spark plugs replace NISSAN ALTIMA 2015 L33 / 5.G Owners Manual

8 Maintenance and do-it-yourself
Maintenance requirements..........................8-2
General maintenance ..............................8-2
Explanation of general maintenance items .........8-2
Maintenance precautions ...........................8-5
Engine compartment check locations ................8-7
Engine cooling system .............................8-9
Checking engine coolant level ..................8-10
Changing engine coolant .......................8-10
Engine oil ........................................ 8-11
Checking engine oil level .......................8-11
Changing engine oil ........................... 8-12
Changing engine oil filter .......................8-13
Continuously Variable Transmission (CVT) fluid ......8-14
Power steering fluid ............................... 8-15
Brake fluid ....................................... 8-15
Brake fluid .................................... 8-16
Windshield-washer fluid ........................... 8-16
Windshield-washer fluid reservoir ...............8-16
Battery .......................................... 8-17
Jump starting ................................. 8-19
Variable voltage control system .....................8-19
Drive belt ........................................ 8-20
Spark plugs ...................................... 8-21Replacing spark plugs
......................... 8-21
Air cleaner ....................................... 8-21
In-cabin microfilter (if so equipped) ..............8-22
Windshield wiper blades .......................... 8-22
Cleaning ..................................... 8-22
Replacing .................................... 8-23
Brakes .......................................... 8-24
Fuses ........................................... 8-24
Engine compartment ........................... 8-25
Passenger compartment .......................8-26
Battery replacement .............................. 8-28
NISSAN Intelligent Key® .......................8-29
Lights ........................................... 8-30
Headlights .................................... 8-30
Fog lights (if

so equipped) ...................... 8-30
Park/turn signal lights .......................... 8-31
Exterior and interior lights .......................8-33
Wheels and tires ................................. 8-36
Tire pressure .................................. 8-36
Tire labeling ................................... 8-40
Types of tires .................................. 8-43
Tire chains .................................... 8-44
Changing wheels and tires .....................8-45

REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-tippedA
spark plugs as frequently as conventional type
spark plugs because they last much longer. Fol-
low the maintenance log shown in the “NISSAN
Service and Maintenance Guide”. Do not service
iridium-tipped spark plugs by cleaning or regap-
ping.● QR25DE: Always replace spark plugs
with recommended ones.
● VQ35DE: Always replace spark plugs
with recommended or equivalent ones.
WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect socket
can damage the spark plugs.
If replacement is required, see your NISSAN
dealer for assistance.
NOTE:
The air cleaner filter should not be cleaned
and reused.
Replace the air cleaner filter according to the
maintenance log shown in the “Warranty Informa-
tion and Maintenance Booklet.”
SDI1895
QR25DE
LDI2117
SPARK PLUGS AIR CLEANER
Maintenance and do-it-yourself8-21

SeatsAdjustment ...................1-2
Armrests....................1-7
Frontseats...................1-2
Heatedseats.................2-37
Manual front seat adjustment .........1-2
Rear seat ....................1-5
Security indicator light ..............2-16
Security system (NISSAN vehicle immobilizer
system) , engine start ........2-28,3-4,5-11
Security systems Vehicle security system ...........2-27
Self-adjusting brakes ..............8-24
Service manual order form ...........9-21
Servicing air conditioner .............4-35
Setting button ...................4-7
Shifting Continuously Variable Transmission
(CVT) .....................5-14
Shift lever lock release..............5-17
Shoulder belt height adjustment ........1-17
Smartphone connectivity ............4-83
Sonar Rear system .................5-36
Spark plug replacement .............8-21
Spark plugs ...................8-21
Specifications ...................9-8
Speedometer ...................2-4
Spotlights(Seemaplight) ...........2-50
SRS warning label ................1-59
Stability control .................5-34
Starting Before starting the engine ..........5-11
Jump starting ..............6-8,8-19
Precautions when starting and driving ....5-2
Push starting .................6-10 Starting the engine
.............5-12
Starting the engine ...............5-12
Steering Heated steering wheel ...........2-38
Power steering fluid .............8-15
Power steering system ...........5-31
Stoplight.....................8-33
Storage......................2-41
Sunglassescase.................2-41
Sunglassesholder................2-41
Sunroof......................2-47
Sunroof(seeMoonroof).............2-47
Sun visors ....................3-35
Supplemental air bag warning light . . .1-59, 2-14
Supplemental front impact air bag system . . .1-48
Supplemental restraint system Information and warning labels .......1-59
Precautions on supplemental restraint
system ....................1-41
Supplemental restraint system
(Supplemental air bag system) .........1-41
Switch Autolightswitch...............2-33
Automatic power window switch ......2-46
Foglightswitch ...............2-36
Hazard warning flasher switch ........6-2
Headlight and turn signal switch ......2-31
Headlight control switch ..........2-33
Instrument brightness control ........2-35
Power door lock switch .........3-5,3-6
Rear window and outside mirror defroster
switch.....................2-31
Turn signal switch ..............2-35
Vehicle dynamic control (VDC) off switch. .2-39
Windshield wiper and washer switch . . .2-29 T
Tachometer ....................2-5
Temperature gauge Engine coolant temperature gauge .....2-5
Theft (NISSAN vehicle immobilizer system) ,
engine start .............2-28,3-4,5-11
Three-way catalyst ................5-2
Tilt Telescopic steering .............3-35
Tire Flat tire .....................6-3
Spare tire ................6-5,8-48
Tire and Loading Information label .....9-12
Tire chains ..................8-44
Tire placard ..................9-12
Tire pressure .................8-36
Tire rotation..................8-45
Types of tires .................8-43
Uniform tire quality grading .........9-17
Wheels and tires ...............8-36
Wheel/tire size .................9-9
Tire pressure Low tire pressure warning light .......2-12
Tire Pressure Monitoring System (TPMS) ....5-3
Towing Flattowing..................9-17
Towtrucktowing...............6-11
Trailer towing .................9-17
Towing a trailer ..................9-17
Transceiver HomeLink® Universal
Transceiver .......2-51,2-53,2-53,2-54
10-6