2018 NISSAN SENTRA Replace Key FOB Battery

8 Do-it-yourself
Maintenance precautions.......................8-2
Engine compartment check locations ...........8-3
Engine cooling system ..........................8-5
Checking engine coolant level ................8-6
Changing engine coolant .....................8-6
Engine oil ........................................8-7
Checking engine oil level .....................8-7
Changing engine oil ..........................8-8
Changing engine oil filter ....................8-10
Continuously Variable Transmission (CVT)
fluid (if so equipped) ............................. 8-11
Brake and clutch (if so equipped) fluid ..........8-12
Brake fluid ................................... 8-12
Clutch (if so equipped) fluid ..................8-12
Windshield-washer fluid ........................8-13
Windshield-washer fluid reservoir ............8-13
Battery......................................... 8-14
Jump starting ............................... 8-15
Variable voltage control system ................8-16
Drive belt ....................................... 8-16
Spark plugs .................................... 8-17
Replacing spark plugs ....................... 8-17
Air cleaner ...................................... 8-18In-cabin microfilter
.......................... 8-19
Windshield wiper blades ........................8-19
Cleaning .................................... 8-19
Replacing ................................... 8-19
Brakes.......................................... 8-21
Fuses ........................................... 8-22
Engine compartment .......................8-22
Passenger compartment ....................8-24
Battery replacement ........................... 8-25
Key fob (if so equipped) ......................8-26
NISSAN Intelligent Key® (if so equipped) ......8-27
Lights .......................................... 8-29
Headlights ................................... 8-29
Turn signal bulb ............................. 8-31
Fog lights (if so equipped) ...................8-31
Ex

terior and interior lights ...................8-33
Wheels and tires ................................ 8-35
Tire pressure ................................ 8-35
Tire labeling ................................. 8-39
Types of tires ................................ 8-41
Tire chains .................................. 8-42
Changing wheels and tires ..................8-43

KEY FOB (if so equipped)
Replace the battery in the key fob as fol-
lows:1. Remove the screw
A. 2. Insert a small screwdriver into the slit of
the corner
Band twist it to separate
the upper part from the lower part. Use
a cloth to protect the casing.
3. Replace the battery with a new one. ∙ Do not touch the internal circuit andelectric terminals as doing so could
cause a malfunction.
∙ Make sure that the + side faces the bottom of the case
C.
Recommended battery: CR1620 or equiva-
lent. 4. Close the lid and install the screw se- curely.
5. Operate the buttons to check its op- eration.
If you need assistance with replacement, it
is recommended that you visit a NISSAN
dealer for this service. If the battery is removed for any reason
other than replacement, perform step 5.
∙ An improperly disposed battery can
hurt the environment. Always con-
firm local regulations for battery dis-
posal.
∙ The key fob is water-resistant; how-
ever, if it does get wet, immediately
wipe completely dry.
∙ The operational range of the key fob
extends to approximately 33 f t (10 m)
from the vehicle. This range may vary
with conditions.
Operation is subject to the following two
conditions: (1) This device may not cause
harmful interference, and (2) this device
must accept any interference received,
including interference that may cause
undesired operation of the device.
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 interference, and
(2) this device must accept any interfer-
ence received, including interference
that may cause undesired operation.
LDI2219
8-26Do-it-yourself

11 Index
A
Air bag (See supplemental restraint
system) .................... .1-44
Air bag system Front (See supplemental front impact air
bagsystem)................1-51
Side and curtain (See supplemental side
air bag and curtain side-impact
airbagsystem)..............1-59
Air bag warning labels ............1-62
Airbagwarninglight..........1-63, 2-19
Air bag warning light,
supplemental ..............1-63, 2-19
Air cleaner ...................8-18
Air cleaner housing filter ..........8-18
Air conditioner Air conditioner operation ....4-26,4-32
Air conditioner service ..........4-34
Air conditioner specification label . .10-13
Air conditioner system refrigerant and oil
recommendations ............10-8
Air conditioner system refrigerant
recommendations ............10-8
Heater and air conditioner (automatic)
(if so equipped) ..............4-31
Heater and air conditioner
controls...............4-24,4-32
Heater and air conditioner
(manual) ..................4-23
Servicing air conditioner ........4-34
Air flow charts .............4-20,4-27 Alarm system
(See vehicle security system)
.......2-36
Anchor point locations ...........1-28
Antenna ....................4-73
Antifreeze ...................5-77
Anti-lock brake warning light ........2-14
Anti-lock Braking System (ABS) ......5-73
Apps .......................4-74
APPS button ...................4-7
Armrests.................... .1-7
Audible reminders ..............2-22
Audiosystem.................4-34 AMradioreception............4-35
Bluetooth® audio .........4-69,4-70
Bluetooth® streaming audio ......4-70
Compact disc (CD)
player.............4-46,4-51,4-58
FM/AM radio with compact disc (CD)
player....................4-43
FM/AM/SAT radio with compact disc (CD)
player ................4-48,4-53
FMradioreception............4-35
iPod®Player.............4-63,4-66
iPod® player operation ......4-63,4-66
Radio ....................4-34
Steering wheel audio control
switch....................4-72
USBinterface............4-59,4-61
USB (Universal Serial Bus) Connection
Port..................4-59,4-61
Autolightswitch ...............2-42
Automatic Automatic power window switch . . .2-58 Automatic anti-glare inside mirror
....3-32
Automatic door locks .............3-7
Automatic Emergency Braking
(AEB) ...................2-14,5-62
AUXjack....................4-59
B
Back button ...................4-7
Battery..................5-77,8-14 Charge warning light ...........2-15
Battery replacement ............8-25
Keyfob................8-25,8-26
NISSAN Intelligent Key® .........8-27
Before starting the engine .........5-14
Belt(Seedrivebelt)..............8-16
Blind Spot Warning (BSW) ..........5-27
Bluetooth® audio ...........4-69,4-70
Bluetooth® hands-free phone
system .....................4-79
Bluetooth® Hands-Free Phone System with
N
avigationSystem..............4-91
Bluetooth® streaming audio with
NavigationSystem..............4-70
Bluetooth® streaming audio without
Navigation System (if so equipped) . . .4-69
Booster seats .................1-41
Brake Anti-lock Braking System (ABS) ....5-73
Brakefluid.................8-12
Brakelight(Seestoplight).......8-33
Brakesystem...............5-72

Heated seat switches.............2-47
Heater Heater and air conditioner (automatic)
(if so equipped) ...............4-31
Heater and air conditioner
controls................4-24,4-32
Heater and air conditioner
(manual) ...................4-23
Heater operation ....4-17,4-19,4-25,4-33
Heater and air conditioner (automatic) . .4-31
HomeLink® Universal
Transceiver . .2-63, 2-64, 2-65, 2-66, 2-66, 2-67
Hood .......................3-25
Horn.......................2-47
I
Ignition switch ..................5-9
Push-button ignition switch .......5-11
Immobilizer system ........2-38,5-11, 5-14
Important vehicle information label . . .10-12
In-cabinmicrofilter ..............8-19
Increasing fuel economy ...........5-70
Indicator NISSAN Intelligent Key® battery discharge
indicator...................5-13
Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders) .................2-19,3-21
Inside automatic anti-glare mirror .....3-32
Instrument brightness control .......2-45
Instrument panel .............0-6,2-2
Instrument panel dimmer switch .....2-45Intelligent cruise control (ICC) system
Brake assist .................5-47
Intelligent Key system Key operating range ............3-13
Key operation ................3-14
Mechanical key ...............3-4
Remote keyless entry operation . .3-9, 3-18
Troubleshooting guide .......3-23,3-24
Warning signals ...........3-23,3-24
Interiorlight...............2-60,2-62
Interiortrunklidrelease...........3-26
iPod®Player...............4-63,4-66
ISOFIX child restraints .............1-26
J
Jumpstarting...............6-9,8-15
K
Key.........................3-2
Key fob battery replacement .....8-25,8-26
Keyless entry With Intelligent Key system
(See Intelligent Key system) .....3-9,3-18
Without Intelligent Key system
(See remote keyless entry system) . . .3-8
Keys NISSAN Intelligent Key® ........3-2,3-11
NISSAN Vehicle Immobilizer System
keys......................3-4 L
Labels Air conditioner specification label . . .10-13
C.M.V.S.S. certification label .......10-12
Emission control information label . .10-12
Engine serial number ..........10-12
F.M.V.S.S. certification label .......10-12
Tire and Loading Information label . .10-13
Vehicle identification number (VIN) . .10-11
Vehicle identification number (VIN)
plate.....................10-11
Warning labels (for SRS) ..........1-62
LATCH (Lower Anchors and Tethers for
CHildren)System................1-26
License plate Installing the license plate .......10-13
Light Airbagwarninglight........1-63, 2-19
Brakelight(Seestoplight)........8-33
Bulb check/instrument panel ......2-14
Bulb replacement .............8-33
Charge warning light ...........2-15
Console light ................2-61
ExteriorandInteriorlights........8-33
Foglights..................8-31
Foglightswitch..............2-46
Headlight and turn signal switch ....2-41
Headlightcontrolswitch.........2-41
Headlights .................8-29
Interiorlight.............2-60,2-62
Lightbulbs.................8-29
Low tire pressure warning light .....2-16
Low windshield-washer fluid warning
light ..................2-18,2-34
11-4