NISSAN ALTIMA 2021 Owners Manual

NISSAN VEHICLE IMMOBILIZER
SYSTEM KEYS
You can only drive your vehicle using the
Intelligent Keys which are registered to the
NISSAN Vehicle Immobilizer System com-
ponents in your vehicle.
The mechanical key can be used for all the
locks.
Never leave the keys in the vehicle.
Additional or replacement keys:
If you still have a key, the key number is not
necessary when you need extra NISSAN
Vehicle Immobilizer System keys. Your ex-
isting key can be duplicated without know-
ing the key number. As many as four
NISSAN Vehicle Immobilizer System keys
can be used with one vehicle. You should
bring all NISSAN Vehicle Immobilizer Sys-
tem keys that you have to the NISSAN
dealer for registration. This is because the
registration process will erase the memory
of all key codes previously registered into
the NISSAN Vehicle Immobilizer System. Af-
ter the registration process, these compo-
nents will only recognize keys coded into
the NISSAN Vehicle Immobilizer System
during registration. Any key that is notgiven to the dealer at the time of registra-
tion will no longer be able to start your
vehicle.

∙ To help avoid risk of injury or deaththrough 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 un-
attended in your vehicle. Additionally,
the temperature inside a closed ve-
hicle on a warm day can quickly be-
come high enough to cause a signifi-
cant 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
1. This will only lock the corresponding
door and will not activate the security sys-
tem. To arm the security system, press
the

CHILD SAFETY REAR DOOR LOCK
Child safety locks help prevent the rear
doors from being opened accidentally, es-
pecially when small children are in the ve-
hicle.
The child safety lock levers are located on
the edge of the rear doors.
When the lever is in the unlock position
2,
the door can be opened from the outside
or the inside.
When the lever is in the LOCK position
1,
the door can be opened only from the
outside.

∙ When the vehicle is parked near a park-ing meter.
In such cases, correct the operating condi-
tions before using the Intelligent Key func-
tion or use the mechanical key.
Although the life of the battery varies de-
pending on the operating conditions, the
battery’s life is approximately two years. If
the battery is discharged, replace it with a
new one.
When the Intelligent Key battery is low, an
indicator illuminates in the vehicle informa-
tion display. For additional information, re-
fer to “Vehicle information display” in the
“Instruments and controls” section of this
manual.
Since the Intelligent Key is continuously re-
ceiving radio waves, if the key is lef t near
equipment which transmits strong radio
waves, such as signals from a TV and per-
sonal computer, the battery life may be-
come shorter.
For additional information, refer to “Battery
replacement” in the “Do-it-yourself ” section
of this manual. As many as four Intelligent Keys can be
registered and used with one vehicle. For
information about the purchase and use of
additional Intelligent Keys, it is recom-
mended that you visit a NISSAN dealer.

NOTE:∙ Request switches for all doors and
trunk can be deactivated when the
Ext. Door Switch feature is switched
to OFF using the “Vehicle Settings”
menu on the vehicle information, re-
fer to “Vehicle information display ” in
the “Instruments and controls” sec-
tion of this manual.
∙ 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 corre-
sponding door locks with the me-
chanical key even if any door is open.
∙ Doors do not lock with the door
handle request switch with the Intel-
ligent 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 an-
other Intelligent Key.

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.