2018 NISSAN SENTRA ECU

∙ the power door lock switch (if thedoor 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 the
indicator 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 driv-
er’s door is unlocked by the key, a re-
quest 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 lock-
ing 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 indi-
cator 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.
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.
Instruments and controls2-37

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.
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.
This function indicates the NISSAN Vehicle
Immobilizer System is operational.
LIC0474
2-38Instruments and controls

The light illuminates when the trunk lid is
opened. When the trunk lid is closed, the
light goes off.
The light will go off af ter a period of time if
the trunk lid is lef t open, unless the ignition
switch is placed in the ON position.
For additional information, refer to “Exterior
and interior lights” in the “Do-it-yourself ”
section of this manual.The HomeLink® Universal Transceiver pro-
vides a convenient way to consolidate the
functions of up to three individual hand-
held transmitters into one built-in device.
HomeLink® Universal Transceiver:
∙ Will operate most radio frequency de- vices such as garage doors, gates,
home and office lighting, entry door
locks and security systems.
∙ Is powered by your vehicle’s battery. No separate batteries are required. If the
vehicle’s battery is discharged or is dis-
connected, HomeLink® will retain all
programming.
When the HomeLink® Universal Trans-
ceiver is programmed, retain the original
transmitter for future programming pro-
cedures (Example: new vehicle pur-
chases). Upon sale of the vehicle, the
programmed HomeLink® Universal
Transceiver buttons should be erased for
security purposes. For additional infor-
mation, refer to “Programming
HomeLink®” in this section.WARNING
∙ Do not use the HomeLink® Universal Transceiver with any garage door
opener that lacks safety stop and re-
verse features as required by federal
safety standards. (These standards
became effective for opener models
manufactured af ter April 1, 1982). A
garage door opener which cannot de-
tect an object in the path of a closing
garage door and then automatically
stop and reverse, does not meet cur-
rent federal safety standards. Using a
garage door opener without these
features increases the risk of serious
injury or death.
∙ During the programming procedure your garage door or security gate will
open and close (if the transmitter is
within range). Make sure that people
or objects are clear of the garage door,
gate, etc. that you are programming.
TRUNK LIGHT HOMELINK® UNIVERSAL
TRANSCEIVER (if so equipped)
Instruments and controls2-63

Locking doors
1. Move the shif t lever to the P (Park) posi-tion (Continuously Variable Transmis-
sion only), place the ignition switch in
the LOCK position and make sure you
carry the Intelligent Key with you.
2. Close all doors.
3. Push any door handle request switch
1while carrying the Intelligent Key
with you.
4. All doors and the trunk will lock.
5. The hazard warning lights flash twice and the outside chime sounds twice. NOTE:
∙ Doors and trunk lid lock with the door handle request switch while the ignition
switch is not in the LOCK position.
∙ Doors and trunk lid do not lock by push- ing the door handle request switch
while any door is open. However, doors
lock with the mechanical key even if any
door is open. ∙ Doors and trunk lid do not lock with the
door handle request switch with the In-
telligent Key inside the vehicle; a beep
sounds to warn you. However, when an
Intelligent Key is inside the vehicle,
doors can be locked with another Intel-
ligent Key.
CAUTION
∙ Af ter locking the doors using the re-quest switch, make sure that the
doors have been securely locked by
operating the door handle or the
trunk opener switch.
∙ When locking the doors using the re- quest switch, make sure to have the
Intelligent Key in your possession be-
fore operating the request switch to
prevent the Intelligent Key from being
lef t in the vehicle.
∙ The request switch is operational only when the Intelligent Key has been de-
tected by the Intelligent Key system.
LPD2075LPD2165
Pre-driving checks and adjustments3-15

When all doors are locked and the trunk lid
is closed with the Intelligent Key inside the
trunk, the outside buzzer will sound and the
trunk will open.
HOW TO USE THE REMOTE
KEYLESS ENTRY FUNCTION
The remote keyless entry function can op-
erate all door locks using the remote key-
less function of the Intelligent Key. The re-
mote keyless function can operate at a
distance of 33 f t (10 m) away from the ve-
hicle. The operating distance depends
upon the conditions around the vehicle.
The remote keyless entry function will not
function under the following conditions:∙ The Intelligent Key is not within the op- erational range.
∙ The doors or the trunk are open or not closed securely.
∙ The Intelligent Key battery is dis- charged.
CAUTION
When locking the doors using the Intel-
ligent Key, be sure not to leave the key in
the vehicle.
Locking doors
1. Place the ignition switch in the LOCK
position.
2. Close all doors.
3. Press the
button on the Intelli-
gent Key.
4. The hazard warning lights flash twice and the horn beeps once.
5. All doors and the trunk lid will be locked.
CAUTION
Af ter locking the doors using the Intel-
ligent Key, be sure that the doors have
been securely locked by operating the
door handles.
WPD0359
3-18Pre-driving checks and adjustments

TROUBLESHOOTING GUIDE
(Continuously Variable
Transmission only)
SymptomPossible CauseRemedy
When pushing the ignition switch to
stop the engine The P (Park) warning light in the instru-
ment panel illuminates and the inside
chime sounds continuously. The shif t lever is not in the P (Park)
position.
Make sure that the shif t lever is in the
P (Park) position.
When opening the driver’s door A warning chime sounds continuously. The ignition switch is in the ACC
position.Place the ignition switch in the OFF
position.
When pushing the door handle re-
quest switch to lock the door The outside chime sounds for a few
seconds. The Intelligent Key is inside the trunk. Be sure to carry the Intelligent Key
with you.
The Intelligent Key is inside the vehicle. Be sure to carry the Intelligent Key with you.
When closing the doors The P (Park) warning light in the instru-
ment panel illuminates and the out-
side chime sounds continuously. The ignition switch is in the ACC or
OFF position and the shif t lever is not
in the P (Park) position.Make sure that the shif t lever is in the
P (Park) position and place the ignition
switch in the OFF position.
The outside chime sounds for approxi-
mately 3 seconds and all doors unlock. The Intelligent Key is in the vehicle or
trunk.Be sure to carry the Intelligent Key
with you.
When opening the driver’s door A warning chime sounds continuously. The ignition switch is in the ACC
position.Place the ignition switch in the OFF
position.
When closing the trunk lid The outside chime sounds for approxi-
mately 10 seconds and the trunk lid
opens. The Intelligent Key is inside the trunk.Be sure to carry the Intelligent Key
with you.
When pressing the
button on
the Intelligent Key to the lock the door The outside chime sounds for a few
seconds and all the doors unlock.
The Intelligent Key is inside the trunk. Be sure to carry the Intelligent Key
with you.
The Intelligent Key is inside the vehicle. Be sure to carry the Intelligent Key with you.
A door is not closed securely. Close the doors securely.
Pre-driving checks and adjustments3-23

TRUNK LID RELEASE SWITCH
WARNING
∙ Do not drive with the trunk lid open.This could allow dangerous exhaust
gases to be drawn into the vehicle. For
additional information, refer to “Ex-
haust gas (carbon monoxide)” in the
“Starting and driving” section of this
manual. ∙ Closely supervise children when they
are around cars to prevent them from
playing and becoming locked in the
trunk where they could be seriously
injured. Keep the car locked, with the
rear seatback and trunk lid securely
latched when not in use, and prevent
children’s access to car keys.
To open the trunk lid, push the opener
switch down in the direction of the arrow
as illustrated.
To close the trunk lid, lower and push the
trunk lid down securely.
NOTE:
You can open the trunk lid with the Intel-
ligent Key. For additional information,
refer to “NISSAN Intelligent Key®” in this
section.
INTERIOR TRUNK LID RELEASE
WARNING
Closely supervise children when they
are around cars to prevent them from
playing and becoming locked in the
trunk where they could be seriously in-
jured. Keep the car locked, with the rear
seatback and trunk lid securely latched
when not in use, and prevent children’s
access to car keys.
Instrument panel
LPD2119LPD2558
TRUNK LID
3-26Pre-driving checks and adjustments

The interior trunk lid release mechanism
provides a means of escape for children
and adults in the event they become
locked inside the trunk.
To open the trunk from the inside, pull the
illuminated release handle until the lock re-
leases and push up on the trunk lid. The
release handle is made of a material that
glows in the dark af ter a brief exposure to
ambient light.
The handle is located inside the trunk com-
partment on the interior of the trunk lid.
INTERIOR TRUNK ACCESS
The trunk can be accessed from the pas-
senger side of the rear seat.1. Move the front passenger seat to the most forward position.
2. Open the access cover on the rear par- cel shelf.
3. Push down on the button on the rear parcel shelf.
4. Fold down the passenger’s side seat- back.
WARNING
∙ Never allow anyone to ride in thecargo area or on the rear seat when it
is in the fold-down position. Use of
these areas by passengers without
proper restraints could result in seri-
ous injury or death in an accident or
sudden stop.
∙ 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.
∙ When returning the seatbacks to the upright position, be certain they are
completely secured in the latched po-
sition. If they are not completely se-
cured, passengers may be injured in
an accident or sudden stop.
∙ Closely supervise children when they are around cars to prevent them from
playing and becoming locked in the
trunk where they could be seriously
injured. Keep the car locked, with the
rear seatback and trunk lid securely
latched when not in use, and prevent
children’s access to car keys.
OPENER OPERATION
The fuel-filler door release is located below
the instrument panel. To open the fuel-filler
door, pull the release. To lock, close the fuel-
filler door securely.
LPD2658
FUEL-FILLER DOOR
Pre-driving checks and adjustments3-27