2018 NISSAN ALTIMA engine

∙ When thefront defroster button is
pressed, the air conditioner will auto-
matically be turned on at outside tem-
peratures above 36°F (2°C). The air recir-
culate mode automatically turns off,
allowing outside air to be drawn into the
passenger compartment to further im-
prove the defogging performance.
Remote Engine Start with
Intelligent Climate Control (if so
equipped)
Vehicles equipped with automatic climate
controls and Remote Engine Start function
may go into automatic heating or cooling
mode when Remote Engine Start is acti-
vated depending on outside and cabin
temperatures. During this period, the cli-
mate control display and buttons will be
inoperable until the ignition switch is
turned on. In Remote Engine Start defrost-
ing mode, the rear window defroster and
heated steering wheel (if so equipped) may
be activated automatically.
MANUAL OPERATION
Fan speed control
Press thefan speed control buttons
to manually control the fan speed.
Press the AUTO button to return to auto-
matic control of the fan speed.
Temperature control dial
The temperature control dial allows you to
adjust the temperature of the outlet air. To
lower the temperature, turn the dial to the
lef t. To increase the temperature, turn the
dial to the right. Temperature can be ad-
justed on the driver’s and passenger’s side.
Air recirculation
Press theair recirculation button to
recirculate interior air inside the vehicle.
The
indicator light on the button will
come on.
The air recirculation cannot be activated
when the air conditioner is in the
front defrosting mode.
When the outside temperature exceeds 70°F
(21°C), the air conditioning system may de-
fault to air recirculation mode automatically
to reduce overall power consumption. To exit
air recirculation mode, select the fresh air
intake button to enter fresh air mode.
Fresh air intake
Press thefresh air intake button to
draw outside air into the passenger com-
partment.
Air conditioner button
Start the engine, press thefan control
buttons to the desired position and press
the
button to turn on the air condi-
tioner. To turn off the air conditioner, press
the
button again.
The air conditioner cooling function op-
erates only when the engine is running.
Air flow control
Pressing the MODE button manually con-
trols air flow and selects the air outlet:
— Air flows from center and side vents.
— Air flows from center and sidevents and foot outlets.
— Air flows mainly from footoutlets.
— Air flows from defroster andfoot outlets.
4-22Monitor, climate, audio, phone and voice recognition systems

To turn system off
Press the ON-OFF button.
Rear window and outside mirror
(if so equipped) defroster switch
For additional information, refer to “Rear
window and outside mirror (if so equipped)
defroster switch” in the “Instruments and
controls” section of this manual.
OPERATING TIPS
The sunload sensor, located on the top
driver’s side of the instrument panel, helps
the system maintain a constant tempera-
ture. Do not put anything on or around this
sensor.∙ When the climate system is in auto-
matic operation and the engine coolant
temperature and outside air tempera-
ture are low, the air flow outlet may de-
fault to defroster mode for a maximum
of 2 minutes 30 seconds. This is not a
malfunction. Af ter the engine coolant
temperature warms up, the air flow out-
let will return to foot mode and opera-
tion will continue normally.
∙ When the outside and interior cabin temperatures are moderate to high, the
intake setting may default to turn off air
recirculation to allow fresh air into the
passenger compartment. You may no-
tice air flow from the foot mode, bi-level
mode, or side demist vent outlets for a
maximum of 15 seconds. This may oc-
cur when previous climate setting was
system off. This is not a malfunction.
Af ter the initial warm air is expelled, the
intake will return to automatic control,
air flow outlet will return to previous set-
tings, and operation will continue nor-
mally. To exit, press any climate control
button.
∙ Keep the moonroof (if so equipped) closed while the air conditioner is in op-
eration.
LHA1136
Monitor, climate, audio, phone and voice recognition systems4-23

∙ If you feel that the air flow mode youhave selected and the outlets the air is
coming out do not match, select
the
mode.
∙ When you change the air flow mode, you may feel air flow from the feet vents
for just a moment. This is not a mal-
function. The air conditioner system in your NISSAN
vehicle is charged with a refrigerant de-
signed with the environment in mind.
This refrigerant does not harm the
earth’s ozone layer.
Special charging equipment and lubricant
is required when servicing your NISSAN air
conditioner. Using improper refrigerants or
lubricants will cause severe damage to
your air conditioner system. For additional
information, refer to “Air conditioner sys-
tem refrigerant and oil recommendations”
in the “Technical and consumer informa-
tion” section of this manual.
It is recommended that you visit a NISSAN
dealer to service your “environmentally
friendly” air conditioner system.
WARNING
The air conditioner system contains re-
frigerant under high pressure. To avoid
personal injury, any air conditioner ser-
vice should be done only by an experi-
enced technician with proper
equipment.
RADIO
With the ignition placed in the ACC or ON
position, press the
POWER button to
turn the radio on. If you listen to the radio
with the engine not running, the ignition
should be placed in the ACC position.
Radio reception is affected by station sig-
nal strength, distance from radio transmit-
ter, buildings, bridges, mountains and other
external influences. Intermittent changes
in reception quality normally are caused by
these external influences.
Using a cellular phone in or near the ve-
hicle may influence radio reception qual-
ity.
Radio reception
Your NISSAN radio system is equipped with
state-of-the-art electronic circuits to en-
hance radio reception. These circuits are
designed to extend reception range, and to
enhance the quality of that reception.
However, there are some general charac-
teristics of both FM and AM radio signals
that can affect radio reception quality in a
moving vehicle, even when the finest
equipment is used. These characteristics
are completely normal in a given reception
SERVICING AIR CONDITIONER AUDIO SYSTEM
4-24Monitor, climate, audio, phone and voice recognition systems

When installing a CB, ham radio or car
phone in your vehicle, be sure to observe
the following precautions; otherwise, the
new equipment may adversely affect the
engine control system and other electronic
parts.
WARNING
∙ A cellular phone should not be usedfor any purpose while driving so full
attention may be given to vehicle op-
eration. Some jurisdictions prohibit
the use of cellular phones while
driving.
∙ If you must make a call while your ve- hicle is in motion, the hands free cellu-
lar phone operational mode is highly
recommended. Exercise extreme cau-
tion at all times so full attention may
be given to vehicle operation.
∙ If you are unable to devote full atten- tion to vehicle operation while talking
on the phone, pull off the road to a
safe location and stop your vehicle.
CAUTION
∙ Keep the antenna as far away as pos-sible from the electronic control
modules.
∙ Keep the antenna wire more than 8 in (20 cm) away from the electronic con-
trol system harnesses. Do not route
the antenna wire next to any harness.
∙ Adjust the antenna standing-wave ratio as recommended by the
manufacturer.
∙ Connect the ground wire from the CB radio chassis to the body.
∙ For additional information, it is rec- ommended that you visit a NISSAN
dealer for servicing.
WARNING
∙ Use a phone af ter stopping your ve-hicle in a safe location. If you have to
use a phone while driving, exercise ex-
treme caution at all times so full at-
tention may be given to vehicle
operation.
∙ If you are unable to devote full atten- tion to vehicle operation while talking
on the phone, pull off the road to a
safe location and stop your vehicle.
CAUTION
To avoid discharging the vehicle bat-
tery, use a phone af ter starting the
engine.
CAR PHONE OR CB RADIO BLUETOOTH® HANDS-FREE PHONE
SYSTEM WITHOUT NAVIGATION
SYSTEM (if so equipped)
4-54Monitor, climate, audio, phone and voice recognition systems

5 Starting and driving
Precautions when starting and driving..........5-2
Exhaust gas (carbon monoxide) ..............5-2
Three-way catalyst ...........................5-2
Tire Pressure Monitoring System
(TPMS)........................................5-3
Avoiding collision and rollover ................5-7
Off-roadrecovery ............................5-7
Rapid air pressure loss .......................5-7
Drinking alcohol/drugs and driving ...........5-8
Push-Button Ignition Switch .....................5-9
Operating range ............................. 5-10
Push-button ignition switch positions .......5-10
Emergency engine shut off ...................5-11
NISSAN Intelligent Key® battery
discharge .................................... 5-11
NISSAN Vehicle Immobilizer System .........5-12
Before starting the engine ......................5-12
Starting the engine ............................. 5-13
Remote Engine Start (if so equipped) ........5-14
Driving the vehicle .............................. 5-14
Continuously Variable Transmission
(CVT) ........................................ 5-14
Parking brake .................................. 5-21
Blind Spot Warning (BSW) (if so equipped) .......5-22 BSW system operation
......................5-23
How to enable/disable the BSW system .....5-25
BSW system limitations ......................5-25
BSW driving situations .......................5-26
System temporarily unavailable .............5-30
System maintenance ........................ 5-31
Rear Cross Traffic Alert (RCTA) (if so equipped) . . 5-32 RCTA system operation ......................5-33
How to enable/disable the RCTA
system ...................................... 5-35
RCTA system limitations .....................5-36
System temporarily unavailable .............5-39
System maintenance ........................ 5-40
Cruise control (if so equipped) ..................5-41
Precautions on cruise control ................5-41
Cruise control operations ....................5-42
Intelligent Cruise Control (ICC) (if so equipped) . . 5-43 ICC system operation .......................5-44
The

ICC switch .............................. 5-46
ICC system limitations .......................5-52
System temporarily unavailable .............5-55
System maintenance ........................ 5-57
Automatic Emergency Braking (AEB) ...........5-58

AEB system operation.......................5-59
Turning the AEB system on/off ..............5-61
AEB system limitations ......................5-61
System temporarily unavailable .............5-63
System malfunction ......................... 5-63
System maintenance ........................ 5-64
Intelligent Forward Collision Warning (I-FCW) ....5-65
I-FCW system operation .....................5-67
Turning the I-FCW system on/off ............5-68
I-FCW system limitations ....................5-69
System temporarily unavailable .............5-74
System malfunction ......................... 5-75
System maintenance ........................ 5-75
Break-in schedule .............................. 5-76
Fuel efficient driving tips ........................5-77
Increasing fuel economy .......................5-78
Parking/parking on hills ........................5-79
Power steering ................................. 5-80
Brake system ................................... 5-81
Brake precautions ........................... 5-81Anti-lock Braking System (ABS)
..............5-81
Brake assist ................................. 5-82
Vehicle Dynamic Control (VDC) system .........5-83
Brake force distribution ......................5-85
Hill start assist system .......................... 5-86
Front and Rear Sonar System (if so equipped) . . 5-86 System operation ........................... 5-87
How to enable/disable the sonar
system ...................................... 5-89
Sonar limitations ............................ 5-89
System temporarily unavailable .............5-90
System maintenance ........................ 5-90
Cold weather driving ........................... 5-91
Freeing a frozen door lock ...................5-91
Antifreeze ................................... 5-91
Battery...................................... 5-91
Dr

aining of coolant water ....................5-91
Tire equipment .............................. 5-91
Special winter equipment ...................5-92
Driving on snow or ice .......................5-92
Engine block heater (if so equipped) .........5-92

WARNING
∙ Do not leave children or adults whowould normally require the assis-
tance of others alone in your vehicle.
Pets should also not be lef t alone.
They could accidentally injure them-
selves or others through inadvertent
operation of the vehicle. Also, on hot,
sunny days, temperatures in a closed
vehicle could quickly become high
enough to cause severe or possibly
fatal injuries to people or animals.
∙ Closely supervise children when they are around cars to prevent them from
playing and becoming locked in the
trunk where they could be seriously
injured. Keep the car locked, with the
rear seatback and trunk lid securely
latched when not in use, and prevent
children’s access to car keys.
EXHAUST GAS (carbon monoxide)
WARNING
∙ Do not breathe exhaust gases; theycontain colorless and odorless carbon
monoxide. Carbon monoxide is dan-
gerous. It can cause unconsciousness
or death. ∙ If you suspect that exhaust fumes are
entering the vehicle, drive with all
windows fully open, and have the ve-
hicle inspected immediately.
∙ Do not run the engine in closed spaces such as a garage.
∙ Do not park the vehicle with the en- gine running for any extended length
of time.
∙ Keep the rear vent windows, lif tgates, doors and trunk lids (if so equipped)
closed while driving, otherwise ex-
haust gases could be drawn into the
passenger compartment. If you must
drive with one of these open, follow
these precautions:
1. Open all the windows.
2. Set the
air recirculation but-
ton to off and the fan control dial to
high to circulate the air.
∙ If electrical wiring or other cable con- nections must pass to a trailer
through the seal on the trunk lid or the
body, follow the manufacturer’s rec-
ommendation to prevent carbon
monoxide entry into the vehicle. ∙ The exhaust system and body should
be inspected by a qualified mechanic
whenever:
a. The vehicle is raised for service.
b. You suspect that exhaust fumes are entering into the passenger
compartment.
c. You notice a change in the sound of the exhaust system.
d. You have had an accident involving damage to the exhaust system,
underbody, or rear of the vehicle.
THREE-WAY CATALYST
The three-way catalyst is an emission con-
trol device installed in the exhaust system.
Exhaust gases in the three-way catalyst
are burned at high temperatures to help
reduce pollutants.
WARNING
∙ The exhaust gas and the exhaust sys-tem are very hot. Keep people, ani-
mals or flammable materials away
from the exhaust system
components.
PRECAUTIONS WHEN STARTING AND
DRIVING
5-2Starting and driving

∙ Do not stop or park the vehicle overflammable materials such as dry
grass, waste paper or rags. They may
ignite and cause a fire.
CAUTION
∙ Do not use leaded gasoline. Depositsfrom leaded gasoline will seriously re-
duce the three-way catalyst’s ability
to help reduce exhaust pollutants.
∙ Keep your engine tuned up. Malfunc- tions in the ignition, fuel injection, or
electrical systems can cause overrich
fuel flow into the three-way catalyst,
causing it to overheat. Do not keep
driving if the engine misfires, or if no-
ticeable loss of performance or other
unusual operating conditions are de-
tected. Have the vehicle inspected
promptly. It is recommended that you
visit a NISSAN dealer for this service.
∙ Avoid driving with an extremely low fuel level. Running out of fuel could
cause the engine to misfire, damag-
ing the three-way catalyst.
∙ Do not race the engine while warming it up. ∙ Do not push or tow your vehicle to
start the engine.
TIRE PRESSURE MONITORING
SYSTEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your vehicle
has been equipped with a Tire Pressure
Monitoring System (TPMS) that illuminates
a low tire pressure telltale when one or
more of your tires is significantly under-
inflated. Accordingly, when the low tire
pressure telltale illuminates, you should
stop and check all 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 may affect the vehicle’s handling and
stopping ability. Please note that the TPMS is not a substi-
tute for proper tire maintenance, and it is
the driver’s responsibility to maintain cor-
rect tire pressure, even if under-inflation
has not reached the level to trigger illumi-
nation of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction,
the telltale will flash for approximately one
minute and then remain continuously illu-
minated. This sequence will continue upon
subsequent vehicle start-ups as long as
the malfunction exists. When the malfunc-
tion indicator is illuminated, the system
may not be able to detect or signal low tire
pressure as intended. TPMS malfunctions
may occur for a variety of reasons, includ-
ing the installation of replacement or alter-
nate tires or wheels on the vehicle that
prevent the TPMS from functioning prop-
erly. Always check the TPMS malfunction
telltale af ter replacing one or more tires or
wheels on your vehicle to ensure that the
replacement or alternate tires and wheels
allow the TPMS to continue to function
properly.
Starting and driving5-3