belt NISSAN SENTRA 2021 Repair Manual

Power steering warning
light
Rear Automatic Braking
(RAB) OFF 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 RAB system
is turned off in the vehicle information dis-
play.
If the light illuminates when the RAB sys-
tem is on, it may indicate that the system is
unavailable. For additional information, re-
fer to “Rear Automatic Braking (RAB)” in the
“Starting and driving” section of this
manual.
Seat belt warning light and
chime
The light and chime remind you to fasten
your seat belts. The light illuminates when-
ever the ignition switch is placed in the ON
position and remains illuminated until the
driver's seat belt is fastened. At the same
time, the chime sounds for about 6 sec-
onds unless the driver's seat belt is se-
curely fastened.
The seat belt warning light may also illumi-
nate if the front passenger's seat belt is not
fastened when the front passenger's seat
is occupied. For 7 seconds af ter the ignition
switch is placed in the ON position, the sys-
tem does not activate the warning light for
the front passenger.
The rear seats are also equipped with a
seat belt warning light.
For additional information, refer to “Seat
belts” in the “Safety—Seats, seat belts and
supplemental restraint system” section of
this manual.
Instruments and controls2-13

Supplemental air bag
warning light
When the ignition switch is placed in the ON
position, the supplemental air bag warning
light illuminates for about 7 seconds and
then turns off. This means the system is
operational.
If any of the following conditions occur, the
front air bag, side air bag, curtain air bag,
and pretensioner seat belt 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.
It is recommended that you visit a NISSAN
dealer for these services. Unless checked
and repaired, the supplemental restraint
system (air bag system) and/or the preten-
sioners may not function properly. For ad-
ditional information, refer to “Supplemental
restraint system (SRS)” in the “Safety—
Seats, seat belts and supplemental re-
straint system” section of this manual.
Continuously Variable
Transmission (CVT)
position indicator light
(CVT models) (if so
equipped)
When the ignition switch is placed in the ON
position, this indicator light shows the shif t
lever position. For additional information,
refer to “Driving the vehicle” in the “Starting
and driving” section of this manual.
ECO mode indicator light (if
so equipped)
This light comes on when the ECO mode
has been selected. For additional informa-
tion, refer to “ECO mode switch” in the
“Starting and driving” section of this
manual.
Front fog light indicator
light (if so equipped)
The front fog light indicator light illumi-
nates when the front fog lights are on. For
additional information, refer to “Fog light
switch” in this section.
Front passenger air bag
status light
The front passenger air bag status light will
be lit and the passenger front air bag will be
off depending on how the front passenger
seat is being used.
For additional information, refer to “Front
passenger air bag and status light” in the
“Safety — Seats, seat belts and supplemen-
tal restraint system” section of this manual.
2-14Instruments and controls

8. Engine start operation for Intelligent Keysystem (if I-Key battery level is low)
9. Release Parking Brake
10. Low Fuel
11. Loose Fuel Cap
12. Low Oil Pressure: See Owner’s Manual
13. Low Washer Fluid
14. Tire Pressure Low — Add Air
15. TPMS Error: See Owner’s Manual
16. Door/Trunk Open
17. Power will turn off to save the battery
18. Power turned off to save the battery
19. Reminder: Turn OFF Headlights
20. Headlight System Error: See Owner’s Manual (if so equipped)
21. Engine Oil Service due in---km
22. BSW/RCTA System Malfunction: See Owner’s Manual
23. Side Radar Obstruction
24. Check Rear Seat for All Articles
25. Rear Door Alert is activated
26. Shipping Mode On Push Storage Fuse 27. Not Available Poor Road Conditions (if
so equipped)
28. CVT Malfunction Service now
29. Illumination indicator
30. Outside Temperature Display
31. Low Outside Temperature (if so equipped)
32. Unavailable: Front Radar Obstruction
33. ECO mode indicator
34. Parking Sensor Error-See Owner’s Manual
35. Not Available System Malfunction (if so equipped)
36. Unavailable High Cabin Temperature
37. Currently not available (if so equipped)
38. Rear seat belt reminder
39. Rotate Steering Wheel and Push Start Switch
40. No Key Press and hold to Stop Engine
41. Speed Limit Sign (if so equipped)
42. Driver Attention Alert —Take a Break?
43. Driver Attention Alert MalfunctionNo Key Detected
This warning appears when the Intelligent
Key is lef t outside the vehicle with the igni-
tion switch in the ON position. Make sure
the Intelligent Key is inside the vehicle.
For additional information, refer to “NISSAN
Intelligent Key®” in the “Pre-driving checks
and adjustments” section of this manual.
Key ID Incorrect
This warning appears when the ignition
switch is placed from the OFF position and
the Intelligent Key is not recognized by the
system. You cannot start the engine with
an unregistered key.
For additional information, refer to “NISSAN
Intelligent Key®” in the “Pre-driving checks
and adjustments” section of this manual.
Key Battery Low
This indicator illuminates when the Intelli-
gent Key battery is running out of power.
If this indicator illuminates, replace the bat-
tery with a new one. For additional infor-
mation, refer to “Battery replacement” in
the “Do-it-yourself ” section of this manual.
2-28Instruments and controls

Currently not available (if so
equipped)
This message may appear when the Intel-
ligent Cruise Control (ICC) system is en-
gaged.
Under the following conditions, the ICC sys-
tem is automatically canceled:
• When the VDC operates
• When a wheel slips
• When the VDC system is turned off
The above system cannot be used in some
situations (VDC operates, wheel slip and
VDC system is off.)
Rear seat belt reminder
This warning appears for 35 seconds af ter
the ignition is placed in the ON position and
the engine is started.
This warning message shows the status of
the three rear seat belts. When one of the
rear seat belts are buckled, the corre-
sponding rear seat belt indicator will ap-
pear grey. When one of the rear seat belts
are unbuckled, the corresponding rear seat
belt indicator will appear red.
Af ter a change in buckle status, a chime will
sound and the warning will appear for an-
other 35 seconds.
Rotate Steering Wheel and Push Start
Switch
This indicator appears when the steering
lock cannot be released.
If this indicator appears, push the ignition
switch while lightly turning the steering
wheel right and lef t.
No Key Press and hold to Stop Engine
This message appears when the Intelligent
key is not detected and the engine should
be turned off.
Speed Limit Sign indicator (if so
equipped)
This message may appear when the Traffic
Sign Recognition system is engaged.
For additional information, refer to “Traffic
Sign Recognition (TSR)” in the “Starting and
driving” section of this manual.
Driver Attention Alert— Take a Break?
This alert appears when the system has
detected that the driver may be displaying
fatigue or a lack of attention.
Driver Attention Alert Malfunction
This warning appears when the Intelligent
Driver Alertness system is not functioning
properly. For additional information, refer to
“Intelligent Driver Alertness (I-DA)” in the
“Starting and driving” section of this
manual.
Instruments and controls2-33

10. Release Parking Brake
11. Low Fuel
12. Loose Fuel Cap
13. Engine Oil Service due in–––km
14. Low Washer Fluid (if so equipped)
15. Tire Pressure Low - Add Air
16. Door/ Trunk Open
17. Timer Alert —Time for a break?
18. Low outside temperature indicator
19. Power will turn off to save the battery
20. Power turned off to save the battery
21. Reminder: Turn OFF Headlights
22. Headlight System Error See Owner’sManual (if so equipped)
23. Parking Sensor Error: See Owner’s Manual
24. Driver Attention Alert— Take a Break?
25. Driver Attention Alert Malfunction
26. Malfunction: See Owner’s Manual
27. Unavailable: Side Radar Obstruction
28. Malfunction (if so equipped) 29. Shipping Mode On Push Storage Fuse
30. Intelligent Cruise Control (ICC) indica-
tors (if so equipped)
31. CVT (AT) Malfunction Service now (if so equipped)
32. CVT (AT) hot Power reduced (if so equipped)
33. Chassis Control System Error: See Owner’s Manual (if so equipped)
34. Not Available System Malfunction
35. Not Available Front Radar Blocked
36. Currently not available (if so equipped)
37. Not Available Poor Road Conditions (if so equipped)
38. Unavailable: High Cabin Temperature
39. Rear Door Alert is activated
40. Check Rear Seat For All Articles
41. Rear seat belt reminder
42. Rotate Steering Wheel and Push Start Switch
43. No Key Press and hold to Stop Engine
44. Speed Limit Sign (if so equipped)
45. Brightness indicator 46. Engine Stalled Stop safely
47. Engine Malfunction Power reduced Ser-
vice now
48. Engine Malfunction Service now
49. Engine hot Power reduced
No Key Detected
This warning appears when the Intelligent
Key is lef t outside the vehicle with the igni-
tion switch in the ON position. Make sure
the Intelligent Key is inside the vehicle.
For additional information, refer to “NISSAN
Intelligent Key®” in the “Pre-driving checks
and adjustments” section of this manual.
Key ID Incorrect
This warning appears when the ignition
switch is placed from the OFF position and
the Intelligent Key is not recognized by the
system. You cannot start the engine with
an unregistered key.
For additional information, refer to “NISSAN
Intelligent Key®” in the “Pre-driving checks
and adjustments” section of this manual.
Instruments and controls2-45

NISSAN VEHICLE IMMOBILIZER
SYSTEM
The NISSAN Vehicle Immobilizer System
will not allow the engine to start without
the use of the registered key.
If the engine fails to start using a registered
key (for example, when interference is
caused by another registered key, an auto-
mated toll road device or automatic pay-
ment device on the key ring), restart the
engine using the following procedure:
1. Leave the ignition switch in the ON posi-tion for approximately 5 seconds.
2. Place the ignition switch in the OFF or LOCK position, and wait approximately
10 seconds.
3. Repeat steps 1 and 2.
4. Restart the engine while holding the de- vice (which may have caused the inter-
ference) separate from the registered
key.
If the no start condition re-occurs, NISSAN
recommends placing the registered key on
a separate key ring to avoid interference
from other devices. • Make sure the area around the vehicle is
clear.
• Check fluid levels such as engine oil, cool- ant, brake and clutch fluid (if so equipped),
and windshield-washer fluid as fre-
quently as possible, or at least whenever
you refuel.
• Check that all windows and lights are clean.
• Visually inspect tires for their appearance and condition. Also check tires for proper
inflation.
• Lock all doors.
• Position seat and adjust head restraints/ headrests.
• Adjust inside and outside mirrors.
• Fasten seat belts and ask all passengers to do likewise.
• Check the operation of warning lights when the ignition switch is placed in the
ON position. For additional information,
refer to “Warning lights, indicator lights
and audible reminders” in the “Instru-
ments and controls” section of this
manual. 1. Apply the parking brake.
2.
Continuously Variable Transmission
model:
Move the shif t lever to P (Park) or N (Neu-
tral). P (Park) is recommended.
The starter is designed not to operate
if the shif t lever is in any of the driving
positions.
Manual Transmission (M/T) model:
Move the shif t lever to N (Neutral). De-
press the clutch pedal to the floor.
The starter is designed not to operate
unless the clutch pedal is fully de-
pressed.
3. Push the ignition switch to the ON posi- tion. Depress the brake pedal and the
clutch pedal (if so equipped) and push
the ignition switch to start the engine.
To start the engine immediately, push
and release the ignition switch while de-
pressing the brake pedal with the igni-
tion switch in any position.
• If the engine is very hard to start in extremely cold weather or when re-
starting, depress the accelerator
pedal a little (approximately 1/3 to the
BEFORE STARTING THE ENGINE STARTING THE ENGINE
5-14Starting and driving

When installing Genuine NISSAN floor mats,
follow the installation instructions provided
with the mat and the following:
1. With the ignition in the OFF position, theshif t lever in P (Park) position (Continu-
ously Variable Transmission models) or
the shif t lever in the N (Neutral) position
(manual transmission models) and with
the parking break fully applied, position
the floor mat in the floorwell so that the
floor mat grommet holes are aligned
with the hook(s).
2. Secure the grommet holes into the hook(s) and ensure that the floor mat is
properly positioned.
3. Make sure the floor mat does not inter- fere with pedal operation. With the igni-
tion still in the OFF position, the shif t le-
ver in the P (Park) position (Continuously
Variable Transmission models) or the
shif t lever in the N (Neutral) position
(manual transmission models) and with
the parking break applied, fully apply
and release all pedals. The floor mat
must not interfere with pedal operation
or prevent the pedal from returning to
its normal position. It is recommended that you visit a NISSAN
dealer for details about installing the floor
mats in your vehicle.
The illustration shows the location of the
floor mat positioning hooks.
SEAT BELTS
The seat belts can be cleaned by wiping
them with a sponge dampened in a mild
soap solution. Allow the belts to dry com-
pletely in the shade before using them. For
additional information, refer to “Seat belt
maintenance” in the “Safety—Seats, seat
belts and supplemental restraint system”
section of this manual.
LPD2495
Positioning hooks
Appearance and care7-7

WARNING
Do not allow wet seat belts to roll up in
the retractor. NEVER use bleach, dye or
chemical solvents to clean the seat
belts, since these materials may se-
verely weaken the seat belt webbing.MOST COMMON FACTORS
CONTRIBUTING TO VEHICLE
CORROSION
Most vehicle corrosion is caused by:
• The accumulation of moisture-retaining dirt and debris in body panel sections,
cavities, and other areas.
• Damage to paint and other protective coatings caused by gravel and stone
chips or minor traffic collisions.
ENVIRONMENTAL FACTORS
INFLUENCE THE RATE OF
CORROSION
Moisture
Accumulation of sand, dirt and water on
the vehicle body underside can accelerate
corrosion. Wet floor coverings will not dry
completely inside the vehicle and should
be removed for drying to avoid floor panel
corrosion.
Relative humidity
Corrosion will be accelerated in areas of
high relative humidity, especially those ar-
eas where the temperatures stay above
freezing and where atmospheric pollution
exists and road salt is used.
Temperature
High temperatures accelerate the rate of
corrosion to those parts which are not well
ventilated.
Air pollution
Industrial pollution, the presence of salt in
the air in coastal areas, or heavy road salt
use accelerates the corrosion process.
Road salt also accelerates the disintegra-
tion of paint surfaces.
PROTECT YOUR VEHICLE FROM
CORROSION
• Wash and wax your vehicle of ten to keepthe vehicle clean.
• Always check for minor damage to the paint and repair it as soon as possible.
• Keep drain holes at the bottom of the doors open to avoid water accumulation.
• Check the underbody for accumulation of sand, dirt or salt. If present, wash with
water as soon as possible.
CORROSION PROTECTION
7-8Appearance and care

MR20DD
1. Engine oil filler
2. Brake and clutch (if so equipped) fluidreservoir
3. Air cleaner
4. Battery
5. Fuse and relay box
6. Engine coolant reservoir
7. Engine oil dipstick
8. Drive belt location
9. Windshield-washer fluid reservoir
LDI3477
ENGINE COMPARTMENT CHECK
LOCATIONS

CAUTION
• Do not ground accessories directly to
the battery terminal. Doing so will
bypass the variable voltage control
system and the vehicle battery may
not charge completely.
• Use electrical accessories with the
engine running to avoid discharging
the vehicle battery. Your vehicle is equipped with a variable
voltage control system. This system mea-
sures the amount of electrical discharge
from the battery and controls voltage gen-
erated by the generator.
The current sensor
OAis located near the
battery along the negative battery cable. If
you add electrical accessories to your ve-
hicle, be sure to ground them to a suitable
body ground such as the frame or engine
block area.
1. Automatic tensioner pulley
2. Generator pulley
3. Water pump pulley
4. Air conditioner compressor pulley (if so
equipped/Idler pulley (if so equipped)
5. Crankshaf t pulley
WDI0638
VARIABLE VOLTAGE CONTROL
SYSTEM DRIVE BELT