light LEXUS NX300H 2016 Owners Manual

5888-2. Steps to take in an emergency
NX300h_OM_USA_OM78082U
If the hybrid system will not start
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. ( P. 5 9 1 )
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( P. 8 3 )
●There may be a malfunction in the immobilizer system. ( P. 8 6 )
●There may be a malfunction in the steering lock system.
●The hybrid system may be malfunctioni ng due to an electrical problem such
as electronic key battery depletion or a blown fuse. However, depending on
the type of malfunction, an interim meas ure is available to start the hybrid sys-
tem. ( P. 5 8 9 )
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 5 9 4 )
●The 12-volt battery terminal connections may be loose or corroded.
(P. 5 1 2 )
Reasons for the hybrid system not starting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start ev en though the correct starting proce-
dure is being followed. ( P. 201)
The interior lights and headlights are dim, or the horn does not sound or
sounds at a low volume.

5898-2. Steps to take in an emergency
8
When trouble arises
NX300h_OM_USA_OM78082U
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 5 9 4 )
●One or both of the 12-volt battery terminals may be disconnected. ( P. 5 1 2 )
Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
When the hybrid system does not start, the following steps can be used as an
interim measure to start the hybrid system if the power switch is functioning nor-
mally:
Do not use this starting procedur e except in cases of emergency.
Set the parking brake.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for ab out 15 seconds while depressing the
brake pedal firmly.
Even if the hybrid system can be starte d using the above steps, the system may
be malfunctioning. Have the vehicle inspected by your Lexus dealer.
The interior lights and headlights do not turn on, or the horn does not
sound.
Emergency start function
1
2
3
4

5968-2. Steps to take in an emergency
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Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximately 5 minutes to recharge the 12-volt bat-
tery of your vehicle.
Open and close any of the doors of your vehicle with the power switch off.
Maintain the engine speed of the second vehicle and start the hybrid system
of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator comes on. If the indicator light does not
come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables in the exact
reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the fuse box
cover to its original position.
Once the hybrid system starts, have th e vehicle inspected at your Lexus dealer
as soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and th e draining effects of certain electrical appli-
ances. If the vehicle is left for a long time, the 12-volt battery may discharge, and the
hybrid system may be unable to start. (The 12-volt battery recharges automatically while
the hybrid system is operating.)
■When the 12-volt battery is removed or discharged
●In some cases, it may not be possible to unlock the doors using the smart access system
with push-button start when the 12-volt battery is discharged. Use the wireless remote
control or the mechanical key to lock or unlock the doors.
●The hybrid system may not start on the first attempt after the 12-volt battery has
recharged but will start normally after the second attempt. This is not a malfunction.
●The power switch mode is memorized by the vehicle. When the 12-volt battery is
reconnected, the system will return to the mode it was in before the 12-volt battery was
discharged. Before disconnecting the 12-volt battery, turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt battery dis-
charged, be especially careful when reconnecting the 12-volt battery.
●The power back door must be initialized. ( P. 1 3 4 )
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7
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5978-2. Steps to take in an emergency
8
When trouble arises
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■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 cannot 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 into contact with each
other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the 12-volt
battery.
Exhaust holeExhaust
hole plug
Exhaust hose
Hole section
of the vehicle
Exhaust hole

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.

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 lights8C
Luggage compartment light5C
A: HB3 halogen bulbs
B: Wedge base bulbs (amber) C: Wedge base bulbs (clear)
*: If equipped

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)

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

6349-2. Customization
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■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

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