2022 NISSAN SENTRA service

If a child restraint must be used in the front
seat, the front passenger air bag status
light may or may not be illuminated, de-
pending on the size of the child and the
type of child restraint being used. If the air
bag status light is not illuminated (indicat-
ing that the front passenger air bag and
passenger knee 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 still not illuminated,
reposition the occupant or child restraint in
arearseat.
If the front passenger air bag status light
will not illuminate even though you believe
that the child restraint, the seat belts and
the occupant are properly positioned, it is
recommended that you take your vehicle
to a NISSAN dealer. A NISSAN dealer can
check system status by using a special
tool. However, until you have confirmed
with a dealer that your air bag is working
properly, reposition the occupant or child
restraint in a rear seat.
The NISSAN Advanced Air Bag System and
front passenger air bag status light will
take a few seconds to register a change inthe front passenger seat status. This is nor-
mal system operation and does not indi-
cate a malfunction.
If a malfunction occurs in the front passen-
ger air bag system, the supplemental air
bag warning light
, located in the me-
ter and gauges area of the instrument
panel, will be illuminated (blinking or
steadily lit). Have the system checked. It is
recommended that you visit a NISSAN
dealer for this service.
Normal operation
In order for the occupant classification
sensor system to classif y the front passen-
ger based on weight, please follow the pre-
cautions and steps outlined below:
Precautions
• Make sure that there are no objects weighing over 9.1 lbs. (4 kg) hanging on
the seat or placed in the seatback pocket.
• Make sure that a child restraint or other object is not pressing against the rear of
the seatback.
• Make sure that a rear passenger is not pushing or pulling on the back of the front
passenger seat. • Make sure that the front passenger seat
or seatback is not forced back against an
object on the seat or floor behind it.
• Make sure that there is no object placed under the front passenger seat.
Steps
1. Adjust the seat as outlined in the “Seats” section of this manual. Sit upright, lean-
ing against the seatback, and centered
on the seat cushion with your feet com-
fortably extended to the floor.
2. Make sure there are no objects on your lap.
3. Fasten the seat belt as outlined in the “Seat belts” section of this manual. Front
passenger seat belt buckle status is
monitored by the occupant classifica-
tion system, and is used as an input to
determine occupancy status. So, it is
highly recommended that the front pas-
senger fasten their seat belt.
4. Remain in this position for 30 seconds allowing the system to classif y the front
passenger before the vehicle is put into
motion.
5. Ensure proper classification by checking the front passenger air bag status light.
Safety-Seats, seat belts and supplemental restraint system1-57

NOTE:
This vehicle’s occupant classification
sensor system generally keeps the clas-
sification locked during driving, so it is
important that you confirm that the
front passenger is properly classified
prior to driving. However, the occupant
classification sensor may recalculate the
weight of the occupant under some con-
ditions (both while driving and when
stopped), so front passenger seat occu-
pants should continue to remain seated
as outlined above.
Troubleshooting
If you think the front passenger air bag
status light is incorrect:
1. If the light is ON with an adult occupyingthe front passenger seat:
• Occupant is a small adult — the air bag light is functioning as intended. The front
passenger air bag and passenger knee
air bag are suppressed. However, if the occupant is not a small
adult, then this may be due to the following
conditions that may be interfering with the
weight sensors:
• Occupant is not sitting upright, leaning
against the seatback, and centered on
the seat cushion with his/her feet com-
fortably extended to the floor.
• A child restraint or other object pressing against the rear of the seatback.
• A rear passenger pushing or pulling on the back of the front passenger seat.
• Forcing the front seat or seatback against an object on the seat or floor be-
hind it.
• 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.
If the vehicle is moving, please come to a
stop when it is safe to do so. Check and
correct any of the above conditions. Re-
start the vehicle and wait 1 minute.
NOTE:
A system check will be performed during
which the front passenger air bag status
light will remain lit for about 7 seconds
initially.
If the light is still ON af ter this, the person
should be advised not to ride in the front
passenger seat and the vehicle should be
checked as soon as possible. It is recom-
mended that you visit a NISSAN dealer for
this service.
2. If the light is OFF with a small adult, child or child restraint occupying the front
passenger seat.
This may be due to the following condi-
tions that may be interfering with the
weight sensors:
• Small adult or child is not sitting upright, leaning against the seatback, and cen-
tered on the seat cushion with his/her
feet comfortably extended to the floor.
• The child restraint is not properly in- stalled, as outlined in the “Child restraints”
section of this manual.
• An object weighing over 9.1 lbs. (4 kg) hanging on the seat or placed in the seat-
back pocket.
1-58Safety-Seats, seat belts and supplemental restraint system

• A child restraint or other object pressingagainst the rear of the seatback.
• A rear passenger pushing or pulling on the back of the front passenger seat.
• Forcing the front seat or seatback against an object on the seat or floor be-
hind it.
• An object placed under the front passen- ger seat.
• An object placed between the seat cush- ion and center console.
If the vehicle is moving, please come to a
stop when it is safe to do so. Check and
correct any of the above conditions. Re-
start the vehicle and wait 1 minute.
NOTE:
A system check will be performed during
which the front passenger air bag status
light will remain lit for about 7 seconds
initially.
If the light is still OFF af ter this, the small
adult, child or child restraint should be re-
positioned in the rear seat and the vehicle
should be checked as soon as possible. It is
recommended that you visit a NISSAN
dealer for this service. 3. If the light is OFF with no front passenger
and no objects on the front passenger
seat, the vehicle should be checked. It is
recommended that you visit a NISSAN
dealer as soon as possible.
Other supplemental front-impact air
bag precautions
WARNING
• Do not place any objects on the
steering wheel pad or on the instru-
ment panel. Also, do not place any
objects between any occupant and
the steering wheel or instrument
panel. Such objects may become
dangerous projectiles and cause in-
jury if the front air bags inflate.
• Immediately af ter inflation, several
front air bag system components will
be hot. Do not touch them; you may
severely burn yourself.
• No unauthorized changes should be
made to any components or wiring
of the supplemental air bag system.
This is to prevent accidental inflation
of the supplemental air bag or dam-
age to the supplemental air bag
system. •
Do not make unauthorized changes
to your vehicle's electrical system,
suspension system or front end
structure. This could affect proper
operation of the front air bag system.
• Tampering with the front air bag sys-
tem may result in serious personal
injury. Tampering includes changes
to the steering wheel and the instru-
ment panel assembly by placing ma-
terial over the steering wheel pad
and above the instrument panel or
by installing additional trim material
around the air bag system.
• Removing or modif ying the front
passenger seat may affect the func-
tion of the air bag system and result
in serious personal injury.
Safety-Seats, seat belts and supplemental restraint system1-59

If any of the following conditions occur, the
front air bag, side air bag, curtain air bag
and pretensioner systems need servicing:
• The supplemental air bag warning lightremains on af ter approximately 7 sec-
onds.
• The supplemental air bag warning light flashes intermittently.
• The supplemental air bag warning light does not come on at all.
Under these conditions, the front air bag,
side air bag, curtain air bag or pretensioner
systems may not operate properly. They
must be checked and repaired. It is recom-
mended that you visit a NISSAN dealer for
this service.

•If there is an impact to your vehicle
from any direction, your Occupant
Classification Sensor (OCS) should be
checked to verif y it is still functioning
correctly. It is recommended that you
visit a NISSAN dealer for this service.
The OCS should be checked even if no
air bags deploy as a result of the im-
pact. Failure to verif y proper OCS
function may result in an improper
air bag deployment resulting in in-
jury or death.
Safety-Seats, seat belts and supplemental restraint system1-67

FUEL GAUGE
NOTE:
The ignition switch must be placed in the
ON position for the gauge to give a
reading.
The gauge indicates theapproximatefuel
level in the tank.
The gauge may move slightly during brak-
ing, turning, acceleration, or going up or
down hills.
The low fuel warning light comes on when
the amount of fuel in the tank is getting low. Refill the fuel tank before the gauge reg-
isters 0 (Empty).
Malfunction Indicator Light (MIL)
may come on. Refuel as soon as pos-
sible. Af ter a few driving trips. the
light should turn off. If the light
remains on af ter a few driving trips,
have the vehicle inspected. It is rec-
ommended that you visit a NISSAN
dealer for this service.
• For additional information, refer to
“Malfunction Indicator Light (MIL)” in
this section.
DISTANCE TO EMPTY (DTE)
Displays the estimated distance the ve-
hicle can be driven before refueling. The
value is calculated based on recent fuel
economy, the amount of fuel remaining in
the fuel tank, and the actual fuel consump-
tion. Changes in driving patterns or conditions
can cause the DTE value to vary. As a result,
the value displayed may differ from the ac-
tual distance that can be driven.
DTE display will change to “---” when the
fuel level in the tank is getting low, prior to
the fuel gauge reaching 0 (Empty).
NOTE:
• The DTE value af ter refill is estimated
based on recent fuel economy and
amount of fuel added.
• If a small amount of fuel is added, or the ignition is on during refueling, the
display may not be updated.
• Conditions that affect the fuel economy will also affect the estimated
DTE value (city/highway driving, idle
time, remote start time, terrain, sea-
sonal weather, added vehicle weight,
added deflectors, roof racks, etc.).

CHECKING LIGHTS
With all doors closed, apply the parking
brake, fasten the seat belts and place the
ignition switch in the ON position without
starting the engine. The following lights (if
so equipped) will come on:
,,,,,or
The following lights (if so equipped) will
come on briefly and then go off:
,or,,,,
If any light does not come on or operate in
a way other than described, it may indicate
a burned-out bulb and/or a system mal-
function. Have the system checked. It is
recommended that you visit a NISSAN
dealer for this service.
Some indicators and warnings are also dis-
played on the vehicle information display
between the speedometer and tachom-
eter. For additional information, refer to “Ve-
hicle information display” in this section.
WARNING LIGHTS
For additional information on warnings
and indicators, refer to “Vehicle information
display” in this section.
orAnti-lock Braking
System (ABS)
warning light
When the ignition switch is placed in the ON
position, the ABS warning light illuminates
and then turns off. This indicates the ABS is
operational.
If the ABS warning light illuminates while
the engine is running or while driving, it
may indicate the ABS is not functioning
properly. Have the system checked. It is
recommended that you visit a NISSAN
dealer for this service.
If an ABS malfunction occurs, the anti-lock
function is turned off. The brake system
then operates normally but without anti-
lock assistance. For additional information,
refer to “Brake system” in the “Starting and
driving” section of this manual.
Automatic Emergency
Braking (AEB) with
Pedestrian Detection
system warning light
This light comes on when the ignition
switch is placed in the ON position. It turns
off af ter the engine is started.This light illuminates when the AEB with
Pedestrian Detection system is set to OFF
in the vehicle information display.
If the light illuminates when the AEB with
Pedestrian Detection system is on, it may
indicate that the system is unavailable. For
additional information, refer to “Automatic
Emergency Braking (AEB) with Pedestrian
Detection” and “Intelligent Forward Colli-
sion Warning (I-FCW)” in the “Starting and
driving” section of this manual.
orBrake warning
light
This light functions for both the parking
brake and the foot brake systems.
Parking brake indicator
When the ignition switch is placed in the ON
position, the light comes on when the park-
ing brake is applied.
Instruments and controls2-9

Low brake fluid warning light
When the ignition switch is placed in the ON
position, the light warns of a low brake fluid
level. If the light comes on while the engine
is running with the parking brake not ap-
plied, stop the vehicle and perform the fol-
lowing:
1. Check the brake fluid level. Add brakefluid as necessary. For additional infor-
mation, refer to “Brake fluid” in the “Do-it-
yourself ” section of this manual.
2. If the brake fluid level is correct, have the warning system checked. It is recom-
mended that you visit a NISSAN dealer
for this service.