2003 NISSAN ALTIMA maintenance

Welcome to the growing family of new NISSAN
owners. This vehicle is delivered to you with
confidence. It was produced using the latest
techniques and strict quality control.
This manual was prepared to help you under-
stand the operation and maintenance of your
vehicle so that you may enjoy many miles (kilome-
ters) of driving pleasure. Please read through this
manual before operating your vehicle.
A separate Warranty Information Booklet
explains details about the warranties cov-
ering your vehicle. The “NISSAN Service
and Maintenance Guide” explains details
about maintaining and servicing your ve-
hicle. Additionally, a separate Customer
Care/Lemon Law Booklet (U.S. only) will
explain how to resolve any concerns you
may have with your vehicle, as well as
clarify your rights under your state’s lemon
law.
Your NISSAN dealership knows your vehicle
best. When you require any service or have any
questions, they will be glad to assist you with the
extensive resources available to them.Before driving your vehicle please read this Own-
er’s Manual carefully. This will ensure familiarity
with controls and maintenance requirements, as-
sisting you in the safe operation of your vehicle.
WARNING
IMPORTANT SAFETY INFORMATION RE-
MINDERS FOR SAFETY!
Follow these important driving rules to
help ensure a safe and complete trip for
you and your passengers!
cNEVER drive under the influence of al-
cohol or drugs.
cALWAYS observe posted speed limits
and never drive too fast for conditions.
cALWAYS use your seat belts and appro-
priate child restraint systems. Preteen
children should be seated in the rear
seat.
cALWAYS provide information about the
proper use of vehicle safety features to
all occupants of the vehicle.
cALWAYS review this owner’s manual for
important safety information.
MODIFICATION OF YOUR VEHICLE
This vehicle should not be modified.
Modification could affect its
performance, safety or durability, and
may even violate governmental
regulations. In addition, damage or per-
formance problems resulting from
modifications may not be covered un-
der NISSAN warranties.
FOREWORD READ FIRST—THEN DRIVE SAFELY
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The inside pages of this manual contain
a minimum of 50% recycled fibers,
including 10% post-consumer fibers.

Your new NISSAN is the result of our dedication to
produce the finest in safe, reliable and economical
transportation. Your vehicle is the product of a suc-
cessful worldwide company that manufactures cars
and trucks in over 17 countries and distributes them
in 170 nations.
NISSAN vehicles are designed and manufactured
by Nissan Motor Co., Ltd. which was founded in
Tokyo, Japan in 1933, and NISSAN affiliates world-
wide, collectively growing to become the fifth largest
automaker in the world. In addition to cars and
trucks, NISSAN also makes forklift trucks, marine
engines, boats and other diversified products.
NISSAN has made a substantial and growing in-
vestment in North America. NISSAN’s commitment
is over $6 billion dollars in capital investments in
facilities across the continent. Some of the facilities
include the Nissan Manufacturing facilities in Can-
ton, Mississippi and in Smyrna, Tennessee, vehiclestyling design at Nissan Design America, Inc. in San
Diego, California, and engineering at Nissan Tech-
nical Center North America in Farmington Hills,
Michigan. Additionally, NISSAN employs nearly
19,000 people throughout the United States,
Canada, and Mexico. An additional 60,000 people
work for the 1,250 NISSAN and INFINITI dealers
across North America.
NISSAN is also a substantial contributor to the
Canadian economy. Nissan Canada Inc., its suppli-
ers and over 150 dealers employ approximately
4,500 people. These include company employees
and the staffs of NISSAN dealers all across Canada.
In addition, many Canadians work for companies
that supply NISSAN and NISSAN dealers with ma-
terials and services ranging from the operation of
port facilities and transportation services, to the
supply of lubricants, parts and accessories.NISSAN pioneered the use of electronics and com-
puters in automobiles, and has led the industry in
improving both performance and fuel efficiency
through new engine designs and the use of syn-
thetic materials to reduce vehicle weight. The com-
pany has also developed ways to build quality into its
vehicles at each stage of the production process,
both through extensive use of automation and —
most importantly — through an awareness that
people
are the central element in quality control.
From the time the parts arrived from our suppliers
until you took delivery of your new NISSAN, dozens
of checks were made to ensure that only the best job
was being done in producing and delivering your
vehicle. NISSAN also takes great care to ensure that
when you take your NISSAN to your dealer for
maintenance, the service technician will perform his
work according to the quality standards that have
been established by NISSAN.
Safety has also been built into your NISSAN. As you
know, seat belts are an integral part of the safety
systems that will help protect you and your passen-
gers in the event of a sudden stop or an accident.
We urge you to use the seat belts every time you
drive the vehicle.
The NISSAN story of growth and achievement re-
flects our major goal: to provide you, our customer,
with a vehicle that is built with quality and craftsman-
ship — a product that we can be proud to build and
you can be proud to own.
WFW0002
WELCOME TO THE WORLD OF NISSAN
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Table of
ContentsSeats, restraints and supplemental air bag systems
Instruments and controls
Pre-driving checks and adjustments
Heater, air conditioner and audio systems
Starting and driving
In case of emergency
Appearance and care
Maintenance and do-it-yourself
Technical and consumer information
Index
1
2
3
4
5
6
7
8
9
10

1 Seats, restraints and supplemental air
bag systems
Seats............................................1-2
Front manual seat adjustment....................1-2
Front power seat adjustment (if so equipped
for Driver’s seat)................................1-4
Folding rear seat...............................1-6
Head restraint adjustment.......................1-7
Supplemental restraint system......................1-8
Precautions on supplemental restraint
system........................................1-8
Supplemental air bag warning labels.............1-20
Supplemental air bag warning light..............1-20
Seat belts.......................................1-22
Precautions on seat belt usage..................1-22
Child safety...................................1-24Pregnant women..............................1-25
Injured persons................................1-25
Three-point type seat belt with retractor..........1-26
Seat belt extenders............................1-29
Seat belt maintenance.........................1-29
Child restraints...................................1-30
Precautions on child restraints..................1-30
Installation on rear seat center or outboard
positions.....................................1-32
LATCH (lower anchors and tether for
children) system...............................1-37
Top tether strap child restraint..................1-38
Installation on front passenger seat..............1-39
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cMaintenance on and around the supple-
mental front air bag system should be
done by a NISSAN dealer. Installation
of electrical equipment should also be
done by a NISSAN dealer. The Supple-
mental Restraint System (SRS) wiring
should not be modified or discon-
nected. Unauthorized electrical test
equipment and probing devices should
not be used on the air bag system.
cA cracked windshield should be re-
placed immediately by a qualified re-
pair facility. A cracked windshield could
affect inflation of the supplemental air
bag system.
cThe SRS wiring harness connectors are
yellow and orange for easy
identification.
When selling your vehicle, we request that you
inform the buyer about the supplemental front air
bag system and guide the buyer to the appropri-
ate sections in this Owner’s Manual.
Supplemental side-impact air bag and
curtain side-impact air bags system (if
so equipped)
The supplemental side-impact air bags are lo-
cated in the outside of the seatback of the front
seats. The supplemental curtain side-impact air
bags are located in the side roof rails. These
systems are designed to meet voluntary guide-
lines to help reduce the risk of injury to out-of-
position occupants.However, all of the infor-
mation, cautions and warnings in this
manual still apply and must be followed.
The supplemental side air bags and curtain side-
impact air bags are designed to inflate in higherseverity side collisions, although they may inflate
if the forces in another type of collision are similar
to those of a higher severity side impact. They are
designed to inflate on the side where the vehicle
is impacted. They may not inflate in certain side
collisions.
Vehicle damage (or lack of it) is not always an
indication of proper supplemental side air bag
and curtain side-impact air bag operation.
When the supplemental side air bag and curtain
side-impact air bag inflate, a fairly loud noise may
be heard, followed by release of smoke. This
smoke is not harmful and does not indicate a fire.
Care should be taken not to inhale it, as it may
cause irritation and choking. Those with a history
of a breathing condition should get fresh air
promptly.
Supplemental side air bags, along with the use of
seat belts, help to cushion the impact force on
the chest of the front occupants. Curtain side-
impact air bags help to cushion the impact force
to the head of occupants in the front and rear
outboard seating positions. They can help save
lives and reduce serious injuries. However, an
inflating side air bag and curtain side-impact air
bag may cause abrasions or other injuries.
Supplemental side air bags and curtain side-
impact air bags do not provide restraint to the
lower body.
LRS0105
Seats, restraints and supplemental air bag systems1-17
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WARNING
If the supplemental air bag warning light
is on, it could mean that the supplemental
front air bag, supplemental side air bag,
curtain side-impact air bag systems (if so
equipped) and/or pre-tensioner seat belt
systems will not operate in an accident.
Repair and replacement procedure
The supplemental front air bags, supplemental
side air bags, curtain side-impact air bags (if so
equipped) and pre-tensioner seat belts are de-
signed to inflate on a one-time-only basis. As a
reminder, unless it is damaged, the supplemental
air bag warning light remains illuminated after
inflation has occurred. Repair and replacement of
these supplemental air bag systems should be
done only by a NISSAN dealer.
When maintenance work is required on the ve-
hicle, the supplemental front air bags, supple-
mental side air bags, curtain side-impact air bags
(if so equipped) , pre-tensioner seat belts and
related parts should be pointed out to the person
performing the maintenance. The ignition key
should always be in the LOCK position when
working under the hood or inside the vehicle.
WARNING
cOnce a supplemental front air bag,
supplemental side air bag or curtain
side-impact air bag has inflated, the air
bag module will not function again and
must be replaced. Additionally, if any of
the supplemental front air bags inflate,
the activated pre-tensioner seat belts
must also be replaced. The air bag mod-
ule and pre-tensioner seat belt system
should be replaced by a NISSAN dealer.
The air bag module and pre-tensioner
seat belt system cannot be repaired.
cThe supplemental front air bag, side air
bag and curtain side-impact air bag sys-
tems, and the pre-tensioner seat belt
system should be inspected by a
NISSAN dealer if there is any damage to
the front end or side portion of the
vehicle.
cIf you need to dispose of the supple-
mental air bag, pre-tensioner seat belt
system or scrap the vehicle, contact a
NISSAN dealer. Correct supplemental
air bag and pre-tensioner seat belt sys-
tem disposal procedures are set forth in
the appropriate NISSAN Service
Manual. Incorrect disposal procedures
could cause personal injury.
Seats, restraints and supplemental air bag systems1-21
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s2Move the shoulder belt anchor to the desired
position so the belt passes over the center of
the shoulder.
WARNING
cAfter adjustment, release the adjust-
ment button and try to move the shoul-
der belt anchor up and down to make
sure it is securely fixed in position.
cThe shoulder belt anchor height should
be adjusted to the position best for you.
Failure to do so may reduce the effec-
tiveness of the entire restraint system
and increase the chance or severity of
injury in an accident.
SEAT BELT EXTENDERS
If, because of body size or driving position, it is
not possible to properly fit the lap-shoulder belt
and fasten it, an extender is available which is
compatible with the installed seat belts. The ex-
tender adds approximately 8 inches (200 mm) of
length and may be used for either the driver or
front passenger seating position. See a NISSAN
dealer for assistance if an extender is required.
WARNING
cOnly NISSAN seat belt extenders, made
by the same company which made the
original equipment seat belts, should
be used with NISSAN seat belts.
cAdults and children who can use the
standard seat belt should not use an
extender. Such unnecessary use could
result in serious personal injury in the
event of an accident.
cNever use seat belt extenders to install
child restraints. If the child restraint is
not secured properly, the child could be
seriously injured in a collision or a sud-
den stop.
SEAT BELT MAINTENANCE
cTo clean the seat belt webbing,apply a
mild soap solution or any solution recom-
mended for cleaning upholstery or carpet.
Then wipe with a cloth and allow the seat
belts to dry in the shade. Do not allow the
seat belts to retract until they are completely
dry.
cIf dirt builds up in the shoulder belt
guideof the seat belt anchors, the seat
belts may retract slowly. Wipe the shoulder
belt guide with a clean, dry cloth.cPeriodically check to see that the seat
belt and the metal components,such as
buckles, tongues, retractors, flexible wires
and anchors, work properly. If loose parts,
deterioration, cuts or other damage on the
webbing is found, the entire seat belt as-
sembly should be replaced.
Seats, restraints and supplemental air bag systems1-29
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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. If the brake fluid level is correct, have the
brake system checked by a NISSAN dealer.
WARNING
cYour brake system may not be working
properly if the warning light is on. Driv-
ing could be dangerous. If you judge it
to be safe, drive carefully to the nearest
service station for repairs. Otherwise,
have your vehicle towed because driv-
ing it could be dangerous.cPressing the brake pedal with the en-
gine stopped and/or a low brake fluid
level may increase your stopping dis-
tance and braking will require greater
pedal effort as well as pedal travel.
cIf the brake fluid level is below the
MINIMUM or MIN mark on the brake
fluid reservoir, do not drive until the
brake system has been checked at a
NISSAN dealer.
Charge warning light
If this light comes on while the engine is running,
it may indicate the charging system is not func-
tioning properly. Turn the engine off and check
the generator belt. If the belt is loose, broken,
missing, or if the light remains on, see a NISSAN
dealer immediately.
CAUTION
Do not continue driving if the generator
belt is loose, broken or missing.
Door open warning light
This light comes on when any of the doors are not
closed securely while the ignition key is in the ON
position.
Engine oil pressure warning
light
This light warns of low engine oil pressure. If the
light flickers or comes on during normal driving,
pull off the road in a safe area, stop the engine
immediatelyand call a NISSAN dealer.
The engine oil pressure warning light is not
designed to indicate a low oil level. Use the
dipstick to check the oil level.See “Engine
oil” in the “Maintenance and do-it-yourself” sec-
tion of this manual.
CAUTION
Running the engine with the engine oil
pressure warning light on could cause se-
rious damage to the engine almost imme-
diately. Such damage is not covered by
warranty. Turn off the engine as soon as it
is safe to do so.
Low fuel warning light
This light comes on when the fuel level in the fuel
tank is getting low. Refuel as soon as it is conve-
nient, preferably before the fuel gauge reaches E
(Empty) .There will be a small reserve of fuel
in the tank when the fuel gauge needle
reaches E (Empty) .
Instruments and controls2-9
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