belt NISSAN SENTRA 2021 Manual PDF

1. Visually inspect the belt for signs of un-usual wear, cuts, or fraying. If the belt is in
poor condition, have it replaced or ad-
justed. It is recommended that you visit a
NISSAN dealer for this service.
2. Have the belt checked regularly for condition.
REPLACING SPARK PLUGS
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect
socket can damage the spark plugs.
Iridium-tipped spark plugs
It is not necessary to replace iridium-
tipped
OAspark plugs as frequently as con-
ventional type spark plugs because they
last much longer. Follow the maintenance
log shown in the “Maintenance and sched-
ules” section of this manual. Do not service
platinum-tipped spark plugs by cleaning or
regapping.
• Always replace spark plugs with rec-
ommended or equivalent ones.
If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.
SDI1895
SPARK PLUGS
Do-it-yourself8-15

Parking brake:Check the parking brake
operation regularly. The vehicle should be
securely held on a fairly steep hill with only
the parking brake applied. If the parking
brake needs adjustment, it is recom-
mended that you visit a NISSAN dealer for
this service.
Seats: Check seat position controls such
as seat adjusters, seatback recliner, etc., to
ensure they operate smoothly and all
latches lock securely in every position.
Check that the head restraints/headrests
move up and down smoothly and the locks
(if so equipped) hold securely in all latched
positions.
Seat belts: Check that all parts of the seat
belt system (for example, buckles, anchors,
adjusters and retractors) operate properly
and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying,
wear or damage.
Steering wheel: Check for changes in the
steering system, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure all
warning lights and chimes are operating
properly.
Windshield defroster: Check that the air
comes out of the defroster outlets properly and in sufficient quantity when operating
the heater or air conditioner.
Windshield wiper and washer*:
Check
that the wipers and washer operate prop-
erly and that the wipers do not streak.
Under the hood and vehicle
The maintenance items listed here should
be checked periodically (for example, each
time you check the engine oil or refuel).
Battery*: This vehicle is equipped with a
sealed maintenance free battery. It is rec-
ommended that you visit a NISSAN dealer
for service.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of elec-
tronic accessories that consume bat-
tery power when the engine is not run-
ning (Phone chargers, GPS, DVD
players, etc.).
2. Vehicle is not driven regularly and/or
only driven short distances. In these cases, the battery may need to
be charged to maintain battery health.
Brake and clutch (if so equipped) fluid
level*:
Make sure that the brake and clutch
fluid levels are between the MIN and MAX
lines on the reservoir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Engine drive belt*: Make sure the drive belt
is not frayed, worn, cracked or oily.
Engine oil level*: Check the level af ter
parking the vehicle on a level surface with
the engine off. Wait more than 15 minutes
for the oil to drain back into the oil pan.
Exhaust system: Make sure there are no
loose supports, cracks or holes. If the
sound of the exhaust seems unusual or
there is a smell of exhaust fumes, immedi-
ately have the exhaust system inspected. It
is recommended that you visit a NISSAN
dealer for this service. For additional infor-
mation, refer to “Exhaust gas (carbon mon-
oxide)” in the “Starting and driving” section
of this manual.
9-4Maintenance and schedules

Fluid leaks:Check under the vehicle for
fuel, oil, water or other fluid leaks af ter the
vehicle has been parked for a while. Water
dripping from the air conditioner af ter use
is normal. If you should notice any leaks or if
fuel fumes are evident, check for the cause
and have it corrected immediately.
Radiator and hoses: Check the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks, defor-
mation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances from the underbody, otherwise
rust may form on the floor pan, frame, fuel
lines and exhaust system. At the end of
winter, the underbody should be thor-
oughly flushed with plain water, in those
areas where mud and dirt may have accu-
mulated. For additional information, refer
to the “Appearance and care” section of this
manual.
Windshield-washer fluid*: Check that
there is adequate fluid in the reservoir. The following descriptions are provided to
give you a better understanding of the
scheduled maintenance items that should
be regularly checked or replaced. The
maintenance schedule indicates at which
mileage/time intervals each item requires
service.
In addition to scheduled maintenance,
your vehicle requires that some items be
checked during normal day-to-day opera-
tion. For additional information, refer to
“General maintenance” in this section.
Items marked with
“*”are recommended
by NISSAN for reliable vehicle operation.
You are not required to perform mainte-
nance on these items in order to maintain
the warranties which come with your
NISSAN. Other maintenance items and in-
tervals are required.
When applicable, additional information
can be found in the “Do-it-yourself ” section
of this manual.NOTE:
NISSAN does not advocate the use of
non-OEM approved af termarket flush-
ing systems and strongly advises
against performing these services on a
NISSAN product. Many of the af termar-
ket flushing systems use non-OEM ap-
proved chemicals or solvents, the use of
which has not been validated by NISSAN.
For recommended fuel, lubricants, fluids,
grease, and refrigerant, refer to “Recom-
mended fluids/lubricants and capaci-
ties” in the “Technical and consumer in-
formation” section of this manual.
EMISSION CONTROL SYSTEM
MAINTENANCE:
Drive belt*: Check engine drive belt for
wear, fraying or cracking and for proper
tension. Replace any damaged drive belt.
Engine air filter: Replace at specified inter-
vals. When driving for prolonged periods in
dusty conditions, check/replace the filter
more frequently.
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS
Maintenance and schedules9-5

STANDARD MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = ReplaceMAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. Miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
7. 5
(12) 6 15
(24) 12 22.5
(36) 18 30
(48) 24 37.5
(60) 30 45
(72) 36 52.5
(84) 42 60
(96) 48 67.5
(108) 54 75
(120) 60 82.5
(132) 66 90
(144) 72 97.5
(156) 78 105
(168) 84 112.5
(180) 90 120
(192) 96
Air cleaner filter NOTE (1) R R R R
Brake fluid RRRR
Brake lines and cables I I I I I I I I
Brake pads and rotors III IIIII
CVT fluid NOTE (2) I I I I I I I I
Drive belts NOTE (3) I* I* I* I* I*
Engine coolant* NOTE (4)(5)
Engine oil & oil filter  R RRRRRR RRRRRRRRR
EVAP vapor lines & fuel lines I* I* I* I*
Exhaust system IIII
Front drive shaf t boots  III IIIII
Fuel filter NOTE (6)
In-cabin microfilter R R R R R R R R
Intake & exhaust valve clearance* NOTE (7)
Manual transmission gear oil NOTE (8) I I I I I I I I
NISSAN Intelligent Key® battery I R R R R
Spark plugs (Iridium/Platinum — tipped type) NOTE (9) Replace every 105,000 miles (168,000 km)
Steering gear & linkage, axle & suspension parts IIII
Tire rotation NOTE (10)
9-8Maintenance and schedules

NOTE:Maintenance items with “” should be performed more frequently according to “Maintenance under severe driving conditions”
(1) If operating mainly in dusty conditions, more frequent maintenance may be required.
(2) If using a car-top carrier or driving on rough or muddy roads, inspect CVT fluid deterioration every 60,000 miles (96,000 km), then change CVT fluid if
necessary. And if the inspection is not performed, change (not just inspect) CVT fluid every 60,000 miles (96,000 km).
(3) Af ter 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belts if found damaged.
(4) First replacement interval is 105,000 miles (168,000 km) or 84 months. Af ter first replacement, replace every 75,000 miles (120,000 km) or 60 months.
(5) Use only Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent with proper mixture ratio of 50% antifreeze and 50% demineralized or di stilled
water. Mixing any other type of coolant or the use of non-distilled water may reduce the life expectancy of the factory fill coolant.
(6) Periodic maintenance is not required.
(7) Periodic maintenance is not required. However, if valve noise increased, inspect valve clearance.
(8) If using a car-top carrier, or driving on rough or muddy roads, change (not just inspect) oil at every 20,000 miles (32,000 km) or 24 months.
(9) Replace spark plug when the plug gap exceeds 0.053 in (1.35 mm) even if within specified periodic replacement mileage.
(10) For additional information on tire rotation, refer to “General maintenance” in the section
* Maintenance items and intervals with “*” are recommended by NISSAN for reliable vehicle operation. The owner need not perform such maintenance in
order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and intervals are required.
Maintenance and schedules9-9

WARNING
• It is extremely dangerous to
ride in a cargo area inside a ve-
hicle. In a collision, people rid-
ing in these areas are more
likely to be seriously injured or
killed.
• Do not allow people to ride in
any area of your vehicle that is
not equipped with seats and
seat belts.
• Be sure everyone in your ve-
hicle is in a seat and using a
seat belt properly.
TERMS
It is important to familiarize yourself
with the following terms before
loading your vehicle: • Curb Weight (actual weight of your
vehicle) - vehicle weight including:
standard parts, fluids, emergency
tools and spare tire assembly. This
weight does not include passen-
gers and cargo.
• GVW (Gross Vehicle Weight) - curb weight plus the combined weight
of passengers and cargo.
• GVWR (Gross Vehicle Weight Rat- ing) - maximum total combined
weight of the unloaded vehicle,
passengers, luggage, hitch, trailer
tongue load and any other op-
tional equipment. This information
is located on the F.M.V.S.S./
C.M.V.S.S. certification label.
• GAWR (Gross Axle Weight Rating) - maximum weight (load) limit
specified for the front or rear axle.
This information is located on the
F.M.V.S.S./C.M.V.S.S. certification la-
bel. • GCWR (Gross Combined Weight
Rating) - The maximum total
weight rating of the vehicle, pas-
sengers, cargo, and trailer.
• Vehicle Capacity Weight, Load limit, Total load capacity - maximum to-
tal weight limit specified of the load
(passengers and cargo) for the ve-
hicle. This is the maximum com-
bined weight of occupants and
cargo that can be loaded into the
vehicle. If the vehicle is used to tow
a trailer, the trailer tongue weight
must be included as part of the
cargo load. This information is lo-
cated on the Tire and Loading In-
formation label.
• Cargo capacity - permissible weight of cargo, the subtracted
weight of occupants from the load
limit.
VEHICLE LOADING INFORMATION
Technical and consumer information10-15

This vehicle is equipped with an Event Data
Recorder (EDR). The main purpose of an
EDR is to record, in certain crash or near
crash-like situations, such as an air bag
deployment or hitting a road obstacle, data
that will assist in understanding how a ve-
hicle's systems performed. The EDR is de-
signed to record data related to vehicle dy-
namics and safety systems for a short
period of time, typically 30 seconds or less.
The EDR in this vehicle is designed to re-
cord such data as:
• How various systems in your vehicle wereoperating;
• Whether or not the driver and passenger safety belts were buckled/fastened;
• How far (if at all) the driver was depress- ing the accelerator and/or brake pedal;
and,
• How fast the vehicle was traveling.
• Sounds are not recorded.
These data can help provide a better un-
derstanding of the circumstances in which
crashes and injuries occur. NOTE: EDR data
are recorded by your vehicle only if a non-
trivial crash situation occurs; no data are
recorded by the EDR under normal driving
conditions and no personal data (e.g.
name, gender, age and crash location) are
recorded. However, other parties, such as law enforcement, could combine the EDR
data with the type of personally identif ying
data routinely acquired during a crash in-
vestigation.
To read data recorded by an EDR, special
equipment is required and access to the
vehicle or the EDR is needed. In addition to
the vehicle manufacturer and NISSAN
dealer, other parties, such as law enforce-
ment, that have the special equipment, can
read the information if they have access to
the vehicle or the EDR. EDR data will only be
accessed with the consent of the vehicle
owner or lessee or as otherwise required or
permitted by law.
Genuine NISSAN Service Manuals for this
model year and prior can be purchased. A
Genuine NISSAN Service Manual is the best
source of service and repair information for
your vehicle. This manual is the same one
used by the factory-trained technicians
working at NISSAN dealerships. Genuine
NISSAN Owner’s Manuals can also be pur-
chased.
For USA
For current pricing and availability of Genu-
ine
NISSAN Service Manuals, contact:
www.nissan-techinfo.com
For current pricing and availability of Genu-
ine NISSAN Owner's Manuals, contact:
1-800-247-5321
For Canada
To purchase a copy of a Genuine NISSAN
Service Manual or Owner’s Manual, for this
model year and prior, please visit the near-
est NISSAN dealer. For the phone number
and location of a NISSAN dealer in your
area, call the NISSAN Information Center at
1-800-387-0122 and a bilingual NISSAN rep-
resentative will assist you.
EVENT DATA RECORDERS (EDR) OWNER'S MANUAL/SERVICE
MANUAL ORDER INFORMATION
10-22Technical and consumer information

Bulb replacement...............8-26
C
C.M.V.S.S. certification label.........10-13Capacities and recommended
fuel/lubricants.................10-2Car phone or CB radio............4-67Cargo
(See vehicle loading information).....10-15Chassis control................5-119Check tire pressure..........2-30, 2-47Child restraints.......1-21,1-22,1-23,1-25LATCH (Lower Anchors and Tethers for
CHildren) System..............1-25Precautions on child
restraints............1-30, 1-36, 1-41Top tether strap anchor point
locations...................1-28Child safety rear door lock..........3-7Cleaning exterior and interior......7-2,7-5Clutch
Clutch fluid..................8-11Cold weather driving............5-125Console box................. .2-68Continuously Variable Transmission
(CVT).......................5-16Continuously Variable Transmission (CVT)
fluid......................8-10Driving with Continuously Variable
Transmission (CVT)............5-16Control panel buttons.............4-3Brightness/contrast button.......4-8
Controls
Audio controls (steering wheel).....4-63Heater and air conditioner
controls................4-33, 4-41CoolantCapacities and recommended
fuel/lubricants
...............10-2Changing engine coolant.........8-6Checking engine coolant level......8-6Engine coolant temperature gauge. . .2-6Corrosion protection..............7-8Cruise control................ .5-58Cup holders................. .2-69
D
Daytime Running Light System......2-59Defroster switch
Rear window and outside mirror defroster
switch
................... .2-55Diesel Particulate Filter (DPF)........2-51Dimensions and weights..........10-11Dimmer switch for instrument panel. . .2-60Display controls (see control panel
buttons).................... .4-3Door locks....................3-4Drive belt....................8-14Driving
Cold weather driving...........5-125Driving with Continuously Variable
Transmission (CVT)............5-16Driving with manual transmission. . .5-21
Precautions when starting and
driving.................... .5-4Driving the vehicle...............5-16
E
E-call (SOS) Button..............2-64ECO mode switch...............5-25Economy - fuel................5-111Emergency engine shutoff.......5-13,6-2Emission control information label. . . .10-13Emission control system warranty. . . .10-20Engine
Before starting the engine........5-14Capacities and recommended
fuel/lubricants...............10-2Changing engine coolant.........8-6Changing engine oil.............8-7Changing engine oil filter.........8-7Checking engine coolant level......8-6Checking engine oil level..........8-7Engine compartment check
locations.................. .8-4Engine coolant temperature gauge. . .2-6Engine cooling system...........8-5Engine oil...................8-7Engine oil and oil filter
recommendation.............10-7Engine oil pressure warning light. . . .2-10Engine oil viscosity.............10-7Engine serial number..........10-13Engine specifications...........10-9Starting the engine............5-14
11-2Index

M
MaintenanceGeneral maintenance...........9-2Inside the vehicle..............9-3Maintenance precautions.........8-2Outside the vehicle.............9-2Seat belt maintenance..........1-20Under the hood and vehicle.......9-4Maintenance log................9-11Maintenance requirements..........9-2Maintenance schedules............9-7Maintenance under severe operation
conditions....................9-10Malfunction indicator light..........2-15Manual front seat adjustment........1-3Map lights....................2-75Menu button.................. .4-6Meters and gauges..............2-4Instrument brightness control.....2-60Mirror
Automatic anti-glare inside mirror. . .3-29Outside mirror control..........3-30Outside mirrors..............3-30Rearview...................3-29Vanity mirror................3-29Mirrors......................3-29Moonroof.................2-73,7-5Moving Object Detection (MOD)......4-28
N
NISSAN Intelligent Key®..........3-2,3-7
NISSAN Intelligent Key® battery discharge
indicator.....................5-13NISSAN Vehicle Immobilizer
System................. .2-53, 5-14NissanConnect® Owner's Manual......4-2
O
Octane rating (See fuel octane rating). .10-6Oil
Capacities and recommended
fuel/lubricants
...............10-2Changing engine oil.............8-7Changing engine oil filter.........8-7Checking engine oil level..........8-7Engine oil...................8-7Engine oil and oil filter
recommendation.............10-7Engine oil viscosity.............10-7Outside mirror control............3-30Outside mirrors................3-30Overhead sunglasses holder........2-68OverheatIf your vehicle overheats.........6-11Owner's manual order form........10-22Owner's manual/service manual order
information................. .10-22
P
Parking
Parking/parking on hills.........5-112Parking brake.................5-23
Phone, Bluetooth® hands-free system. .4-67PowerPower door locks..............3-6Power outlet................2-66Powerrearwindows............2-71Power steering system.........5-113Power windows..............2-70Rear power windows...........2-71Power outlet................. .2-66Power steering................5-113Precautions
Maintenance precautions.........8-2Precautions on booster
seats...............1-30, 1-36, 1-41Precautions on child
restraints............1-30, 1-36, 1-41Precautions on seat belt usage.....1-12Precautions on supplemental restraint
system................... .1-44Precautions when starting and
driving.................... .5-4Push starting..................6-11
R
Radio
Car phone or CB radio..........4-67FM/AM radio................4-49Readiness for inspection maintenance
(I/M) test................... .10-21Rear Automatic Braking (RAB). . . .2-13, 5-74Rear Cross Traffic Alert (RCTA).......5-48Rear Door Alert.........2-31, 2-50, 2-64
Index11-5

Rear power windows.............2-71Rear seat.....................1-6Rear Sonar System (RSS)..........5-120Rear window and outside mirror defroster
switch..................... .2-55Rearview mirror................3-29RearView Monitor................4-9Recommended Fluids............10-2Recorders
Event Data................ .10-22Refrigerant recommendation.......10-8Registering a vehicle in another
country.................... .10-12Remote Engine Start..........3-20,5-15Reporting safety defects (US only). . . .10-20
S
Safety
Child safety rear door lock.........3-7Child seat belts.....1-23, 1-30, 1-36, 1-41Reporting safety defects (US only). .10-20Seat adjustment
Front manual seat adjustment......1-3Front power seat adjustment.......1-5Rear seat adjustment............1-6Seat beltChild safety..................1-21Infants and small children........1-22Injured person................1-15Larger children...............1-22Precautions on seat belt usage.....1-12Pregnant women..............1-15
Seat belt extenders............1-20Seat belt maintenance..........1-20Seat belts................1-12,7-7Shoulder belt height adjustment. . . .1-19Three-point type with retractor.....1-15Seat belt extenders..............1-20Seat belt warning light.........1-15,2-13Seatback pockets...............2-66SeatsAdjustment..................1-2Armrests....................1-7Front seats..................1-2Heated seats................2-62Manual front seat adjustment......1-3Rear seat.................. .1-6Security system (NISSAN Vehicle Immobilizer
System), engine start.........2-53, 5-14Security systems
Vehicle security system.........2-52Self-adjusting brakes.............8-18Service manual order form........10-22Servicing air conditioner...........4-44Shif t lock release...............5-19Shif tingContinuously Variable Transmission
(CVT)
.....................5-17Manual transmission...........5-22Shoulder belt height adjustment......1-19Siri® Eyes-Free................ .4-64Sonar
Rear system................5-120Spark plug replacement...........8-15Spark plugs...................8-15Specifications................ .10-9
Speedometer................. .2-4Speedometer and odometer........2-4Spotlights (See map light)..........2-75SRS warning label...............1-65Stability control................5-116Standard maintenance.........9-7,9-8Starting
Before starting the engine........5-14Jump starting.............6-9, 8-13Precautions when starting and
driving.................... .5-4Push starting................6-11Starting the engine............5-14Starting the engine..............5-14Starting the engine (models with NISSAN
Intelligent Key® system)...........5-14Steering
Power steering system.........5-113Steering wheel.................3-28Stop light....................8-26Storage.................... .2-66Storage tray..................2-67Sun visors....................3-28Sunglasses case...............2-68Sunglasses holder..............2-68Sunroof...................2-73,7-5Supplemental air bag warning labels. . .1-65Supplemental air bag warning
light................... .1-65, 2-14Supplemental front impact air bag
system..................... .1-52Supplemental restraint system
Information and warning labels.....1-65
11-6Index