2003 NISSAN FRONTIER transmission oil

orAnti-lock brake warning lightLow tire pressure warning light (if so equipped)4-wheel drive indicator light (if so equipped)
Automatic transmission oil temperature warn-
ing light (model)Low washer fluid warning light (if so equipped)High beam indicator light (Blue)
Automatic transmission park warning light
(model)Passenger supplemental air bag OFF indicator
light (except Crew Cab models)Malfunction indicator lamp (MIL)
orBrake warning lightSeat belt warning light and chimeOverdrive off indicator light (automatic trans-
mission only)
Charge warning lightSupplemental air bag warning lightSlip indicator light (if so equipped)
Door open warning lightCRUISE main switch indicator light (if so
equipped)Turn signal/hazard indicator lights
Engine oil pressure warning lightCruise SET switch indicator light (if so
equipped)Vehicle dynamic control off indicator light (if so
equipped)
Low fuel warning light
CHECKING BULBS
With all doors closed, apply the parking brake
and turn the ignition key to the ON position
without starting the engine. The following lights
will come on:
,or,,,
If the driver’s seat belt is fastened before the
ignition key is turned to the ON position,
the
light will not come on.
If equipped, the following lights come on briefly
and then go off:
or,,,,,,
If any light fails to come on, it may indicate
a burned-out bulb or an open circuit in the
electrical system. Have the system repaired
promptly.
WARNING/INDICATOR LIGHTS AND
AUDIBLE REMINDERS
Instruments and controls2-9
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WARNING LIGHTS
orAnti-lock brake
warning light
If the light comes on while the engine is running,
it may indicate the anti-lock brake system is not
functioning properly. Have the system checked
by a NISSAN dealer.
If an abnormality occurs in the system, the anti-
lock function ceases, but the regular braking
system continues to operate.
If the light comes on while you are driving,
contact a NISSAN dealer for repair.
Automatic transmission oil
temperature warning light
(
model)
This light comes on when the automatic transmis-
sion oil temperature is too high. If the light comes
on while driving, reduce the vehicle speed as
soon as safely possible until the light turns off.
CAUTION
Continued vehicle operation when the A/T
oil temperature warning light is on may
damage the automatic transmission.
Automatic transmission park
warning light (
model)
This light indicates that the automatic transmis-
sion parking function is not engaged. If the trans-
fer control shift lever is not secured in any drive
position while the automatic transmission selec-
tor lever is in the P (Park) position, the vehicle
may move unexpectedly.
Shift the transfer control shift lever into the 2H,
4H, or 4L position when the warning light comes
on.
cWhen parking, always make sure that the
transfer control shift lever is in 2H, 4H, or 4L
and the parking brake is set.
cIf the ATP light is ON, this indicates that the
automatic transmission P (Park) position will
not function and the transfer control shift lever
is in the N (Neutral) position.
cFailure to engage the transfer shift control
lever in 2H, 4H or 4L could result in the vehicle
moving unexpectedly, resulting in serious per-
sonal injury or property damage.
CAUTION
If the ATP light is ON, this indicates that
the automatic transmission P (Park) posi-
tion will not function and the transfer con-
trol shift lever is in the N (Neutral)
position.
orBrake warning light
This light functions for both the parking brake and
the foot brake systems.
When the ignition key is in the ON position, the
light comes on when the parking brake is applied,
and also warns of a low brake fluid level. If the
light comes on while the engine is running with
the parking brake not applied, stop the vehicle
and perform the following:
1. Check the brake fluid level. Add brake fluid
as necessary. See “Brake and clutch fluid” in
the “Maintenance and do-it-yourself” sec-
tion of this manual.
2-10Instruments and controls
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cMake sure the area around the vehicle is clear.
cCheck fluid levels such as engine oil, coolant,
brake and clutch fluid, and window washer
fluid as frequently as possible, or at least
whenever you refuel.
cCheck that all windows and lights are clean.
cVisually inspect tires for their appearance and
condition. Also check tires for proper inflation.
cLock all doors.
cPosition seat and adjust head restraints.
cAdjust inside and outside mirrors.
cFasten seat belts and ask all passengers to do
likewise.
cCheck the operation of warning lights when
the key is turned to the ON (3) position. See
“Warning/indicator lights and audible remind-
ers” in the “Instruments and controls” section
of this manual.1. Apply the parking brake.
2.Automatic transmission:
Move the shift selector lever to P (Park) or N
(Neutral) . P (Park) is recommended.
The shift selector lever cannot be
moved out of P (Park) and into any of
the other gear positions if the ignition
key is turned to the OFF position or if
the key is removed from the ignition
switch.
The starter is designed not to operate if
the shift selector lever is in any of the
driving positions.
Manual transmission:
Move the shift lever to N (Neutral) . Depress
the clutch pedal to the floor while cranking
the engine.
The starter is designed not to operate
unless the clutch pedal is fully de-
pressed.
3. Crank the enginewith your foot off the
accelerator pedalby turning the ignition
key to START. Release the key when the
engine starts. If the engine starts, but fails to
run, repeat the above procedure.cWhen the engine is very hard to start in
extremely cold weather or when restart-
ing, depress the accelerator pedal a little
(approximately 1/5 to the floor) and hold it
and then crank the engine. Release the
key and the accelerator pedal when the
engine starts.
cWhen the engine is very hard to start
because it is flooded, depress the accel-
erator pedal all the way to the floor and
hold it. Crank the engine for 5-6 seconds.
After cranking the engine, release the ac-
celerator pedal. Crank the enginewith
your foot off the accelerator pedalby
turning the ignition key to START. Release
the key when the engine starts. If the
engine starts, but fails to run, repeat the
above procedure.
CAUTION
Do not operate the starter for more than
15 seconds at a time. If the engine does
not start, turn the key off and wait 10
seconds before cranking again, otherwise
the starter could be damaged.
4. Allow the engine to idle for at least 30 sec-
onds after starting. Drive at moderate speed
for a short distance first, especially in cold
weather.
BEFORE STARTING THE ENGINE STARTING THE ENGINE
Starting and driving5-9
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cDo not leave the transfer control lever in
the N (Neutral) position. Otherwise, the
vehicle could roll unexpectedly even if
the manual transmission is in any gear
or the automatic transmission is in the
P (Park) position. This could result in
serious personal injury or property
damage.
cFailure to engage the transfer control
lever in 2H, 4H or 4L could result in the
vehicle moving unexpectedly, which
could cause serious personal injury or
property damage.
CAUTION
Do not drive on dry hard surface roads in
four-wheel drive. Driving on dry hard sur-
faces in 4H or 4L may cause unnecessary
noise, tire wear, and increased fuel con-
sumption. NISSAN recommends driving in
the 2H position under these conditions.
2H— (2WD, high range) Only the rear wheels
are driven. Use for driving under the same condi-
tions as standard 2WD vehicles or state dyna-
mometer I/M testing.
4H— (4WD, high range) Four wheels are driven.
Use when driving on roads where it is difficult todrive in the 2H position (for example, driving at
normal speeds on snow covered, icy, wet, muddy
or sandy roads) .
The 4H position provides greater power and
traction. Avoid excessive speed as it will cause
increased fuel consumption, higher oil tempera-
ture and could damage drivetrain components.
Speed over 50 MPH (80 km/h) in 4H are not
recommended.
4L— (4WD, low range) Four wheels are driven.
Use when climbing or descending steep hills, or
during hard driving in sand, mud or deep snow.
The 4L position provides maximum power and
traction. Avoid raising vehicle speed excessively,
as the maximum speed is approximately 30 MPH
(48 km/h) .
N— No wheels are driven. Always keep the
transfer lever out of the N (Neutral) position. Shift
the lever quickly and smoothly when moving
across the N (Neutral) position with the vehicle
stopped.AUTO-LOCK FREE-
RUNNING HUBS
The auto-lock free-running hub is designed to
allow for automatic four-wheel drive engagement
when the shift lever is moved to the 4H or 4L
position. Follow these operational cautions:
CAUTION
cThe auto-locking hubs will make a
clicking noise when engaging and dis-
engaging. This is normal.
SD0021
5-22Starting and driving
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cAccelerating quickly from a stop after
shifting from two-wheel drive to four-
wheel drive may not allow engagement
of the auto-locking free-running hubs
and may cause a clattering noise. If this
occurs, release the accelerator pedal to
reduce the engine speed or stop the
vehicle. Continued use of the vehicle
with this noise may damage the hub
lock.
cIf the auto-locking hubs make a clatter-
ing noise after shifting from four-wheel
drive to two-wheel drive, stop and move
the vehicle in reverse gear, in a straight
line, about 7 to 10 feet (2 to 3 m) .
cUnder extremely cold conditions [below
5°F (-15°C)], the front axle shafts may
rotate even with the transfer lever in the
2H position. If this occurs, the auto-
locking hubs may make a clattering
noise. To avoid this, drive first in four-
wheel drive to warm up the vehicle and
differential gear oil. Then, shift to two-
wheel drive.
cIn cold weather, it may be necessary to
reduce speed or stop the vehicle in or-
der to shift from two-wheel drive to
four-wheel drive.cWhen shifting into or out of four-wheel
drive while driving, do not stop shift
lever movement midway. An incomplete
shift may cause a clattering noise from
the auto-locking hubs. Continued use
of the vehicle with this noise may dam-
age the hub lock. Drive in four-wheel
drive to stop the noise. Shift to two-
wheel drive as described.
For Automatic transmission models:
When moving the transfer lever from 4H or 4L to
4L or 4H, you must always move it quickly
through the N position. If you are slow to shift, the
engine idle speed will allow the transfer gears to
speed up and gear clashing will occur.
Do not move the transfer lever from 4H or 4L to
4L or 4H, from 2H to 4L and from 4L to 2H with
the engine turned off. Otherwise, you may have
difficulty in moving the transfer lever to the de-
sired position.
Do not leave the transfer lever in the N position
with the engine running. Stopping with the trans-
fer case in the N position may cause gear grind-
ing when selecting another gear. Changing the
transfer case gear quickly and smoothly will elimi-
nate this.
Starting and driving5-23
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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................8-6
Engine cooling system.............................8-9
Checking engine coolant level...................8-9
Changing engine coolant.......................8-10
Engine oil........................................8-10
Checking engine oil level.......................8-10
Changing engine oil...........................8-11
Changing engine oil filter.......................8-13
Automatic transmission fluid.......................8-14
Temperature conditions for checking.............8-14
Power steering fluid...............................8-15
Brake and clutch fluid.............................8-16
Brake fluid....................................8-16
Clutch fluid...................................8-17
Window washer fluid.............................8-17
Window washer fluid reservoir..................8-17
Battery..........................................8-18
Jump starting.................................8-19
Drive belts.......................................8-20Spark plugs......................................8-21
Replacing spark plugs.........................8-21
Air cleaner.......................................8-23
In-cabin Microfilter (if so equipped)..............8-23
Windshield wiper blades..........................8-26
Cleaning.....................................8-26
Replacing....................................8-26
Parking brake and brake pedal.....................8-27
Checking parking brake........................8-27
Checking brake pedal..........................8-27
Brake booster.................................8-28
Fuses...........................................8-29
Passenger compartment.......................8-29
Keyfob battery replacement........................8-30
Lights...........................................8-31
Headlights....................................8-31
Fog lights (if so equipped)......................8-32
Exterior and interior lights.......................8-34
Wheels and tires.................................8-37
Tire pressure..................................8-37
Types of tires..................................8-37
Tire chains....................................8-38
Changing wheels and tires.....................8-39
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Brake pedal and booster*Check the pedal for
smooth operation and make sure it has the proper
distance under it when depressed fully. Check
the brake booster function. Be certain to keep the
floor mat away from the pedal.
Parking brake*Check that the pedal has the
proper travel and confirm that your vehicle is held
securely on a fairly steep hill with only the parking
brake applied.
Automatic transmission P (Park) position
mechanismCheck that the lock release button
on the shift selector lever operates properly and
smoothly. On a fairly steep hill check that your
vehicle is held securely with the selector lever in
the P position without applying any brakes.
Under the hood and vehicle
The maintenance items listed here should be
checked periodically (for example, each time you
check the engine oil or refuel) .
Windshield washer fluid*Check that there is
adequate fluid in the reservoir.
Engine oil level*Check the level after parking
the vehicle on a level surface with the engine off.
Wait more than 10 minutes for the oil to drain
back into the oil pan.Brake and clutch fluid levels*Make sure that
the brake and clutch fluid level is between the
MIN and MAX lines on the reservoir.
Power steering fluid level* and linesCheck
the level when the fluid is cold, with the engine
off. Check the lines for proper attachment, leaks,
cracks, etc.
Automatic transmission fluid level*Check
the level after putting the selector lever in P with
the engine idling at operating temperature.
Engine coolant level*Check the coolant level
when the engine is cold.
Radiator and hosesCheck the front of the
radiator and clean off any dirt, insects, leaves,
etc., that may have accumulated. Make sure the
hoses have no cracks, deformation, rot or loose
connections.
Engine drive belts*Make sure the drive belts
are not frayed, worn, cracked or oily.
Battery*Check the fluid level in each cell. It
should be between the MAX and MIN lines. Ve-
hicles operated in high temperatures or under
severe conditions require frequent checks of the
battery fluid level.
Exhaust systemMake sure there are no loose
supports, cracks or holes. If the sound of the
exhaust seems unusual or there is a smell ofexhaust fumes, immediately have the exhaust
system inspected by a NISSAN dealer. See the
carbon monoxide warning in the “Starting and
driving” section of this manual.
UnderbodyThe underbody is frequently ex-
posed to corrosive substances such as those
used on icy roads or to control dust. It is very
important to remove these substances from the
underbody, otherwise rust may form on the floor
pan, frame, fuel lines and exhaust system. At the
end of winter, the underbody should be thor-
oughly flushed with plain water, in those areas
where mud and dirt may have accumulated. See
the “Appearance and care” section of this
manual.
Fluid leaksCheck under the vehicle for fuel, oil,
water or other fluid leaks after the vehicle has
been parked for a while. Water dripping from the
air conditioner after use is normal. If you should
notice any leaks or if gasoline fumes are evident,
check for the cause and have it corrected imme-
diately.
8-4Maintenance and do-it-yourself
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When performing any inspection or maintenance
work on your vehicle, always take care to prevent
serious accidental injury to yourself or damage to
the vehicle. The following are general precau-
tions which should be closely observed.
WARNING
cPark the vehicle on a level surface, ap-
ply the parking brake securely and
block the wheels to prevent the vehicle
from moving. For manual transmission
models, move the shift lever to N (Neu-
tral) . For automatic transmission mod-
els, move the selector lever to P (Park) .
cBe sure the ignition key is in the OFF or
LOCK position when performing any
parts replacement or repairs.
cNever leave the engine or automatic
transmission related component har-
nesses disconnected while the ignition
switch is in the ON position.
cNever connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position.
cIf you must work with the engine run-
ning, keep your hands, clothing, hair
and tools away from moving fans, belts
and any other moving parts.cIt is advisable to secure or remove any
loose clothing and remove any jewelry,
such as rings, watches, etc. before
working on your vehicle.
cAlways wear eye protection whenever
you work on your vehicle.
cIf you must run the engine in an en-
closed space such as a garage, be sure
there is proper ventilation for exhaust
gases to escape.
cNever get under the vehicle while it is
supported only by a jack. If it is neces-
sary to work under the vehicle, support
it with safety stands.
cKeep smoking materials, flame and
sparks away from the fuel tank and
battery.
cOn gasoline engine models with the
multiport fuel injection (MFI) system,
the fuel filter or fuel lines should be
serviced by a NISSAN dealer because
the fuel lines are under high pressure
even when the engine is off.
CAUTION
cDo not work under the hood while the
engine is hot. Turn the engine off and
wait until it cools down.
cAvoid contact with used engine oil and
coolant. Improperly disposed engine
oil, engine coolant and/or other vehicle
fluids can damage the environment. Al-
ways conform to local regulations for
disposal of vehicle fluid.
This “Maintenance and do-it-yourself” section
gives instructions regarding only those items
which are relatively easy for an owner to perform.
A genuine NISSAN service manual is also avail-
able. See “Owner’s Manual/Service Manual or-
der information” in the “Technical and consumer
information” section of this manual.
You should be aware that incomplete or improper
servicing may result in operating difficulties or
excessive emissions, and could affect warranty
coverage.If in doubt about any servicing,
have it done by a NISSAN dealer.
MAINTENANCE PRECAUTIONS
Maintenance and do-it-yourself8-5
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