2004 NISSAN ALTIMA ECU

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: Sanyo CR2025 or
equivalent.
s4Close the lid securely.5. Press the LOCK button, then the UNLOCK
button 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.
WPD0136
KEYFOB BATTERY REPLACEMENT
Maintenance and do-it-yourself8-29
ZREVIEW COPY:Ð2004 Altima(l30)
Owners Manual(owners)ÐUSA English(nna)
10/13/03Ðtbrooks
X

Snow tires
If snow tires are needed, it is necessary to select
tires equivalent in size and load rating to the
original equipment tires. If you do not, it can
adversely affect the safety and handling of your
vehicle.
Generally, snow tires have lower speed ratings
than factory equipped tires and may not match
the potential maximum vehicle speed. Never ex-
ceed the maximum speed rating of the tire.
If you install snow tires, they must be the same
size, brand, construction and tread pattern on all
four wheels.
For additional traction on icy roads, studded tires
may be used. However, some U.S. states and
Canadian provinces prohibit their use. Check
local, state and provincial laws before installing
studded tires. Skid and traction capabilities of
studded snow tires on wet or dry surfaces may be
poorer than that of non-studded snow tires.
TIRE CHAINS
Use of tire chains may be prohibited according to
location. Check the local laws before installing
tire chains. When installing tire chains, make sure
they are the proper size for the tires on your
vehicle and are installed according to the chain
manufacturer’s suggestions.Use only SAEclass “S” chains.Class “S” chains are used on
vehicles with restricted tire to vehicle clearance.
Vehicles that can use Class “S” chains are de-
signed to meet the minimum clearances between
the tire and the closest vehicle suspension or
body component required to accommodate the
use of a winter traction device (tire chains or
cables) . The minimum clearances are determined
using the factory equipped tires. Other types may
damage your vehicle. Use chain tensioners 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 pos-
sibility of whipping action damage to the fenders
or underbody. If possible, avoid fully loading your
vehicle when using tire chains. In addition, drive
at a reduced speed. Otherwise, your vehicle may
be damaged and/or vehicle handling and perfor-
mance may be adversely affected.
Tire chains must be installed only on the
front wheels and not on the rear wheels.
Never install tire chains on a TEMPORARY USE
ONLY spare tire.
Do not use tire chains on dry roads. Driving with
chains in such conditions can cause damage to
the various mechanisms of the vehicle due to
some overstress.
CHANGING WHEELS AND TIRES
Tire rotation
NISSAN recommends rotating the tires every
7,500 miles (12,000 km) .
See “Flat tire” in the “In case of emergency”
section of this manual for tire replacing proce-
dures.
As soon as possible, tighten the wheel nuts
to the specified torque with a torque
wrench.
Wheel nut tightening torque:
80 ft-lb (108 N·m)
WDI0258
8-40Maintenance and do-it-yourself
ZREVIEW COPY:Ð2004 Altima(l30)
Owners Manual(owners)ÐUSA English(nna)
10/13/03Ðtbrooks
X

cGAWR (Gross Axle Weight Rating) - maxi-
mum weight (load) limit specified for the
front or rear axle.
DETERMINING VEHICLE LOAD
CAPACITY
The load capacity of this vehicle is determined by
weight, not by available cargo space. For ex-
ample, a luggage rack, bike carrier, cartop carrier
or similar equipment does not increase load car-
rying capacity of your vehicle.
To determine vehicle load capacity:
Vehicle weight can be determined by using a
commercial-grade scale, found at places such as
a truck stop, gravel quarry, grain elevator, or a
scrap metal recycling facility.
1. Determine the curb weight of your vehicle.
2. Compare the curb weight amount to the
GVWR specified for your vehicle to deter-
mine how much more weight your vehicle
can carry.3. After loading (cargo and passengers) , re-
weigh your vehicle to determine if either
GVWR or GAWR for your vehicle is ex-
ceeded. If GVWR is exceeded, remove
cargo as necessary. If either the front or rear
GAWR is exceeded, shift the load or remove
cargo as necessary.
LOADING TIPS
cThe GVW must not exceed GVWR or
GAWR as specified on the F.M.V.S.S. certi-
fication label.
cDo not load the front and rear axle to the
GAWR. Doing so will exceed the GVWR.
WARNING
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.cDo not load your vehicle any heavier
than the GVWR or the maximum front
and rear GAWRs. If you do, parts of your
vehicle can break, tire damage could
occur, or it can change the way your
vehicle handles. This could result in
loss of control and cause personal
injury.
cOverloading not only can shorten the
life of your vehicle and the tire, but can
also cause unsafe vehicle handling and
longer braking distances. This may
cause a premature tire failure which
could result in a serious accident and
personal injury. Failures caused by
overloading are not covered by the ve-
hicle’s warranty.
INSTALLING FRONT LICENSE PLATE
Technical and consumer information9-13
ZREVIEW COPY:Ð2004 Altima(l30)
Owners Manual(owners)ÐUSA English(nna)
10/13/03Ðtbrooks
X

Maximum gross vehicle
weight/maximum gross axle weight
The gross vehicle weight of the towing vehicle
must not exceed the gross vehicle weight rating
(GVWR) shown on the F. M. V. S. S. certification
label. The gross vehicle weight equals the com-
bined weight of the unloaded vehicle, passen-
gers, luggage, hitch, trailer tongue load and any
other optional equipment. In addition, front or rear
gross axle weight must not exceed the gross axle
weight rating (GAWR) shown on the F. M. V. S. S.
certification label.
TOWING LOAD/SPECIFICATION
CHART
TOWING LOAD / SPECIFICATION CHART
UNIT: lb (kg)
MAXIMUM TOWING
LOAD1,000 (454)
MAXIMUM TONGUE
LOAD100 (45)
TOWING SAFETY
Trailer hitch
Choose a proper hitch for your vehicle and trailer.
A genuine NISSAN trailer hitch is available from
your NISSAN dealer. Make sure the trailer hitch is
securely attached to the vehicle, to help avoid
personal injury or property damage due to sway
caused by crosswinds, rough road surfaces or
passing trucks.
CAUTION
cDo not use axle-mounted hitches.
cThe hitch should not be attached to or
affect the operation of the impact-
absorbing bumper.cDo not modify the vehicle exhaust sys-
tem, brake system, etc. to install a
trailer hitch.
cTo reduce the possibility of additional
damage if your vehicle is struck from
the rear, where practical, remove the
hitch and/or receiver when not in use.
cAfter the hitch is removed, seal the bolt
holes to prevent exhaust fumes, water
or dust from entering the passenger
compartment.
cRegularly check that all trailer hitch
mounting bolts are securely mounted.
Tire pressures
cWhen towing a trailer, inflate the vehicle tires
to the recommended cold tire pressure indi-
cated on the tire placard.
cTrailer tire condition, size, load rating and
proper inflation pressure should be in accor-
dance with the trailer and tire manufacturer’s
specifications.
TI1012M
Technical and consumer information9-15
ZREVIEW COPY:Ð2004 Altima(l30)
Owners Manual(owners)ÐUSA English(nna)
10/13/03Ðtbrooks
X

Safety chains
Always use suitable safety chains between your
vehicle and the trailer. The safety chains should
be crossed and should be attached to the hitch,
not to the vehicle bumper or axle. Be sure to leave
enough slack in the chains to permit turning
corners.
Trailer lights
Trailer lights should comply with federal and/or
local regulations. When wiring the vehicle for
towing, connect the stop and tail light pickup into
the vehicle electrical circuit.
Trailer brakes
If your trailer is equipped with a braking system,
make sure it conforms to federal and/or local
regulations and that it is properly installed.
WARNING
Never connect a trailer brake system di-
rectly to the vehicle brake system.
Pre-towing tips
cBe certain your vehicle maintains a level
position when a loaded and/or unloaded
trailer is hitched. Do not drive the vehicle if it
has an abnormal nose-up or nose-down
condition; check for improper tongue load,overload, worn suspension or other possible
causes of either condition.
cAlways secure items in the trailer to prevent
load shift while driving.
cBe certain your rearview mirrors conform to
all federal, state or local regulations. If not,
install any mirrors required for towing before
driving the vehicle.
Trailer towing tips
In order to gain skill and an understanding of the
vehicle’s behavior, you should practice turning,
stopping and backing up in an area which is free
from traffic. Steering stability and braking perfor-
mance will be somewhat different than under
normal driving conditions.
cAlways secure items in the trailer to prevent
load shift while driving.
cAvoid abrupt starts, acceleration or stops.
cAvoid sharp turns or lane changes.
cAlways drive your vehicle at a moderate
speed.
cAlways block the wheels on both vehicle and
trailer when parking. Parking on a slope is
not recommended; however, if you must do
so, and if your vehicle is equipped with an
automatic transmission, first block thewheels and apply the parking brake, and
then move the transmission shift selector
lever into the P (Park) position. If you move
the shift selector lever to the P (Park) posi-
tion before blocking the wheels and applying
the parking brake, transmission damage
could occur.
cWhen going down a hill, shift into a lower
gear and use the engine braking effect.
When going up a long grade, downshift the
transmission to a lower gear and reduce
speed to reduce chances of engine over-
loading and/or overheating. However, for
long steep grades, do not stay in 1st or 2nd
gear when driving above 35 MPH (56 km/h) .
cIf the engine coolant rises to an extremely
high temperature when the air conditioner
system is on, turn off the air conditioner.
Coolant heat can be additionally vented by
opening the windows, switching the fan
control to high and setting the temperature
control to the HOT position.
cTrailer towing requires more fuel than normal
circumstances.
cAvoid towing a trailer for your vehicle’s first
500 miles (805 km) .
9-16Technical and consumer information
ZREVIEW COPY:Ð2004 Altima(l30)
Owners Manual(owners)ÐUSA English(nna)
10/13/03Ðtbrooks
X

10 Index
A
Air bag
(See supplemental restraint system)......1-8
Air bag warning light...........1-20, 2-11
Air cleaner housing filter............8-20
Air conditioner
Air conditioner operation...........4-5
Air conditioner service...........4-13
Air conditioner specification label.....9-11
Air conditioner system refrigerant and
lubrication recommendations........9-6
Heater and air conditioner
controls.................4-3, 4-12
Servicing air conditioner..........4-13
Air flow charts..................4-6
Alarm system
(See vehicle security system).........2-13
Anchor point locations.............1-38
Antenna.....................4-29
Anti-lock brake system (ABS).........5-17
Anti-lock brake warning light..........2-9
Armrests.....................1-7
Audible reminders................2-13
Audio system..................4-14
FM-AM radio with compact disc (CD)
changer...................4-22
FM-AM radio with compact disc (CD)
player....................4-17
Radio....................4-14
Autolight switch.................2-20Automatic
Automatic power window switch.....2-34
Automatic transmission fluid (ATF). . . .8-13
Automatic transmission position
indicator light................2-11
Driving with automatic transmission.....5-7
Transmission selector lever lock release . .5-9
Automatic anti-glare inside mirror.......3-16
B
Battery......................8-17
Charge warning light............2-10
Battery replacement
(See remote keyless entry system). . . .3-9, 8-29
Before starting the engine............5-6
Belts (See drive belts).............8-18
Brake
Anti-lock brake system (ABS).......5-17
Brake booster................8-26
Brake fluid..................8-15
Brake light (See stop light).........8-31
Brake pedal.................8-25
Brake system................5-17
Brake warning light.............2-10
Brake wear indicators........2-13, 8-26
Parking brake check............8-25
Parking brake operation..........5-12
Self-adjusting brakes............8-26
Break-in schedule................5-14Brightness control
Instrument panel..............2-21
Bulb check/instrument panel..........2-9
Bulb replacement................8-31
C
Capacities and recommended
fuel/lubricants...................9-2
Car phone or CB radio.............4-30
Cargo (See vehicle loading information) . . .9-12
CD care and cleaning.............4-28
Check engine indicator light
(See malfunction indicator light)........2-12
Child restraint with top tether strap......1-38
Child restraints.......1-24, 1-25, 1-30, 1-37
Precautions on child restraints.......1-30
Top tether strap anchor point locations . .1-38
Child safety rear door lock............3-5
Chimes, audible reminders...........2-13
Cleaning exterior and interior..........7-2
Clock...................4-18, 4-22
Clutch
Clutch fluid.................8-15
Cold weather driving..............5-20
Console box...................2-29
Controls
Heater and air conditioner
controls.................4-3, 4-12
ZREVIEW COPY:Ð2004 Altima(l30)
Owners Manual(owners)ÐUSA English(nna)
10/13/03Ðtbrooks
X

N
Nissan vehicle immobilizer system
(NVIS).................2-15, 3-2, 5-5
O
Octane rating (See fuel octane rating).....9-4
Odometer.....................2-4
Oil
Capacities and recommended
fuel/lubricants.................9-2
Changing engine oil............8-10
Changing engine oil filter..........8-12
Checking engine oil level..........8-9
Engine oil...................8-9
Engine oil and oil filter recommendation . .9-5
Engine oil pressure low/engine coolant
temperature high warning light.......2-10
Engine oil viscosity..............9-5
Overheat
If your vehicle overheats...........6-8
Owner’s manual order form..........9-21
Owner’s manual/service manual order
information....................9-21
P
Parking
Parking brake check............8-25
Parking brake operation..........5-12
Parking/parking on hills...........5-15Power
Power door locks...............3-4
Power outlet.................2-26
Power rear windows............2-33
Power steering fluid.............8-14
Power steering system...........5-16
Power windows...............2-32
Rear power windows............2-33
Precautions
Maintenance precautions..........8-5
Precautions on child restraints.......1-30
Precautions on seat belt usage......1-22
Precautions on supplemental restraint
system.....................1-8
Precautions when starting and driving . . .5-2
Push starting...................6-8
R
Radio
Car phone or CB radio...........4-30
FM-AM radio with compact disc (CD)
changer...................4-22
FM-AM radio with compact disc (CD)
player....................4-17
Readiness for inspection maintenance (I/M)
test........................9-19
Rear power windows..............2-33
Rear seat.....................1-6
Rear window defogger switch.........2-17
Refrigerant recommendation..........9-6
Registering your vehicle in another country. . .9-9
Remote keyless entry system..........3-5
Reporting safety defects (US only)......9-19S
Safety
Child safety rear door lock..........3-5
Child seat belts...............1-30
Reporting safety defects (US only). . . .9-19
Seat adjustment
Front manual seat adjustment........1-2
Front power seat adjustment........1-4
Rear seat adjustment.............1-6
Seat belt
Child safety.................1-24
Infants and small children.........1-25
Injured Person................1-25
Larger children...............1-25
Precautions on seat belt usage......1-22
Pregnant women..............1-25
Seat belt extenders.............1-29
Seat belt maintenance...........1-29
Seat belts..................1-22
Shoulder belt height adjustment......1-28
Three-point type with retractor.......1-26
Seat belt warning light.............2-11
Seatback pockets................2-27
Seats
Adjustment..................1-2
Front seats..................1-2
Heated seats................2-24
Manual front seat adjustment........1-2
Rear seat...................1-6
Security system (Nissan vehicle immobilizer
system) , engine start.........2-15, 3-2, 5-5
Self-adjusting brakes..............8-26
Service manual order form...........9-21
Servicing air conditioner............4-13
10-4
ZREVIEW COPY:Ð2004 Altima(l30)
Owners Manual(owners)ÐUSA English(nna)
10/13/03Ðtbrooks
X

Shift lock release.................5-9
Shifting
Automatic transmission...........5-8
Manual transmission............5-10
Shoulder belt height adjustment........1-28
Spark plug replacement............8-19
Speedometer...................2-4
Spotlights (See map light)...........2-37
SRS warning label...............1-20
Starting
Before starting the engine..........5-6
Jump starting.................6-6
Precautions when starting and driving . . .5-2
Push starting.................6-8
Starting the engine..............5-6
Steering
Power steering fluid.............8-14
Power steering system...........5-16
Tilting steering wheel............3-14
Stop light....................8-31
Storage.....................2-27
Sunglasses case................2-27
Sunglasses holder...............2-27
Sunroof.....................2-34
Supplemental air bag warning light . . .1-20, 2-11
Supplemental restraint system
Information and warning labels.......1-20
Precautions on supplemental restraint
system.....................1-8
Supplemental restraint system
(Supplemental air bag system).........1-8
Switch
Autolight switch...............2-20
Automatic power window switch.....2-34
Fog light switch...............2-22
Hazard warning flasher switch.......2-23Headlight and turn signal switch......2-18
Ignition switch................5-4
Power door lock switch...........3-4
Rear window defogger switch.......2-17
Traction control system (TCS) off
switch....................2-25
Windshield wiper and washer switch . . .2-16
T
Tachometer....................2-6
Temperature gauge
Engine coolant temperature gauge.....2-7
Engine oil pressure low/engine coolant
temperature high warning light.......2-10
Theft (Nissan vehicle immobilizer system) ,
engine start..............2-15, 3-2, 5-5
Three-way catalyst................5-2
Tilting steering wheel..............3-14
Tire
Flat tire....................6-2
Spare tire................6-3, 8-42
Tire chains..................8-40
Tire placard.................9-11
Tire pressure................8-38
Tire rotation.................8-40
Types of tires................8-39
Uniform tire quality grading.........9-18
Wheels and tires..............8-38
Wheel/tire size................9-8
Top tether strap child restraint.........1-38
Towing
Flat towing..................9-17
Tow truck towing...............6-9
Towing load/specification chart......9-15Trailer towing................9-14
Traction control system (TCS) off switch . . .2-25
Transceiver
HomeLinkTUniversal Transceiver.....2-38
Transmission
Automatic transmission fluid (ATF). . . .8-13
Driving with automatic transmission.....5-7
Driving with manual transmission.....5-10
Selector lever lock release..........5-9
Travel (See registering your vehicle in another
country)......................9-9
Trip odometer...................2-4
Trunk access through the rear seat.......1-6
Trunk lid lock opener lever...........3-11
Trunk light....................2-38
Turn signal switch (See headlight and
turn signal switch)............2-18, 2-22
U
Uniform tire quality grading...........9-18
V
Vanity mirror...................3-15
Vehicle dimensions and weights........9-8
Vehicle identification...............9-9
Vehicle identification number (VIN)
(Chassis number).................9-9
Vehicle identification number (VIN) plate. . . .9-9
Vehicle loading information...........9-12
Vehicle recovery.................6-11
Vehicle security system.............2-13
10-5
ZREVIEW COPY:Ð2004 Altima(l30)
Owners Manual(owners)ÐUSA English(nna)
10/13/03Ðtbrooks
X