency towing ...................................360
Towing eyelet .............................................. 362
Trailer sway control ..................................250
Trailer towing ...................................... 159, 167
TRAC (Traction Control) ........................ 250
Traction battery (Hybrid battery) ............ 64
Hybrid battery (traction battery) air
intake and discharge vents................... 66
Location............................................................. 64
Specification .................................................. 401
Warning messages ..................................... 67
Traction motor (electric motor) ................. 61
Trailer sway control .................................... 250
Trailer towing ........................................ 159, 167
Transmission
Hybrid transmission ................................... 173
Selecting a driving mode....................... 249
Trip meters .........................................................79
Turn signal lights
Replacing light bulbs....................353, 354
Turn signal lever ........................................... 176
Wattage.......................................................... 407
V
Vanity lights
Vanity lights ..................................................288
Wattage.......................................................... 407
Vanity mirrors ...............................................288 Vanity lights ................................................. 288
Vehicle data recordings ..................................7
Vehicle identification number ................400
Vehicle Stability Control (VSC) ........... 250
VSC (Vehicle Stability Control) ........... 250 W
Warning buzzers
Approach warning.................................... 223
Downshifting ..................................................176
Intuitive parking assist .............................. 232
Light reminder .............................................. 184
Open door ..................................................... 107
Seat belt reminder ........................ 369, 370
Vehicle sway warning ................................ 211
Warning lights
ABS ................................................................... 367
Brake hold operated indicator .......... 368
Brake Override System ...........................371
Brake system............................................... 365
Charging system....................................... 365
Drive-Start Control.....................................371
Electric power steering........................... 367
High coolant temperature.................... 366
LDA indicator ............................................. 368
Low engine oil pressure........................ 365
Low fuel level .............................................. 369
Malfunction indicator lamp .................. 366
Master warning light.................................370
Parking brake indicator ......................... 369
PCS warning light ..................................... 367
PKSB OFF indicator ............................... 368
Seat belt reminder light.............. 369, 370
Slip indicator ................................................ 368
SRS ................................................................... 366
Tire pressure ................................................370
Warning messages ..................................... 374
Washer
Checking ....................................................... 332
Low washer fluid warning message332,
374
Preparing and checking before winter