2019 NISSAN ALTIMA ECU

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

5. Determine the combined weightof luggage and cargo being
loaded on the vehicle. That
weight may not safely exceed
the available cargo and luggage
load capacity calculated in
step 4.
Before driving a loaded vehicle, con-
firm that you do not exceed the
Gross Vehicle Weight Rating (GVWR)
or the Gross Axle Weight Rating
(GAWR) for your vehicle. For addi-
tional information, refer to “Measure-
ment of weights” in this section.
Also check tires for proper inflation
pressures. For additional informa-
tion, refer to “Tire and Loading Infor-
mation label” in this section.LOADING TIPS
∙The GVW must not exceed GVWR or
GAWR as specified on the F.M.V.S.S./
C.M.V.S.S. certification label.
∙ Do not load the front and rear axle to the GAWR. Doing so will
exceed the GVWR.
WARNING
∙ 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.
∙ Do not load your vehicle any heavier than the GVWR or the
maximum front and rear
GAWRs. If you do, parts of your
vehicle can break, tire damage
could occur, or it can change the
way your vehicle handles. This
could result in loss of control
and cause personal injury. ∙ Overloading not only can
shorten the life of your vehicle
and the tire, but can also cause
unsafe vehicle handling and
longer braking distances. This
may cause a premature tire
failure which could result in a
serious accident and personal
injury. Failures caused by over-
loading are not covered by the
vehicle’s warranty.
MEASUREMENT OF WEIGHTS
Secure loose items to prevent
weight shif ts that could affect the
balance of your vehicle. When the ve-
hicle is loaded, drive to a scale and
weigh the front and the rear wheels
separately to determine axle loads.
Individual axle loads should not ex-
ceed either of the gross axle weight
ratings (GAWR). The total of the axle
loads should not exceed the gross
vehicle weight rating (GVWR). These
ratings are given on the vehicle cer-
tification label. If weight ratings are
exceeded, move or remove items to
bring all weights below the ratings.
10-16
Technical and consumer information

For USA
If you believe that your vehicle has a
defect which could cause a crash or
could cause injury or death, you
should immediately inform the Na-
tional Highway Traffic Safety Admin-
istration (NHTSA) in addition to noti-
f ying NISSAN.
If NHTSA receives similar complaints,
it may open an investigation, and if it
finds that a safety defect exists in a
group of vehicles, it may order a re-
call and remedy campaign. However,
NHTSA cannot become involved in
individual problems between you,
your dealer, or NISSAN.
To contact NHTSA, you may call the
Vehicle Safety Hotline toll-free at
1-888-327-4236 (TTY: 1-800-424-9153);
go to http://www.safercar.gov; or
write to: Administrator, NHTSA, 400
Seventh Street, SW., Washington, D.C.
20590. You can also obtain other in-
formation about motor vehicle safety
from http://www.safercar.gov.
You may notif y NISSAN by contact-
ing our Consumer Affairs Depart-
ment, toll-free, at 1-800-NISSAN-1.
For Canada
If you believe that your vehicle has a
defect which could cause a crash or
could cause injury or death, you
should immediately inform Trans-
port Canada in addition to notif ying
NISSAN.
If Transport Canada receives com-
plaints, it may open an investigation,
and if it finds that a safety defect
exists in a group of vehicles, it may
request that NISSAN conduct a
recall campaign. However, Transport
Canada cannot become involved in
individual problems between you,
your dealer, or NISSAN.You may contact Transport Canada’s
Defect Investigations and Recalls
Division toll free at 1-800-333-0510.
You may also report safety defects
online at: https://wwwapps.tc.gc.ca/
Saf-Sec-Sur/7/PCDB-BDPP/fc-
cp.aspx?lang=eng (English speakers)
or https://wwwapps.tc.gc.ca/
Saf-Sec-Sur/7/PCDB-BDPP/fc-
cp.aspx?lang=fra (French speakers)
Additional information concerning
motor vehicle safety may be obtained
from Transport Canada’s Road Safety
Information Centre at 1-800-333-0371
or online at www.tc.gc.ca/roadsafety
(English speakers) or www.tc.gc.ca/
securiteroutiere (French speakers).
To notif y NISSAN of any safety con-
cerns please contact our Consumer
Information Centre toll free at 1-800-
387-0122.
REPORTING SAFETY DEFECTS
Technical and consumer information10-19

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

KeysNISSAN Intelligent Key® ..........3-2
NISSAN Vehicle Immobilizer System
keys......................3-4
L
Label Tire and Loading Information label . .10-12
Labels Air conditioner specification label . . .10-12
C.M.V.S.S. certification label .......10-11
Emission control information label . .10-12
Engine serial number ...........10-11
F.M.V.S.S. certification label ........10-11
Tire and Loading Information label . .10-12
Vehicle identification number (VIN) . .10-10
Vehicle identification number (VIN)
plate.....................10-10
Warning labels (for SRS) .........1-66
Lane Departure Warning (LDW) .......5-34
LATCH (Lower Anchors and Tethers for
CHildren)System............... .1-26
License plate Installing the license plate .......10-13
Light Airbagwarninglight........1-66, 2-15
Brakelight(Seestoplight)........8-27
Bulb check/instrument panel ......2-10
Bulb replacement .............8-27
Charge warning light ...........2-11
ExteriorandInteriorlights........8-27
Foglights..................8-27
Foglightswitch..............2-50
Headlight and turn signal switch ....2-43Headlightcontrolswitch.........2-43
Headlights .................8-26
Interiorlight.................2-64
Lightbulbs.................8-26
Low tire pressure warning light
.....2-12
Low windshield-washer fluid warning
light......................2-34
Personal lights ...............2-65
Security indicator light ..........2-17
Spotlights(Seemaplight)........2-65
Trunklight..................2-65
Warning/indicator lights and audible
reminders ..................2-15
Lights......................8-26 Maplights..................2-65
Lock Child safety rear door lock ........3-7
Door locks ................3-4,3-5
Fuel-filler door lock opener lever ....3-27
Gloveboxlock...............2-57
Power door locks ..............3-6
Trunk lid lock opener lever ........3-25
Loose fuel cap warning ...........2-34
Lowfuelwarninglight.........2-14,2-34
Low tire pressure warning light .......2-12
Low windshield-washer fluid warning
light........................2-34
Luggage
(See vehicle loading information) .....10-13
M
Maintenance General maintenance ...........9-3
Insidethevehicle..............9-4 Maintenance precautions
.........8-2
Outsidethevehicle.............9-3
Seat belt maintenance ..........1-20
Under the hood and vehicle .......9-4
Maintenance log ................9-20
Maintenance requirements ..........9-2
Maintenance schedules .........9-7,9-7
Maintenance under severe operation
conditions.................9-14,9-19
Malfunctionindicatorlight..........2-16
Manual front seat adjustment ........1-3
Maplights....................2-65
Memory Seat ...........3-33,3-34,3-35
Meters and gauges ...............2-4
Instrument brightness control .....2-49
Mirror Automatic anti-glare inside mirror . . .3-32
Outsidemirrors..............3-32
Rearview...................3-31
Vanitymirror................3-31
Mirrors......................3-31
Moonroof ..................2-62, 7-5
Moving Object Detection (MOD) ......4-23
N
NissanConnect® Owner's Manual ......
4-2
NISSAN Intelligent Key® ............3-2
NISSAN Intelligent Key® battery discharge
indicator.....................5-15
NISSAN Vehicle Immobilizer
System..................2-40,5-16
11-4

Armrests ...................1-7
Automatic drive
positioner ...........3-33,3-34,3-35
Frontseats..................1-2
Manual front seat adjustment ......1-3
Rearseat...................1-5
Security indicator light ............2-17
Security system (NISSAN Vehicle Immobilizer
System), engine start ..........2-40,5-16
Security systems Vehicle security system .........2-39
Self-adjustingbrakes.............8-21
Service manual order form .........10-22
Servicing air conditioner ...........4-41
Shif ting Continuously Variable Transmission
(CVT) .....................5-20
Shiftleverlockrelease............5-23
Shoulder belt height adjustment ......1-19
Sonar Rear system ................5-176
Spark plug replacement ...........8-18
Spark plugs ...................8-18
Specifications .................10-8
Speedometer ................2-4,2-5
Speedometer and odometer ........2-4
Spotlights(Seemaplight)..........2-65
SRS warning label ...............1-66
Stability control ................5-172
Standard maintenance ........9-10,9-15
Starting Before starting the engine ........5-16
Jumpstarting.............6-9,8-16
Precautions when starting and
driving ..................5-4,5-11
Push starting ................6-11 Starting the engine
............5-17
Starting the engine ..............5-17
Steering Heated steering wheel ..........2-52
Powersteeringsystem.........5-169
Steering Assist switch
(forvehicleswithProPILOTAssist).....2-52
Steering wheel .................3-29
Stoplight....................8-27
Storage.....................2-56
Sunglasses case ................2-58
Sunglasses holder ..............2-58
Sunroof ......................7-5
Sunroof (see Moonroof ) ...........2-62
Sunvisors....................3-30
Supplemental air bag warning
light.................... .1-66, 2-15
Supplemental front impact air bag
system ..................... .1-53
Supplemental restraint system Information and warning labels . . . .1-66
Precautions on supplemental restraint
system ................... .1-46
Supplemental restraint system
(Supplemental air bag system) .......1-46
Switch Autolightswitch..............2-44
Automatic power window switch . . .2-61
Foglightswitch..............2-50
Hazard warning flasher switch ......6-2
Headlight and turn signal switch ....2-43
Headlightcontrolswitch.........2-43
Instrument brightness control .....2-49
Power door lock switch ..........3-6
Rear window and outside mirror
defrosterswitch..............2-43 Turn signal switch
.............2-49
T
Tachometer ...................
2-6
Temperature gauge Engine coolant temperature gauge . .2-6
Thef t (NISSAN Vehicle Immobilizer System),
engine start ...............2-40,5-16
Three-waycatalyst...............5-4
Tilt Telescopicsteering............3-30
Tire Flattire..................6-3,6-4
Spare tire ...............6-5,8-42
Tire and Loading Information label . .10-12
Tire chains .................8-37
Tire pressure ................8-30
Tirerotation ................8-39
Types of tires ................8-36
Uniform tire quality grading .......10-17
Wheels and tires ..............8-30
Wheel/tire size ...............10-9
Tire pressure Low tire pressure warning light .....2-12
Tire Pressure Monitoring System
(TPMS)....................5-5,6-3
Towing 4-wheel drive models ...........6-13
Flattowing.................10-17
Trailertowing ...............10-17
Towingatrailer................10-17
Towingyourvehicle..............6-12
Traffic Sign Recognition (TSR) ........5-31
11-6

TransceiverHomeLink® Universal
Transceiver ....2-66,2-68,2-69,2-69,2-70
Transmission Continuously Variable Transmission (CVT)
fluid......................8-13
Driving with Continuously Variable
Transmission (CVT) ............5-18
Transmission shif t lever lock release . . .5-23
Travel (See registering a vehicle in another
country) .....................10-10
Trip odometer ...............2-4,2-5
Trunk access through the rear
seat.................... .1-5, 3-26
Trunklid.....................3-25
Trunk lid lock opener lever ..........3-25
Trunklight....................2-65
Turn signal switch ...............2-49
U
Uniform tire quality grading .........10-17
USB/iPod® Charging Ports .........4-42
V
Vanitymirror..................3-31
Variable voltage control system ......8-17
Vehicle dimensions and weights ......10-9
Vehicle Dynamic Control (VDC)
system .....................5-172
Vehicle identification .............10-10
Vehicle identification number (VIN) . . . .10-10Vehicle identification number (VIN)
(Chassis number)
...............10-10
Vehicle identification number (VIN)
plate.......................10-10
Vehicle immobilizer system ......2-40,5-16
Vehicleinformationdisplay.........2-19
Vehicle loading information ........10-13
Vehiclerecovery................6-14
Vehicle security system ...........2-39
Vehicle security system (NISSAN Vehicle
Immobilizer System), engine start . .2-40, 5-16
Ventilators ...................4-28
Visors ......................3-30
W
Warning Airbagwarninglight........1-66, 2-15
Anti-lock brake warning light ......2-10
Battery charge warning light ......2-11
Brakewarninglight ............2-11
Engine oil pressure warning light ....2-12
Hazard warning flasher switch ......6-2
Loose fuel cap warning .........2-34
Lowfuelwarninglight.......2-14,2-34
Lowtirepressurewarninglight.....2-12
Low windshield-washer fluid warning
light......................2-34
Seatbeltwarninglight.......1-14, 2-14
Supplemental air bag warning
light...................1-66, 2-15
TPMS......................2-4
Vehicle security system .........2-39Warning/indicator lights and audible
reminders
..................2-15
Warning labels (for SRS) .........1-66
Warning/indicator lights and audible
reminders ....................2-15
Audible reminders .............2-15
Indicatorlights...............2-15
Warninglights ...............2-15
Warninglights ................ .2-15
Warning lights, indicator lights and audible
reminders ....................2-9
Weights (See dimensions and weights) . .10-9
Wheels and tires ................8-30
Wheel/tire size .................10-9
When traveling or registering in another
country .....................10-10
Windows ................... .2-60
Locking passengers' windows .....2-61
Powerrearwindows ...........2-61
Powerwindows..............2-60
Rearpowerwindows...........2-61
Windshield-washer fluid ...........8-14
Windshield wiper blades ...........8-20
Wiper Wiper
blades................8-20
Wiper and washer switch ..........2-42
11-7

Front passenger air bag
The front passenger air bag is designed to
automatically turn OFF when the vehicle is
operated under some conditions as de-
scribed below in accordance with U.S. regu-
lations. If the front passenger air bag is OFF,
it will not inflate in a crash. The driver air bag
and other air bags in your vehicle are not
part of this system.
The purpose of the regulation is to help
reduce the risk of injury or death from an
inflating air bag to certain front passenger
seat occupants, such as children, by requir-
ing the air bag to be automatically turned
OFF. Certain sensors are used to meet the
requirements.
The occupant classification sensor in this
vehicle is a weight sensor. It is designed to
detect an occupant and objects on the
seat by weight. For example, if a child is in
the front passenger seat, the NISSAN Ad-
vanced Air Bag System is designed to turn
the front passenger air bag OFF in accor-
dance with the regulations. Also, if a child
restraint of the type specified in the regula-
tions is on the seat, its weight and the
child’s weight can be detected and cause
the air bag to turn OFF.Front passenger seat adult occupants who
are properly seated and using the seat belt
as outlined in this manual should not
cause the front passenger air bag and pas-
senger knee air bag to be automatically
turned OFF. For small adults it may be
turned OFF, however if the occupant takes
his/her weight off the seat cushion (for ex-
ample, by not sitting upright, by sitting on
an edge of the seat, or by otherwise being
out of position), this could cause the sensor
to turn the air bag OFF. Always be sure to be
seated and wearing the seat belt properly
for the most effective protection by the
seat belt and supplemental air bag.
NISSAN recommends that pre-teens and
children be properly restrained in a rear
seat. NISSAN also recommends that ap-
propriate child restraints and booster
seats be properly installed in a rear seat. If
this is not possible, the occupant classifica-
tion sensor is designed to operate as de-
scribed above to turn the front passenger
air bag and passenger knee air bag OFF for
specified child restraints as required by the
regulations. Failing to properly secure child
restraints and to use the ALR mode may
allow the restraint to tip or move in a colli-
sion or sudden stop. This can also result in
the passenger air bag and passenger knee
air bag inflating in a crash instead of beingOFF. For additional information about
proper use and installation, refer to “Child
restraints” in this section.
If the front passenger seat is not occupied,
the front passenger air bag and passenger
knee air bag are designed not to inflate in a
crash. However, heavy objects placed on
the seat could result in air bag inflation,
because of the object’s weight detected by
the occupant classification sensor. Other
conditions could also result in air bag infla-
tion, such as if a child is standing on the
seat, or if two children are on the seat, con-
trary to the instructions in this manual. Al-
ways be sure that you and all vehicle occu-
pants are seated and restrained properly.
Using the front passenger air bag status
light, you can monitor when the front pas-
senger air bag and passenger knee air bag
are automatically turned OFF.
If an adult occupant is in the seat but the
front passenger air bag status light is illu-
minated (indicating that the front passen-
ger air bag and passenger knee air bag are
OFF), it could be that the person is a small
adult, or is not sitting on the seat properly
or not using the seat belt properly.
If a child restraint must be used in the front
seat, the front passenger air bag status