2019 NISSAN SENTRA ECU

orAnti-lock Braking System
(ABS) warning lightNISSAN Intelligent Key® warning light (if so
equipped)Front passenger air bag status light
Automatic Emergency Braking (AEB) sys-
tem warning light (if so equipped)orPower steering warning lightHigh beam indicator light (blue)
orBrake warning lightSeat belt warning light and chimeMalfunction Indicator Light (MIL)
Charge warning lightShif t P (Park) warning light (if so equipped)Overdrive OFF indicator light (if so
equipped)
Door open warning light (if so equipped)Supplemental air bag warning lightSecurity indicator light
Engine oil pressure warning light (if so
equipped)Continuously Variable Transmission (CVT)
position indicator light (CVT models) (if so
equipped)Side light and headlight indicator light
(green)
Low fuel warning light (if so equipped)Cruise indicator light (if so equipped)Slip indicator light
Low tire pressure warning light (if so
equipped)ECO mode indicator light (if so equipped)SPORT mode indicator light (if so
equipped)
Low windshield-washer fluid warning light
(if so equipped)Engine start operation indicator light (if so
equipped)Turn signal/hazard indicator lights
Master warning light (if so equipped)Front fog light indicator light (if so
equipped)Vehicle Dynamic Control (VDC) OFF indi-
cator light
WARNING LIGHTS, INDICATOR LIGHTS
AND AUDIBLE REMINDERS
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Low brake fluid warning light
When the ignition switch is placed in the ON
position, the light warns of a low brake fluid
level. If the light comes on while the engine
is running with the parking brake not ap-
plied, stop the vehicle and perform the fol-
lowing:1. Check the brake fluid level. Add brake fluid as necessary. For additional infor-
mation, refer to “Brake fluid” in the “Do-
it-yourself ” section of this manual.
2. If the brake fluid level is correct, have the warning system checked. It is rec-
ommended that you visit a NISSAN
dealer for this service.
WARNING
∙ Your brake system may not be work-ing properly if the warning light is on.
Driving could be dangerous. If you
judge it to be safe, drive carefully to
the nearest service station for repairs.
Otherwise, have your vehicle towed
because driving it could be
dangerous. ∙ Pressing the brake pedal with the en-
gine stopped and/or a low brake fluid
level may increase your stopping dis-
tance and braking will require greater
pedal effort as well as pedal travel.
∙ If the brake fluid level is below the MINIMUM or MIN mark on the brake
fluid reservoir, do not drive until the
brake system has been checked. It is
recommended that you visit a NISSAN
dealer for this service.
Anti-lock Braking System (ABS) warning
indicator
When the parking brake is released and the
brake fluid level is sufficient, if both the
brake warning light and the ABS warning
light illuminate, it may indicate the ABS is
not functioning properly. Have the brake
system checked and, if necessary, repaired.
It is recommended that you visit a NISSAN
dealer for this service. Avoid high-speed
driving and abrupt braking. For additional
information, refer to “Anti-lock Braking Sys-
tem (ABS) warning light” in this section.
Charge warning light
If this light comes on while the engine is
running, it may indicate the charging sys-
tem is not functioning properly. Turn the
engine off and check the generator belt. If
the belt is loose, broken, missing, or if the
light remains on, have your vehicle serviced
immediately. It is recommended that you
visit a NISSAN dealer for this service.
CAUTION
Do not continue driving if the generator
belt is loose, broken or missing.
Door open warning light (if so equipped)
This light comes on when any of the doors
are not closed securely while the ignition
switch is in the ON position.
Engine oil pressure warning light (if so equipped)
This light warns of low engine oil pressure. If
the light flickers or comes on during nor-
mal driving, pull off the road in a safe area,
stop the engine immediatelyand call a
NISSAN dealer or other authorized repair
shop.
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∙ When the power steering warninglight 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 system is op-
erational.
If the power steering warning light illumi-
nates while the engine is running, it may
indicate the power steering system is not
functioning properly and may need servic-
ing. Have the power steering system
checked. It is recommended 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.
Seat belt warning light and
chime
The light and chime remind you to fasten
your seat belts. The light illuminates when-
ever the ignition switch is placed in the ON
or START position and remains illuminated
until the driver’s seat belt is fastened. At the
same time, the chime sounds for about
6 seconds unless the driver’s seat belt is
securely fastened.
The seat belt warning light may also illumi-
nate if the front passenger’s seat belt is not
fastened when the front passenger’s seat
is occupied. For 7 seconds af ter the ignition
switch is placed in the ON position, the sys-
tem does not activate the warning light for
the front passenger.
For additional information, refer to “Seat
belts” in the “Safety—Seats, seat belts and
supplemental restraint system” section of
this manual.
Shif t P (Park) warning light(if so equipped)
This light blinks red and the key reminder
chime sounds if the shif t lever is in any
position other than P (Park) and the ignition
switch is in the OFF position. Return the
shif t lever to P (Park) with the ignition
switch in the OFF position and the light will
turn off. Place the ignition switch in the
LOCK position and the chime will turn off.
For additional information, refer to “NISSAN
Intelligent Key®” in the “Pre-driving checks
and adjustments” section of this manual.
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 seat belt systems need
servicing.
∙ The supplemental air bag warning light remains on af ter approximately 7 sec-
onds.
Instruments and controls2-19

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.
Overdrive OFF indicatorlight (if so equipped)
The overdrive OFF indicator light illumi-
nates when the overdrive OFF mode is se-
lected.
For additional information, refer to “Driving
the vehicle” in the “Starting and driving” sec-
tion of this manual.
Security indicator light
For vehicles without Intelligent Key: This
light blinks whenever the ignition switch is
placed in the LOCK, OFF or ACC position. For vehicles with Intelligent Key: This light
blinks when the ignition switch is placed in
the LOCK position with the key removed
from the ignition switch.
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 will blink when the Vehicle
Dynamic Control (VDC) system is operat-
ing, thus alerting that the vehicle is nearing
its traction limits. The road surface may be
slippery.
SPORT mode indicatorlight (if so equipped)
This light illuminates and then turns off
when the ignition switch is placed in the ON
position, and when the SPORT mode is se-
lected.
For additional information, refer to “SPORT
mode switch” in the “Starting and driving”
section of this manual.
Turn signal/hazard indicator 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 OFF switch is pushed to off. This indi-
cates the VDC system has been turned off.
Push the VDC OFF switch again or restart
the engine and the system will operate
normally. For additional information, refer
to “Vehicle Dynamic Control (VDC) system”
in the “Starting and driving” section of this
manual.
2-22Instruments and controls

The VDC OFF indicator light also comes on
when you place the ignition switch in the
ON position. The light will turn off af ter
about 2 seconds if the system is opera-
tional. 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.
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.
Key reminder chime
A chime sounds if the driver’s door is
opened while the key is lef t in the ignition
switch. Remove the key and take it with you
when leaving the vehicle.
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 (if so equipped)
The Intelligent Key door buzzer sounds if
any one of the following improper opera-
tions is found.
∙ The ignition switch is not returned to the LOCK position when locking the
doors.
∙ The Intelligent Key is lef t inside the ve- hicle when locking the doors.
∙ The Intelligent Key is taken outside the vehicle when operating the vehicle.
∙ Any doors are not closed securely when locking the doors.
When the buzzer sounds, be sure to check
both the vehicle and the Intelligent Key. For
additional information, refer to “NISSAN In-
telligent Key®” in the “Pre-driving checks
and adjustments” section of this manual.
Parking brake reminder chime
A chime sounds if the parking brake is set
and the vehicle is driven. The chime will
stop if the parking brake is released or the
vehicle speed returns to zero.
Instruments and controls2-23

CVT Error: See Owner’s Manual (if so
equipped)
This warning illuminates when there is a
problem with the CVT system. If this warn-
ing comes on, have the system checked. It
is recommended that you visit a NISSAN
dealer for this service.
Illumination indicator
This indicator appears when the vehicle
information display screen brightness is
being adjusted.
Outside Temperature Display
The outside temperature display appears
in the center region of the vehicle informa-
tion display.
Low Outside Temperature (if so
equipped)
This warning appears if the outside tem-
perature is below 37°F (3°C). The tempera-
ture can be changed to display in Celsius or
Fahrenheit. For additional information, re-
fer to “Settings” in this section.Unavailable: Front Radar Obstruction (if
so equipped)
This warning appears when the Intelligent
Cruise Control (ICC) system or the Auto-
matic Emergency Braking (AEB) system
becomes unavailable because the front ra-
dar is obstructed. For additional informa-
tion, refer to “Intelligent Cruise Control (ICC)”
or “Automatic Emergency Braking (AEB)” in
the “Starting and driving” section of this
manual.
ECO mode indicator (if so equipped)
This indicator shows when the ECO mode
is engaged.
For additional information, refer to “ECO
mode” in the “Starting and driving” section
of this manual.
Vehicle ahead detection indicator (if so
equipped)
This indicator shows when the Automatic
Emergency Braking (AEB) system is en-
gaged and has detected a vehicle.
For additional information, refer to “Auto-
matic Emergency Braking (AEB)” in the
“Starting and driving” section of this
manual.
Your vehicle may have two types of security
systems:
∙ Vehicle security system (if so equipped)
∙ NISSAN Vehicle Immobilizer System
VEHICLE SECURITY SYSTEM (if so
equipped)
The vehicle security system provides visual
and audible alarm signals if someone
opens the doors when the system is
armed. It is not, however, a motion detec-
tion type system that activates when a ve-
hicle is moved or when a vibration occurs.
LIC0301
SECURITY SYSTEMS
Instruments and controls2-35

The system helps detect vehicle thef t but
cannot prevent it, nor can it prevent the
thef t of interior or exterior vehicle compo-
nents in all situations. Always secure your
vehicle even if parking for a brief period.
Never leave your keys in the ignition, and
always lock the vehicle when unattended.
Be aware of your surroundings, and park in
secure, well-lit areas whenever possible.
Many devices offering additional protec-
tion, such as component locks, identifica-
tion markers, and tracking systems, are
available at auto supply stores and spe-
cialty shops. A NISSAN dealer may also offer
such equipment. Check with your insur-
ance company to see if you may be eligible
for discounts for various thef t protection
features.
How to arm the vehicle security
system
1. Close all windows.(The system can be
armed even if the windows are open.)
2. Place the ignition switch in the LOCK position and remove the key. 3. Close all doors. Lock all doors. The
doors can be locked with:
∙ the power door lock switch (if the door is opened, locked and then
closed).
∙ the key — master or mechanical (In- telligent Key models).
∙ any request switch (Intelligent Key models).
∙ the key fob or Intelligent Key.
Key fob and Intelligent Key operation:
∙ Press the
button. All doors
lock. The hazard lights flash twice
and the horn beeps once to indicate
all doors are locked.
∙ When the
button is pressed
with all doors locked, the hazard
lights flash twice and the horn beeps
once as a reminder that the doors
are already locked.
The horn may or may not beep. For
additional information, refer to “Silenc-
ing the horn beep feature” in the “Pre-
driving checks and adjustments” sec-
tion in this manual. 4.
Confirm that theindicator light
comes on. The
light stays on for
about 30 seconds. The vehicle security
system is now pre-armed. Af ter about
30 seconds the vehicle security system
automatically shif ts into the armed
phase. The
light begins to flash
once every 3 seconds. If, during the 30-
second pre-arm time period, the driver’s
door is unlocked by the key, a request
switch, the key fob or Intelligent Key, or if
the ignition switch is placed in the ACC or
ON position, the system will not arm.
∙If the key is turned slowly when locking
the driver’s door, the system may not
arm. Furthermore, if the key is turned
beyond the vertical position toward
the unlock position to remove the key,
the system may be disarmed when the
key is removed. If the indicator light
fails to glow for a period of time, unlock
the door once and lock it again.
∙ Even when the driver and/or passen-
gers are in the vehicle, the system will
arm with all doors closed and locked
with the ignition switch placed in the
OFF position.
2-36Instruments and controls

Vehicle security system activation
The vehicle security system will give the
following alarm:∙ The headlights blink and the horn sounds intermittently.
∙ The alarm automatically turns off af ter a period of time. However, the alarm
reactivates if the vehicle is tampered
with again. The alarm can be shut off by
unlocking the driver’s door with the key,
a request switch, by pressing the
button on the key fob or Intelligent Key
or placing the ignition switch in the ON
or ACC position.
The alarm is activated by:
∙ opening a door without using the key, a request switch, key fob or Intelligent Key
(even if the door is unlocked by using
the inside lock knob or the power door
lock switch).
How to stop an activated alarm
The alarm stops only by unlocking the driv-
er’s door by pressing the
button on
the key fob or Intelligent Key, or by unlock-
ing all doors with any request switch (Intel-
ligent Key models) or placing the ignition
switch in the ON or ACC position.
NISSAN VEHICLE IMMOBILIZER
SYSTEM
The NISSAN Vehicle Immobilizer System
will not allow the engine to start without
the use of a registered key.
If the engine fails to start using a registered
key (for example, when interference is
caused by another registered key, an auto-
mated toll road device or automatic pay-
ment device on the key ring), restart the
engine using the following procedures:
1. Leave the ignition switch in the ON po- sition for approximately 5 seconds.
2. Place the ignition switch in the OFF or LOCK position and wait approximately
10 seconds.
3. Repeat steps 1 and 2.
4. Restart the engine while holding the device (which may have caused the in-
terference) separate from the regis-
tered key.
If the no start condition re-occurs, NISSAN
recommends placing the registered key on
a separate key ring to avoid interference
from other devices.
Never leave these keys in the vehicle. FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any interfer-
ence received, including interference
that may cause undesired operation.
NOTE:
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s author-
ity to operate the equipment.
For Canada:
This device complies with Industry
Canada licence-exempt RSS standard(s).
Operation is subject to the following two
conditions: (1) this device may not cause
interference, and (2) this device must ac-
cept any interference received, including
interference that may cause undesired
operation of the device.
Instruments and controls2-37