2018 NISSAN ALTIMA check engine

TROUBLESHOOTING GUIDE
Verif y the location of all Intelligent Keys that
are programmed for the vehicle. If another
Intelligent Key is in range or inside the ve-
hicle, the vehicle system may respond dif-
ferently than expected.
SymptomPossible CauseRemedy
When stopping the engine The Shif t to Park warning appears in
the display and the inside warning
chime sounds continuously. The shif t lever is not in the P (Park)
position.Move the shif t lever to the P (Park)
position.
When opening the driver’s door to get
out of the vehicle The Door Open warning appears in
the display and the inside warning
chime sounds continuously. The ignition switch is in the ACC
position.
Place the ignition switch in the OFF
position.
When closing the door af ter getting
out of the vehicle The No Key Detected warning appears
in the display, the outside chime
sounds three times and the inside
warning chime sounds for approxi-
mately 3 seconds.
The ignition switch is in the ACC or ON
position.
Place the ignition switch in the OFF
position.
The Shif t to Park warning appears in
the display and the outside chime
sounds continuously. The ignition switch is in the ACC posi-
tion and the shif t lever is not in the P
(Park) position.Move the shif t lever to the P (Park) po-
sition and place the ignition switch in
the OFF position.
When closing the door with the inside
lock knob turned to LOCK The outside chime sounds for approxi-
mately 3 seconds and all the doors
unlock.
The Intelligent Key is inside the vehicle. Carry the Intelligent Key with you.
When pushing the door handle re-
quest switch or the
button
on the Intelligent Key to lock the door The outside chime sounds for approxi-
mately 2 seconds.
The Intelligent Key is inside the vehicle. Carry the Intelligent Key with you.
3-18Pre-driving checks and adjustments

SymptomPossible CauseRemedy
When pushing the ignition switch to
start the engine The Key Battery Low indicator appears
in the display.
The battery charge is low.Replace the battery with a new one.
For additional information, refer to
“Battery replacement” in the “Do-it-
yourself ” section of this manual.
The KEY ID Incorrect warning appears
in the display, the outside chime
sounds three times and the inside
warning chime sounds for approxi-
mately 3 seconds. The Intelligent Key is not in the vehicle. Carry the Intelligent Key with you.
When pressing the ignition switch The Intelligent Key system warning
light in the meter illuminates in yellow. It warns of a malfunction with the In-
telligent Key system.It is recommended that you visit a
NISSAN dealer.
Pre-driving checks and adjustments3-19

Thebutton will be on the NISSAN In-
telligent Key® if the vehicle has Remote En-
gine Start. This feature allows the engine to
start from outside the vehicle.
The following features may be affected
when Remote Engine Start is used:
∙ Vehicles with a manual climate control system will default to the last used
heating or cooling mode. ∙ Vehicles with an automatic climate
control system will default to either a
heating or cooling mode depending on
outside and cabin temperatures. For
additional information, refer to “Remote
Engine Start with Intelligent Climate
Control” in the “Monitor, climate, audio,
phone and voice recognition systems”
section of the manual.
Laws in some local communities may re-
strict the use of remote starters. For ex-
ample, some laws require a person using
Remote Engine Start to have the vehicle in
view. Check local regulations for any re-
quirements.
Other conditions may affect the function of
the Remote Engine Start feature. For addi-
tional information, refer to “Conditions the
Remote Engine Start will not work” in this
section.
Other conditions can affect the perfor-
mance of the Intelligent Key transmitter.
For additional information, refer to “NISSAN
Intelligent Key®” in this section.
REMOTE ENGINE START
OPERATING RANGE
WARNING
To help avoid risk of injury or death
through unintended operation of the
vehicle and/or its systems, including
entrapment in windows or inadvertent
door lock activation, do not leave chil-
dren, people who require the assistance
of others or pets unattended in your ve-
hicle. Additionally, the temperature in-
side a closed vehicle on a warm day can
quickly become high enough to cause a
significant risk of injury or death to
people and pets.
CAUTION
When the Intelligent Key battery is dis-
charged or other strong radio wave
sources are present near the operating
location, the Intelligent Key operating
range becomes narrower, and the Intel-
ligent Key may not function properly.
The Remote Engine Start function can only
be used when the Intelligent Key is within
the specified operating range from the ve-
hicle.
LPD2078
REMOTE ENGINE START (if so
equipped)
3-20Pre-driving checks and adjustments

The Remote Engine Start operating range
is approximately 197 f t (60 m) from the ve-
hicle.
REMOTE STARTING THE VEHICLE
To use the Remote Engine Start feature to
start the engine perform the following:1. Aim the Intelligent Key at the vehicle.
2. Press the
button to lock all
doors.
3. Within 5 seconds press and hold the
button until the turn signal
lights flash and the tail lamps turn on. If
the vehicle is not within view press and
hold the
button for at least 2 sec-
onds.
The following events will occur when the
engine starts:
∙ The parking lights will turn on and re- main on as long as the engine is run-
ning.
∙ The doors will be locked and the climate control system may come on. ∙ The engine will continue to run for
10 minutes. Repeat the steps to extend
the time for an additional 10 minutes.
For additional information, refer to “Ex-
tending engine run time” in this section.
Depress and hold the brake then push the
push-button ignition switch to the ON po-
sition before driving. For additional infor-
mation, refer to “Driving the vehicle” in the
“Starting and driving” section of this
manual.
EXTENDING ENGINE RUN TIME
The Remote Engine Start feature can be
extended one time by performing the
steps listed in “Remote starting the vehicle”
in this section. Run time will be calculated
as follows: ∙ The first 10 minute run time will start when the Remote Engine Start function
is performed.
∙ The second 10 minutes will start imme- diately when the Remote Engine Start
function is performed again. For ex-
ample, if the engine has been running
for 5 minutes, and 10 minutes are
added, the engine will run for a total of
15 minutes. ∙ Extending engine run time will count to-
wards the two Remote Engine Start
limit.
A maximum of two Remote Engine Starts,
or a single Remote Engine Start with an
extension, are allowed between ignition
cycles. The ignition switch must be cycled
to the ON position and then back to the
OFF position before the Remote Engine
Start procedure can be used again.
CANCELING A REMOTE ENGINE
START
To cancel a Remote Engine Start, perform
one of the following: ∙ Aim the Intelligent Key at the vehicle and press
until the parking lights
turn off.
∙ Turn on the hazard warning flashers.
∙ Cycle the ignition switch ON and then OFF.
∙ The extended engine run time has ex- pired.
∙ The first 10 minute timer has expired.
∙ The engine hood has been opened.
∙ The shif t lever is moved out of park.
Pre-driving checks and adjustments3-21

∙ The alarm sounds due to illegal entryinto the vehicle.
∙ The ignition switch is pushed without an Intelligent Key in the vehicle.
∙ The ignition switch is pushed with an Intelligent Key in the vehicle but the
brake pedal is not depressed.
CONDITIONS THE REMOTE ENGINE
START WILL NOT WORK
The Remote Engine Start will not operate if
any of the following conditions are present:
∙ The ignition switch is placed in the ON position.
∙ The hood is not securely closed.
∙ The hazard indicator lights are on.
∙ The engine is still running. The engine must be completely stopped. Wait at
least 6 seconds if the engine goes from
running to off. This is not applicable
when extending engine run time.
∙ The
button is not pressed and
held for at least 2 seconds. ∙ The
button is not pressed and
held within 5 seconds of pressing the
lock button.
∙ The brake is pressed.
∙ The doors are not closed and locked.
∙ The trunk is open.
∙ The I–Key Indicator Light remains solid in the vehicle information display.
∙ The alarm sounds due to illegal entry into the vehicle.
∙ Two Remote Engine Starts, or a single Remote Engine Start with an extension,
have already been used.
∙ The vehicle is not in P (Park).
∙ There is a detected registered key al- ready inside of the vehicle.
∙ The Remote Engine Start function has been switched to the OFF position in
Vehicle Settings of the vehicle informa-
tion display. For additional information,
refer to “Vehicle information display” in
the “Instruments and controls” section
of this manual. The Remote Engine Start may display a
warning or indicator in the vehicle informa-
tion display. For additional information, re-
fer to “Vehicle information display” in the
“Instruments and controls” section of this
manual.
3-22Pre-driving checks and adjustments

1. Pull the hood lock release handle1
located below the driver’s side instru-
ment panel; the hood springs up
slightly.
2. To open the hood, push the lever
2
underneath the front of the hood to the
side with your fingertips as illustrated
and raise the hood.
3. Remove the support rod from the clamp
3.
4. Insert the support rod
4into the slot
on the passenger side of the hood. 5. When closing the hood, return the sup-
port rod to its original position, lower
the hood to approximately 12 in (30 cm)
above the latch and release it. This al-
lows proper engagement of the hood
latch.
WARNING
∙ Make sure the hood is completelyclosed and latched before driving. The
vehicle should only ever be operated
with the hood securely closed.
∙ If you see steam or smoke coming from the engine compartment, to
avoid injury do not open the hood.
LPD2778
HOOD
Pre-driving checks and adjustments3-23

WARNING
∙ Never allow anyone to ride in thecargo area or on the rear seat when it
is in the fold-down position. Use of
these areas by passengers without
proper restraints could result in seri-
ous injury or death in an accident or
sudden stop.
∙ Properly secure all cargo with ropes or straps to help prevent it from sliding
or shif ting. Do not place cargo higher
than the seatbacks. In a sudden stop
or collision, unsecured cargo could
cause personal injury.
∙ When returning the seatbacks to the upright position, be certain they are
completely secured in the latched po-
sition. If they are not completely se-
cured, passengers may be injured in
an accident or sudden stop.
∙ 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.
OPENER OPERATION
The fuel-filler door release is located below
the instrument panel. To open the fuel-filler
door, pull the release. To lock, close the fuel-
filler door securely.
FUEL-FILLER CAP
WARNING
∙ Gasoline is extremely flammable andhighly explosive under certain condi-
tions. You could be burned or seri-
ously injured if it is misused or mis-
handled. Always stop the engine and
do not smoke or allow open flames or
sparks near the vehicle when
refueling.
∙ Do not attempt to top off the fuel tank af ter the fuel pump nozzle shuts off
automatically. Continued refueling
may cause fuel overflow, resulting in
fuel spray and possibly a fire.
∙ Use only an original equipment type fuel-filler cap as a replacement. It has
a built-in safety valve needed for
proper operation of the fuel system
and emission control system. An in-
correct cap can result in a serious mal-
function and possible injury. It could
also cause the
Malfunction Indi-
cator Light (MIL) to come on.
∙ Never pour fuel into the throttle body to attempt to start your vehicle.
LPD2647
FUEL-FILLER DOOR
3-26Pre-driving checks and adjustments

∙ 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