2004 NISSAN FRONTIER ECU

Power (if so equipped)
If your vehicle is equipped with the vehicle
security system,the power door lock system
allows you to lock or unlock all doors at the same
time.
Turning the key toward the front
s1of the vehicle
locks all doors.
Turning the key 1 time toward the rear
s2of the
vehicle unlocks that door. From that position,
returning the key to neutral
s3(where the key can
only be removed and inserted) and turning it
toward the rear again
s4within 5 seconds un-
locks all doors.
LOCKING WITH INSIDE LOCK
KNOB
To lock the door without the key, move the inside
lock knob to the lock position
s1, then close the
door.
To unlock the door without the key, move the
inside lock knob to the unlock position
s2.
LOCKING WITH POWER DOOR
LOCK SWITCH (if so equipped)
To lock all the doors without a key, push the door
lock switch (driver or front passenger side) , to the
lock position
s1, then close the door. When
locking the door this way, be certain not to leave
the key inside the vehicle.
To unlock all the doors without a key, push the
door lock switch (driver or front passenger side)
to the unlock position
s2.
Driver’s side
WPD0154
Inside lock
WPD0155
Driver’s side
WPD0156
Pre-driving checks and adjustments3-3
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

BATTERY REPLACEMENT
Replace the battery in the keyfob as follows:
s1Open the lid using a coin.
s2Remove the battery.
s3Install a new battery with the “+” facing
down.
Recommended battery: Toshiba CR2025 or
equivalent.
s4Close the lid securely.5. Press the
button, then thebutton two or three times to check the key-
fob operation.
If the battery is removed for any reason
other than replacement, perform step 5.
cAn improperly disposed battery can
hurt the environment. Always confirm
local regulations for battery disposal.
cThe keyfob is water-resistant; how-
ever, if it does get wet, immediately
wipe completely dry.
cThe operational range of the keyfob
extends to approximately 33 ft (10 m)
from the vehicle. This range may vary
with conditions.
FCC Notice:
Changes or modifications not expressly ap-
proved by the manufacturer for compliance
could void the user’s authority to operate
the equipment.
This device complies with Part 15 of the FCC
Rules and RSS-210 of Industry Canada.
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, in-
cluding interference that may cause undes-
ired operation of the device.
WPD0160
3-8Pre-driving checks and adjustments
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

WARNING
cObjects viewed in the outside mirror on
the passenger side are closer than they
appear. Be careful when moving to the
right. Using only this mirror could cause
an accident. Use the inside mirror or
glance over your shoulder to properly
judge distances to other objects.
cDo not adjust the mirrors while driving.
You could lose control of your vehicle
and cause an accident.
TAILGATE
Opening the tailgate
Pull the tailgate handle upward and lower the
tailgate. The support cables hold the tailgate
open.
When closing the tailgate, make sure the latches
are securely locked.To open the tailgate to the lowest position, lift the
tailgate to a 45 degree angle, then release the
support cables.
Do not drive the vehicle with the tailgate
down, unless equipped with Nissan’s Bed
Extender (accessory) in the deployed posi-
tion.
For proper truck box loading see “Loading tips”
under the “Vehicle loading information” heading
in the “Technical and consumer information” sec-
tion of this manual.
WPD0175WPD0176
TRUCK BOX
Pre-driving checks and adjustments3-15
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

WARNING
cIt is extremely dangerous to ride in a
cargo area inside a vehicle. In a colli-
sion, people riding in these areas are
more likely to be seriously injured or
killed.
cDo not allow people to ride in any area
of your vehicle that is not equipped with
seats and seat belts.
cBe sure everyone in your vehicle is in a
seat and using a seat belt properly.
Removing the tailgate
1. Release the tailgate support cables.
2. Hold the tailgate at a 45 degree angle.
3. Pull the tailgate out from the left side hinge.
4. Remove the tailgate from the right side
hinge.
CAUTION
The tailgate is heavy. Be careful not to
drop it during removal.
Installing the tailgate
1. Insert the tailgate into the right side hinge.
2. Hold the tailgate at a 45 degree angle and
insert into the left side hinge.
3. Continue to hold the tailgate at a 45 degree
angle and attach the tailgate support cables.
4. Close the tailgate securely.
IC0175
3-16Pre-driving checks and adjustments
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

Locking the tailgate
To lock the tailgate, turn the key toward the pas-
senger side of the vehicle
s1. To unlock, turn the
key toward the driver side
s2.
TIE DOWN HOOKS
For your convenience, tie down hooks are placed
at each corner of the truck box. These may be
used to help secure cargo loaded into the truck
box.
cThe weight of the cargo load must be evenly
distributed over both the front and the rear
axles.
cAll cargo should be securely fastened with
ropes or straps to prevent it from shifting or
sliding within the vehicle.
WARNING
cProperly secure all cargo with ropes or
straps to help prevent it from sliding or
shifting. In a sudden stop or collision,
unsecured cargo could cause personal
injury.
WPD0275WPD0178
Pre-driving checks and adjustments3-17
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

WARNING
cOn hot, sunny days, temperatures in a
closed vehicle could quickly become
high enough to cause severe or possi-
bly fatal injuries to people or animals.
Do not leave children or adults who
would normally require the support of
others in your vehicle. Unattended pets
should not be left alone either.
cProperly secure all cargo with ropes or
straps to help prevent it from sliding or
shifting. Do not place cargo higher than
the seatbacks. In a sudden stop or col-
lision, unsecured cargo could cause
personal injury.
EXHAUST GAS (carbon monoxide)
WARNING
cDo not breathe exhaust gases; they
contain colorless and odorless carbon
monoxide. Carbon monoxide is danger-
ous. It can cause unconsciousness or
death.
cIf you suspect that exhaust fumes are
entering the vehicle, drive with all win-
dows fully open, and have the vehicle
inspected immediately.cDo not run the engine in closed spaces
such as a garage.
cDo not park the vehicle with the engine
running for any extended length of time.
cIf a special body, camper, or other
equipment is added for recreational or
other usage, follow the manufacturer’s
recommendation to prevent carbon
monoxide entry into the vehicle. Do not
occupy these areas while the engine is
running even if the vehicle is parked.
Some recreational vehicle appliances
such as stoves, refrigerators, heaters,
etc. may also generate carbon
monoxide.
cThe exhaust system and body should be
inspected by a qualified mechanic
whenever:
a. The vehicle is raised for service.
b. You suspect that exhaust fumes are
entering into the passenger
compartment.
c. You notice a change in the sound of
the exhaust system.
d. You have had an accident involving
damage to the exhaust system, un-
derbody, or rear of the vehicle.
THREE-WAY CATALYST
The three-way catalyst is an emission control
device installed in the exhaust system. Exhaust
gases in the three-way catalyst are burned at
high temperatures to help reduce pollutants.
WARNING
cThe exhaust gas and the exhaust sys-
tem are very hot. Keep people, animals
or flammable materials away from the
exhaust system components.
cDo not stop or park the vehicle over
flammable materials such as dry grass,
waste paper or rags. They may ignite
and cause a fire.
CAUTION
cDo not use leaded gasoline. Deposits
from leaded gasoline will seriously re-
duce the three-way catalyst’s ability to
help reduce exhaust pollutants.
PRECAUTIONS WHEN STARTING
AND DRIVING
5-2Starting and driving
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

cUnsecured cargo can be thrown around
when driving over rough terrain. Prop-
erly secure all cargo so it will not be
thrown forward and cause injury to you
or your passengers.
cTo avoid raising the center of gravity
excessively, do not exceed the rated
capacity of the roof rack (if so
equipped) and evenly distribute the
load. Secure heavy loads in the cargo
area as far forward and as low as pos-
sible. Do not equip the vehicle with tires
larger than specified in this manual.
This could cause your vehicle to roll
over.
cDo not grip the inside or spokes of the
steering wheel when driving off-road.
The steering wheel could move sud-
denly and injure your hands. Instead
drive with your fingers and thumbs on
the outside of the rim.
cBefore operating the vehicle, ensure
that the driver and all passengers have
their seat belts fastened.
cAlways drive with the floor mats in
place as the floor may become hot.cLower your speed when encountering
strong crosswinds. With a higher center
of gravity, your NISSAN is more af-
fected by strong side winds. Slower
speeds ensure better vehicle control.
cDo not drive beyond the performance
capablity of the tires, even with 4WD
engaged.
cAccelerating quickly, sharp steering
maneuvers or sudden braking may
cause loss of control.
cIf at all possible, avoid sharp turning
maneuvers, particularly at high speeds.
Your NISSAN four-wheel drive vehicle
has a higher center of gravity than a
two-wheel drive vehicle. The vehicle is
not designed for cornering at the same
speeds as conventional two-wheel
drive vehicles. Failure to operate this
vehicle correctly could result in loss of
control and/or a rollover accident.
cAlways use tires of the same type, size,
brand, construction (bias, bias-belted,
or radial) , and tread pattern on all four
wheels. Install tire chains on the rear
wheels when driving on slippery roads
and drive carefully.cBe sure to check the brakes immedi-
ately after driving in mud or water. See
“Brake system” later in this section for
“Wet brakes”.
cAvoid parking your vehicle on steep
hills. If you get out of the vehicle and it
rolls forward, backward or sideways,
you could be injured.
cWhenever you drive off-road through
sand, mud or water as deep as the
wheel hub, more frequent maintenance
may be required. See “Periodic mainte-
nance” in the “NISSAN Service and
Maintenance Guide.”
5-6Starting and driving
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X

the tires on your vehicle and are installed
according to the chain manufacturer’s sug-
gestions.Use only SAE Class “S”
chains.Class “S” chains are used on ve-
hicles with restricted tire to vehicle clear-
ance. Vehicles that can use Class “S” chains
are designed to meet the minimum clear-
ances between the tire and the closest ve-
hicle suspension or body component re-
quired to accommodate the use of a winter
traction device (tire chains or cables) . The
minimum clearances are determined using
the factory equipped tire size. Other types
may damage your vehicle. Use chain ten-
sioners when recommended by the tire
chain manufacturer to ensure a tight fit.
Loose end links of the tire chain must be
secured or removed to prevent the possibil-
ity of whipping action damage to the fenders
or underbody. If possible, avoid fully loading
your vehicle when using tire chains. In addi-
tion, drive at a reduced speed. Otherwise,
your vehicle may be damaged and/or vehicle
handling and performance may be adversely
affected.
Never install tire chains on spare tires. Do
not use tire chains on dry roads.SPECIAL WINTER EQUIPMENT
It is recommended that the following items be
carried in the vehicle during winter:
cA scraper and stiff-bristled brush to remove
ice and snow from the windows and wiper
blades.
cA sturdy, flat board to be placed under the
jack to give it firm support.
cA shovel to dig the vehicle out of snowdrifts.
cExtra window washer fluid to refill the reser-
voir tank.
DRIVING ON SNOW OR ICE
WARNING
cWet ice (32°F, 0°C and freezing rain) ,
very cold snow or ice can be slick and
very hard to drive on. The vehicle will
have much less traction or “grip” under
these conditions. Try to avoid driving on
wet ice until the road is salted or
sanded.
cWhatever the condition, drive with cau-
tion. Accelerate and slow down with
care. If accelerating or downshifting too
fast, the drive wheels will lose even
more traction.cAllow more stopping distance under
these conditions. Braking should be
started sooner than on dry pavement.
cAllow greater following distances on
slippery roads.
cWatch for slippery spots (glare ice) .
These may appear on an otherwise
clear road in shaded areas. If a patch of
ice is seen ahead, brake before reach-
ing it. Try not to brake while on the ice,
and avoid any sudden steering
maneuvers.
cDo not use the cruise control on slip-
pery roads.
cSnow can trap dangerous exhaust
gases under your vehicle. Keep snow
clear of the exhaust pipe and from
around your vehicle.
ENGINE BLOCK HEATER (if so
equipped)
An engine block heater to assist in extreme cold
temperature starting is available through a
NISSAN dealer.
5-32Starting and driving
ZREVIEW COPY:Ð2004 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
11/21/03Ðdebbie
X