2023 NISSAN FRONTIER service

NOTE:
Do not try to open the top of the battery.
This battery is not equipped with remov-
able vent caps.
JUMP STARTING
If jump starting is necessary, see “Jump
starting” (P. 6-11). If the engine does not start
by jump starting, the battery may have to
be replaced. It is recommended that you
visit a NISSAN dealer for this service.
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.
NOTE:
If the battery is completely drained the
transmission will not manually shif t to
other positions.
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.
LDI3691
Type B (if so equipped)
LDI3525
VARIABLE VOLTAGE CONTROL
SYSTEM
8-18Do-it-yourself

1. Power steering fluid pump pulley
2. Automatic belt tensioner pulley
3. Air conditioner compressor pulley
4. Crankshaf t pulley
5. Generator pulley
WARNING
Be sure the ignition switch is in the
OFF or LOCK position before servicing
drive belt. The engine could rotate
unexpectedly. 1. Visually inspect the belt for signs of un-
usual wear, cuts, fraying or looseness. If
the belt is in poor condition or is loose,
have it replaced or adjusted. It is recom-
mended that you visit a NISSAN dealer
for this service.
2. Have the belt checked regularly for con- dition and tension in accordance with
the maintenance schedule found in the
"Maintenance and schedules" section of
this manual.
REPLACING 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
iridium-tipped spark plugs by cleaning or
regapping.
• Always replace spark plugs with rec-
ommended or equivalent ones.
LDI3616SDI1895
DRIVE BELT SPARK PLUGS
Do-it-yourself8-19

If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.The dry paper type filter element may be
cleaned and reused. Replace 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 clips
OAand move the air
cleaner cover upward.
2. Remove the air cleaner filter.
3. Wipe the inside of the air cleaner filter housing and the cover with a damp
cloth.
NOTE:
Af ter installing a new air cleaner filter,
make sure the air cleaner cover is seated
in the housing and latch the clips
OA.
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, see "Main-
tenance and schedules" section of this
manual for change intervals.
LDI3630
AIR CLEANER
8-20Do-it-yourself

If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.CLEANING
If your windshield is not clear af ter using
the windshield-washer or if a wiper blade
chatters when running, wax or other mate-
rial may be on the blade or windshield.
Clean the outside of the windshield with a
washer solution or a mild detergent. Your
windshield is clean if beads do not form
when rinsing with clear water.
Clean each blade by wiping it with a cloth
soaked in a washer solution or a mild de-
tergent. Then rinse the blades with clear
water. If your windshield is still not clear
af ter cleaning the blades and using the
wiper, replace the blades.
CAUTION
Worn windshield wiper blades can
damage the windshield and impair
driver vision.
REPLACING
Replace the wiper blades if they are worn.
1. Lif t the wiper arm away from the windshield.
2. Push and hold the release tab
OA, and
then move the wiper blade down
OBthe
wiper arm to remove.
3. Remove the wiper blade.
4. Insert the new wiper blade onto the wiper arm until it clicks into place.
LDI2725
WINDSHIELD WIPER BLADES
Do-it-yourself8-21

CAUTION
• Af ter wiper blade replacement, re-
turn the wiper arm to its original po-
sition; otherwise it may be damaged
when the hood is opened.
• Make sure the wiper blades contact
the glass; otherwise the arms may be
damaged from wind pressure.
Be careful not to let anything get into the
washer nozzle
OD. This may cause clogging
or improper windshield–washer operation.
If something gets into the nozzle, remove it
with a needle or small pin
OC. If the brakes do not operate properly, have
the brakes checked. It is recommended
that you visit a NISSAN dealer for this
service.
Self-adjusting brakes
Your vehicle is equipped with self-adjusting
brakes.
The front and rear disc-type brakes self-
adjust every time the brake pedal is
applied.
WARNING
Have your brake system checked if the
brake pedal height does not return to
normal. It is recommended that you
visit a NISSAN dealer for this service.
Brake pad wear indicators
The disc brake pads on your vehicle have
audible wear indicators. When a brake pad
requires replacement, a high pitched
scraping or screeching sound will be heard
when the vehicle is in motion. The noise will
be heard whether or not the brake pedal is
depressed. Have the brakes checked as
soon as possible if the wear indicator
sound is heard.LDI2710
BRAKES
8-22Do-it-yourself

5. If the fuse is openOA, replace it with a
new fuse
OB.
6. If a new fuse also opens, have the elec- trical system checked and repaired. It is
recommended that you visit a NISSAN
dealer for this service.
Fusible links
If the electrical equipment does not oper-
ate and fuses are in good condition, check
the fusible links. If any of these fusible links
are melted, replace with only Genuine
NISSAN parts.
PASSENGER COMPARTMENT
WARNING
Never use a fuse of a higher or lower
amperage rating than that specified on
the fuse box cover. This could damage
the electrical system or electronic con-
trol units or cause a fire. If any electrical equipment does not oper-
ate, check for an open fuse.
1. Be sure the ignition switch and the head-
light switch are OFF.
2. Open glove box and pull the fuse box covertoremove.
3. Remove the fuse with the fuse puller.
LDI0456LDI3640
Do-it-yourself8-25

4. If the fuse is openOA, replace it with an
equivalent good fuse
OB.
5. Reverse step 2 to reinstall fuse box cover.
6. If a new fuse also opens, have the elec- trical system checked and repaired. It is
recommended that you visit a NISSAN
dealer for this service.
NOTE:
Your vehicle may not be equipped with
all fuses listed on the fuse label.
CAUTION
Be careful not to allow children to swal-
low the battery or removed parts.
NISSAN INTELLIGENT KEY®
LDI0456
LDI2001
BATTERY REPLACEMENT
8-26Do-it-yourself

Replace the battery in the Intelligent Key as
follows:
1. Remove the mechanical key from theIntelligent Key.
2. Insert a small flathead screwdriver
OA
into the slitOBof the corner and twist it
to separate the upper part from the
lower part. Place a cloth over the screw-
driver to protect the casing. 3. Replace the battery with a new one.
Recommended battery: CR2032 or
equivalent.• Do not touch the internal circuit and electric terminals as doing so could
cause a malfunction.
• Hold the battery by the edges. Holding the battery across the contact points
will seriously deplete the storage
capacity.
• Make sure that the + side faces the bottom of the lower part.
4. Close the lid securely as illustrated with
OCandOD.
5. Operate the buttons to check the operation.
If you need assistance with replacement, it
is recommended that you visit a NISSAN
dealer for this service.
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.
LDI2637
Do-it-yourself8-27