2023 NISSAN ALTIMA check engine light

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.
Brake fluid level*: Make sure that the brake
fluid level is between the MAX and MIN lines
on the reservoir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Engine drive belts*: Make sure the drive
belts are not frayed, worn, cracked or oily.
Engine oil level*: Check the level af ter
parking the vehicle on a level spot and
turning off the engine. Wait more than 15
minutes for the oil to drain back into the oil
pan.
9-4Maintenance and schedules

Fuel containing MMT
MMT, or methylcyclopentadienyl manga-
nese tricarbonyl, is an octane boosting ad-
ditive. NISSAN does not recommend the
use of fuel containing MMT. Such fuel may
adversely affect vehicle performance, in-
cluding the emissions control system. Note
that while some fuel pumps label MMT
content, not all do, so you may have to
consult your gasoline retailer for more
details.
Af termarket fuel additives
NISSAN does not recommend the use of
any af termarket fuel additives (for ex-
ample, fuel injector cleaner, octane
booster, intake valve deposit removers,
etc.) which are sold commercially. Many of
these additives intended for gum, varnish
or deposit removal may contain active sol-
vents or similar ingredients that can be
harmful to the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended can
cause persistent, heavy “spark knock.”
(“Spark knock” is a metallic rapping
noise.) If severe, this can lead to engine
damage. If you detect a persistent heavy
spark knock even when using gasoline
of the stated octane rating, or if you hear
steady spark knock while holding a
steady speed on level roads, it is recom-
mended that you have a NISSAN dealer
correct the condition. Failure to correct
the condition is misuse of the vehicle, for
which NISSAN is not responsible.
Incorrect ignition timing may result in
spark knock, af ter-run and/or overheating,
which may cause excessive fuel consump-
tion or engine damage. If any of the above
symptoms are encountered, have your ve-
hicle checked. It is recommended that you
visit a NISSAN dealer for servicing.However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is not
a cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
10-6Technical and consumer information

WARNING
A vehicle equipped with All -Wheel
Drive (AWD) should never be tested us-
ing a two wheel dynamometer (such as
the dynamometers used by some
states for emissions testing), or similar
equipment. Make sure you inform the
test facility personnel that your vehicle
is equipped with AWD before it is placed
on a dynamometer. Using the wrong
test equipment may result in drivetrain
damage or unexpected vehicle move-
ment which could result in serious ve-
hicle damage or personal injury.
Due to legal requirements in some states
and Canadian Provinces, your vehicle may
be required to be in what is called the
“ready condition” for an Inspection/
Maintenance (I/M) test of the emission
control system.
The vehicle is set to the “ready condition”
when it is driven through certain driving
patterns. Usually, the ready condition can
be obtained by ordinary usage of the
vehicle. If a powertrain system component is re-
paired or the battery is disconnected, the
vehicle may be reset to a “not ready ” condi-
tion. Before taking the I/M test, check the
vehicle's inspection/maintenance test
readiness condition. Place the ignition
switch in the ON position without starting
the engine. If the Malfunction Indicator
Light (MIL) comes on steady for 20 seconds
and then blinks for 10 seconds , the I/M test
condition is “not ready”. If the MIL does not
blink af ter 20 seconds, the I/M test condi-
tion is “ready ”. It is recommended that you
visit a NISSAN dealer to set the “ready con-
dition” or to prepare the vehicle for testing.
This vehicle is equipped with an Event Data
Recorder (EDR). The main purpose of an
EDR is to record, in certain crash or near
crash-like situations, such as an air bag
deployment or hitting a road obstacle, data
that will assist in understanding how a ve-
hicle's systems performed. The EDR is de-
signed to record data related to vehicle dy-
namics and safety systems for a short
period of time, typically 30 seconds or less.
The EDR in this vehicle is designed to re-
cord such data as:
• How various systems in your vehicle were
operating;
• Whether or not the driver and passenger safety belts were buckled/fastened;
• How far (if at all) the driver was depress- ing the accelerator and/or brake pedal;
and,
• How fast the vehicle was traveling.
• Sounds are not recorded.
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST EVENT DATA RECORDERS (EDR)
10-24Technical and consumer information

Brightness controlInstrument panel.............2-62Brightness/contrast button.........4-7Bulb check/instrument panel........2-10Bulb replacement...............8-26
C
C.M.V.S.S. certification label.........10-13Capacities and recommended
fuel/lubricants................ .10-2Car phone or CB radio............4-67Cargo
(See vehicle loading information).....10-16Chassis control................5-178Check tire pressure..........2-31, 2-48Child restraints.......1-21,1-22,1-23,1-25LATCH (Lower Anchors and Tethers for
CHildren) System..............1-25Precautions on child
restraints............1-31, 1-38, 1-43Top tether strap anchor point
locations...................1-28Child safety rear door lock..........3-7Cleaning exterior and interior......7-2,7-5Clock set/adjustment.............4-5Cold weather driving............5-185Console box..................2-72Continuously Variable Transmission
(CVT).......................5-18Continuously Variable Transmission (CVT)
fluid......................8-12
Driving with Continuously Variable
Transmission (CVT)............5-18Control panel buttons.............4-3Brightness/contrast button........4-7Controls
Audio controls (steering wheel).....4-63Heater and air conditioner
controls................4-33, 4-41CoolantCapacities and recommended
fuel/lubricants
...............10-2Changing engine coolant.........8-6Checking engine coolant level......8-6Engine coolant temperature gauge. . .2-6Corrosion protection..............7-8Cruise control................ .5-68Cup holders...............2-73,2-74
D
Daytime Running Light System......2-62Defroster switch
Rear window and outside mirror defroster
switch
................... .2-56Dimensions and weights..........10-11Dimmer switch for instrument panel. . .2-62Display controls (see control panel
buttons).................... .4-3Door locks....................3-4Drive belt....................8-16Driving
Cold weather driving...........5-185
Driving with Continuously Variable
Transmission (CVT)............5-18Precautions when starting and
driving................. .5-4, 5-10Driving the vehicle...............5-18
E
Economy - fuel................5-168Emergency call (SOS) button........2-67Emergency engine shutoff.......5-15,6-2Emission control information label. . . .10-14Emission control system warranty. . . .10-22Engine
Before starting the engine........5-16Capacities and recommended
fuel/lubricants...............10-2Changing engine coolant.........8-6Changing engine oil............8-8Changing engine oil filter.........8-8Checking engine coolant level......8-6Checking engine oil level..........8-7Engine compartment check
locations.................. .8-3Engine coolant temperature gauge. . .2-6Engine cooling system...........8-5Engine oil...................8-7Engine oil and oil filter
recommendation.............10-7Engine oil pressure warning light. . . .2-11Engine oil viscosity.............10-7Engine serial number..........10-13Engine specifications...........10-9
11-2

Instrument panel.............0-6, 2-2Instrument panel dimmer switch.....2-62Intelligent Around View Monitor......4-16Intelligent Cruise Control (ICC)........5-71Intelligent Cruise Control (ICC)
(for vehicles with ProPILOT Assist). . . .5-106Intelligent Driver Alertness (I-DA).....5-162Intelligent Forward Collision Warning
(I-FCW).....................5-147Intelligent Key systemKey operating range............3-9Key operation................3-10Mechanical key................3-3Remote keyless entry operation. . . .3-14Troubleshooting guide..........3-16Warning signals...............3-16Intelligent Lane Intervention (I-LI).....5-40Intelligent Trace Control (I-TC).......5-178Interior light...................2-79Interior trunk lid release...........3-24iPod® Player................. .4-57ISOFIX child restraints.............1-25
J
Jump starting..............6-17,8-15
K
Key.........................3-2Key fob battery replacement........8-23
Keyless entry
With Intelligent Key system
(See Intelligent Key system)
.......3-14KeysNISSAN Intelligent Key®...........3-2NISSAN Vehicle Immobilizer System
keys..................... .3-4
L
Label
Tire and Loading Information label. .10-14LabelsAir conditioner specification label. . .10-14C.M.V.S.S. certification label.......10-13Emission control information label. .10-14Engine serial number..........10-13F.M.V.S.S. certification label........10-13Tire and Loading Information label. .10-14Vehicle identification number (VIN)
plate.................... .10-12Warning labels (for SRS)..........1-67Lane Departure Warning (LDW).......5-33LATCH (Lower Anchors and Tethers for
CHildren) System...............1-25Launch bar menu................4-7License plate
Installing the license plate........10-15LightAir bag warning light........1-67, 2-12Brake light (See stop light)........8-26Bulb check/instrument panel......2-10Bulb replacement.............8-26
Charge warning light............2-11Exterior and Interior lights........8-26Fog light switch..............2-63Fog lights..................8-26Headlight and turn signal switch. . . .2-57Headlight control switch.........2-57Headlights..................8-25Interior light.................2-79Light bulbs.................8-25Low tire pressure warning light.....2-13Low windshield-washer fluid warning
light................. .2-30, 2-47Personal lights...............2-80Security indicator light..........2-12Spotlights (See map light)........2-80Trunk light..................2-80Lights......................8-25Map lights..................2-80Lock
Child safety rear door lock.........3-7Door locks................. .3-4Fuel-filler door lock opener lever. . . .3-25Glove box lock...............2-72Power door locks..............3-6Trunk lid lock opener lever........3-22Loose fuel cap warning........2-30, 2-46Low fuel warning light. .2-11, 2-15, 2-30, 2-47Low tire pressure warning light.......2-13Low windshield-washer fluid warning
light................... .2-30, 2-47Luggage (See vehicle loading
information)..................10-16
11-4

M
MaintenanceGeneral maintenance...........9-2Inside the vehicle..............9-3Maintenance precautions.........8-2Outside the vehicle.............9-3Seat belt maintenance..........1-20Under the hood and vehicle.......9-4Maintenance requirements..........9-2Maintenance schedules............9-7Malfunction indicator light..........2-15Manual front seat adjustment........1-3Map lights.................. .2-80Memory seat...........3-31, 3-32, 3-33Menu button...................4-5Meters and gauges..............2-4Instrument brightness control.....2-62Mirror
Automatic anti-glare inside mirror. . .3-29Outside mirrors..............3-30Rearview...................3-29Vanity mirror................3-29Mirrors......................3-29Moonroof.................2-77,7-6Moving Object Detection (MOD)......4-27
N
NISSAN Intelligent Key®............3-2NISSAN Intelligent Key® battery discharge
indicator.....................5-15
NISSAN Vehicle Immobilizer
System................. .2-54, 5-16NissanConnect® Owner's Manual......4-2
O
Octane rating (See fuel octane rating). .10-6Oil
Capacities and recommended
fuel/lubricants
...............10-2Changing engine oil............8-8Changing engine oil filter.........8-8Checking engine oil level..........8-7Engine oil...................8-7Engine oil and oil filter
recommendation.............10-7Engine oil viscosity.............10-7Oil control system...........2-20, 2-36Outside mirrors................3-30Overhead sunglasses holder........2-73Overheat
If your vehicle overheats.........6-19Owner's manual order form........10-26Owner's manual/service manual order
information................. .10-26
P
Parking
Parking/parking on hills.........5-171Parking brake........2-11,2-13,2-17,5-25Personal lights................ .2-80Phone, Bluetooth® hands-free system. .4-67
Power
Power door locks..............3-6Power outlet................2-69Powerrearwindows............2-76Power steering system.........5-172Power windows..............2-75Rear power windows...........2-76Power outlet................. .2-69Power steering................5-172Precautions
Maintenance precautions.........8-2Precautions on booster
seats...............1-31, 1-38, 1-43Precautions on child
restraints............1-31, 1-38, 1-43Precautions on seat belt usage.....1-12Precautions on supplemental restraint
system................... .1-47Precautions when starting and
driving..................5-4, 5-10ProPILOT Assist................5-94Push starting..................6-19
R
Radio
Car phone or CB radio..........4-67FM/AM radio................4-49Readiness for inspection maintenance (I/M)
test...................... .10-24Rear Automatic Braking (RAB).......5-127Rear Cross Traffic Alert (RCTA).......5-58Rear Door Alert......2-29,2-45, 2-46, 2-67
11-5