Page 457 of 636
1. Remove the vent caps with a screwdriver asshown. Use a cloth to protect the battery
case.
2. Check the fluid level in each cell. If it isnecessary to add fluid, add only distilled
water to bring the level up to the bottom of
the filler opening. Do not overfill.Reinstall
the vent caps. Vehicles operated in high temperatures or under
severe conditions require frequent checks of the
battery fluid level.
JUMP STARTING
If jump starting is necessary, refer to “Jump start-
ing” in the “In case of emergency” section of this
manual. 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.
WDI0224
WDI0529
8-14Do-it-yourself
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CAUTION
●Do not ground accessories directly to
the battery terminal. Doing so will by-
pass the variable voltage control sys-
tem and the vehicle battery may not
charge completely.
● Use electrical accessories with the en-
gine running to avoid discharging the
vehicle battery. Your vehicle is equipped with a variable voltage
control system. This system measures the
amount of electrical discharge from the battery
and controls voltage generated by the generator.
The current sensor
Ais located near the battery
along the negative battery cable. If you add elec-
trical accessories to your vehicle, be sure to
ground them to a suitable body ground such as
the frame or engine block area.
1. Power steering fluid pump pulley
2. Automatic belt tensioner pulley
3. Water pump pulley
4. Cooling fan pulley
5. Air conditioner compressor pulley
6. Crankshaft pulley
7. Generator pulley
WARNING
Be sure the ignition switch is in the OFF or
LOCK position before servicing drive belt.
The engine could rotate unexpectedly.
LDI2959
VK56VD engine
WDI0661
VARIABLE VOLTAGE CONTROL
SYSTEM (if so equipped) DRIVE BELT
Do-it-yourself8-15
Page 459 of 636

1. Visually inspect the belt for signs of unusualwear, cuts, fraying or looseness. If the belt is
in poor condition or is loose, have it replaced
or adjusted. It is recommended that you visit
a NISSAN dealer for this service.
2. Have the belt checked regularly for condi- tion and tension in accordance with the
maintenance schedule. For additional infor-
mation, refer to the “Maintenance” section of
this manual.
For additional information on the Cummins 5.0L
engine drive belt, refer to the “Titan Diesel Own-
er’s Manual”.
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-tipped spark
plugs as frequently as conventional type spark
plugs because they last much longer. Follow the
maintenance log shown in the “Maintenance”
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.
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, it is recommended that
you visit a NISSAN dealer for this service.
LDI2972
SPARK PLUGS (gasoline engine only)
8-16Do-it-yourself
Page 460 of 636

WARNING
●Operating the engine with the air
cleaner removed can cause you or oth-
ers 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 careful 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.
To remove the filter from the air cleaner, push the
tabs and pull the cover upward.
The viscous paper type filter element should not
be cleaned and reused. Replace the air filter
according to the maintenance log shown in the
“Maintenance” section of this manual.
When replacing the air filter, wipe the inside of
the air cleaner housing and the cover with a damp
cloth.
NOTE:
After installing a new air cleaner, make
sure the air cleaner cover is seated in the
housing and latch the tabs.
For additional information on the Cummins 5.0L
engine air cleaner, refer to the “Titan Diesel Own-
er’s Manual”.
IN-CABIN MICROFILTER
The in-cabin microfilter restricts the entry of air-
borne dust and pollen particles and reduces
some objectionable outside odors. The filter is
located behind the glove box. For additional in-
formation on change intervals, refer to “Standard
maintenance” in the “Maintenance” section of this
manual.
If replacement is required, it is recommended that
you visit a NISSAN dealer for this service.
VK56VD engine
LDI2960
AIR CLEANER
Do-it-yourself8-17
Page 461 of 636

CLEANING
If your windshield is not clear after using the
windshield-washer or if a wiper blade chatters
when running, wax or other material 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 detergent. Then
rinse the blades with clear water. If your wind-
shield is still not clear after cleaning the blades
and using the wiper, replace the blades.
CAUTION
Worn windshield wiper blades can dam-
age the windshield and impair driver
vision.
REPLACING
Replace the wiper blades if they are worn.1. Lift the wiper arm away from the windshield.
2. Push and hold the release tab
A, and then
move the wiper blade down
Bthe wiper
arm to remove.
3. Remove the wiper blade.
4. Insert the new wiper blade onto the wiper arm until it clicks into place.
CAUTION
●After wiper blade replacement, return
the wiper arm to its original position;
otherwise it may be damaged when the
hood is opened.
● Make sure the wiper blades contact the
glass; otherwise the arms may be dam-
aged from wind pressure.
LDI2725
WINDSHIELD WIPER BLADES
8-18Do-it-yourself
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Be careful not to let anything get into the washer
nozzle
D. This may cause clogging or improper
windshield–washer operation. If something gets
into the nozzle, remove it with a needle or small
pin
C. If the brakes do not operate properly, it is recom-
mended that you have the brakes checked by a
NISSAN dealer.
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 nor-
mal. 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 re-
placement, a high pitched scraping or screech-
ing 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.
Under some driving or climate conditions, occa-
sional brake squeak, squeal or other noise may
be heard. Occasional brake noise during light to
moderate stops is normal and does not affect the
function or performance of the brake system.
Proper brake inspection intervals should
be followed.
For additional information on the
appropriate maintenance schedule regarding
brake inspections, refer to “Standard mainte-
nance” and “Maintenance under severe operat-
ing conditions” in the “Maintenance” section of
this manual.
LDI2710
BRAKES
Do-it-yourself8-19
Page 463 of 636

Two types of fuses are used. TypeAandBare
used in the fuse boxes in the engine compart-
ment. Type
Bis used in the passenger compart-
ment fuse box.
Type
Bfuses are provided as spare fuses. They
are stored in the passenger compartment fuse
box.
Type
Afuses can be installed in the engine
compartment and passenger compartment fuse
boxes. If a type
Afuse is used to replace a typeBfuse,
the type
Afuse will not be level with the fuse
pocket as shown in the illustration. This will not
affect the performance of the fuse. Make sure the
fuse is installed in the fuse box securely.
Type
Bfuses cannot be used to replace typeA
fuses.
ENGINE COMPARTMENT
WARNING
Never use a fuse of higher or lower amper-
age rating than that specified on the fuse
box cover. This could damage the electri-
cal system or electronic control units or
cause a fire.
If any electrical equipment does not come on,
check for an open fuse. 1. Be sure the ignition switch and the headlight switch are OFF.
LDI0455LDI0457
VK56VD engine
LDI2962
FUSES
8-20Do-it-yourself
Page 464 of 636
2. Open the engine hood.
3. Remove the fuse box cover by pushing thetab and lifting the cover up.
4. Remove the fuse with the fuse puller. The fuse puller is located in the center of the fuse
block in the passenger compartment. 5. If the fuse is openA, replace it with a new
fuse
B.
6. If a new fuse also opens, have the electrical system checked and repaired. It is recom-
mended that you visit a NISSAN dealer for
this service.
Fusible links
If the electrical equipment does not operate and
fuses are in good condition, check the fusible
links. If any of these fusible links are melted,
replace with only Genuine NISSAN parts.
VK56VD engine
LDI2974
Cummins 5.0L engine
LDI2882
LDI2826
Do-it-yourself8-21