2019 NISSAN ALTIMA heater

Start the engine and operate the controls
to activate the air conditioner.
NOTE:∙ Odors from inside and outside the ve-
hicle can build up in the air condi-
tioner unit. Odor can enter the pas-
senger compartment through the
vents.
∙ When parking, set the heater and air
conditioner controls to turn off air re-
circulation to allow fresh air into the
passenger compartment. This should
help reduce odors inside the vehicle.
AUTOMATIC OPERATION
Cooling and/or dehumidified
heating (AUTO)
This mode may be used all year round as
the system automatically works to keep a
constant temperature. Air flow distribution,
air intake control, and fan speed are also
controlled automatically.
1. Press the AUTO button on.
2. Turn the temperature control dial to the lef t or right to set the desired tem-
perature. ∙ Adjust the temperature display to
about 75°F (24°C) for normal operation.
∙ The temperature of the passenger compartment will be maintained auto-
matically. Air flow distribution, air intake
control and fan speed are also con-
trolled automatically.
∙ A visible mist may be seen coming from the vents in hot, humid conditions as
the air is cooled rapidly. This does not
indicate a malfunction.
3. You can individually set driver’s and front passenger’s side temperature us-
ing each temperature control dial. To
synchronize the driver’s and front pas-
senger’s temperature settings, press
the SYNC button.
Heating (A/C OFF)
The air conditioner does not activate. When
you need to heat only, use this mode.
1. Press the AUTO button.
2. Turn the temperature control dial to set the desired temperature.
∙ The temperature of the passenger compartment will be maintained auto-
matically. Air flow distribution and fan
speed are also controlled automatically. ∙ Do not set the temperature lower than
the outside air temperature. Otherwise,
the system may not work properly.
∙ Not recommended if windows fog up.
Dehumidified defrosting or
defogging
1. Press thefront defroster button
on.
2. Turn the temperature control dial to set the desired temperature.
∙ To quickly remove ice from the outside of the windows, use the
fan speed
control buttons to set the fan speed to
maximum.
∙ As soon as possible af ter the wind- shield is clean, press the AUTO button to
return to the automatic mode.
∙ When the
front 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.
4-38Monitor, climate, audio, phone and voice recognition systems

All-Wheel Drive (AWD) (if so equipped)..........5-166
Parking/parking on hills .......................5-168
Power steering ................................ 5-169
Brake system .................................. 5-170
Brake precautions .......................... 5-170
Anti-lock Braking System (ABS) ..............5-171
Brake Assist ................................ 5-172
Vehicle Dynamic Control (VDC) system ........5-172
Brake force distribution .....................5-174
Chassis Control ............................... 5-175
Intelligent Trace Control (I-TC) ...............5-175
Active Ride Control (ARC) ...................5-175
Hill start assist system ......................... 5-176
Rear Sonar System (RSS) (if so equipped) ......5-176
System operation .......................... 5-177
How to enable/disable the sonar
system ..................................... 5-179Sonar limitations
........................... 5-180
System temporarily unavailable ............5-180
System maintenance ....................... 5-181
Cold weather driving .......................... 5-181
Freeing a frozen door lock ..................5-181
Antifreeze .................................. 5-181
Battery..................................... 5-181
Draining of coolant water ...................5-182
Tire equipment ............................. 5-182
Special winter equipment ..................5-182
Driving on snow or ice ......................5-182
Engine block heater (if so equipped) ........5-183
Active noise cancellation/Active sound
enhancement (if so equipped) .................5-184
Active noise cancellation ...................5-184
Active sound enhancement ................5-184

∙ Do not use the cruise control on slip-pery roads.
∙ Snow can trap dangerous exhaust gases under your vehicle. Keep snow
clear of the exhaust pipe and from
around your vehicle.
ENGINE BLOCK HEATER (if so
equipped)
Engine block heaters are used to assist
with cold temperature starting.
The engine block heater should be used
when the outside temperature is 20°F (-7°C)
or lower.
WARNING
∙ Do not use your engine block heaterwith an ungrounded electrical system
or a 2-pronged adapter. You can be
seriously injured by an electrical
shock if you use an ungrounded
connection.
∙ Disconnect and properly store the en- gine block heater cord before starting
the engine. Damage to the cord could
result in an electrical shock and can
cause serious injury. ∙ Use a heavy-duty 3-wire, 3-pronged
extension cord rated for at least 10 A.
Plug the extension cord into a Ground
Fault Interrupt (GFI) protected,
grounded 110-VAC outlet. Failure to
use the proper extension cord or a
grounded outlet can result in a fire or
electrical shock and cause serious
personal injury.
To use the engine block heater: 1. Turn the engine off.
2. Open the hood and unwrap the engine block heater cord.
3. Plug the engine block heater cord into a grounded 3-wire, 3-pronged exten-
sion cord.
4. Plug the extension cord into a Ground Fault Interrupt (GFI) protected,
grounded 110-volt AC (VAC) outlet.
5. The engine block heater must be plugged in for at least 2–4 hours, de-
pending on outside temperatures, to
properly warm the engine coolant. Use
an appropriate timer to turn the engine
block heater on. 6. Before starting the engine, unplug and
properly store the cord to keep it away
from moving parts.
Starting and driving5-183

WARNING
Always follow the instructions below.
Failure to do so could result in damage
to the charging system and cause per-
sonal injury.1. If the booster battery is in another ve- hicle, position the two vehicles to bring
their batteries near each other.
Do not allow the two vehicles to
touch. 2. Apply the parking brake. Move the shif t
lever to P (Park). Switch off all unneces-
sary electrical systems (lights, heater,
air conditioner, etc.).
3. Place the ignition switch in the LOCK position.
4. Connect the jumper cables in the se- quence illustrated (
A,B,C,D).
CAUTION
∙ Always connect positive () to posi-tive ( ) and negative () to body
ground (for example, strut mounting
bolt, engine lif t bracket, etc.) — not to
the battery.
∙ Make sure the jumper cables do not touch moving parts in the engine
compartment and that the cable
clamps do not contact any other
metal.
5. Start the engine of the booster vehicle and let it run for a few minutes.
6. Keep the engine speed of the booster vehicle at about 2,000 rpm and start
the engine of the vehicle being jump
started.
CAUTION
Do not keep the starter motor engaged
for more than 10 seconds. If the engine
does not start right away, place the ig-
nition switch in the OFF position and
wait 3 to 4 seconds before trying again.
7. Af ter starting the engine, carefully dis- connect the negative cable and then
the positive cable.
LCE2223
6-10In case of emergency

CAUTION
∙ Do not push start this vehicle. Thethree-way catalyst may be damaged.
∙ Continuously Variable Transmission (CVT) models cannot be push-started
or tow-started. Attempting to do so
may cause transmission damage. If your vehicle is overheating (indicated by
an extremely high temperature gauge
reading), or if you feel a lack of engine
power, detect abnormal noise, etc. take the
following steps.
WARNING
∙ Do not continue to drive if your vehicle
overheats. Doing so could cause en-
gine damage or a vehicle fire.
∙ To avoid the danger of being scalded, never remove the radiator cap while
the engine is still hot. When the radia-
tor cap is removed, pressurized hot
water will spurt out, possibly causing
serious injury.
∙ Do not open the hood if steam is com- ing out.
1. Move the vehicle safely off the road, ap- ply the parking brake and move the
shif t lever to P (Park).
Do not stop the engine.
2.
Turn off the air conditioner. Open all the
windows, move the heater or air condi-
tioner temperature control to maximum
hot and fan control to high speed.
3. Get out of the vehicle. Look and listen for steam or coolant escaping from the
radiator before opening the hood. (If
steam or coolant is escaping, turn off
the engine.) Do not open the hood fur-
ther until no steam or coolant can be
seen.
4. Open the engine hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
5. Visually check drive belts for damage or looseness. Also check if the cooling
fan is running. The radiator hoses and
radiator should not leak water. If cool-
ant is leaking, the water pump belt is
missing or loose, or the cooling fan
does not run, stop the engine.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or
the engine cooling fan. The engine cool-
ing fan can start at any time.
PUSH STARTING IF YOUR VEHICLE OVERHEATS
In case of emergency6-11

CHECKING ENGINE COOLANT
LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below the MIN level
B, add coolant
to the MAX level
A.
If the reservoir is empty, check the coolant
level in the radiator when the engine is
cold. If there is insufficient coolant in the
radiator, fill the radiator with coolant up to
the filler opening and also add it to the
reservoir up to the MAX level
A. Start the
engine and allow the engine coolant tem-
perature gauge to rise until it reaches nor- mal operating temperature. For additional
information, refer to “Engine coolant tem-
perature gauge” in the “Instruments and
controls” section of this manual. Turn off
the engine once the engine coolant tem-
perature has reached normal operating
range. Allow the engine coolant to cool to
ambient temperature. Recheck the cool-
ant level in the reservoir and add coolant to
the MAX level if necessary.
This vehicle contains Genuine NISSAN Long
Life Antifreeze/Coolant (blue). The life ex-
pectancy of the factory-fill coolant is
105,000 miles (168,000 km) or 7 years. Mixing
any other type of coolant or the use of
non-distilled water will reduce the life ex-
pectancy of the factory-fill coolant. For ad-
ditional information, refer to the "Mainte-
nance and schedules" section of this
manual.
For additional information on the location
of the engine coolant reservoir, refer to “En-
gine compartment check locations” in this
section.
If the cooling system frequently requires
coolant, have it checked. It is recom-
mended that you visit a NISSAN dealer
for this service.
CHANGING ENGINE COOLANT
A NISSAN dealer can change the engine
coolant. The service procedure can be
found in the NISSAN Service Manual.
Improper servicing can result in reduced
heater performance and engine over-
heating.
WARNING
∙ To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
∙ Never remove the radiator cap when the engine is hot. Serious burns could
be caused by high pressure fluid es-
caping from the radiator.
∙ Avoid direct skin contact with used coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
∙ Keep coolant out of the reach of chil- dren and pets.
Engine coolant must be disposed of prop-
erly. Check your local regulations.
LDI3262
Do-it-yourself8-7

Inside the vehicle
The maintenance items listed here should
be checked on a regular basis, such as
when performing scheduled maintenance,
cleaning the vehicle, etc.
Accelerator pedal:Check the pedal for
smooth operation and make sure the
pedal does not catch or require uneven
effort. Keep the floor mat away from the
pedal.
Brake pedal: Check the pedal for smooth
operation. If the brake pedal suddenly goes
down further than normal, the pedal feels
spongy or the vehicle seems to take longer
to stop, have your vehicle checked imme-
diately. It is recommended that you visit a
NISSAN dealer for this service. Keep the
floor mat away from the pedal.
Brakes: Check that the brakes do not pull
the vehicle to one side when applied.
Continuously Variable Transmission
(CVT) P (Park) position mechanism: On a
fairly steep hill check that the vehicle is held
securely with the shif t lever in the P (Park)
position without applying any brakes.
Parking brake: Check the parking brake
operation regularly. The vehicle should be
securely held on a fairly steep hill with only the parking brake applied. If the parking
brake needs adjustment, it is recom-
mended that you visit a NISSAN dealer for
this service.
Seats:
Check seat position controls such
as seat adjusters, seatback recliner, etc., to
ensure they operate smoothly and all
latches lock securely in every position.
Check that the head restraints/headrests
move up and down smoothly and the locks
(if so equipped) hold securely in all latched
positions.
Seat belts: Check that all parts of the seat
belt system (for example, buckles, anchors,
adjusters and retractors) operate properly
and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying,
wear or damage.
Steering wheel: Check for changes in the
steering system, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure all
warning lights and chimes are operating
properly.
Windshield defroster: Check that the air
comes out of the defroster outlets properly
and in sufficient quantity when operating
the heater or air conditioner. Windshield wiper and washer*:
Check
that the wipers and washer operate prop-
erly and that the wipers do not streak.
Under the hood and vehicle
The maintenance items listed here should
be checked periodically (for example, each
time you check the engine oil or refuel).
Battery*: This vehicle is equipped with a
sealed maintenance free battery. It is rec-
ommended that you visit a NISSAN dealer
for service.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of elec-
tronic accessories that consume bat-
tery power when the engine is not
running (Phone chargers, GPS, DVD
players, etc.).
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to
be charged to maintain battery health.
9-4Maintenance and schedules

11 Index
A
Active noise cancellation Active sound
enhancement ..........5-184,5-184
ActiveRideControl(ARC)..........5-175
Air bag (See supplemental restraint
system) .................... .1-46
Air bag system Front (See supplemental front impact
airbagsystem)..............1-53
Airbagwarninglight..........1-66, 2-15
Air bag warning light,
supplemental ..............1-66, 2-15
Air cleaner housing filter ..........8-19
Air conditioner Air conditioner operation ....4-32,4-38
Air conditioner specification label . .10-12
Air conditioner system refrigerant
and oil recommendations .......10-7
Air conditioner system refrigerant
recommendations ............10-7
Heater and air conditioner
controls...............4-29,4-38
Servicing air conditioner ........4-41
Air flow charts .................4-33
Alarm system
(See vehicle security system) .......2-39
All-Wheel Drive .............5-166,6-14
Anchor point locations ...........1-28
Antenna ....................4-42
Antifreeze ...................5-181 Anti-lock brake warning light
........2-10
Anti-lock Braking System (ABS) ......5-171
Armrests.................... .1-7
Audible reminders ..............2-18
Autolightswitch ...............2-44
Automatic Automatic drive
positioner ...........3-33,3-34,3-35
Automatic power window switch . . .2-61
Automatic anti-glare inside mirror . . . .3-32
Automaticbrakehold............5-28
Automatic door locks .............3-7
Automatic drive positioner . .3-33, 3-34, 3-35
Automatic Emergency Braking
(AEB) ................2-10,2-14,5-130
Automatic Emergency Braking (AEB) with
Pedestrian Detection ............5-139
AWD...................5-166,6-14
B
Battery .................5-181,8-15 Charge warning light ...........2-11
Battery replacement ............8-24
Keyfob...................8-24
NISSAN Intelligent Key® .........8-25
Before starting the engine .........5-16
Belt(Seedrivebelt)..............8-17
Blind Spot Warning (BSW) ..........5-45
Booster seats .................1-42
Brake Anti-lock Braking System (ABS) ....5-171 Brakefluid.................8-13
Brakelight(Seestoplight).......8-27
Brakesystem...............5
-170
Brakewarninglight............2-11
Brakewearindicators.......2-18,8-21
Parking brake operation ........5-25
Self-adjustingbrakes ..........8-21
Brake Assist ..................5-172
Brakefluid...................8-13
Brakes......................8-21
Brakesystem.................5 -170
Break-in schedule ..............5-164
Brightness control Instrument panel .............2-49
Bulb check/instrument panel .......2-10
Bulb replacement ..............8-27
C
Capacities and recommended
fuel/lubricants.................10-2
Ca
rgo
(See vehicle loading information) .....10-13
Car phone or CB radio ...........4-42
Chassis control ...............5 -175
Check tire pressure .............2-34
Childrestraints.......1-21, 1-22, 1-23, 1-26 LATCH (Lower Anchors and Tethers for
CHildren)System.............1-26
Precautions on child
restraints.........1-23, 1-31, 1-38, 1-43