2011 NISSAN ALTIMA ECU

NISSAN recommends that pre-teens and chil-
dren be properly restrained in a rear seat.
NISSAN also recommends that appropriate child
restraints and booster seats be properly installed
in a rear seat. If this is not possible, the occupant
classification sensor is designed to operate as
described above to turn the front passenger air
bag OFF for specified child restraints as required
by the regulations. Failing to properly secure
child restraints and to use the ALR mode (child
restraint mode) may allow the restraint to tip or
move in an accident or sudden stop. This can
also result in the passenger air bag inflating in a
crash instead of being OFF. See “Child re-
straints” earlier in this section for proper use and
installation.
If the front passenger seat is not occupied, the
passenger air bag is designed not to inflate in a
crash. However, heavy objects placed on the
seat could result in air bag inflation, because of
the object being detected by the occupant clas-
sification sensor. Other conditions could also
result in air bag inflation, such as if a child is
standing on the seat, or if two children are on the
seat, contrary to the instructions in this manual.
Always be sure that you and all vehicle occupants
are seated and restrained properly.
Using the passenger air bag status light, you can
monitor when the front passenger air bag is au-
tomatically turned OFF with the seat occupied.The light will not illuminate when the front pas-
senger seat is unoccupied.
If an adult occupant is in the seat but the passen-
ger air bag status light is illuminated (indicating
that the air bag is OFF) , it could be that the
person is a small adult, or is not sitting on the seat
properly.
If a child restraint must be used in the front seat,
the passenger air bag status light may or may not
be illuminated, depending on the size of the child
and the type of child restraint being used. If the air
bag status light is not illuminated (indicating that
the air bag might inflate in a crash) , it could be
that the child restraint or seat belt is not being
used properly. Make sure that the child restraint is
installed properly, the seat belt is used properly
and the occupant is positioned properly. If the air
bag status light is not illuminated, reposition the
occupant or child restraint in a rear seat.
If the passenger air bag status light will not illu-
minate even though you believe that the child
restraint, the seat belts and the occupant are
properly positioned, the system may be sensing
an unoccupied seat (in which case the air bag is
OFF) . Your NISSAN dealer can check that the
system is OFF by using a special tool. However,
until you have confirmed with your dealer that
your air bag is working properly, reposition the
occupant or child restraint in a rear seat.The air bag system and passenger air bag status
light will take a few seconds to register a change
in the passenger seat status. However, if the seat
becomes unoccupied, the air bag status light will
remain off.
If a malfunction occurs in the front passenger air
bag system, the supplemental air bag warning
light

2 Instruments and controls
Instrument panel...................................2-2
Meters and gauges ................................2-3
Speedometer and odometer .....................2-4
Tachometer ....................................2-5
Engine coolant temperature gauge ...............2-5
Fuel gauge ....................................2-6
Compass display (if so equipped) ...................2-6
Compass display ...............................2-7
Warning/indicator lights and audible reminders ......2-10
Checking bulbs ............................... 2-10
Warning lights ................................ 2-11
Indicator lights ................................ 2-14
Audible reminders ............................. 2-16
Vehicle information display ......................... 2-17
How to use the Vehicle Information Display .......2-17
Security systems ................................. 2-26
Vehicle security system ......................... 2-26
NISSAN vehicle immobilizer system .............2-27
Windshield wiper and washer switch ...............2-28
Switch operation .............................. 2-28
Rear window and outside mirror (if so equipped)
defroster switch .................................. 2-29
Headlight and turn signal switch ....................2-29Xenon headlights (if so equipped) . . .
............2-29
Headlight control switch ........................ 2-31
Daytime running light system (Canada only) ......2-32
Instrument brightness control ...................2-33
Turn signal switch ............................. 2-33
Fog light switch (if so equipped) ................2-34
Hazard warning flasher switch .....................2-34
Horn ............................................ 2-35
Heated seat (if so equipped) .......................2-35
Vehicle Dynamic Control (VDC) off switch ...........2-36
Power outlet ..................................... 2-36
Storage ......................................... 2-37
Map pockets .................................. 2-37
Seatback pockets (if so equipped) ..............2-37
Storage pouch (if so equipped) .................2-38
Sunglasses
holder............................. 2-38
Cup holders .................................. 2-40
Glove box .................................... 2-41
Console box .................................. 2-41
Storage box (if so equipped) ....................2-42
Covered storage box ........................... 2-42
Grocery hooks ................................ 2-42
Cargo net (if so equipped) ......................2-43

Seat belt warning light andchime
The light and chime remind you to fasten your
seat belts. The light illuminates whenever 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 illuminate if
the front passenger’s seat belt is not fastened
when the front passenger’s seat is occupied. For
7 seconds after the ignition switch is placed in
the ON position, the system does not activate the
warning light for the front passenger.
Refer to “Seat belts” in the “Safety—Seats, seat
belts and supplemental restraint system” section
for precautions on seat belt usage.

Your vehicle may have two types of security sys-
tems:● Vehicle security system
● NISSAN Vehicle Immobilizer System
VEHICLE SECURITY SYSTEM
The vehicle security system provides visual and
audible alarm signals if someone opens the doors
or trunk lid when the system is armed. It is not,
however, a motion detection type system that
activates when a vehicle is moved or when a
vibration occurs.
The system helps deter vehicle theft but cannot
prevent it, nor can it prevent the theft of interior or exterior vehicle components in all situations. Al-
ways secure your vehicle even if parking for a
brief period. Never leave your Intelligent Key in
the vehicle, 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 protection, such
as component locks, identification markers, and
tracking systems, are available at auto supply
stores and specialty shops. Your NISSAN dealer
may also offer such equipment. Check with your
insurance company to see if you may be eligible
for discounts for various theft 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. Remove the Intelligent Key from the vehicle.
3. Close all doors, hood and trunk. Lock all doors. The doors can be locked with the
Intelligent Key, door handle request switch
(if so equipped) , power door lock switch or
mechanical key.
4. Confirm that the security indicator light comes on. The security light stays on for
about 30 seconds. The vehicle security sys-
tem is now pre-armed. After about 30 sec- onds the vehicle security system automati-
cally shifts into the armed phase. The
security 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 or the keyfob, or the ignition switch is
placed in the ACC or ON position, the sys-
tem will not arm.
● Even when the driver and/or passen-
gers are in the vehicle, the system will
activate with all the doors, hood and
trunk lid locked with the ignition
switch placed in the LOCK position.
When placing the ignition switch in the
ACC or ON position, the system will be
released.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 after ap-
proximately 50 seconds. However, the alarm
reactivates if the vehicle is tampered with
again. The alarm can be shut off by unlocking
the driver’s door or trunk lid with the key, or
by pressing the

The light illuminates when the trunk lid is opened.
When the trunk lid is closed, the light goes off.
The light will go off after about 15 minutes if the
trunk lid is left open, unless the ignition switch is
placed in the ON position.
For bulb replacement procedures, refer to “Exte-
rior and interior lights” in the “Maintenance and
do-it-yourself” section of this manual.The HomeLink
Universal Transceiver provides 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 (RF)
devices such as garage doors, gates, home
and office lighting, entry door locks and se-
curity systems.
● Is powered by your vehicle’s battery. No
separate batteries are required. If the vehi-
cle’s battery is discharged or is discon-
nected, HomeLink will retain all program-
ming.
Once the HomeLink Universal Transceiver
is programmed, retain the original trans-
mitter for future programming procedures
(Example: new vehicle purchases) . Upon
sale of the vehicle, the programmed
HomeLink Universal Transceiver buttons
should be erased for security purposes. For
additional information, refer to “Program-
ming HomeLink” later in this section.

DOOR LOCKS/UNLOCKS
PRECAUTION
●Do not push the door handle request switch
with the Intelligent Key held in your hand as
illustrated. The close distance to the door
handle will cause the Intelligent Key system
to have difficulty recognizing that the Intelli-
gent Key is outside the vehicle.
● After locking with the door handle request
switch, verify the doors are securely locked
by testing them. ●
To prevent the Intelligent Key from being left
inside the vehicle, make sure you carry the
Intelligent Key with you and then lock the
doors.
● Do not pull the door handle before pushing
the door handle request switch. The door
will be unlocked but will not open. Release
the door handle once and pull it again to
open the door.
NISSAN INTELLIGENT KEY™
OPERATION
You can lock or unlock the doors without taking
the key out of your pocket or bag.
When you carry the Intelligent Key with you, you
can lock or unlock all doors by pushing the door
handle request switch within the range of opera-
tion.

The interior light timer illuminates for 30 seconds
when a door is unlocked and the room light
switch is in the DOOR position.
The interior light can be turned off without waiting
for 30 seconds by performing one of the follow-
ing operations.● Placing the ignition switch in the ON posi-
tion.
● Locking the doors with the remote controller.
● Switching the room light switch to the OFF
position.
Opening the trunk lid
1. Push the trunk opener request switchAfor
more than 1 second while carrying the Intel-
ligent Key with you.
2. The trunk will unlatch. A chime will sound 4 times.
3. Raise the trunk lid to open the trunk.
Lockout protection
To prevent the Intelligent Key from being acci-
dentally locked in the trunk, lockout protection is
equipped with the Intelligent Key. 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 operate all
door locks using the remote keyless function of
the Intelligent Key. The remote keyless function
can operate at a distance of 33 ft (10 m) away
from the vehicle. The operating distance de-
pends upon the conditions around the vehicle.
The remote keyless entry function will not func-
tion 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 dis-
charged.

CAUTION
Listed below are conditions or occur-
rences which will damage the Intelligent
Key:
●Do not allow the Intelligent Key, which
contains electrical components, to
come into contact with water or salt
water. This could affect the system
function.
● Do not drop the Intelligent Key.
● Do not strike the Intelligent Key sharply
against another object.
● Do not change or modify the Intelligent
Key.
● Wetting may damage the Intelligent
Key. If the Intelligent Key gets wet, im-
mediately wipe until it is completely dry.
● Do not place the Intelligent Key for an
extended period in an area where tem-
peratures exceed 140°F (60°C) .
● Do not attach the Intelligent Key with a
key holder that contains a magnet.
● Do not place the Intelligent Key near
equipment that produces a magnetic
field, such as a TV, audio equipment and
personal computers. If an Intelligent Key is lost or stolen, NISSAN
recommends erasing the ID code of that Intelli-
gent Key from the vehicle. This may prevent the
unauthorized use of the Intelligent Key to operate
the vehicle. For information regarding the erasing
procedure, contact a NISSAN dealer.
OPERATING RANGE
The Intelligent Key functions can only be used
when the Intelligent Key is within the specified
operating range.
When the Intelligent Key battery is discharged or
strong radio waves are present near the operat-
ing location, the Intelligent Key system’s operat-
ing range becomes narrower, and the Intelligent
Key may not function properly.
The operating range is within 33 ft (10 m) of the
vehicle.
HOW TO USE THE REMOTE
KEYLESS ENTRY FUNCTION
The remote keyless entry function can operate all
door locks using the remote keyless function of
the Intelligent Key. The remote keyless function
can operate at a distance of 33 ft (10 m) away
from the vehicle. The operating distance de-
pends upon the conditions around the vehicle.
The remote keyless entry function will not func-
tion 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 dis-
charged.