2019 NISSAN ALTIMA service

∙ 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 the previous climate setting
was turned off. This is not a malfunction.
Af ter the initial warm air is expelled, the
intake will return to automatic control,
the air flow outlet will return to previous
settings, and operation will continue
normally. To exit, press any climate con-
trol button. ∙ Keep the moonroof (if so equipped)
closed while the air conditioner is in op-
eration.
∙ If you feel that the air flow mode you have 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 foot out-
lets for just a moment. This is not a
malfunction. 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.
SERVICING AIR CONDITIONER
Monitor, climate, audio, phone and voice recognition systems4-41

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, animals
or flammable materials away from the
exhaust system components.
PRECAUTIONS WHEN STARTING AND
DRIVING
5-4Starting 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 your tires as soon as pos-
sible, and inflate them to the proper pres-
sure. 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 driving5-5

Help prevent rapid air pressure loss by
maintaining the correct air pressure and
visually inspecting the tires for wear and
damage. For additional information, refer
to “Wheels and tires” in the “Do-it-yourself ”
section of this manual. If a tire rapidly loses
air pressure or “blows-out” while driving,
maintain control of the vehicle by following
the procedure below. Please note that this
procedure is only a general guide. The ve-
hicle must be driven as appropriate based
on the conditions of the vehicle, road and
traffic.
WARNING
The following actions can increase the
chance of losing control of the vehicle if
there is a sudden loss of tire air pres-
sure. Losing control of the vehicle may
cause a collision and result in personal
injury.
∙ The vehicle generally moves or pullsin the direction of the flat tire.
∙ Do not rapidly apply the brakes.
∙ Do not rapidly release the accelerator pedal.
∙ Do not rapidly turn the steering wheel. 1. Remain calm and do not overreact.
2. Maintain a firm grip on the steering
wheel with both hands and try to hold a
straight course.
3. When appropriate, slowly release the accelerator pedal to gradually slow the
vehicle.
4. Gradually steer the vehicle to a safe location off the road and away from
traffic if possible.
5. Lightly apply the brake pedal to gradu- ally stop the vehicle.
6. Turn on the hazard warning flashers and contact a roadside emergency
service to change the tire. For addi-
tional information, refer to “Changing a
flat tire” in the “In case of emergency”
section of this manual.
DRINKING ALCOHOL/DRUGS AND
DRIVING
WARNING
Never drive under the influence of alco-
hol or drugs. Alcohol in the bloodstream
reduces coordination, delays reaction
time and impairs judgement. Driving
af ter drinking alcohol increases the
likelihood of being involved in an acci-
dent injuring yourself and others. Addi-
tionally, if you are injured in an accident,
alcohol can increase the severity of the
injury.
NISSAN is committed to safe driving. How-
ever, you must choose not to drive under the
influence of alcohol. Every year thousands of
people are injured or killed in alcohol-related
collisions. Although the local laws vary on
what is considered to be legally intoxicated,
the fact is that alcohol affects all people dif-
ferently and most people underestimate the
effects of alcohol.
Remember, drinking and driving don’t mix!
That is true for drugs (over-the-counter,
prescription) and illegal drugs, too. Don’t
drive if your ability to operate your vehicle is
impaired by alcohol, drugs, or some other
physical condition.
5-10Starting and driving

∙In the manual shif t mode, the trans-
mission may not shif t to the selected
gear. This helps maintain driving per-
formance and reduces the chance of
vehicle damage or loss of control.
∙ In the manual shif t mode, the trans-
mission may shif t up automatically to
a higher range than selected if the
engine speed is too high. When the
vehicle speed decreases, the trans-
mission automatically shif ts down
and shif ts to 1st gear before the ve-
hicle comes to a stop.
∙ Continuously Variable Transmission (CVT) operation is limited to automatic
drive mode when CVT fluid tempera-
ture is extremely low even if manual
shif t mode is selected. This is not a mal-
function. When CVT fluid warms up,
manual mode can be selected.
∙ When the CVT fluid temperature is high, the shif t range may upshif t in lower
rpm than usual. This is not a malfunc-
tion.
Shif t lock release
If the battery charge is low or discharged,
the shif t lever may not be moved from the
P (Park) position even with the brake pedal
depressed and the shif t lever button
pressed.
It will be necessary to jump start or have
your battery charged. For additional infor-
mation, refer to “Jump starting” in the “In
case of emergency” section of this manual.
Contact a NISSAN dealer or a professional
towing service. To move the shif t lever, complete the fol-
lowing procedure:
1. Push the ignition switch to the LOCK position.
2. Apply the parking brake.
3. Using a protective cloth on the tip of a 3 mm screwdriver, remove the shif t
lock release cover.
∙ If available, a plastic trim tool can also be used.
4. Insert the small screwdriver in the shif t lock release slot and push down.
5. Move the shif t lever to the N (Neutral) position while holding down the shif t
lock release.
If the shif t lever cannot be moved out of P
(Park), have the transmission checked as
soon as possible. It is recommended that
you visit a NISSAN dealer for this service.
LSD2644
Starting and driving5-23

Fail-safe
If the vehicle is driven under extreme
conditions, such as excessive wheel
spinning and subsequent hard braking,
the fail-safe system may be activated.
The Malfunction Indicator Light (MIL)
may come on to indicate the fail-safe
mode is activated. For additional infor-
mation, refer to “Malfunction Indicator
Light (MIL)” in the “Instruments and con-
trols” section of this manual. This will oc-
cur even if all electrical circuits are func-
tioning properly. In this case, place the
ignition switch in the OFF position and
wait for 10 seconds. Then push the
switch back to the ON position. The ve-
hicle should return to its normal operat-
ing condition. If it does not return to its
normal operating condition, have the
transmission checked. It is recom-
mended that you visit a NISSAN dealer
for this service.
WARNING
When the high fluid temperature pro-
tection mode or fail-safe operation oc-
curs, vehicle speed may be gradually re-
duced. The reduced speed may be lower
than other traffic, which could increase
the chance of a collision. Be especially
careful when driving. If necessary, pull
to the side of the road at a safe place
and allow the transmission to return to
normal operation, or have it repaired if
necessary.
WARNING
∙ Be sure the parking brake is fully re-leased before driving. Failure to do so
can cause brake failure and lead to an
accident.
∙ Do not release the parking brake from outside the vehicle.
∙ Do not use the shif t lever in place of the parking brake. When parking, be
sure the parking brake is fully
engaged.
∙ To help avoid risk of injury or death through unintended operation of the
vehicle and/or its systems, do not
leave children, people who require the
assistance of others or pets unat-
tended in your vehicle. Additionally,
the temperature inside a closed ve-
hicle on a warm day can quickly be-
come high enough to cause a signifi-
cant risk of injury or death to people
and pets.
PARKING BRAKE
Starting and driving5-25

∙While pulling up the electronic park-
ing brake switch during driving, the
parking brake is applied and a chime
sounds. The electronic parking brake
indicator light in the meter and in the
parking brake switch illuminates.
This does not indicate a malfunction.
The electronic parking brake indica-
tor light in the meter and in the park-
ing brake switch turns off when the
parking brake is released.
∙ When pulling the electronic parking
brake switch up with the ignition
switch in the OFF or AUTO ACC posi-
tion, the parking brake switch indica-
tor light will continue to illuminate for
a short period of time. The automatic brake hold function main-
tains the braking force without the driver
having to depress the brake pedal when
the vehicle is stopped at a traffic light or
intersection. As soon as the driver de-
presses the accelerator pedal again, the
automatic brake hold function is deacti-
vated and the braking force is released. The
operating status of the automatic brake
hold can be displayed on the vehicle infor-
mation display.
WARNING
∙ The automatic brake hold function is
not designed to hold the vehicle on a
steep hill or slippery road. Never use
the automatic brake hold when the
vehicle is stopped on a steep hill or
slippery road. Failure to do so may
cause the vehicle to move.
∙ When the automatic brake hold func- tion is activated but fails to maintain
the vehicle at a standstill, depress the
brake pedal to stop the vehicle. If the
vehicle unexpectedly moves due to
outside conditions, the chime may
sound and automatic brake hold
warning may illuminate in the vehicle
information display. ∙ Be sure to deactivate the automatic
brake hold function when using a car
wash or towing your vehicle.
∙ Make sure to place the shif t lever in the P (Park) position and apply the
parking brake when parking your ve-
hicle or loading luggage. Failure to do
so could cause the vehicle to move or
roll away unexpectedly and result in
serious personal injury or property
damage.
∙ If any of the following conditions oc- cur, the automatic brake hold function
may not function. Have the system
checked promptly. It is recommended
that you visit a NISSAN dealer for this
service. Failure to operate the vehicle
in accordance with these conditions
could cause the vehicle to move or roll
away unexpectedly and result in seri-
ous personal injury or property
damage.
– A warning message appears in the vehicle information display.
– The indicator light on the auto- matic brake hold switch does not
illuminate when the switch is
pushed.
AUTOMATIC BRAKE HOLD (if so
equipped)
5-28Starting and driving

– In areas not covered by the naviga-tion system.
– If there are deviations in relation to the navigation, for example due to
changes in the road routing.
– When overtaking buses or trucks with speed stickers.
TURNING THE TRAFFIC SIGN
RECOGNITION (TSR) SYSTEM ON
AND OFF
Perform the following steps to enable or
disable the TSR system.
1. Press the
button until “Settings”
displays in the vehicle information dis-
play. Use the
button to select
“Driver Assistance.” Then press the OK
button.
2. Select “Speed Limit Sign” and press the OK button to turn the system on or off.
SYSTEM TEMPORARILY
UNAVAILABLE
If the vehicle is parked in direct sunlight un-
der high temperature conditions (over ap-
proximately 104°F [40°C]) and then started,
the TSR system may be deactivated auto-
matically. The “Unavailable: High Camera
Temperature” warning message will appear
in the vehicle information display.
Action to take:
When the interior temperature is reduced,
the TSR system will resume operating au-
tomatically.
SYSTEM MALFUNCTION
If the TSR system malfunctions, it will be
turned off automatically and the system
“Malfunction” warning message will appear
in the vehicle information display.
Action to take:
If the TSR “Malfunction” message appears,
pull of the road at a safe location and stop
the vehicle. Turn the engine off and restart
the engine. If the TSR “Malfunction” mes-
sage continues to appear, have the system
checked. It is recommended that you visit a
NISSAN dealer for this service.
LSD3243
Starting and driving5-33