tire pressure LEXUS NX300h 2015 Owners Manual

TABLE OF CONTENTS
6
NX300h_U_OM78007U 6-4. Other interior features
Other interior features ............ 455
• Sun visors ................................ 455
• Vanity mirrors ........................ 455
• Clock ........................................ 456
• Power outlet (12 VDC)...... 456
• Power outlet (120 VAC) ....457
• Wireless charger.................. 458
• Armrest.................................... 465
• Assist grips ............................. 465
• Coat hooks ............................. 466
Garage door opener ................467
Compass ........................................473
Safety Connect............................ 477
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................ 484
Cleaning and protecting
the vehicle inte rior..................488
7-2. Maintenance
Maintenance
requirements ..............................491
General maintenance.............. 494
Emission inspection and
maintenance (I/M)
programs .....................................497 7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions................................ 498
Hood ...............................................500
Positioning a floor jack.............. 501
Engine compartment ............... 502
12-volt battery ...............................512
Tires....................................................516
Tire inflation pressure ............... 525
Wheels ........................................... 528
Air conditio ning filter ............... 530
Electronic key battery.............. 532
Checking and replacing
fuses.............................................. 534
Light bulbs .................................... 538
8-1. Essential information
Emergency flashers .................. 556
If your vehicle has to
be stopped in an
emergency .................................5577
Maintenance and care 8
When trouble arises

17Pictorial index
NX300h_U_OM78007U Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228 Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 326
To prevent freezing (windshield wiper de-icer) . . . . . . . . . . . . . . . . . . . . . . . . . .P. 436
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 486
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 236Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 236
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 610
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 516 Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 615
Winter tires/tire chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 327
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . . P. 516
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 575
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 500Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 500
Engine compartment cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 503
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 611
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 600
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 57 2
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 219
Parking lights/daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 219
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 227
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P . 212
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 219
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 21 9
Back-up light Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 208
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 21 94
5
6
7
Light bulbs of the exte rior lights for driving
(Replacing method: P. 538, Watts: P. 617)
* : If equipped8
9
10
11
12
13
14
15

94 2. Instrument cluster
NX300h_U_OM78007U * 1
: These lights turn on when the power switch is turned to ON mode to indicate that a
system check is being performed. They will turn off after the hybrid system is on, or
after a few seconds. There may be a malfunctio n in a system if the lights do not turn on,
or turn off. Have the vehicle inspected by your Lexus dealer.
* 2
: This light illuminates on the multi-information display.
* 3
: The light flashes to indicate a malfunction.
* 4
: This light illuminates on the center panel.
The indicators inform the driver of the op erating state of the vehicle’s various sys-
tems. * 1
Master warning light
(  P. 5 6 7 )
* 2
Brake Override System/
Drive-Start Control warning
light (  P. 5 6 7 )
* 1
Tire pressure warning light
(  P. 5 6 7 )
Indicators Turn signal indicator
(  P. 212) “READY” indicator
(  P. 2 0 1 )
(U.S.A.)
Headlight indicator
(  P. 2 1 9 ) EV indicator (  P. 7 9 )
(Canada)
Tail light indicator
(  P. 220) * 8
EV drive mode indicator
(  P. 2 0 6 )
Headlight high beam
indicator (  P. 220) * 8
“ECO” indicator
(  P. 303)
(if equipped)
Automatic High Beam
indicator (  P. 223) * 8
“SPORT” indicator
(  P. 303)
Fog light indicator
(  P. 2 2 7 ) * 8
(if equipped)Radar cruise control
indicator (  P. 2 4 0 , 2 5 3 )

104 2. Instrument cluster
NX300h_U_OM78007U ■
Average vehicle speed (after reset
* 2
/a f t e r s t a r t )
* 1
Displays the average vehicle speed since the function was reset and the
hybrid system was started, respectively ■
Elapsed time (after reset
* 2
/after start)
* 1
Displays the elapsed time since the function was reset and the hybrid system
was started, respectively ■
Distance (driving range/after start)
* 1
Displays the estimated maximum distance that can be driven with the quantity
of fuel remaining and the distance driv en after the hybrid system was started
respectively. • This distance is computed based on your average fuel consumption. As a result,
the actual distance that can be driven may differ from that displayed.
• When only a small amount of fuel is added to the tank, the display may not be
updated.
When refueling, turn the power switch off. If the vehicle is refueled without turning
the power switch off, the display may not be updated.■
Energy monitor
 P. 1 1 1■
Tire inflation pressure
Displays inflation pressure of each tire. The inflation pressure of the spare tire will not be displayed.■
Display off
A blank screen is displayed
* 1
: Displayed when the item is set in “D rive Info 1” or “Drive Info 2”. (  P. 6 3 8 )
* 2
: The function can be reset by pressing th e of the meter control switches for longer
than 1 second when the item to reset is displayed.
If there is more than one item that can be reset, the item selection screen will appear.

1052. Instrument cluster
2
Instrument cluster
NX300h_U_OM78007U ■
Suspension of the settings display
In the following situations, th e settings display using the meter control switches will be
suspended. ●
When a warning message appears on the multi-information display●
When the vehicle begins to move ■
Tire inflation pressure ●
It may take a few minutes to display the tire inflation pressure after the power switch is
turned to ON mode. It may also take a few minutes to display the tire inflation pressure
after inflation pressure has been adjusted. ●
“---” may be displayed if the tire information cannot be determined due to unfavorable
radio wave conditions. ●
Tire inflation pressure changes with temperat ure. The displayed values may also be dif-
ferent from the values measured using a tire pressure gauge.■
When disconnecting and reconnec ting 12-volt battery terminals
The drive information will be reset. ■
Liquid crystal display
 P. 1 0 1
WA R N I N G ■
Cautions during setting up the display
As the hybrid system needs to be operating during setting up the display, ensure that
the vehicle is parked in a place with adequate ventilation. In a closed area such as a
garage, exhaust gases includin g harmful carbon monoxide (CO) may collect and enter
the vehicle. This may lead to death or a serious health hazard.
NOTICE ■
The multi-information disp lay at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal information
display. At extremely low temperatures, th e information display monitor may respond
slowly, and display changes may be delayed. ■
During setting up the display
To prevent 12-volt battery discharge, ensure that the hybrid syst em is operating while
setting up the display features.

276 4-5. Using the driving support systems
NX300h_U_OM78007U ●
When the lane markers are on a curb, etc. ●
When driving on a particularly brig ht road surface, such as concrete●
When driving on a road surface that is bright due to reflected light ●
When driving in a location wh ere the light level changes rapi dly, such as the entrance to
or exit from a tunnel ●
When sunlight or the headlights of oncoming vehicles are shining directly into the cam-
era lens ●
When driving on roads that are branching or merging ●
When driving on a hill ●
When driving on winding roads or roads that are uneven ●
When driving on rough or unpaved roads ●
When driving on a sharp curve ●
When lane markers are extremely narrow or extremely wide ●
When the vehicle leans to one side an unus ual amount due to a heavy load or improper
tire inflation pressure ●
When the following distance between your vehicle and the vehicle ahead is extremely
short ●
When the vehicle experiences strong up-and -down motion such as when driving on an
extremely rough road or on a seam in the pavement ●
When headlight brightness at nighttime is reduced due to dirt on the lenses, or when
the headlights are misaligned ●
When receiving a side wind ■
When changing the tires
Depending on the tires used, sufficient performance may not be maintainable.■
Warning messages for the LDA
Warning messages are used to indicate a syst em malfunction or to inform the driver of
the need for caution while driving. If a wa rning message is shown on the multi-informa-
tion display, read the message and follow the instructions.
Also, even if a warning message is displayed, it will not impede normal driving. ■
When turning on/off the steering control function
From “Settings display” (  P. 103) of the multi-information display, the steering
control function can be turned on/off.
Pressing the or meter control switches (  P. 103), selects
With each press of meter control switch es, the control switches between “On” and
“Off” ■
Sensitivity adjustment for th e lane deviation alert buzzer
From
“Settings display” (  P. 103) of the multi-inform ation display, the alert sen-
sitivity for the alert buzzer when deviating from the lane can be adjusted.
Pressing the or meter control switches (  P. 103), selects
With each press of meter control switches, the control switches between “High”
and “Standard” 1
2
1
2

2774-5. Using the driving support systems
4
Driving
NX300h_U_OM78007U WA R N I N G ■
Before using the LDA
Do not over rely on the LDA. The LDA does not drive the vehicle automatically, nor
does it reduce the amount of care you need to take. As such, the driver must always
assume full responsibility for understandin g his/her surroundings, for operating the
steering wheel to correct the driving line, and for driving safely. Also, take occasional
rests from fatigue due to driving over long periods of time, etc.
Inappropriate or negligent driving co uld lead to an unexpected accident.■
Do not drive without holding the steering wheel
While the steering control function is operating, when the system judges that the vehi-
cle is being driven without holding the steering wheel, a warning message is displayed.
(  P. 2 7 1 )
Inappropriate steering wheel operations and/or negligent driving could lead to an
unexpected accident. When driving, firmly ho ld the steering wheel and keep safe driv-
ing in mind. ■
To avoid operating the LDA by mistake
Switch the LDA off using the LDA switch when not in use. (  P. 2 7 2 )■
Situations unsuitable for LDA
Do not use the LDA in any of the following situations.
Otherwise, the system may not function correctly and could result in an accident. ●
When driving with snow tires, tire ch ains, a spare tire, or similar equipment●
When a tire with a different structure, maker, brand, or tread pattern is used. ●
When remain tread of the tire or the air pressure is insufficient●
When restructuring the suspension ●
When there are objects or structures along the roadside that might be misinterpreted
as lane markers (such as guardrails, a curb, reflector posts, etc.) ●
When driving on snowy roads ●
When pavement lane markers are difficult to see due to rain, snow, fog, sand, dust,
etc. ●
When there are visible lines on the pavement from road repairs, or if the remains of
old lane markers are still visible on the road ●
When driving on a road with lane closures due to maintenance, or when driving in a
temporary lane ●
When driving on road surfaces that are slippery from rain, snow, etc.●
When driving in traffic lanes other than highways and freeway ●
When driving through construction areas

2994-5. Using the driving support systems
4
Driving
NX300h_U_OM78007U ■
If you notice any symptoms
If you notice any of the following symp toms, refer to the likely cause and the
solution, and re-check.
If the symptom is not resolved by the solution, have the vehicle inspected by
your Lexus dealer.Things you should know Likely cause Solution
 The image is difficult to see
• The vehicle is in a dark area
• The temperature around the lens is
either high or low
• The outside temperature is low
• There are water droplets on the cam-
era
• It is raining or humid
• Foreign matter (mud, etc.) is adhering
to the camera
• There are scratches on the camera
• Sunlight or headlights are shining
directly into the camera
• The vehicle is under fluorescent lights,
sodium lights, mercury lights etc. If this happens due to these causes, it
does not indicate a malfunction.
Back up while visually checking the vehi-
cle’s surroundings. (Use the monitor
again once conditions have been
improved.)
The image on the Lexus parking assist
monitor system screen can be adjusted.
(  P. 3 5 2 )
 The image is blurry
Dirt or foreign matter (such as water
droplets, snow, mud, etc.) is adhering to
the camera. Flush the camera with a large quantity of
water. After that, rinse the camera lens
with water and wipe it clean with a soft
and wet cloth.
 The image is out of alignment
The camera or surrounding area has
received a strong impact. Have the vehicle inspected by your Lexus
dealer.
 The guide lines are very far out of alignment
The camera position is out of alignment. Have the vehicle inspected by your Lexus
dealer.
• The vehicle is tilted (there is a heavy
load on the vehicle, tire pressure is low
due to a tire puncture, etc.)
• The vehicle is used on an incline. If this happens due to these causes, it
does not indicate a malfunction.
Back up while visually checking the vehi-
cle’s surroundings.

3094-5. Using the driving support systems
4
Driving
NX300h_U_OM78007U WA R N I N G ■
The ABS does not operate effectively when ●
The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road). ●
The vehicle hydroplanes while driving at high speed on wet or slick road. ■
Stopping distance when the ABS is operat ing may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always maintain a
safe distance from the vehicle in front of you, especially in the following situations:●
When driving on dirt, gravel or snow-covered roads ●
When driving with tire chains ●
When driving over bumps in the road ●
When driving over roads with potholes or uneven surfaces ■
TRAC may not operate effectively when
Directional control and power may not be achievable while drivin g on slippery road
surfaces, even if the TRAC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost. ■
Hill-start assist control does not operate effectively when ●
Do not overly rely on the hill-start assist control. The hill-start assist control may not
operate effectively on steep inclines and roads covered with ice. ●
Unlike the parking brake, hill-start assist control is not intended to hold the vehicle
stationary for an extended period of time. Do not attempt to use hill-start assist con-
trol to hold the vehicle on an incline, as doing so may lead to an accident. ■
When the TRAC, VSC and/or ABS are activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause an
accident. Exercise particular care when the indicator light flashes. ■
When the TRAC/VSC system are turned off
Be especially careful and drive at a speed ap propriate to the road conditions. As these
are the systems to help ensure vehicle st ability and driving force, do not turn the
TRAC/VSC systems off unless necessary. ■
Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire infla-
tion pressure level.
The ABS, TRAC and VSC systems will not function correctly if different tires are
installed on the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels. ■
Handling of tires and the suspension
Using tires with any kind of problem or modi fying the suspension will affect the driving
assist systems, and may caus e a system to malfunction.

3254-6. Driving tips
4
Driving
NX300h_U_OM78007U ◆ Delays
Repeated acceleration and deceleration, as well as long waits at traffic lights,
will lead to bad fuel economy. Check traffic reports before leaving and avoid
delays as much as possible. When drivin g in a traffic jam, gently release the
brake pedal to allow the vehicle to move forward slightly while avoiding over-
use of the accelerator pedal. Doing so can help control excessive gasoline
consumption.
◆ Highway driving
Control and maintain the vehicle at a co nstant speed. Before stopping at a toll
booth or similar, allow plenty of time to release the accelerator and gently
apply the brakes. A greater amount of electrical energy can be regenerated
when slowing down.
◆ Air conditioning
Use the air conditioning only when necessary. Doing so can help reduce
excessive gasoline consumption.
In summer: When the ambient temperature is high, use the recirculated air
mode. Doing so will help to reduce th e burden on the air conditioning system
and reduce fuel consumption as well.
In winter: Because the gasoline engine will not automatically cut out until it
and the interior of the vehicle are warm, it will consume fuel. Also, fuel con-
sumption can be improved by avoiding overuse of the heater.
◆ Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. Improper tire infla-
tion pressure can cause poor fuel economy.
Also, as snow tires can cause large amou nts of friction, their use on dry roads
can lead to poor fuel economy. Use ti res that are appropriate for the season.
◆ Luggage
Carrying heavy luggage will lead to poor fuel economy. Avoid carrying
unnecessary luggage. Installing a large roof rack will also cause poor fuel
economy.
◆ Warming up before driving
Since the gasoline engine starts up and cuts out automatically when cold,
warming up the engine is unnecessary. Moreover, frequently driving short dis-
tances will cause the engine to repeated ly warm up, which can lead to excess
fuel consumption.