2019 NISSAN ALTIMA check engine light

Supplemental air bagwarning light
When the ignition switch is placed in the ON
or START position, the supplemental air
bag warning light illuminates for about
7 seconds and then turns off. This means
the system is operational.
If any of the following conditions occur, the
front air bag, side air bag, curtain air bag,
and pretensioner systems need servicing
and your vehicle must be taken to a NISSAN
dealer:
∙ The supplemental air bag warning light remains on af ter approximately 7 sec-
onds.
∙ The supplemental air bag warning light flashes intermittently.
∙ The supplemental air bag warning light does not come on at all.
Unless checked and repaired, the supple-
mental restraint system (air bag system)
and/or the pretensioners may not function
properly. For additional details, refer to
“Supplemental Restraint System (SRS)” in
the “Safety—Seats, seat belts and supple-
mental restraint system” section of this
manual.
WARNING
If the supplemental air bag warning
light is on, it could mean that the front
air bag, side air bag, curtain air bag sys-
tems and/or pretensioner systems will
not operate in an accident. To help
avoid injury to yourself or others, have
your vehicle checked as soon as pos-
sible. It is recommended that you visit a
NISSAN dealer for this service.
INDICATOR LIGHTS
For additional information, refer to “Vehicle
information display” in this section.
Automatic brake hold indicator light (green) (if so
equipped)
The automatic brake hold indicator light
(green) illuminates while the automatic
brake hold system is operating.
For additional information, refer to “Auto-
matic brake hold” in the “Starting and driv-
ing” section of the Owner’s Manual.
Automatic brake holdindicator light (white)
(if so equipped)
The automatic brake hold indicator (white)
illuminates when the automatic brake hold
system is on standby.
For additional information, refer to “Auto-
matic brake hold” in the “Starting and driv-
ing” section of the Owner’s Manual.
orElectronic parking
brake indicator
light (red) (if so
equipped)
This light illuminates when the electronic
parking brake system is operating.
When the ignition switch is placed in the ON
position, the electronic parking brake
warning light illuminates. When the engine
is started and the parking brake is released,
the warning light turns off.
If the parking brake is not released, the
electronic parking brake warning light re-
mains illuminated. Ensure the electronic
parking brake warning light has turned off
before driving.
Instruments and controls2-15

If the electronic parking brake warning light
illuminates or flashes while the electronic
parking brake system warning light
(yellow) illuminates, it may indicate that the
electronic parking brake system is not
functioning properly. Have the system
checked. It is recommended that you visit a
NISSAN dealer for this service.
For additional information, refer to “Parking
brake” in the “Starting and driving” section
of this manual.
Front fog light indicatorlight (if so equipped)
The front fog light indicator light illumi-
nates when the front fog lights are on. For
additional information, refer to “Fog light
switch” in this section.
Front passenger air bagstatus light
The front passenger air bag status light will
be lit and the passenger front air bag will be
off depending on how the front passenger
seat is being used.
For additional information, refer to “Front
passenger air bag and status light” in the
“Safety — Seats, seat belts and supplemen-
tal restraint system” section of this manual.
High Beam Assist indicatorlight (green) (if so equipped)
This indicator light illuminates when the
headlights come on while the headlight
switch is in the AUTO position with the high
beams selected. This indicates that the
high beam assist is operational.
For additional information, refer to “Head-
light and turn signal switch” in this section.
High beam indicator light(blue)
This blue light comes on when the head-
light high beams are on and goes out when
the low beams are selected.
The high beam indicator light also comes
on when the passing signal is activated.
Malfunction Indicator Light(MIL)
If this indicator light comes on steady or
blinks while the engine is running, it may
indicate a potential emission control mal-
function. The MIL may also come on steady if the
fuel-filler cap is loose or missing, or if the
vehicle runs out of fuel. Check to make sure
the fuel-filler cap is installed and closed
tightly, and that the vehicle has at least
3 gallons (11.4 liters) of fuel in the fuel tank.
Af ter a few driving trips, the
light
should turn off if no other potential emis-
sion control system malfunction exists.
If this indicator light comes on steady for
20 seconds and then blinks for 10 seconds
when the engine is not running, it indicates
that the vehicle is not ready for an emission
control system inspection/maintenance
test. For additional information, refer to
“Readiness for Inspection/Maintenance
(I/M) test” in the “Technical and consumer
information” section of this manual.
2-16Instruments and controls

Operation
The MIL will come on in one of two ways:∙ MIL on steady — An emission control system malfunction has been de-
tected. Check the fuel-filler cap if the
Loose Fuel Cap warning appears in the
vehicle information display. If the fuel-
filler cap is loose or missing, tighten or
install the cap and continue to drive the
vehicle. The
light should turn off
af ter a few driving trips. If the
light
does not turn off af ter a few driving
trips, have the vehicle inspected. It is
recommended that you visit a NISSAN
dealer for this service. You do not need
to have your vehicle towed to the
dealer.
∙
MIL blinking — An engine misfire has been
detected which may damage the emis-
sion control system. To reduce or avoid
emission control system damage:
– do not drive at speeds above 45 mph (72 km/h).
– avoid hard acceleration or decelera- tion.
– avoid steep uphill grades. – if possible, reduce the amount of
cargo being hauled or towed.
The MIL may stop blinking and come on
steady. Have the vehicle inspected. It is rec-
ommended that you visit a NISSAN dealer
for this service. You do not need to have
your vehicle towed to the dealer.
CAUTION
Continued vehicle operation without
having the emission control system
checked and repaired as necessary
could lead to poor driveability, reduced
fuel economy, and possible damage to
the emission control system.
Security indicator light
This light blinks when the ignition switch is
placed in the OFF, LOCK or AUTO ACC posi-
tion.
The blinking security indicator light indi-
cates that the security systems equipped
on the vehicle are operational.
For additional information, refer to “Security
systems” in this section.
Side light and headlight indicator light (green)
The side light and headlight indicator light
illuminates when the side light or headlight
position is selected. For additional informa-
tion, refer to “Headlight and turn signal
switch” in this section.
Slip indicator light
This indicator light will blink when the Ve-
hicle Dynamic Control (VDC) system is op-
erating, thus alerting the driver to the fact
that the road surface is slippery and the
vehicle is nearing its traction limits.
You may feel or hear the system working;
this is normal.
The light will blink for a few seconds af ter
the VDC system stops limiting wheel spin.
The
indicator light also comes on
when you place the ignition switch in the
ON position. The light will turn off af ter ap-
proximately 2 seconds if the system is op-
erational. If the light does not come on
have the system checked. It is recom-
mended that you visit a NISSAN dealer for
this service.
Instruments and controls2-17

Turn signal/hazardindicator lights
The appropriate light flashes when the turn
signal switch is activated.
Both lights flash when the hazard switch is
turned on.
Vehicle Dynamic Control(VDC) OFF indicator light
This indicator light comes on when the
VDC is turned off in the vehicle information
display. This indicates the VDC has been
turned off.
Turn the VDC on using the vehicle informa-
tion display, or by restarting the engine. For
additional information, refer to “Vehicle Dy-
namic Control (VDC) system” in the “Start-
ing and driving” section of this manual.
The VDC light also comes on when the igni-
tion switch is placed in the ON position. The
light will turn off af ter a period of time if the
system is operational. If the light stays on or
comes on along with the
indicator light
while you are driving, have the VDC system
checked. It is recommended that you visit a
NISSAN dealer for this service.
WARNING
VDC should remain on unless freeing a
vehicle from mud or snow.
While the VDC system is operating, you
might feel a slight vibration or hear the sys-
tem working when starting the vehicle or
accelerating, but this is normal.
AUDIBLE REMINDERS
Brake pad wear warning
The disc brake pads have audible wear
warnings. When a disc brake pad requires
replacement, it makes a high pitched
scraping sound when the vehicle is in mo-
tion, whether or not the brake pedal is de-
pressed. Have the brakes checked as soon
as possible if the warning sound is heard.
Light reminder chime
With the ignition switch placed in the OFF
position, a chime sounds when the driver’s
door is opened if the headlights or parking
lights are on.
Turn the headlight control switch off before
leaving the vehicle.
NISSAN Intelligent Key® door
buzzer
The Intelligent Key door buzzer sounds if
the Intelligent Key is lef t inside the vehicle
when locking the doors. When the buzzer
sounds, be sure to check both the vehicle
and the Intelligent Key. For additional infor-
mation, refer to “NISSAN Intelligent Key®” in
the “Pre-driving checks and adjustments”
section of this manual.
2-18Instruments 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

49. AWD High Temp. Stop vehicle (if soequipped)
50. AWD Tire Size Incorrect: See Owner’s Manual (if so equipped)
No Key Detected
This warning appears when the Intelligent
Key is lef t outside the vehicle with the igni-
tion switch in the ON position. Make sure
the Intelligent Key is inside the vehicle.
For additional information, refer to “NISSAN
Intelligent Key®” in the “Pre-driving checks
and adjustments” section of this manual.
Key ID Incorrect
This warning appears when the ignition
switch is placed from the OFF position and
the Intelligent Key is not recognized by the
system. You cannot start the engine with
an unregistered key.
For additional information, refer to “NISSAN
Intelligent Key®” in the “Pre-driving checks
and adjustments” section of this manual.
Key Battery Low
This indicator illuminates when the Intelli-
gent Key battery is running out of power.
If this indicator illuminates, replace the bat-
tery with a new one. For additional infor- mation, refer to “Battery replacement” in
the “Do-it-yourself ” section of this manual.
Key System Error: See Owner’s Manual
Af ter the ignition switch is pushed to the
ON position, this light comes on for a period
of time and then turns off.
The Key System Error message warns of a
malfunction with the Intelligent Key sys-
tem. If the light comes on while the engine
is stopped, it may be impossible to start
the engine.
If the light comes on while the engine is
running, you can drive the vehicle. However,
in these cases, have the system checked. It
is recommended that you visit a NISSAN
dealer for this service.
Key Registration Complete
This appears when a new Intelligent Key is
registered to the vehicle.
Shif t to Park
This warning illuminates when the ignition
switch is in the AUTO ACC or OFF position
and the shif t lever is not in the P (Park)
position. Also, a chime sounds when the
ignition switch is in the AUTO ACC or OFF
position.If this warning illuminates, move the shif t
lever to the P (Park) position and start the
engine.
Push Ignition to OFF
Af ter the Push Ignition to OFF warning illu-
minates, the warning will illuminate if the
ignition switch is placed in the AUTO ACC
position when the shif t lever is moved to
the P (Park) position.
To turn off the Push warning, place the ig-
nition switch in the ON position and then in
the LOCK position.
Push brake and start switch to drive
This indicator appears when the shif t lever
is in the P (Park) position.
This indicator also appears when the ve-
hicle has been started using the Remote
Engine Start (if so equipped) function.
This indicator means that the engine will
start by pushing the ignition switch with
the brake pedal depressed. You can start
the engine from any position of the ignition
switch.
Instruments and controls2-33

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

WARNING
Do not use or allow occupants to use
the seat heater if you or the occupants
cannot monitor elevated seat tempera-
tures or have an inability to feel pain in
body parts that contact the seat. Use of
the seat heater by such people could
result in serious injury.
CAUTION
∙ The battery could run down if the seatheater is operated while the engine is
not running.
∙ Do not use the seat heater for ex- tended periods or when no one is us-
ing the seat.
∙ Do not put anything on the seat which insulates heat, such as a blanket,
cushion, seat cover, etc. Otherwise,
the seat may become overheated.
∙ Do not place anything hard or heavy on the seat or pierce it with a pin or
similar object. This may result in dam-
age to the heater.
∙ Any liquid spilled on the heated seat should be removed immediately with
a dry cloth.
∙ When cleaning the seat, never use gasoline, benzine, thinner, or any
similar materials.
∙ If any malfunctions are found or the heated seat does not operate, turn
the switch off and have the system
checked. It is recommended that you
visit a NISSAN dealer for this service. The front seats are warmed by built-in
heaters.
1. Place the ignition switch in the ON po- sition.
2. Push the switch until either two lights are illuminated for high setting, or one
light is illuminated for low setting.
The heater is controlled by a thermo-
stat, automatically turning the heater
on and off. The indicator light will re-
main on as long as the switch is on.
3. When the seat is warmed or before you leave the vehicle, be sure to push the
switch to turn it off.
LIC3973
HEATED SEAT SWITCHES (if so
equipped)
Instruments and controls2-51