2015 LEXUS NX300h maintenance

5517-3. Do-it-yourself maintenance
7
Maintenance and care
NX300h_U_OM78007U Remove the light bulb.
Replace the light bulb, and install
the bulb base.
Install the back door cover Align the 2 tabs on the cover and
install. 3
4
5

552 7-3. Do-it-yourself maintenance
NX300h_U_OM78007U ■
Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by your Lexus
dealer. ●
Headlight low beams ●
Headlight high beams (LED type) ●
Front turn signal lights (LED type) ●
Parking lights and Daytime running lights ●
Front fog lights ●
Front side marker lights (LED type) ●
Side turn signal lights ●
Stop/tail lights ●
Rear side marker lights ●
High mounted stoplight ●
License plate lights ●
Outer foot lights ■
After replacing the bulbs
■
LED lights
The headlight low beams, headlight high beams (LED Type), front turn signal lights (LED
Type), parking lights, daytime running lights, front fog lights, front side marker lights (LED
Type), side turn signal lights, rear side ma rker lights, stop/tail lights, rear side marker
lights, high mounted stoplight and license plate lights, outer foot lights consist of a num-
ber of LEDs. If any of the LEDs burn out, take your vehicle to your Lexus dealer to have
the light replaced. ■
Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact your Lexus dealer for mo re information in the following situations:●
Large drops of water have built up on the inside of the lens.●
Wa t e r h a s b u i l t u p i n side the headlight.■
When replacing light bulbs
 P. 5 3 6After removing the engine compartment cover,
return the cover to original position with the
clips.
Insert
Press 1
2

5537-3. Do-it-yourself maintenance
7
Maintenance and care
NX300h_U_OM78007U WA R N I N G ■
Replacing light bulbs ●
Be sure to stop the hybrid system and turn off the lights. Do not attempt to replace the
bulb immediately after turning off the lights.
The bulbs become very hot and may cause burns. ●
Do not touch the glass portion of the light bulb with bare hands. When it is unavoid-
able to hold the glass portion, use and ho ld with a clean dry cloth to avoid getting
moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.●
Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or water entering the headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.●
Do not attempt to repair or disassemble light bulbs, connectors, electric circuits or
component parts.
Doing so may result in death or se rious injury due to electric shock.■
To prevent damage or fire ●
Make sure bulbs are fully seated and locked. ●
Check the wattage of the bulb before installin g to prevent heat damage.

554 7-3. Do-it-yourself maintenance
NX300h_U_OM78007U

5718-2. Steps to take in an emergency
8
When trouble arises
NX300h_U_OM78007U WA R N I N G ■
Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold and
inflated to the inflation pressure recomm ended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure la bel (tire and load information label). (If your
vehicle has tires of a different size than the size indicated on the vehicle placard or tire
inflation pressure label [tire and load in formation label], you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle ha s been equipped with a tire pressure moni-
toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure
telltale (tire pressure warning light) when on e or more of your tires is significantly
under-inflated. Accordingly, when the low ti re pressure telltale (tire pressure warning
light) illuminates, you should stop and check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a significantly under-inflated tire causes the
tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency
and tire tread life, and ma y affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure wa rning system) is not a substitute for proper
tire maintenance, and it is the driver’s resp onsibility to maintain correct tire pressure,
even if under-inflation has no t reached the level to trigger illumination of the TPMS low
tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-
function indicator to indicate when the system is not operating properly. The TPMS
(tire pressure warning system) malfunction indi cator is combined with the low tire pres-
sure telltale (tire pressure warning light). When the system detects a malfunction, the
telltale will flash for approximately one minu te and then remain continuously illumi-
nated. This sequence will cont inue upon subsequent vehicl e start-ups as long as the
malfunction exists. When the malfunction indicator is illuminated, the system may not
be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfun ctions may occur for a variety of reasons,
including the installation of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS (tire pressure warning system) from functioning properly. Always
check the TPMS (tire pressure warning syst em) malfunction telltale after replacing one
or more tires or wheels on your vehicle to ensure that the replacement or alternate
tires and wheels allow the TPMS (tire pressure warning system) to continue to function
properly.
NOTICE ■
To ensure the tire pressure warning system operates properly
Do not install tires with different specificatio ns or makers, as the tire pressure warning
system may not operate properly.

5738-2. Steps to take in an emergency
8
When trouble arises
NX300h_U_OM78007U * : A buzzer sounds the first time a message is shown on the multi-information display. ■
System warning lights
The master warning light does not come on or flash in the following cases. Instead, a sep-
arate system warning light will come on al ong with a message shown on the multi-infor-
mation display. ●
Malfunction of the ABS
The ABS warning light comes on. (  P. 566)●
Malfunction of th e charging system
The charging system warning light comes on. (  P. 565)■
If “Hybrid System Overheated Reduced Output Power” is shown
This message may be displayed when driv ing under severe operating conditions.
(For example, when drivin g up a long steep hill.)
Handling method:  P. 6 0 0■
If “Cooling Performance of The Hybrid Battery Is Low” is shown
The filter may be clogged, or the air intake vents or ducts may be blocked. Have the vehi-
cle inspected by your Lexus dealer. ■
If “Hybrid Battery Low Shift Out of N to Recharge” is shown
Message is displayed when the remaining charge for the hybrid battery (traction battery)
is low.
As the hybrid battery (traction battery) can not be charged when the shift lever is in N,
when stopped for long periods of time shift the shift lever to P.■
If “Hybrid Battery Low Hybrid System St opped Shift to P and Restart” is shown
Message is displayed when the remaining charge for the hybrid battery (traction battery)
is low, because vehicle has been sh ifted N for a long period of time.
When operating the vehicle, restart the hybrid system. ■
If “Shift to P Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the power switch
to OFF with the shift lever in any position other than P.
Shift the shift lever to P. ■
If “Shift Is in N Release Accele rator Before Shifting” is shown
Message is displayed when the accelerator pe dal has been depressed and the shift lever
is in N. Release the accelerator peda l and shift the shift lever to D or R.Comes
on  Does not sound Indicates a condition, such as malfunc-
tion of electrical components, their
condition, or indicates the need for
maintenance
Flashes  Does not sound Indicates a situation, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctlySystem
warning
light Wa r n i n g b u z z e r
* Wa r n i n g

574 8-2. Steps to take in an emergency
NX300h_U_OM78007U ■
If “Depress Brake When Vehicle Is Stopped Hybrid System May Overheat” is shown
Message is displayed when the accelerator pedal is depressed to maintain the vehicle
position when stopped on a upward slope, etc.
If this continues, the hybrid system may overheat.
Release the accelerator pedal and depress the brake pedal. ■
If “Oil Maintenance Required Soon” is shown
Indicates that the engine oil is scheduled to be changed. (The indicator will not work
properly unless the oil maintenance data has been reset.)
Check the engine oil, and change if necessar y. After changing the engine oil, the oil
change system should be reset. (  P. 5 0 6 )■
If “Oil Maintenance Required” is shown
Indicates that the engine oil should be changed. (After the engine oil is changed and the
oil maintenance data has been reset.)
Check and change the engine oil, and oil filt er by your Lexus dealer. After changing the
engine oil, the oil change system should be reset. (  P. 5 0 6 )■
If “See Owner’s Manual” is shown ●
If the following messages are shown, following the instru ctions, accordingly.
• “Engine Coolant Temp High” (  P. 6 0 0 )●
If the following messages are sh own, there may be a malfunction.
Immediately have the vehicle inspected by your Lexus dealer.
• “Hybrid System Malfunction”
•“Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Braking Power Low”
• “Smart Access System Malfunction” ●
If the following messages are sh own, there may be a malfunction.
Immediately stop the vehicle in a safe place and contact your Lexus dealer. Continuing
to drive the vehicle may be dangerous.
•“Low Oil Pressure”
• “Charging System Malfunction” ■
Warning buzzer
 P. 5 6 9
NOTICE ■
“High Power Consumption Partial Limit On AC/Heater Operation” is frequently
shown
There is a possible malfunction relating to the charging system or the 12-volt battery
may be deteriorating. Have the vehicle inspected by your Lexus dealer.

607
9Vehicle specifications
NX300h_U_OM78007U 9-1. Specifications
Maintenance data
(fuel, oil level, etc.).................. 608
Fuel information........................... 618
Tire information .............................621
9-2. Customization
Customizable features ............ 633
9-3. Initialization
Items to initialize ......................... 643