stop start NISSAN SENTRA 2021 Service Manual

SYSTEM MALFUNCTION
If the I-FCW system malfunctions, it will be
turned off automatically, a chime will
sound, the AEB with Pedestrian Detection
system warning light (orange) will illumi-
nate and the warning message [Malfunc-
tion] will appear in the vehicle information
display.
Action to take
If the warning light (orange) comes on, stop
the vehicle in a safe location, turn the en-
gine off and restart the engine. If the warn-
ing light continues to illuminate, have the
I-FCW system checked. It is recommended
that you visit a NISSAN dealer for this ser-
vice.
SYSTEM MAINTENANCE
The sensorO1is located on the front of the
vehicle.
To keep the system operating properly, be
sure to observe the following:
• Always keep the sensor area of the front bumper clean.
• Do not strike or damage the areas around the sensor.
• Do not cover or attach stickers or similar objects on the front bumper near the
sensor area. This could cause failure or
malfunction. • Do not attach metallic objects near the
sensor area (brush guard, etc.). This could
cause failure or malfunction.
• Do not alter, remove or paint the front bumper. Before customizing or restoring
the front bumper, it is recommended that
you visit a NISSAN dealer.
FCC Notice
For USA
This device complies with Part 15 of the
FCC Rules. Operation is subject to the fol-
lowing two conditions:
1. This device may not cause harmful in-
terference, and
2. This device must accept any interfer-
ence received, including interference
that may cause undesired operation.
FCC Warning
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s author-
ity to operate the equipment.
5-104Starting and driving

System malfunction
If the Intelligent Driver Alertness system
malfunctions, the system warning mes-
sage will appear in the vehicle information
display and the function will be stopped
automatically.Action to take
Stop the vehicle in a safe location, place the
vehicle in P (Park) position, turn the engine
off and restart the engine. If the system
warning message continues to appear,
have the system checked. It is recom-
mended that you visit a NISSAN dealer for
this service.
LSD3802
BREAK-IN SCHEDULE
Starting and driving5-109

Follow these easy-to-use Fuel Efficient
Driving Tips to help you achieve the most
fuel economy from your vehicle.
1.Use Smooth Accelerator and Brake
Pedal Application
• Avoid rapid starts and stops
• Use smooth, gentle accelerator and brake application whenever possible
• Maintain constant speed while com- muting and coast whenever possible
2. Maintain Constant Speed
• Look ahead to try and anticipate and minimize stops
• Synchronizing your speed with traffic lights allows you to reduce your num-
ber of stops
• Maintaining a steady speed can mini- mize red light stops and improve fuel
efficiency
3. Use Air Conditioning (A/C) at Higher
Vehicle Speeds
• Below 40 mph (64 km/h), it is more efficient to open windows to cool the
vehicle due to reduced engine load
• Above 40 mph (64 km/h), it is more efficient to use A/C to cool the vehicle
due to increased aerodynamic drag • Recirculating the cool air in the cabin
when the A/C is on reduces cooling
load
4. Drive at Economical Speeds and
Distances
• Observing the speed limit and not ex- ceeding 60 mph (97 km/h) (where le-
gally allowed) can improve fuel effi-
ciency due to reduced aerodynamic
drag
• Maintaining a safe following distance behind other vehicles reduces unnec-
essary braking
• Safely monitoring traffic to anticipate changes in speed permits reduced
braking and smooth acceleration
changes
• Select a gear range suitable to road conditions
5. Use Cruise Control
• Using cruise control during highway driving helps maintain a steady speed
• Cruise control is particularly effective in providing fuel savings when driving
on flat terrains
6. Plan for the Shortest Route
• Utilize a map or navigation system to determine the best route to save time 7.
Avoid Idling
• Shutting off your engine when safe for stops exceeding 30–60 seconds saves
fuel and reduces emissions
8. Buy an Automated Pass for Toll Roads
• Automated passes permit drivers to use special lanes to maintain cruising
speed through the toll and avoid stop-
ping and starting
9. Winter Warm Up
• Limit idling time to minimize impact to fuel economy
• Vehicles typically need no more than 30 seconds of idling at start-up to ef-
fectively circulate the engine oil before
driving
• Your vehicle will reach its ideal operat- ing temperature more quickly while
driving versus idling
10. Keeping your Vehicle Cool
• Park your vehicle in a covered parking area or in the shade whenever pos-
sible
• When entering a hot vehicle, opening the windows will help to reduce the
inside temperature faster, resulting in
reduced demand on your A/C system
FUEL EFFICIENT DRIVING TIPS
5-110Starting and driving

When the vehicle is stopped on a hill, the hill
start assist system automatically keeps
the brakes applied to help prevent the ve-
hicle from rolling backward in the time it
takes the driver to release the brake pedal
and apply the accelerator.
The hill start assist system will operate au-
tomatically under the following conditions:
• The transmission is shif ted to a forwardor reverse gear.
• The vehicle is stopped completely on a hill by applying the brake. The maximum
holding time is 2 seconds. Af ter 2 sec-
onds the vehicle will begin to roll back and
the hill start assist system will stop oper-
ating completely.
The hill start assist system will not operate
when the shif t lever is placed in the N (Neu-
tral) or P (Park) position or on a flat and level
road. The RSS sounds a tone to inform the driver
of obstacles near the bumper.
When the “DISPLAY” key is on, the sonar
view will automatically appear in the
touch-screen display. An additional view of
the sonar status will appear in the vehicle
information display for reference.

WARNING
• Always make sure that the spare tire
and jacking equipment are properly
secured af ter use. Such items can be-
come dangerous projectiles in an ac-
cident or sudden stop.
• The spare tire is designed for emer-
gency use. Refer to specific instruc-
tions under the heading “Wheels and
tires” in the “Do-it-yourself ” section
of this manual. To start your engine with a booster battery,
the instructions and precautions below
must be followed.

CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface andapply the parking brake.
2. Start the engine and let it idle until it reaches operating temperature.
3. Turn off the engine. Wait more than 10
minutes for the oil to drain back into
the oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way. 5. Remove the dipstick again and check
the oil level. It should be between the H
(High) and L (Low) marksOB. This is the
normal operating oil level range. If the oil
level is below the L (Low) mark
OA,re-
move the oil filler cap and pour recom-
mended oil through the opening. Do not
overfill
OC.
6. Recheck oil level with the dipstick.
It is normal to add some oil between oil
maintenance intervals or during the
break-in period, depending on the sever-
ity of operating conditions.
CAUTION
• Oil level should be checked regularly.
Operating the engine with an insuffi-
cient amount of oil can damage the
engine, and such damage is not cov-
ered by warranty.
• It is normal to add some oil between
oil maintenance intervals or during
the break-in period, depending on
the severity of operating conditions.
Make sure to follow the engine oil changing
intervals in the maintenance booklet. Op-
erating under the following conditions may
require more frequent oil change:
• repeated short distance driving
• driving in dusty conditions
• stop and go commuting.
CHANGING ENGINE OIL AND OIL
FILTER
For additional information on engine oil
and oil filter change, refer to the instruc-
tions outlined in this section.
LDI3487LDI0371
ENGINE OIL
Do-it-yourself8-7

The viscous paper type filter element (if so
equipped) should not be cleaned and re-
used. The dry paper type filter element (if so
equipped) may be cleaned an reused. Re-
place it according to the maintenance log
shown in the “Maintenance and schedules”
section of this manual.
To remove the air cleaner filter:
1. Unlatch the retaining clips
OA.
2. Pull up at points
OBand remove.
3. Pull up and remove air cleaner housing. 4. Remove the air cleaner filter. Wipe the
inside of the air cleaner filter housing
and the cover with a damp cloth, then
replace air cleaner filter.
NOTE:
Af ter installing a new air cleaner, make
sure the air cleaner cover is seated in the
housing and latch the clips.
WARNING
• Operating the engine with the air
cleaner removed can cause you or
others to be burned. The air cleaner
not only cleans the air, it stops the
flame if the engine backfires. If it isn't
there, and the engine backfires, you
could be burned. Do not drive with
the air cleaner removed, and be care-
ful when working on the engine with
the air cleaner removed.
• Never pour fuel into the throttle body
or attempt to start the engine with
the air cleaner removed. Doing so
could result in serious injury.
IN-CABIN MICROFILTER
The in-cabin microfilter restricts the entry
of airborne dust and pollen particles and
reduces some objectionable outside
odors. The filter is located behind the glove
box. For additional information, refer to the
“Maintenance and schedules” section of
this manual for change intervals.
If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.
LDI3498
AIR CLEANER

Manual Transmission (if so
equipped)
• Always tow with the manual transmis-sion in N (Neutral).
• Af ter towing 500 miles (805 km), start and idle the engine with the transmission in N
(Neutral) for two minutes. Failure to idle
the engine af ter every 500 miles (805 km)
of towing may cause damage to internal
transmission parts.
Continuously Variable
Transmission (if so equipped)
To tow a vehicle equipped with a continu-
ously variable transmission, an appropriate
vehicle dolly MUSTbe placed under the
towed vehicle's drive wheels. Alwaysfollow
the dolly manufacturer's recommenda-
tions when using their product. DOT (Department of Transportation) Qual-
ity Grades: All passenger car tires must
conform to federal safety requirements in
addition to these grades.
Quality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature
A
Treadwear
The treadwear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
and one-half (1 1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variations in driving habits,
service practices and differences in road
characteristics and climate.
Traction AA, A, B and C
The traction grades, from highest to low-
est, are AA, A, B, and C. Those grades repre-
sent the tire's ability to stop on wet pave-ment as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction perfor-
mance.

Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders)
...................3-16Inside automatic anti-glare mirror. . . .3-29Instrument brightness control.......2-60Instrument panel.............0-6, 2-2Instrument panel dimmer switch.....2-60Intelligent Around View Monitor......4-16Intelligent Cruise Control (ICC).......5-59Intelligent Driver Alertness (I-DA).....5-105Intelligent Forward Collision Warning
(I-FCW)......................5-92Intelligent Key system
Key operating range............3-9Key operation................3-10Mechanical key................3-3Remote keyless entry operation. . . .3-14Troubleshooting guide.......3-18,3-19Warning signals...........3-18,3-19Intelligent Trace Control (I-TC).......5-119Interior light...............2-74,2-75Interior trunk lid release...........3-24iPod® Player................. .4-57ISOFIX child restraints.............1-25
J
Jump starting...............6-9, 8-13
K
Key.........................3-2Key fob battery replacement........8-22
Keyless entry
With Intelligent Key system
(See Intelligent Key system)
.......3-14KeysNISSAN Intelligent Key®........3-2,3-7NISSAN Vehicle Immobilizer System
keys..................... .3-4
L
Labels
Air conditioner specification label. . .10-14C.M.V.S.S. certification label.......10-13Emission control information label. .10-13Engine serial number..........10-13F.M.V.S.S. certification label........10-13Tire and Loading Information label. .10-14Vehicle identification number (VIN). .10-12Vehicle identification number (VIN)
plate.................... .10-12Warning labels (for SRS)..........1-65Lane Departure Warning (LDW).......5-29LATCH (Lower Anchors and Tethers for
CHildren) System...............1-25Launch bar menu...............4-8License plate
Installing the license plate........10-14LightAir bag warning light........1-65, 2-14Brake light (See stop light)........8-26Bulb check/instrument panel......2-9Bulb replacement.............8-26Charge warning light...........2-10
Exterior and Interior lights........8-26Fog light switch...............2-61Fog lights..................8-25Headlight and turn signal switch. . . .2-55Headlight control switch.........2-55Headlights..................8-24Interior light..............2-74,2-75Light bulbs.................8-24Low tire pressure warning light.....2-11Low windshield-washer fluid warning
light................. .2-30, 2-47Spotlights (See map light)........2-75Trunk light..................2-76Warning/indicator lights and audible
reminders..................3-16Lights......................8-24Map lights..................2-75Lock
Child safety rear door lock.........3-7Door locks................. .3-4Fuel-filler door lock opener lever. . . .3-25Glove box lock...............2-67Power door locks..............3-6Trunk lid lock opener lever........3-24Loose fuel cap warning........2-29,2-47Low fuel warning light.........2-29,2-46Low tire pressure warning light.......2-11Low windshield-washer fluid warning
light................... .2-30, 2-47Luggage (See vehicle loading
information)..................10-15
11-4Index

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