2023 NISSAN ALTIMA ECU

Warning/Indicator
light (red) Name Page
or
Brake warning
light
2-10
Charge warning
light 2-11
or
Electronic parking
brake indicator
light (if so
equipped)2-11
Engine oil pres-
sure warning light
2-11
Warning/
Indicator
light (red) Name Page
Master warning
light
2-11
Seat belt warning
light and chime2-12
Security indicator
light2-12
Supplemental air
bag warning light2-12
Warning/
Indicator light
(yellow) Name Page
or
Anti-lock Braking
System (ABS)
warning light
2-12
Automatic Emer-
gency Braking
(AEB) with Pedes-
trian Detection
system warning
light 2-13
or
Electronic parking
brake warning
light (if so
equipped)
2-13
WARNING/INDICATOR LIGHTS
0-10Illustrated table of contents

WARNING
• Do not ride in a moving vehicle when
the seatback is reclined. This can be
dangerous. The shoulder belt will not
be against your body. In an accident,
you could be thrown into it and re-
ceive neck or other serious injuries.
You could also slide under the lap belt
and receive serious internal injuries. •
For the most effective protection
when the vehicle is in motion, the
seat should be upright. Always sit
well back and upright in the seat with
both feet on the floor and adjust the
seat properly. For additional infor-
mation, see “Precautions on seat belt
usage” (P. 1-12).
• Af ter adjustment, gently rock in the
seat to make sure it is securely
locked. •
Do not leave children unattended in-
side the vehicle. They could unknow-
ingly activate switches or controls or
make the vehicle move. Unattended
children could become involved in
serious accidents.
• To help avoid risk of injury or death
through unintended operation of the
vehicle and/or its systems, do not
leave children, people who require
the assistance of others or pets unat-
tended 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.
• Do not adjust the driver’s seat while
driving so full attention may be given
to vehicle operation. The seat may
move suddenly and could cause loss
of control of the vehicle.
• The seatback should not be reclined
any more than needed for comfort.
Seat belts are most effective when
the passenger sits well back and
straight up in the seat. If the seatback
is reclined, the risk of sliding under
the lap belt and being injured is
increased.
ARS1152
SEATS
1-2Safety-Seats, seat belts and supplemental restraint system

•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. To fold down either side of the rear seat,
open the trunk and pull on the knob on that
side
OA.
CENTER ARMREST
Pull the armrest down as shown.
LRS3163LRS3287
Safety-Seats, seat belts and supplemental restraint system1-7

WARNING
Head restraints/headrests supplement
the other vehicle safety systems. They
may provide additional protection
against injury in certain rear end colli-
sions. Adjustable head restraints/
headrests must be adjusted properly,
as specified in this section. Check the
adjustment af ter someone else uses
the seat. Do not attach anything to the
head restraint/headrest stalks or re-
move the head restraint/headrest. Do
not use the seat if the head restraint/
headrest has been removed. If the head
restraint/headrest was removed, rein-
stall and properly adjust the head
restraint/headrest before an occupant
uses the seating position. Failure to fol-
low these instructions can reduce the
effectiveness of the head restraints/
headrests. This may increase the risk of
serious injury or death in a collision. The illustration shows the seating posi-
tions equipped with head
restraints/headrests.

Indicates the seating position is
equipped with a head restraint.
 Indicates the seating position is
equipped with a headrest.
+ Indicates the seating position is not
equipped with a head restraint or headrest
(if applicable).
• Your vehicle is equipped with a head restraint/headrest that may be inte-
grated, adjustable or non-adjustable. • Adjustable head restraints/headrests
have multiple notches along the stalk(s)
to lock them in a desired adjustment
position.
• The non-adjustable head restraints/ headrests have a single locking notch to
secure them to the seat frame.
• Proper Adjustment: – For the adjustable type, align the headrestraint/headrest so the center of
your ear is approximately level with the
center of the head restraint/headrest.
– If your ear position is still higher than the recommended alignment, place
the head restraint/headrest at the
highest position.
• If the head restraint/headrest has been removed, ensure that it is reinstalled and
locked in place before riding in that des-
ignated seating position.
LRS2695
HEAD RESTRAINTS/HEADRESTS
1-8Safety-Seats, seat belts and supplemental restraint system

ADJUSTABLE HEAD RESTRAINT/
HEADREST COMPONENTS
1. Removable head restraint/headrest
2. Multiple notches
3. Lock knob
4. Stalks
NON-ADJUSTABLE HEAD
RESTRAINT/HEADREST
COMPONENTS
1. Removable head restraint/headrest
2. Single notch
3. Lock knob
4. Stalks
REMOVE
Use the following procedure to remove the
head restraint/headrest:
1. Pull the head restraint/headrest up tothe highest position.
2. Push and hold the lock knob.
3. Remove the head restraint/headrest from the seat.
4. Store the head restraint/headrest prop- erly in a secure place so it is not loose in
the vehicle.
LRS2300LRS2299LRS2302
Safety-Seats, seat belts and supplemental restraint system1-9

• The front passenger’s seat belt is not fas-tened and the seat is occupied by a
passenger.
• The front passenger’s seat belt is not fas- tened and objects or external force on
the passenger seat change the seat belt
reminder classification to Occupied.
The seat belt warning light will flash under
the conditions shown above until the nec-
essary seat belt is securely fastened.
A warning chime will sound for approxi-
mately 90 seconds or until one of the fol-
lowing conditions is met:
• The unbuckled front occupant’s seat belt is securely fastened.
• The seat belt reminder function in the front passenger seat no longer detects
that the front passenger seat is occupied.
• The ignition is turned off or the vehicle is placed in P (Park).
The below situations could result in the
seat belt reminder light being illuminated
and the chime sounding, even with no oc-
cupant present in the passenger seat:
• Heavy objects placed on the seat.
• Someone pushing or pulling on the front passenger seat. • An object placed under the front passen-
ger seat.
• An object placed between the seat cush- ion and center console or between the
seat cushion and the door.
• An object hanging on the seat or placed in the seatback pocket.
• A child restraint or other object pressing against the rear of the seatback.
PREGNANT WOMEN
NISSAN recommends that pregnant
women use seat belts. The seat belt should
be worn snug and always position the lap
belt as low as possible around the hips, not
the waist. Place the shoulder belt over your
shoulder and across your chest. Never run
the lap/shoulder belt over your abdominal
area. Contact your doctor for specific
recommendations.
INJURED PERSONS
NISSAN recommends that injured persons
use seat belts. Check with your doctor for
specific recommendations.
THREE-POINT TYPE SEAT BELT
WITH RETRACTOR
WARNING
• Every person who drives or rides in
this vehicle should use a seat belt at
all times. Children should be in the
rear seats and in an appropriate
restraint.
• Do not ride in a moving vehicle when
the seatback is reclined. This can be
dangerous. The shoulder belt will not
be against your body. In an accident,
you could be thrown into it and re-
ceive neck or other serious injuries.
You could also slide under the lap belt
and receive serious internal injuries.
• For the most effective protection
when the vehicle is in motion, the
seat should be upright. Always sit
well back and upright in the seat with
both feet on the floor and adjust the
seat belt properly.
Safety-Seats, seat belts and supplemental restraint system1-15

3. Position the lap belt portionlow and
snug on the hips
OBas shown.
4. Pull the shoulder belt portion toward the retractor to take up extra slack
OC.Be
sure the shoulder belt is routed over
your shoulder and across your chest.
The front passenger seat and the rear
seating positions’ three-point seat belts
have two modes of operation:
• Emergency Locking Retractor (ELR)
• Automatic Locking Retractor (ALR) The ELR mode allows the seat belt to ex-
tend and retract to allow the driver and
passengers some freedom of movement
in the seat. The ELR locks the seat belt
when the vehicle slows down rapidly or
during certain impacts.
The ALR mode (child restraint mode) locks
the seat belt for child restraint installation.
When the ALR mode is activated, the seat
belt cannot be extended again until the
seat belt tongue is detached from the
buckle and fully retracted. The seat belt re-
turns to the ELR mode af ter the seat belt
fully retracts. For additional information,
see “Child restraints” (P. 1-23).
The ALR mode should be used only for
child restraint installation. During nor-
mal seat belt use by an occupant, the ALR
mode should not be activated. If it is ac-
tivated, it may cause uncomfortable seat
belt tension. It can also change the op-
eration of the front passenger air bag.
For additional information, see “Front
passenger air bag and status light”
(P. 1-57).
WARNING
When fastening the seat belts, be cer-
tain that the seatbacks are completely
secured in the latched position. If they
are not completely secured, passen-
gers may be injured in an accident or
sudden stop.
LRS2675
1-18Safety-Seats, seat belts and supplemental restraint system

WARNING
• Af ter adjustment, release the adjust-
ment button and try to move the
shoulder belt anchor up and down to
make sure it is securely fixed in
position.
• The shoulder belt anchor height
should be adjusted to the position
best for you. Failure to do so may re-
duce the effectiveness of the entire
restraint system and increase the
chance or severity of injury in an
accident.
SEAT BELT EXTENDERS
If, because of body size or driving position, it
is not possible to properly fit the lap/
shoulder belt and fasten it, an extender
that is compatible with the installed seat
belts is available for purchase. The ex-
tender adds approximately 8 in (200 mm)
of length and may be used for either the
driver or front passenger seating position.
It is recommended that you visit a NISSAN
dealer for assistance with purchasing an
extender if an extender is required.
WARNING
• Only NISSAN seat belt extenders,
made by the same company which
made the original equipment seat
belts, should be used with NISSAN
seat belts.
• Adults and children who can use the
standard seat belt should not use an
extender. Such unnecessary use
could result in serious personal injury
in the event of an accident.
• Never use seat belt extenders to in-
stall child restraints. If the child re-
straint is not secured properly, the
child could be seriously injured or
killed in a collision or a sudden stop.
SEAT BELT MAINTENANCE
• To clean the seat belt webbing, apply a
mild soap solution or any solution rec-
ommended for cleaning upholstery or
carpet. Then wipe with a cloth and allow
the seat belts to dry in the shade. Do not
allow the seat belts to retract until they
are completely dry.
• If dirt builds up in the shoulder belt
guide of the seat belt anchors, the seat
belts may retract slowly. Wipe the shoul-
der belt guide with a clean, dry cloth. •
Periodically check to see that the seat
belt and the metal components, such
as buckles, tongues, retractors, flexible
wires and anchors, work properly. If loose
parts, deterioration, cuts or other dam-
age on the webbing is found, the entire
seat belt assembly should be replaced.
1-20Safety-Seats, seat belts and supplemental restraint system