fuel pressure NISSAN ALTIMA 2019 Owner´s Manual

VARIABLE COMPRESSION TURBO
(if so equipped)
Your engine is equipped with a variable
compression ratio system called “Variable
Compression Turbo”. This system can vary
the engine compression ratio continu-
ously.
According to driving conditions, the system
applies optimum compression ratio auto-
matically to achieve both high output and
high fuel economy efficiency.This is not a physical gauge. It is a display
option in the vehicle information display
that can be selected. For additional infor-
mation, refer to “Vehicle information dis-
play” in this section.
1Compression ratio status display
Displays the status of compression ra-
tio controlled by Variable Compression
Turbo. The lowest compression ratio
(8:1) and the highest (14:1) are displayed
as “Power” and ”Eco” respectively.
2Turbo charger boost pressure gauge
Displays the turbo charger boost pres-
sure.
NOTE:
Under some conditions, the compres-
sion ratio may not change. This is not a
malfunction of the system.
CAUTION
If the Variable Compression Turbo be-
comes faulty, the Malfunction Indicator
Light (MIL) may come on. For additional
information, refer to “Malfunction Indi-
cator Light (MIL)” in this section.
LIC3924
2-8Instruments and controls

Master warning light
When the ignition is in the ON position, the
master warning light illuminates if any of
the following are displayed on the vehicle
information display.∙ No key warning
∙ Low windshield-washer fluid warning
∙ Parking brake release warning
∙ Door/trunk open warning
∙ Loose fuel cap
∙ Low tire pressure warning
Power steering warninglight
WARNING
∙ If the engine is not running or is turned off while driving, the power as-
sist for the steering will not work.
Steering will be harder to operate. ∙ When the power steering warning
light illuminates with the engine run-
ning, there will be no power assist for
the steering. You will still have control
of the vehicle, but the steering will be
harder to operate. Have the power
steering system checked. It is recom-
mended that you visit a NISSAN dealer
for this service.
When the ignition switch is placed in the ON
position, the power steering warning light
illuminates. Af ter starting the engine, the
power steering warning light turns off. This
indicates the power steering is operational.
If the power steering warning light illumi-
nates while the engine is running, it may
indicate the power steering is not function-
ing properly and may need servicing. Have
the power steering checked. It is recom-
mended that you visit a NISSAN dealer for
this service.
When the power steering warning light illu-
minates with the engine running, there will
be no power assist for the steering, but you
will still have control of the vehicle. At this
time, greater steering effort is required to
operate the steering wheel, especially in
sharp turns and at low speeds. For additional information, refer to “Power
steering” in the “Starting and driving” sec-
tion of this manual.
Rear Automatic Braking
(RAB) warning light (if so
equipped)
This light comes on when the ignition
switch is placed in the ON position. It turns
off af ter the engine is started.
This light illuminates when the RAB system
is turned off in the vehicle information dis-
play.
If the light illuminates when the RAB sys-
tem is on, it may indicate that the system is
unavailable. For additional information, re-
fer to “Rear Automatic Braking (RAB)” in the
“Starting and driving” section of this
manual.
Seat belt warning light andchime
The light and chime remind you to fasten
the driver and front passenger seat belts.
For additional information, refer to “Seat
belts” in the “Safety—Seats, seat belts and
supplemental restraint system” section of
this manual.
2-14Instruments and controls

The OK,andbuttons also
control audio and control panel functions
in some conditions. Most screens and
menus offer instruction prompts of the
steering switch buttons to indicate how to
control the vehicle information display.
Dots on the right side of the vehicle infor-
mation display will appear if there is more
than one page of menu items or warning
messages. The OK button changes the
audio source and the
buttons
also control voice recognition manual
mode. The OK button can be used to
change the audio source when the audio
screen is displayed. The
but-
tons can be used when controlling voice
recognition prompts manually. For addi-
tional information, refer to the separate
NissanConnect® Owner’s Manual.
STARTUP DISPLAY
When the vehicle in placed in the ON position
the vehicle information display may display
the following screens (if so equipped):
∙ Home
∙ Drive Computer — Speed, Fuel Economy, Trip Distance & Time ∙ Convenience
∙ Digital speed and average speed
∙ Instant fuel economy/ average fuel
economy
∙ Traffic Sign Recognition
∙ Tire Pressure
∙ Variable Compression Turbo
∙ Speed Limit Sign
∙ Compass and Navigation
∙ Audio/telephone
∙ Intelligent Cruise Control (ICC)
∙ ProPILOT
∙ Driving Aids
∙ Settings
∙ Warnings*
*Warnings will only display if there are any
present. For additional information, refer to
“Vehicle information display warnings and
indicators” in this section.
To control what items display in the vehicle
information display, refer to “How to use the
vehicle information display” in this section.
RESETTING THE DRIVE COMPUTER
The drive computer is divided across three
screens: ∙ Average Speed
∙ Average Fuel Economy
∙ Trip Distance & Time
1. Press the
but-
tons until you reach the desired drive
computer mode.
2. Press and hold the OK button for ap- proximately 1 second to reset the infor-
mation on the currently displayed
screen.
NOTE:
If you wish to reset all drive computer
values at once, press and hold the OK
button for approximately 3 seconds until
a reset menu appears; and follow the
instructions.
2-20Instruments and controls

Unit/Language
The unit/language menu allows the user to
change the units shown in the vehicle in-
formation display.
Menu itemResult
Mileage/Fuel Displays the available mileage/fuel display units and allows user to select preferred unit for display.
Tire Pressure Allows user to select the tire pressure display units. Changing the tire pressure units will also change the
units displayed for the Variable Compression Turbo (if so equipped).
Temperature Allows user to select the temperature display units.
Language Displays the available language options and allows user to select preferred language for display.
Key-Linked Settings (if so
equipped)
Menu item Result
Key-Linked Settings Allows user to turn the Key-Linked Settings on or off. For additional information, refer to “Memory storage
function (key-link)” in the “Pre-driving checks and adjustments” section of this manual.
Factory Reset
The factory reset menu allows the user to
restore the vehicle information display set-
tings to factory status.
Menu item Result
Factory Reset Allows user to reset the vehicle information display settings to the original factory settings. Once selected,
the user can confirm or cancel the reset.
2-28Instruments and controls

VEHICLE INFORMATION DISPLAY
WARNINGS
1. No Key Detected
2. Key ID Incorrect
3. Key Battery Low
4. Key System Error: See Owner’s Manual
5. Key Registration Complete
6. Shif t to Park
7. Push ignition to OFF
8. Push brake and start switch to drive
9. Engine start operation for IntelligentKey system (if I-Key battery level is low)
10. Release Parking Brake
11. Low Fuel
12. Loose Fuel Cap
13. Low Oil Pressure: See Owner’s Manual
14. Low Washer Fluid (if so equipped)
15. Tire Pressure Low - Add Air
16. TPMS Error: See Owner’s Manual
17. Door Open
18. Trunk Open 19. Timer Alert – Have a break?
20. Low Outside Temperature
21. Power will turn off to save the battery
22. Power turned off to save the battery
23. Reminder: Turn OFF headlights
24. Headlight System Error: See Owner’s
Manual (if so equipped)
25. Parking Sensor Error: See Owner’s Manual (if so equipped)
26. Driver Attention Alert Malfunction
27. Malfunction: See Owner’s Manual (if so equipped)
28. Unavailable: Side Radar Obstruction (if so equipped)
29. Unavailable: High Camera Temperature (if so equipped)
30. Driver Attention Alert— Take a Break?
31. Malfunction (if so equipped)
32. Shipping Mode On Push Storage Fuse
33. Not Available: Parking Brake On (if so equipped)
34. CVT Error: See Owner’s Manual
35. Rear Door Alert is activated 36. Check Back Seat For All Articles
37. Intelligent Cruise Control (ICC) indica-
tors (if so equipped)
38. Intelligent Cruise Control (ICC) (for ve- hicles with ProPILOT Assist) indicators
(if so equipped)
39. Speed Limit Sign indicator (if so equipped)
40. System Fault (if so equipped)
41. Chassis Control System Error: See Owner’s Manual (if so equipped)
42. Not Available System Malfunction (if so equipped)
43. Not Available: Seat Belt Not Fastened (if so equipped)
44. Not Available: Front Radar Blocked (if so equipped)
45. Currently not available (if so equipped)
46. Not Available Poor Road Conditions (if so equipped)
47. Unavailable: High Cabin Temperature (if so equipped)
48. AWD Error: See Owner’s Manual (if so equipped)
2-32Instruments and controls

Engine start operation for Intelligent
Key system (if I-Key battery level is low)
This indicator appears when the battery of
the Intelligent Key is low and when the In-
telligent Key system and the vehicle are not
communicating normally.
If this appears, touch the ignition switch
with the Intelligent Key while depressing
the brake pedal. For additional information,
refer to “NISSAN Intelligent Key® battery dis-
charge” in the “Starting and driving” section
of this manual.
Release Parking Brake
This warning illuminates in the message
area of the vehicle information display
when the parking brake is set and the ve-
hicle is driven.
Low Fuel
This warning illuminates when the fuel level
in the fuel tank is getting low. Refuel as
soon as it is convenient, preferably before
the fuel gauge reaches 0 (Empty).There
will be a small reserve of fuel in the tank
when the fuel gauge needle reaches 0
(Empty). Loose Fuel Cap
This warning appears when the fuel-filler
cap is not tightened correctly af ter the ve-
hicle has been refueled. For additional in-
formation, refer to “Fuel-filler cap” in the
“Pre-driving checks and adjustments” sec-
tion of this manual.
Low Oil Pressure: See Owner’s Manual
This warning appears in the message area
of the vehicle information display if low oil
pressure is detected. This gauge is not de-
signed to indicate low oil level.
The low oil
pressure warning is not designed to indi-
cate a low oil level. Use the dipstick to
check the oil level. For additional informa-
tion, refer to “Engine oil” in the “Do-it-
yourself ” section of this manual.
Low Washer Fluid (if so equipped)
This warning illuminates when the
windshield-washer fluid is at a low level.
Add windshield-washer fluid as necessary.
For additional information, refer to
“Windshield-washer fluid” in the “Do-it-
yourself ” section of this manual.
Tire Pressure Low - Add Air
This warning appears when the low tire
pressure warning light in the meter illumi- nates and low tire pressure is detected. The
warning appears each time the ignition
switch is placed in the ON position as long
as the low tire pressure warning light re-
mains illuminated. If this warning appears,
stop the vehicle and adjust the tire pres-
sures of all four tires to the recommended
COLD tire pressure shown on the Tire and
Loading Information label. For additional
information, refer to “Low tire pressure
warning light” in this section and “Tire Pres-
sure Monitoring System (TPMS)” in the
“Starting and driving” section of this
manual.
TPMS Error: See Owner’s Manual
This warning appears when there is an er-
ror with your TPMS. If this warning comes
on, have the system checked. It is recom-
mended that you visit a NISSAN dealer for
this service.
Door Open
This warning illuminates when a door has
been opened.
Trunk Open
This warning illuminates when the trunk
has been opened.
2-34Instruments and controls

HOW TO TURN ON AND OFF
PREDICTED COURSE LINES
To toggle ON and OFF the predicted course
lines while in the P (Park) position:1. Press the CAMERA button.
2. Touch the “Predicted Course Lines” key to turn the feature ON or OFF.
To toggle ON and OFF the predicted course
lines while in the R (Reverse) position, press
the CAMERA button.
REARVIEW MONITOR SYSTEM
LIMITATIONS
WARNING
Listed below are the system limitations
for RearView Monitor. Failure to operate
the vehicle in accordance with these
system limitations could result in seri-
ous injury or death.
∙ The system cannot completely elimi- nate blind spots and may not show
every object. ∙ Underneath the bumper and the cor-
ner areas of the bumper cannot be
viewed on the RearView Monitor be-
cause of its monitoring range limita-
tion. The system will not show small
objects below the bumper, and may
not show objects close to the bumper
or on the ground.
∙ Objects viewed in the RearView Moni- tor differ from actual distance be-
cause a wide-angle lens is used.
∙ Objects in the RearView Monitor will appear visually opposite compared to
when viewed in the rearview and out-
side mirrors.
∙ Use the displayed lines as a reference. The lines are highly affected by the
number of occupants, fuel level, ve-
hicle position, road conditions and
road grade.
∙ Make sure that the trunk is securely closed when backing up.
∙ Do not put anything on the rearview camera. The rearview camera is in-
stalled above the license plate. ∙ When washing the vehicle with high
pressure water, be sure not to spray it
around the camera. Otherwise, water
may enter the camera unit causing
water condensation on the lens, a
malfunction, fire or an electric shock.
∙ Do not strike the camera. It is a preci- sion instrument. Otherwise, it may
malfunction or cause damage result-
ing in a fire or an electric shock.
The following are operating limitations and
do not represent a system malfunction: ∙ When the temperature is extremely high or low, the screen may not clearly
display objects.
∙ When strong light directly shines on the camera, objects may not be displayed
clearly.
∙ Vertical lines may be seen in objects on the screen. This is due to strong re-
flected light from the bumper.
∙ The screen may flicker under fluores- cent light.
∙ The colors of objects on the RearView Monitor may differ somewhat from the
actual color of objects.
Monitor, climate, audio, phone and voice recognition systems4-9

∙ 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

5.Use Cruise Control
∙ Using cruise control during highway driving helps maintain a steady
speed.
∙ Cruise control is particularly effective in providing fuel savings when driving
on flat terrains.
6. Plan for the Shortest Route
∙ Utilize a map or navigation system to determine the best route to save
time.
7. Avoid Idling
∙ Shutting off your engine when safe for stops exceeding 30–60 seconds
saves fuel and reduces emissions.
8. Buy an Automated Pass for Toll
Roads
∙ Automated passes permit drivers to use special lanes to maintain cruis-
ing speed through the toll and avoid
stopping and starting. 9.
Winter Warm Up
∙ Limit idling time to minimize impact to fuel economy.
∙ Vehicles typically need no more than 30 seconds of idling at start-up to
effectively circulate the engine oil be-
fore driving.
∙ Your vehicle will reach its ideal oper- ating temperature more quickly
while driving versus idling.
10. Keeping your Vehicle Cool
∙ Park your vehicle in a covered parking area or in the shade whenever pos-
sible.
∙ When entering a hot vehicle, opening the windows will help to reduce the
inside temperature faster, resulting in
reduced demand on your A/C sys-
tem. ∙ Keep your engine tuned up.
∙ Follow the recommended scheduled
maintenance.
∙ Keep the tires inflated to the correct pressure. Low tire pressure increases
tire wear and lowers fuel economy.
∙ Keep the wheels in correct alignment. Improper alignment increases tire wear
and lowers fuel economy.
∙ Use the recommended viscosity engine oil. For additional information, refer to
“Engine oil and oil filter recommenda-
tions” in the “Technical and consumer
information” section of this manual.
INCREASING FUEL ECONOMY
Starting and driving5-165

When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The fol-
lowing are general precautions which
should be closely observed.
WARNING
∙ Park the vehicle on a level surface, ap-ply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. Move the shif t le-
ver to P (Park).
∙ Be sure the ignition key is in the OFF or LOCK position when performing any
parts replacement or repairs.
∙ If you must work with the engine run- ning, keep your hands, clothing, hair
and tools away from moving fans,
belts and any other moving parts.
∙ It is advisable to secure or remove any loose clothing and remove any jew-
elry, such as rings, watches, etc. be-
fore working on your vehicle.
∙ Always wear eye protection whenever you work on your vehicle. ∙ Your vehicle is equipped with an auto-
matic engine cooling fan. It may come
on at any time without warning, even
if the ignition key is in the OFF position
and the engine is not running. To
avoid injury, always disconnect the
negative battery cable before work-
ing near the fan.
∙ If you must run the engine in an en- closed space such as a garage, be sure
there is proper ventilation for exhaust
gases to escape.
∙ Never get under the vehicle while it is supported only by a jack. If it is neces-
sary to work under the vehicle, sup-
port it with safety stands.
∙ Keep smoking materials, flame and sparks away from the fuel tank and
battery.
∙ On gasoline engine models, the fuel filter or fuel lines should be serviced. It
is recommended that you visit a
NISSAN dealer for this service because
the fuel lines are under high pressure
even when the engine is off.
CAUTION
∙ Do not work under the hood while theengine is hot. Turn the engine off and
wait until it cools down.
∙ Avoid contact with used engine oil and coolant. Improperly disposed en-
gine oil, engine coolant and/or other
vehicle fluids can damage the envi-
ronment. Always conform to local
regulations for disposal of vehicle
fluid.
∙ Never leave the engine or the trans- mission related component harness
connector disconnected while the ig-
nition switch is in the ON position.
∙ Never connect or disconnect the bat- tery or any transistorized component
while the ignition switch is in the ON
position.
MAINTENANCE PRECAUTIONS
8-2Do-it-yourself