2019 NISSAN ALTIMA sensor

Driver Assistance (if so equipped)
The driver assistance menu allows the user
to change the settings for driving, parking,
and braking aids.
Menu itemResult
Emergency Brake Displays available emergency braking options.
Front Allows user to turn the front emergency braking system on or off. For additional information, refer to “Intelligent
Emergency Braking” , “Intelligent Emergency Braking with Pedestrian Detection” and “Intelligent Forward Collision
Warning” in the “Starting and driving” section of this manual.
Lane (if so equipped) Displays available lane options.
Lane Departure Warning Allows user to turn the Lane Departure Warning (LDW) system on or off. For additional information, refer to “Lane
Departure Warning (LDW)” in the “Starting and driving” section of this manual.
Blind Spot (if so equipped) Displays available blind spot options.
Blind Spot Warning Allows user to turn the Blind Spot Warning (BSW) system on or off. For additional information, refer to “Blind Spot
Warning (BSW)” in the “Starting and driving” section of this manual.
Side Indicator Brightness Allows user to change the brightness of the side indicator.
Parking Aids (if so equipped) Displays available parking aids.
Auto Show Sonar Allows user to auto display the sonar. For additional information, refer to “Rear Sonar System (RSS)” in the “Starting
and driving” section of this manual.
Rear Allows user to turn the rear sonar on or off.
Distance Allows user to set the distance sensor range to Long/Medium/Short.
Volume Allows the user to set the parking sensor volume to High/Medium/Low.
Rear Cross Traffic Alert Allows user to turn the Rear Cross Traffic Alert (RCTA) system on or off. For additional information, refer to “Rear
Cross Traffic Alert (RCTA)” in the “Starting and driving” section of this manual.
Driver Attention Alert (if so equipped) Allows user to turn the Intelligent Driver Alertness on or off. For additional information, refer to “Intelligent Driver
Alertness” in the “Starting and driving” section of this manual.
Timer Alert (if so equipped) Allows user to turn the set the timer alert.
Low Temperature Alert (if so equipped) Allows user to turn the low temperature alert on or off.
Chassis Control (if so equipped) Displays available chassis control options.
VEHICLE INFORMATION DISPLAY

1. Top tether strap anchor (P. 1-23)
2. Rear seat belts with pretensioner(s)for outboard seating (P. 1-12)
3. Roof-mounted curtain side-impact
and rollover supplemental air bag
(P. 1-46)
4. Front seat-mounted side-impact
supplemental air bag (P. 1-46)
5. Head restraints/headrests (P. 1-7)
6. Front seat belt with pretensioner(s)
and shoulder height adjuster
(P. 1-12, 1-46)
7. Side-impact pressure sensor
(driver’s side shown; passenger’s
side similar) (P. 1-46)
8. Supplemental air bags (P. 1-46)
9. Front seats (P. 1-2)
10. Occupant classification sensor
(weight sensor) (P. 1-46)
11. Rear seats (P. 1-2)
12. LATCH (Lower Anchors and Tethers
for CHildren) system (P. 1-23)
13. Rear outboard seat-mounted side
impact supplemental air bag
(P. 1-46)
Refer to the page number indicated in
parentheses for operating details.
LII2583
AIR BAGS, SEAT BELTS AND CHILD
RESTRAINTS
0-2Illustrated table of contents

1. Rear window and outside mirror(if so equipped) defroster switch
(P. 2-43)
2. Trunk lid (P. 3-25)
3. Sonar sensors (if so equipped)
(P. 5-176)
4. Rearview camera (P. 4-3)
5. Replacing bulbs (P. 8-26)
6. Fuel-filler cap (P. 3-27) Fuel recommendation (P. 10-2)
Fuel-filler door (P. 3-27)
7. Child safety rear door lock (P. 3-4)
Refer to the page number indicated in
parentheses for operating details.
LIC4027
EXTERIOR REAR
0-4Illustrated table of contents

∙ The driver and front passenger seatbelt buckles are equipped with sen-
sors that detect if the seat belts are
fastened. The NISSAN Advanced Air
Bag System monitors the severity of a
collision and seat belt usage, then in-
flates the air bags as needed. Failure
to properly wear seat belts can in-
crease the risk or severity of injury in
an accident.
∙ The front passenger seat is equipped with an occupant classification sen-
sor (weight sensor) that turns the
front passenger air bag and passen-
ger knee air bag OFF under some con-
ditions. This sensor is only used in this
seat. Failure to be properly seated and
wearing the seat belt can increase the
risk or severity of injury in an accident.
For additional information, refer to
“Front passenger air bag and status
light” in this section.
∙ Keep hands on the outside of the steering wheel. Placing them inside
the steering wheel rim could increase
the risk that they are injured when the
front air bag inflates.
ARS1133
1-48Safety—Seats, seat belts and supplemental restraint system

NISSAN Advanced Air Bag System
1. Top tether strap anchor
2.
Roof-mounted curtain side-impact and
rollover supplemental air bag inflators
3. Rear seat belts
4. Roof-mounted curtain side-impact and rollover supplemental air bag
5. Front seat-mounted side-impact supplemental air bag
6. Head restraints/headrests
7. Front seat belts
8.
Side-impact pressure sensor (driver’s side
shown; front passenger’s side similar)
9. Supplemental front-impact air bags
10. Driver and passenger supplemental knee air bags
11. Seats
12. Occupant classification sensor (weight sensor)
13.
Seat belt with pretensioner(s) (front seats
shown; rear outboard seats similar)
14. Satellite sensorsLRS3090
Safety—Seats, seat belts and supplemental restraint system1-53

15. LATCH (Lower Anchors and Tethers forCHildren) system
16. Satellite sensors
17. Rear outboard seat-mounted side- impact supplemental air bags
WARNING
To ensure proper operation of the
passenger’s NISSAN Advanced Air Bag
System, please observe the following
items.
∙ Do not allow a passenger in the rearseat to push or pull on the seatback
pocket.
∙ Do not place heavy loads heavier than 9.1 lbs. (4 kg) on the seatback, head
restraint/headrest or in the seatback
pocket.
∙ Make sure that there is nothing press- ing against the rear of the seatback,
such as a child restraint installed in
the rear seat or an object stored on
the floor.
∙ Make sure that there is no object placed under the front passenger
seat. ∙ Make sure that there is no object
placed between the seat cushion and
center console or between the seat
cushion and the door.
∙ If a forward facing child restraint is installed in the front passenger seat,
do not position the front passenger
seat so the child restraint contacts the
instrument panel. If the child restraint
does contact the instrument panel,
the system may determine the seat is
occupied and the passenger air bag
and passenger knee air bag may de-
ploy in a collision. Also the front pas-
senger air bag status light may not
illuminate. For additional information
about installing and using child re-
straints, refer to "Child restraints" in
this section.
∙ Confirm the operating condition with the front passenger air bag status
light.
∙ If you notice that the front passenger air bag status light is not operating as
described in this section, get the oc-
cupant classification system checked.
It is recommended that you visit a
NISSAN dealer for this service. ∙ Until you have confirmed with a
dealer that your passenger seat occu-
pant classification system is working
properly, position the occupants in
the rear seating positions.
∙ Do not position the front passenger seat so it contacts the rear seat. If the
front seat does contact the rear seat,
the air bag system may determine a
sensor malfunction has occurred and
the front passenger air bag status
light may illuminate and the supple-
mental air bag warning light may
flash.
This vehicle is equipped with the NISSAN
Advanced Air Bag System for the driver and
front passenger seats. This system is de-
signed to meet certification requirements
under U.S. regulations. It is also permitted in
Canada. However, all of the information,
cautions and warnings in this manual
still apply and must be followed.
The driver supplemental front-impact air
bag is located in the center of the steering
wheel. The front passenger supplemental
front-impact air bag is mounted in the
dashboard above the glove box. The front
air bags are designed to inflate in higher
severity frontal collisions, although they
1-54Safety—Seats, seat belts and supplemental restraint system

may inflate if the forces in another type of
collision are similar to those of a higher
severity frontal impact. They may not in-
flate in certain frontal collisions. Vehicle
damage (or lack of it) is not always an indi-
cation of proper front air bag system op-
eration.
The NISSAN Advanced Air Bag System
monitors information from the crash zone
sensor, the Air bag Control Unit (ACU), seat
belt buckle sensors and occupant classifi-
cation sensor (weight sensor). Inflator op-
eration is based on the severity of a colli-
sion and seat belt usage for the driver. For
the front passenger, the occupant classifi-
cation sensor is also monitored. Based on
information from the sensor, only one front
air bag may inflate in a crash, depending on
the crash severity and whether the front
occupants are belted or unbelted. Addi-
tionally, the front passenger air bag and
passenger knee air bag may be automati-
cally turned off under some conditions, de-
pending on the weight detected on the
front passenger seat and how the seat belt
is used. If the front passenger air bag and
passenger knee air bag are OFF, the front
passenger air bag status light will be illumi-
nated. For additional information, refer to
“Front passenger air bag and status light” inthis section. One front air bag inflating does
not indicate improper performance of the
system.
If you have any questions about your air
bag system, it is recommended that you
visit a NISSAN dealer to obtain information
about the system. If you are considering
modification of your vehicle due to a dis-
ability, you may also contact NISSAN. Con-
tact information is contained in the front of
this Owner’s Manual.
When a front air bag inflates, a fairly loud
noise may be heard, followed by the re-
lease of smoke. This smoke is not harmful
and does not indicate a fire. Care should be
taken to not inhale it, as it may cause irrita-
tion and choking. Those with a history of a
breathing condition should get fresh air
promptly.
Front air bags, along with the use of seat
belts, help to cushion the impact force on
the face and chest of the front occupants.
They can help save lives and reduce seri-
ous injuries. However, an inflating front air
bag may cause facial abrasions or other
injuries. Front air bags do not provide re-
straint to the lower body.
Even with NISSAN Advanced Air Bags, seat
belts should be correctly worn and the
driver and front passenger seated upright
as far as practical away from the steering
wheel or instrument panel. The front air
bags inflate quickly in order to help protect
the front occupants. Because of this, the
force of the front air bag inflating can in-
crease the risk of injury if the occupant is
too close to, or is against, the front air bag
module during inflation.
The front air bags deflate quickly af ter a
collision.
The front air bags operate only when the
ignition switch is placed in the ON posi-
tion.
Af ter placing the ignition switch in the
ON position, the supplemental air bag
warning light illuminates. The supple-
mental air bag warning light will turn off
af ter about 7 seconds if the system is
operational.
Safety—Seats, seat belts and supplemental restraint system1-55

Front passenger air bag and status light
WARNING
The front passenger air bag and pas-
senger knee air bag are designed to au-
tomatically turn OFF under some condi-
tions. Read this section carefully to
learn how it operates. Proper use of the
seat, seat belt, and child restraints is
necessary for most effective protec-
tion. Failure to follow all instructions in
this manual concerning the use of
seats, seat belts, and child restraints
can increase the risk or severity of in-
jury in an accident.Status light
The front passenger seat is equipped with
an occupant classification sensor (weight
sensor) that turns the front passenger air
bag and passenger knee air bag on or off
depending on the weight applied to the
front passenger seat. The status of the
front passenger air bag (ON or OFF) is indi-
cated by the front passenger air bag status
light
which is located on the instru-
ment panel.
Af ter the ignition switch is placed in the
"ON" position, the front passenger air bag
status light on the instrument panel illumi-
nates for about 7 seconds and then turns
off or remains illuminated depending on
the front passenger seat occupied status.
The light operates as follows:
CONDITION DESCRIPTION PASSENGER AIR BAG
STATUS LIGHT () FRONT PASSENGER AIR BAG AND PASSENGER KNEE
AIR BAG STATUS
Empty Empty front passenger seat ON (illuminated) INHIBITED
Nobody/Somebody Bag or Child or Child Restraint or Small Adult in
front passenger seat ON (illuminated)
INHIBITED
Adult Adult in the front passenger seat OFF (dark)ACTIVATED
In addition to the above, certain objects
placed on the front passenger seat may
also cause the light to operate as de-
scribed above depending on their weight. For additional information, refer to “Normal
operation” and “Troubleshooting” in this
section.
LRS3091
1-56Safety—Seats, seat belts and supplemental restraint system