2023 NISSAN ALTIMA ECU

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 ve-
hicle's battery is discharged or is discon-
nected, 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, see “Programming HomeLink®”
(P. 2-81).WARNING
• Your vehicle's engine should be
turned off while programming the
HomeLink® Universal Transceiver. For
additional information, see “Push-
button ignition switch” (P. 5-13). Do
not breathe exhaust gases; they con-
tain colorless and odorless carbon
monoxide. Carbon monoxide is dan-
gerous. It can cause unconscious-
ness or death.
• 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
detect an object in the path of a clos-
ing garage door and then automati-
cally stop and reverse does not meet
current federal safety standards. Us-
ing 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.
PROGRAMMING HOMELINK®
If you have any questions or are having
difficulty programming your HomeLink®
buttons, refer to the HomeLink® web site at:
www.homelink.com or call 1-800-355-3515.
NOTE:
Place the ignition switch in the ON posi-
tion (without starting the engine) when
programming HomeLink®. It is also rec-
ommended that a new battery be placed
in the hand-held transmitter of the de-
vice being programmed to HomeLink®
for quicker programming and accurate
transmission of the radio frequency.
HOMELINK® UNIVERSAL
TRANSCEIVER (if so equipped)
Instruments and controls2-81

•To help avoid risk of injury or death
through unintended operation of the
vehicle and/or its systems, including
entrapment in windows and/or inad-
vertent door lock activation, do not
leave children, people who require
the assistance of others and/or pets
unattended in your vehicle. Addition-
ally, the temperature inside a closed
vehicle on a warm day can quickly
become high enough to cause a sig-
nificant risk of injury or death to
people and pets.
LOCKING WITH KEY
To lock the door using the mechanical key,
turn the key toward the rear of the vehicle
O1. This will only lock the corresponding
door and will not activate the security sys-
tem. To arm the security system, press the
button on the Intelligent Key.
To unlock the corresponding door using
the mechanical key, turn the key toward
the front of the vehicle
O2. This will only
unlock the corresponding door and will not
disarm the security system. For additional information, see “Security
systems” (P. 2-52).
LPD2919
Driver's side
Pre-driving checks and adjustments3-5

NOTE:
• Request switches for all doors andtrunk can be deactivated when the Ext.
Door Switch or I-Key Door Lock feature
is switched to OFF using the “Vehicle
Settings” menu on the vehicle infor-
mation, see “Vehicle information dis-
play - 5 inch (13 cm) Type A (if so
equipped)” (P. 2-18) or “Vehicle infor-
mation display - 7 inch (18 cm) Type B (if
so equipped)” (P. 2-34).
• Doors lock with the door handle re- quest switch while the ignition switch
is not in the LOCK position. • Doors lock by pushing the driver’s side
door handle request switch while any
door is open. However, the correspond-
ing door locks with the mechanical key
even if any door is open.
• Doors do not lock with the door handle request switch with the Intelligent Key
inside the vehicle and a beep sounds to
warn you. However, when an Intelligent
Key is inside the vehicle, doors can be
locked with another Intelligent Key.
WARNING
Af ter locking the doors using the re-
quest switch, make sure that the doors
have been securely locked by operat-
ing the door handles. Failure to follow
these instructions may result in inad-
vertently unlocking the doors, which
may decrease the safety and security
of your vehicle.
CAUTION
• When locking the doors using the re-
quest switch, make sure to have the
Intelligent Key in your possession
before 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 detected by the Intelligent Key
system.
Lockout protection
To prevent the Intelligent Key from being
accidentally locked in the vehicle, lockout
protection is equipped with the Intelligent
Key.
When the driver’s side door is open, the
doors are locked and then the Intelligent
Key is put inside the vehicle and all the
doors are closed; the lock will automati-
cally unlock and the door chime sounds.
NOTE:
The doors may not lock when the Intelli-
gent Key is in the same hand that is op-
erating the request switch to lock the
door. Put the Intelligent Key in a purse,
pocket or your other hand.
LPD2165
Pre-driving checks and adjustments3-11

HOW TO USE THE REMOTE
KEYLESS ENTRY FUNCTION
1.(remote engine start) button
2.
(lock) button
3.
(unlock) button
4.
(trunk) button
5.
(panic) button 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:
• When the Intelligent Key is not within the
operational range.
• When the doors or the trunk are open or not closed securely.
• When the Intelligent Key battery is discharged.
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 indicator lights flash twice
and the horn beeps once.
5. All doors will be locked.
WARNING
Af ter locking the doors using the Intel-
ligent Key, be sure that the doors have
been securely locked by operating the
door handles. Failure to follow these in-
structions may result in inadvertently
unlocking the doors, which may de-
crease the safety and security of your
vehicle.
Unlocking doors
1. Press thebutton on the Intelligent
Key.
2. The hazard indicator lights flash once and the driver’s door will unlock.
3. Press the
button again within 1
minute to unlock all doors and trunk.
LPD3603
3-14Pre-driving checks and adjustments

• The shif t lever is moved out of park.
• The alarm sounds due to illegal entry intothe vehicle.
• The ignition switch is pushed without an Intelligent Key in the vehicle.
• The ignition switch is pushed with an In- telligent Key in the vehicle but the brake
pedal is not depressed.
CONDITIONS THE REMOTE ENGINE
START WILL NOT WORK
The Remote Engine Start will not operate if
any of the following conditions are present:
• The ignition switch is placed in the ONposition.
• The hood is not securely closed.
• The hazard indicator lights are on.
• The engine is still running. The engine must be completely stopped. Wait at
least 6 seconds if the engine goes from
running to off. This is not applicable when
extending engine run time.
• The
button is not pressed and held
for at least 2 seconds. • The
button is not pressed and held
within 5 seconds of pressing the lock
button.
• The brake is pressed.
• The doors are not closed and locked.
• The trunk is open.
• The Key System Error remains solid in the vehicle information display.
• The alarm sounds due to illegal entry into the vehicle.
• Two Remote Engine Starts, or a single Remote Engine Start with an extension,
have already been used.
• The vehicle is not in P (Park).
• There is a detected registered key already inside of the vehicle.
• The Remote Engine Start feature has been switched to the OFF using the “Ve-
hicle Settings” menu on the vehicle infor-
mation display. For additional informa-
tion, see “Vehicle information display - 5
inch (13 cm) Type A (if so equipped)”
(P. 2-18) or “Vehicle information display - 7
inch (18 cm) Type B (if so equipped)”
(P. 2-34). The Remote Engine Start may display a
warning or indicator in the vehicle informa-
tion display. For additional information, see
“Vehicle information display - 5 inch (13 cm)
Type A (if so equipped)” (P. 2-18) or “Vehicle
information display - 7 inch (18 cm) Type B (if
so equipped)” (P. 2-34).
Pre-driving checks and adjustments3-21

1. Pull the hood lock release handleO1lo-
cated below the driver's side instrument
panel; the hood springs up slightly.
2. To open the hood, push the lever
O2un-
derneath the front of the hood upwards
with your fingertips as illustrated and
raise the hood.
3. Remove the support rod from the clamp
O3.
4. Insert the support rod
O4into the slot on
the passenger side of the hood.
5. When closing the hood, return the sup- port rod to its original position, lower the hood to approximately 12 in (30 cm)
above the latch and release it. This al-
lows proper engagement of the hood
latch.
WARNING
• Make sure the hood is completely
closed and latched before driving.
The vehicle should only ever be oper-
ated with the hood securely closed.
• If you see steam or smoke coming
from the engine compartment, to
avoid injury do not open the hood.
OPENER OPERATION
WARNING
• Do not drive with the trunk lid open.
This could allow dangerous exhaust
gases to be drawn into the vehicle.
For additional information, see “Ex-
haust gas (carbon monoxide)”
(P. 5-4).
LPD3011LPD3289
Instrument panel
HOOD TRUNK LID
3-22Pre-driving checks and adjustments

•Closely supervise children when they
are around cars to prevent them
from playing and becoming locked in
the trunk where they could be seri-
ously 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 perform one of the
following af ter unlocking all doors:
• Press the button on the instrument
panel.
• Press the button on the Intelligent Key.
• Push the trunk opener switch
OA.
To close the trunk lid, lower and push the
trunk lid down securely.
NOTE:
Request switches for all doors and trunk
can be deactivated when the Ext Door
Switch or I-Key Door Lock feature is
switched to OFF in the “Vehicle Settings”
of the vehicle information display. For
additional information, see “Vehicle in-
formation display - 5 inch (13 cm) Type A
(if so equipped)” (P. 2-18) or “Vehicle in-
formation display - 7 inch (18 cm) Type B
(if so equipped)” (P. 2-34).
WPD0364
Intelligent Key
LPD2866
Trunk opener switch
Pre-driving checks and adjustments3-23

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. 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. Slide the handle in the direction of the arrow.
4. Fold down the passenger’s side seatback.
For additional information, see “Folding
rear seat” (P. 1-6).
WARNING
• Never allow anyone to ride in the
cargo 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 slid-
ing or shif ting. Do not place cargo
higher than the seatbacks. In a sud-
den 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
position. If they are not completely
secured, 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 seri-
ously 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.
LPD2081
3-24Pre-driving checks and adjustments