2015 LEXUS NX300h flat tire

2254-3. Operating the lights and wipers
4
Driving
NX300h_U_OM78007U ■
The Automatic High Beam can be operated when
The power switch is in ON mode. ■
Camera sensor dete ction information●
High beam may not be automatically tu rned off in the following situations:
• When oncoming vehicles sudd enly appear from a curve
• When the vehicle is cut in front of by another
• When oncoming or preceding vehicles are hidden from sight due to repeated
curves, road dividers or roadside trees ●
High beam may be turned off if an oncoming vehicle that is using fog lights without
using the headlights is detected. ●
House lights, street lights, red traffic sign als, and illuminated billboards or signs may
cause the high beam to turn off. ●
The following factors may affect the amount of time taken to turn high beam on or off:
• The brightness of headlights, fog lights, and tail lights of oncoming and preceding
vehicles
• The movement and direction of oncoming and preceding vehicles
• When a oncoming or preceding vehicle on ly has operational lights on one side
• When a oncoming or preceding vehicle is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the road surface, etc.)
• The number of passengers and amount of luggage ●
High beam may be turned on or off when unexpected by the driver.●
In the situations below, you should consider turning the high beams on or off manually
rather than relying on the Automatic High Beam system.
• The system is not able to correctly dete ct the surrounding brightness levels, and
flashes or exposes nearby pe destrians to the high beam.
• In bad weather (rain, snow , fog, sandstorms, etc.)
• The windshield is obscured by fog, mist, ice, dirt, etc.
• The windshield is cracked or damaged.
• The camera sensor is deformed or dirty.
• The camera sensor temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights, ta il lights or fog lights.
• Vehicles ahead have headlights or tail lights that are either switched off, dirty, are
changing color, or are not aimed properly.
• When driving through an area of intermit tently changing brightness and darkness.
• When frequently and repeatedly driving ascending/descending roads, or roads with
rough, bumpy or uneven surfaces (such as stone-paved roads, gravel tracks, etc.).
• When frequently and repeat edly taking curves or driving on a winding road.
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The back of a vehicle ahead is highly reflective, such as a container on a truck.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or titling, due to a flat tire, a trailer being towed, etc.
• The driver believes that the high beam may be causing problems or distress to other
drivers or pedestrians nearby.

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

3014-5. Using the driving support systems
4
Driving
NX300h_U_OM78007U WA R N I N G ■
When using the Lexus parking assist monitor system
The parking assist monitor is a supplemental device intended to assist the driver when
backing up. When backing up, be sure to chec k visually behind and all around the vehi-
cle before proceeding.
Observe the following precautions to avoid an accident that could result in death or
serious injuries. ●
Never depend on the parking assist monitor entirely when backing up. The image
and the position of the guide lines displaye d on the screen may differ from the actual
state.
Use caution, just as you would when backing up any vehicle. ●
Be sure to back up slowly, depressing the brake pedal to control vehicle speed. ●
If you seem likely to hit nearby vehicles, obstacles, people or mount the shoulder,
depress the brake pedal to stop the vehicle. ●
The instructions given are only guidelines.
When and how much to turn the steering wheel will vary according to traffic condi-
tions, road surface conditions, vehicle condit ion, etc. when parking. It is necessary to
be fully aware of this before using the parking assist system. ●
When parking, be sure to check that the par king space will accommodate your vehi-
cle before maneuvering into it. ●
Do not use the parking assist monitor in the following cases:
• On icy or slick road surfaces, or in snow
• When using tire chains or emergency tires
• When the back door is not closed completely
• On roads that are not flat or straight, such as curves or slopes. ●
In low temperatures, the screen may darken or the image may become faint. The
image could distort when the vehicle is moving, or you may become unable to see the
image on the screen. Be sure to check dire ct visually and with the mirrors all around
the vehicle before proceeding. ●
If the tire sizes are changed, the position of the guide lines displayed on the screen
may change. ●
The camera uses a special lens. The dist ances between objects and pedestrians that
appear in the image displayed on the screen will differ from the actual distances.
(  P. 2 9 5 ) ●
Estimated course line display mode: If the st eering wheel is straight and the vehicle
width guide lines and the estimated course li nes are not in alignment, have the vehicle
inspected by your Lexus dealer.

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.

480 6-4. Other interior features
NX300h_U_OM78007U ■
Automatic Collis ion Notification
In case of either airbag deployment or severe rear-end collision, the system is
designed to automatically call the response center. The responding agent
receives the vehicle’s location and attempts to speak with the vehicle occu-
pants to assess the level of emergency. If the occupants are unable to commu-
nicate, the agent automatically treats the call as an emergency, contacts the
nearest emergency services provider to describe the situation, and requests
that assistance be se nt to the location.■
Stolen Vehicle Location
If your vehicle is stolen, Safety Connect can work with local authorities to
assist them in locating and recovering the vehicle. After filing a police report,
call the Safety Connect response center at 1-800-25-LEXUS
(1-800-255-3987) and follow the prompts for Safety Connect to initiate this
service.
In addition to assisting law enforcement with recovery of a stolen vehicle,
Safety-Connect-equipped vehicle location data may, under certain circum-
stances, be shared with third parties to locate your vehicle. Further informa-
tion is available at Lexus.com. ■
Emergency Assistance Button (“SOS”)
In the event of an emergency on the ro ad, push the “SOS” button to reach the
Safety Connect response center. Th e answering agent will determine your
vehicle’s location, assess the emergency, and dispatch the necessary assis-
tance required. If you accidentally press the “SOS” button, tell the response-center agent that you
are not experiencing an emergency.■
Enhanced Roadside Assistance
Enhanced Roadside Assistance adds GP S data to the already included war-
ranty-based Lexus roadside service.
Subscribers can press the “SOS” button to reach a Safety Connect response-
center agent, who can help with a wide range of needs, such as: towing, flat
tire, fuel delivery, etc. For a description of the Roadside Assistance services
and their limitations, please see the Safety Connect Terms and Conditions,
which are available at Lexus.com.Safety Connect services

483
7Maintenance and care
NX300h_U_OM78007U 7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior.................484
Cleaning and protecting
the vehicle interior ................. 488
7-2. Maintenance
Maintenance
requirements.............................. 491
General maintena nce .............. 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 conditioning filter ...............530
Electronic key battery .............. 532
Checking and replacing
fuses ..............................................534
Light bulbs.....................................538

496 7-2. Maintenance
NX300h_U_OM78007U Vehicle exterior Items Check points
Doors • Do the doors operate smoothly?
Engine hood • Does the engine hood lock system work properly?
Fluid leaks • There should not be any si gns of fluid leakage after
the vehicle has been parked.
Ti r e s • Is the tire inflation pressure correct?
• The tires should not be damaged or excessively
worn.
• Have the tires been rotated according to the mainte-
nance schedule?
• The wheel nuts should not be loose.
Windshield wipers/
rear window wiper • The wiper blades should no t show any signs of crack-
ing, splitting, wear, contamination or deformation.
• The wiper blades should clear the windshield/rear
window without streaking or skipping.
WA R N I N G ■
If the hybrid system is operating
Turn the hybrid system off and ensure that there is adequate ventilation before per-
forming maintenance checks.