brakes NISSAN ALTIMA 2003 L31 / 3.G Owners Manual

The light comes on when the traction control off
switch is pushed to OFF. This indicates the trac-
tion control system is not operating.
Push the traction control off switch again or re-
start the engine and the system will operate nor-
mally. See “Traction control” in the “Starting and
driving” section of this manual.
Turn signal/hazard indicator
lights
The appropriate light flashes when the turn signal
switch is activated.
Both lights flash when the hazard switch is turned
on.
AUDIBLE REMINDERS
Brake pad wear warning
The disc brake pads have audible wear warnings.
When a brake pad requires replacement, it
makes a high pitched scraping sound when the
vehicle is in motion, whether or not the brake
pedal is depressed. Have the brakes checked as
soon as possible if the warning sound is heard.
Key reminder chime
A chime sounds if the driver’s door is opened
while the key is left in the ignition switch. Remove
the key and take it with you when leaving the
vehicle.
Light reminder chime
With the ignition switch in the OFF position, a
chime sounds when the driver’s door is opened if
the headlights or parking lights are on.
Turn the headlight control switch off before leav-
ing the vehicle.
Your vehicle has two types of security systems:
cNISSAN Vehicle Immobilizer System—NVIS
cVehicle security system (if so equipped)
NISSAN VEHICLE IMMOBILIZER
SYSTEM (NVIS)
The NISSAN Vehicle Immobilizer System (NVIS)
will not allow the engine to start without the use of
a registered NVIS key.
LIC0301
SECURITY SYSTEMS
2-12Instruments and controls
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cHEADED UPHILL OR DOWNHILL, NO
CURB:
sC
Turn the wheels toward the side of the road
so the vehicle will move away from the cen-
ter of the road if it moves.
4. Turn the ignition key to the LOCK position
and remove the key.The power assisted steering is designed to use a
hydraulic pump, driven by the engine, to assist
steering.
If the engine stops or the drive belt breaks, you
will still have control of the vehicle. However,
much greater steering effort is needed, especially
in sharp turns and at low speeds.
WARNING
If the engine is not running or is turned off
while driving, the power assist for the
steering will not work. Steering will be
much harder to operate.The brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking at two wheels.
BRAKE PRECAUTIONS
Vacuum assisted brakes
The brake booster aids braking by using engine
vacuum. If the engine stops, you can stop the
vehicle by depressing the brake pedal. However,
greater foot pressure on the brake pedal will be
required to stop the vehicle and stopping dis-
tance will be longer.
Using the brakes
Avoid resting your foot on the brake pedal while
driving. This will overheat the brakes, wear out the
brake linings and pads faster, and reduce gas
mileage.
To help reduce brake wear and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down a
slope or long grade. Overheated brakes may
reduce braking performance and could result in
loss of vehicle control.
POWER STEERING BRAKE SYSTEM
Starting and driving5-17
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WARNING
cWhile driving on a slippery surface, be
careful when braking, accelerating or
downshifting. Abrupt braking or accel-
erating could cause the wheels to skid
and result in an accident.
cIf the engine is not running or is turned
off while driving, the power assist for
the brakes will not work. Braking will be
harder.
Parking brake bedding
The parking brake shoes must be “bedded down”
whenever the stopping effect of the parking
brake is weakened or whenever the parking brake
shoes and/or drum/rotors are replaced, in order
to assure the best brake performance.
This procedure is described in the vehicle service
manual and can be performed by a NISSAN
dealer.
Wet brakes
When the vehicle is washed or driven through
water, the brakes may get wet. As a result, your
braking distance will be longer and the vehicle
may pull to one side during braking.
To dry the brakes, drive the vehicle at a safe
speed while lightly pressing the brake pedal toheat up the brakes. Do this until the brakes return
to normal. Avoid driving the vehicle at high
speeds until the brakes function correctly.
ANTI-LOCK BRAKE SYSTEM (ABS)
(if so equipped)
The anti-lock brake system controls the brakes at
each wheel so the wheels do not lock when
braking abruptly or when braking on slippery sur-
faces. The system detects the rotation speed at
each wheel and varies the brake fluid pressure to
prevent each wheel from locking and sliding. By
preventing wheel lockup, the system helps the
driver maintain steering control and helps to mini-
mize swerving and spinning on slippery surfaces.
Using the system
Depress the brake pedal and hold it down.
WARNING
Do not pump the brake pedal. Doing so
may result in increased stopping
distances.
Normal operation
The anti-lock brake system does not operate at
speeds below3-6MPH(5-10km/h) . (The
speeds vary according to road conditions.)When driving, the anti-lock brake system con-
trols the wheels so they will not lock when brak-
ing abruptly or when braking on a slippery road.
Thus, difficult steering and swerving of the ve-
hicle due to locked wheels is minimized. The
system detects the wheel rotation rate and elec-
tronically controls the pressure applied to each
brake. Slight vibration on the brake pedal accom-
panied by noise usually occurs while the ABS
system is operating. Such vibration and noise
encountered during abrupt braking is not a prob-
lem, but indicates that the system is functioning
properly. However, the pulsation may indicate
that road conditions are hazardous and extra care
is required while driving.
Self-test feature
The anti-lock brake system consists of electronic
sensors and hydraulic solenoids controlled by a
computer. The computer has a built-in diagnostic
feature that tests the system each time you start
the engine and move the vehicle at a low speed in
forward or reverse. When the self-test occurs,
you may hear a ‘‘clunk’’ noise and/or feel a pulsa-
tion in the brake pedal. This is normal and is not
an indication of any malfunction. If the computer
senses any malfunction, it switches the anti-lock
brake system off and turns on the ABS brake
warning light on the instrument panel. The brake
system then operates normally, but without anti-
lock assistance.
5-18Starting and driving
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When driving in areas using road salt or other
corrosive materials, check lubrication frequently.
Lights*Clean the headlights on a regular basis.
Make sure that the headlights, stop lights, tail
lights, turn signal lights, and other lights are all
operating properly and installed securely. Also
check headlight aim.
Road wheel nuts (lug nuts)*When checking
the tires, make sure no wheel nuts are missing,
and check for any loose wheel nuts. Tighten if
necessary.
Tire rotation*Tires should be rotated every
7,500 miles (12,000 km) .
Tire, wheel alignment and balanceIf the
vehicle should pull to either side while driving on
a straight and level road, or if you detect uneven
or abnormal tire wear, there may be a need for
wheel alignment.
If the steering wheel or seat vibrates at normal
highway speeds, wheel balancing may be
needed.
cFor additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information” (Canada) in
the Warranty Information Booklet .
Tires*Check the pressure with a gauge at least
once a month and always prior to long distancetrips. If necessary, adjust the pressure in all tires,
including the spare, to the pressure specified.
Check carefully for damage, cuts or excessive
wear.
WindshieldClean the windshield on a regular
basis. Check the windshield at least every six
months for cracks or other damage. Have a dam-
aged windshield repaired by a qualified repair
facility.
Windshield wiper blades*Check for cracks or
wear if they do not wipe properly.
Inside the vehicle
The maintenance items listed here should be
checked on a regular basis, such as when per-
forming periodic maintenance, cleaning the ve-
hicle, etc.
Additional information on the following
items with an “*” is found later in this sec-
tion.
Accelerator pedalCheck the pedal for smooth
operation and make sure the pedal does not bind
or require uneven effort. Keep the floor mat away
from the pedal.
Automatic transmission P (Park) position
mechanismOn a fairly steep hill check that your
vehicle is held securely with the selector lever in
the P position without applying any brakes.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.
BrakesCheck that the brakes do not pull the
vehicle to one side when applied.
Clutch pedal*Make sure the pedal operates
smoothly and check that it has the proper free
travel.
Parking brake*Check that the lever has the
proper travel and confirm that your vehicle is held
securely on a fairly steep hill with only the parking
brake applied.
SeatsCheck seat position controls such as seat
adjusters, seatback recliner, etc. to ensure they
operate smoothly and all latches lock securely in
every position. Check that the head restraints
move up and down smoothly and the locks (if so
equipped) hold securely in all latched positions.
Seat beltsCheck that all parts of the seat belt
system (for example, buckles, anchors, adjusters
and retractors) operate properly and smoothly,
and are installed securely. Check the belt web-
bing for cuts, fraying, wear or damage.
Steering wheelCheck for changes in the steer-
ing system, such as excessive freeplay, hard
steering or strange noises.
Maintenance and do-it-yourself8-3
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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
See a NISSAN dealer for a brake system
check if the brake pedal height does not
return to normal.
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 more information regarding
brake inspections, see the appropriate mainte-nance schedule information in the “NISSAN Ser-
vice and Maintenance Guide”.
BRAKE BOOSTER
Check the brake booster function as follows:
1. With the engine off, press and release the
brake pedal several times. When brake
pedal movement (distance of travel) remains
the same from one pedal application to the
next, continue on to the next step.
2. While depressing the brake pedal, start the
engine. The pedal height should drop a little.
3. With the brake pedal depressed, stop the
engine. Keep the pedal depressed for about
30 seconds. The pedal height should not
change.
4. Run the engine for one minute without de-
pressing the brake pedal, then turn it off.
Depress the brake pedal several times. The
pedal travel distance will decrease gradually
with each depression as the vacuum is re-
leased from the booster.
If the brakes do not operate properly, have the
brakes checked by a NISSAN dealer.
ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher amperage
rating than specified on the fuse box
cover. This could damage the electrical
system 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.
2. Open the engine hood.
WDI0230
FUSES
Maintenance and do-it-yourself8-27
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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 rear view 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.
c
Always 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 the
wheels 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) .
cHave your vehicle serviced more often than
at intervals specified in the recommended
Maintenance Schedule in the “NISSAN Ser-
vice and Maintenance Guide”.
cWhen making a turn, your trailer wheels will
be closer to the inside of the turn than your
vehicle wheels. To compensate for this,
make a larger than normal turning radius
during the turn.
9-16Technical and consumer information
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cCrosswinds and rough roads will adversely
affect vehicle/trailer handling, possibly caus-
ing vehicle sway. When being passed by
larger vehicles, be prepared for possible
changes in crosswinds that could affect ve-
hicle handling. If swaying does occur, firmly
grip the steering wheel, steer straight ahead,
and immediately (but gradually) reduce ve-
hicle speed. This combination will help sta-
bilize the vehicle. Never increase speed.
cBe careful when passing other vehicles.
Passing while towing a trailer requires con-
siderably more distance than normal pass-
ing. Remember, the length of the trailer must
also pass the other vehicle before you can
safely change lanes.
cTo maintain engine braking efficiency and
electrical charging performance, do not use
5th gear (manual transmission) or overdrive
(automatic transmission) .
cAvoid holding the brake pedal down too long
or too frequently. This could cause the
brakes to overheat, resulting in reduced
braking efficiency.
When towing a trailer, transmission
oil/fluid should be changed more fre-
quently. For additional information, see the
“Maintenance and do-it-yourself” section
earlier in this manual.DOT (Department of Transportation) Quality
Grades: All passenger car tires must conform to
federal safety requirements in addition to these
grades.
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA Temperature A
Treadwear
Treadwear grade is a comparative rating based
on tire wear rate when tested under controlled
conditions on specified government test courses.
For example, a tire graded 150 would wear one
and a half (1-1/2) times as well on the govern-
ment course as a tire graded 100. However,
relative tire performance depends on actual driv-
ing conditions, and may vary significantly due to
variations in driving habits, service practices and
differences in road characteristics and climate.
Traction AA, A, B and C
The traction grades, from highest to lowest, are
AA, A, B, and C. Those grades represent the
tire’s ability to stop on wet pavement as mea-
sured under controlled conditions on specified
government test surfaces of asphalt and con-
crete. A tire marked C may have poor traction
performance.WARNING
The traction grade assigned to your ve-
hicle tires is based on straight-ahead
braking traction tests and does not in-
clude acceleration, cornering, hydroplan-
ing or peak traction characteristics.
Temperature A, B and C
Temperature grades are A (the highest) , B, and
C. They represent a tire’s resistance to heat
build-up, and its ability to dissipate heat when
tested under controlled conditions on a specified
indoor laboratory test wheel. Sustained high tem-
perature can cause tire material to degenerate,
reducing tire life. Excessive temperatures can
lead to sudden tire failure. Grade C corresponds
to a performance level which all passenger car
tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades A and B rep-
resent higher levels of performance on laboratory
test wheels than the minimum required by law.
UNIFORM TIRE QUALITY GRADING
Technical and consumer information9-17
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10 Index
A
Air bag (See supplemental restraint
system)......................1-8
Air bag warning light...........1-20, 2-10
Air cleaner housing filter............8-22
Air conditioner
Air conditioner operation...........4-5
Air conditioner service...........4-12
Air conditioner specification label.....9-11
Air conditioner system refrigerant and
lubrication recommendations........9-6
Heater and air conditioner
controls.................4-3, 4-11
Servicing air conditioner..........4-12
Air flow charts..................4-6
Alarm system
(See vehicle security system).........2-12
Anchor point locations.............1-38
Antenna.....................4-28
Anti-lock brake system (ABS).........5-18
Anti-lock brake warning light..........2-8
Armrests.....................1-7
Audible reminders................2-12
Audio system..................4-13
FM-AM radio with compact disc (CD)
changer...................4-20
FM-AM radio with compact disc (CD)
player....................4-15
Radio....................4-13
Autolight switch.................2-20Automatic
Automatic power window switch.....2-34
Automatic transmission fluid (ATF). . . .8-14
Driving with automatic transmission.....5-7
Transmission selector lever lock release . .5-9
B
Battery......................8-18
Charge warning light.............2-9
Battery replacement
(See remote keyless entry system). . . .3-8, 8-30
Before starting the engine............5-6
Belts (See drive belts).............8-20
Brake
Anti-lock brake system (ABS).......5-18
Brake booster................8-27
Brake fluid..................8-16
Brake light (See stop light).........8-33
Brake pedal.................8-26
Brake system................5-17
Brake warning light..............2-9
Brake wear indicators........2-12, 8-27
Parking brake check............8-26
Parking brake operation..........5-12
Self-adjusting brakes............8-27
Break-in schedule................5-14
Brightness control
Instrument panel..............2-22
Bulb check/instrument panel..........2-8
Bulb replacement................8-33C
Capacities and recommended
fuel/lubricants...................9-2
Car phone or CB radio.............4-28
Cargo (See vehicle loading information) . . .9-12
CD care and cleaning.............4-27
Check engine indicator light
(See malfunction indicator light)........2-11
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...........2-12
Cleaning exterior and interior..........7-2
Clock...................4-16, 4-21
Clutch
Clutch fluid.................8-17
Cold weather driving..............5-20
Controls
Heater and air conditioner controls .4-3, 4-11
Coolant
Capacities and recommended
fuel/lubricants.................9-2
Changing engine coolant..........8-10
Checking engine coolant level........8-9
Engine coolant temperature gauge.....2-6
Corrosion protection...............7-5
Cruise control..................5-13
Cup holders...................2-28
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O
Octane rating (See fuel octane rating).....9-4
Odometer.....................2-3
Oil
Capacities and recommended
fuel/lubricants.................9-2
Changing engine oil............8-11
Changing engine oil filter..........8-13
Checking engine oil level..........8-10
Engine oil..................8-10
Engine oil and oil filter recommendation . .9-5
Engine oil viscosity..............9-5
Outside mirror control.............3-17
Overheat
If your vehicle overheats...........6-9
Owner’s manual order form..........9-20
Owner’s manual/service manual order
information....................9-20
P
Parking
Parking brake check............8-26
Parking brake operation..........5-12
Parking/parking on hills...........5-16
Power
Power door locks...............3-4
Power outlet.................2-26
Power steering fluid.............8-15
Power steering system...........5-17
Power windows...............2-33
Rear power windows............2-34
PrecautionsMaintenance 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...........4-28
FM-AM radio with compact disc (CD)
changer...................4-20
FM-AM radio with compact disc (CD)
player....................4-15
Readiness for inspection maintenance (I/M)
test........................9-19
Rear power windows..............2-34
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)......9-18
S
Safety
Child safety rear door lock..........3-5
Child seat belts...............1-30
Reporting safety defects (US only). . . .9-18
Seat adjustment
Front manual seat adjustment........1-2Front 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.............2-10
Seatback pockets................2-27
Seatback side pockets.............2-27
Seats
Adjustment..................1-2
Front seats..................1-2
Heated seats................2-25
Manual front seat adjustment........1-2
Rear seat...................1-6
Security system (Nissan vehicle immobilizer
system) , engine start.........2-12, 3-2, 5-5
Self-adjusting brakes..............8-27
Service manual order form...........9-20
Servicing air conditioner............4-12
Shift lock release.................5-9
Shifting
Automatic transmission...........5-8
Manual transmission............5-10
Shoulder belt height adjustment........1-28
Spark plug replacement............8-21
Speedometer...................2-3
Spotlights (See map light)...........2-37
10-4
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