2003 NISSAN FRONTIER Owners Manual

If you have a flat tire, see the “In case of
emergency” section in this manual.
TIRE PRESSURE
Maximum inflation pressure
Do not exceed the maximum inflation pressures
shown on the sidewall of the tire
s1.
Tire inflation pressure
Check the tire pressure (including the spare) at
least once a month and always prior to long
distance trips. Incorrect tire pressure may ad-
versely affect tire life and vehicle handling. Tire
pressure should be checked when tires areCOLD. Tires are considered COLD after the
vehicle has been parked for three or more hours,
or driven less than 1 mile (1.6 km) at moderate
speeds. COLD tire pressures are shown on the
tire placard affixed to the inside of the glove box
lid.
WARNING
cImproperly inflated tires can fail sud-
denly and cause an accident.
cThe vehicle weight capacity is indicated
on the F.M.V.S.S. certification label. Do
not load your vehicle beyond this ca-
pacity. Overloading your vehicle may
result in reduced tire life, unsafe oper-
ating conditions due to premature tire
failure, or unfavorable handling charac-
teristics and could also lead to a seri-
ous accident. Loading beyond the
specified capacity may also result in
failure of other vehicle components.
cBefore taking a long trip, or whenever
you heavily load your vehicle, use a tire
pressure gauge to ensure that the tire
pressures are at the specified level.cDo not drive your vehicle over 85 MPH
(137 km/h) unless it is equipped with
high speed rated tires. Driving faster
than 85 MPH (137 km/h) may result in
tire failure, loss of control and possible
injury.
cFor additional information regarding
tires, refer to Important Tire Safety In-
formation (US) or Tire Safety Informa-
tion (Canada) in the Warranty Informa-
tion Booklet.
TYPES OF TIRES
WARNING
cWhen changing or replacing tires, be
sure all four tires are of the same type
(i.e., Summer, All Season or Snow) and
construction. A NISSAN dealer may be
able to help you with information about
tire type, size, speed rating and avail-
ability. Replacement tires may have a
lower speed rating than the factory
equipped tires, and may not match the
potential maximum vehicle speed.
Never exceed the maximum speed rat-
ing of the tire.
WDI0210
WHEELS AND TIRES
Maintenance and do-it-yourself8-37
ZREVIEW COPY:Ð2003 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
01/15/03Ðarosenma
X

cFor additional information regarding
tires, refer to Important Tire Safety In-
formation (US) or Tire Safety Informa-
tion (Canada) in the Warranty Informa-
tion Booklet.
All season tires
NISSAN specifies All Season tires on some mod-
els to provide good performance all year, includ-
ing snowy and icy road conditions. All Season
tires are identified by ALL SEASON and/or M&S
on the tire sidewall. Snow tires have better snow
traction than All Season tires and may be more
appropriate in some areas.
Summer tires
NISSAN specifies summer tires on some models
to provide superior performance on dry roads.
Summer tire performance is substantially re-
duced in snow and ice. Summer tires do not have
the tire traction rating “M&S” on the tire sidewall.
If you plan to operate your vehicle in snowy or icy
conditions, NISSAN recommends the use of
SNOW tires or ALL SEASON tires on all four
wheels.
Snow tires
If snow tires are needed, it is necessary to select
tires equivalent in size and load rating to theoriginal 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 SAE
class “S” chains.Class9S9chains are used on
vehicles with restricted wheel well clearance.
Vehicles that can use Class “S” chains are de-
signed to meet the minimum clearances betweenthe 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 tire size. Other types
may damage your vehicle. Use chain tensioners
when recommended by the tire chain manufac-
turer to ensure a tight fit. Loose end links of the
tire chain must be secured or removed to prevent
the possibility of whipping action damage to the
fenders or underbody. If possible, avoid fully load-
ing 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.
Tire chains must be installed only on the
rear wheels and not on the front 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.
Use only the 2WD range when driving on clear
paved roads.
8-38Maintenance and do-it-yourself
ZREVIEW COPY:Ð2003 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
01/15/03Ðarosenma
X

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 in 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:
98 ft-lb (133 N·m)
The wheel nuts must be kept tightened to
specifications at all times. It is recom-
mended that wheel nuts be tightened to
specification at each tire rotation interval.
WARNING
cAfter rotating the tires, check and ad-
just the tire pressure.
cRetighten the wheel nuts when the ve-
hicle has been driven for 600 miles
(1,000 km) (also in cases of a flat tire,
etc.) .
cDo not include the spare tire in the tire
rotation.
cFor additional information regarding
tires, refer to Important Tire Safety In-
formation (US) or Tire Safety Informa-
tion (Canada) in the Warranty Informa-
tion Booklet.
1. Wear indicator
2. Location mark
Tire wear and damage
WARNING
cTires should be periodically inspected
for wear, cracking, bulging or objects
caught in the tread. If excessive wear,
cracks, bulging or deep cuts are found,
the tire(s) should be replaced.
WDI0258WDI0259
Maintenance and do-it-yourself8-39
ZREVIEW COPY:Ð2003 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
01/16/03Ðcathy
X

cThe original tires have built-in tread
wear indicators. When the wear indica-
tors are visible, the tire(s) should be
replaced.
cImproper service of the spare tire may
result in serious personal injury. If it is
necessary to repair the spare tire, con-
tact a NISSAN dealer.
cFor additional information regarding
tires, refer to Important Tire Safety In-
formation (US) or Tire Safety Informa-
tion (Canada) in the Warranty Informa-
tion Booklet.
Replacing wheels and tires
When replacing a tire, use the same size, tread
design, speed rating and load carrying capacity
as originally equipped. Recommended types and
sizes are shown in “Wheels/tire size” in the
“Technical and consumer information” section of
this manual.
WARNING
cThe use of tires other than those recom-
mended or the mixed use of tires of
different brands, construction (bias,
bias-belted or radial) , or tread patterns
can adversely affect the ride, braking,
handling, ground clearance, body-to-
tire clearance, tire chain clearance,
speedometer calibration, headlight aim
and bumper height. Some of these ef-
fects may lead to accidents and could
result in serious personal injury.
cIf the wheels are changed for any rea-
son, always replace with wheels which
have the same off-set dimension.
Wheels of a different off-set could
cause premature tire wear, degrade ve-
hicle handling characteristics and/or
interference with the brake
discs/drums. Such interference can
lead to decreased braking efficiency
and/or early brake pad/shoe wear. Re-
fer to “Wheel/tire size” in the “Techni-
cal and consumer information” section
of this manual for wheel off-set
dimensions.cWhen a spare tire is mounted or a wheel
is replaced, the low tire pressure warn-
ing system will not function. Contact
your NISSAN dealer as soon as pos-
sible for tire replacement and/or sys-
tem resetting (for models with the low
tire pressure warning system) .
cDo not install a deformed wheel or tire
even if it has been repaired. Such
wheels or tires could have structural
damage and could fail without warning.
cThe use of retread tires is not
recommended.
cFor additional information regarding
tires, refer to Important Tire Safety In-
formation (US) or Tire Safety Informa-
tion (Canada) in the Warranty Informa-
tion Booklet.
8-40Maintenance and do-it-yourself
ZREVIEW COPY:Ð2003 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
01/15/03Ðarosenma
X

Four-wheel drive models
CAUTION
Always use tires of the same type, size,
brand, construction (bias, bias-belted or
radial) , and tread pattern on all four
wheels. Failure to do so may result in a
circumference difference between tires
on the front and rear axles which will
cause excessive tire wear and may dam-
age the transmission, transfer case and
differential gears.
If excessive tire wear is found, it is recommended
that all four tires be replaced with tires of the
same size, brand, construction and tread pattern.
The tire pressure and wheel alignment should
also be checked and corrected as necessary.
Contact a NISSAN dealer.
Wheel balance
Unbalanced wheels may affect vehicle handling
and tire life. Even with regular use, wheels can get
out of balance. Therefore, they should be bal-
anced as required.
Wheel balance service should be per-
formed with the wheels off the vehicle.
Spin balancing the wheels on the vehicle
could lead to mechanical damage.cFor additional information regarding
tires, refer to “Important Tire Safety In-
formation” (US) or “Tire Safety Informa-
tion” (Canada) in the Warranty Informa-
tion Booklet .
Care of wheels
cWash the wheels when washing the vehicle to
maintain their appearance.
cClean the inner side of the wheels when the
wheel is changed or the underside of the ve-
hicle is washed.
cDo not use abrasive cleaners when washing
the wheels.
cInspect wheel rims regularly for dents or cor-
rosion. Such damage may cause loss of pres-
sure or poor seal at the tire bead.
cNISSAN recommends waxing the road wheels
to protect against road salt in areas where it is
used during winter.
Spare tire (TEMPORARY USE ONLY
spare tire)
Your vehicle may be equipped with a TEMPO-
RARY SPARE USE ONLY spare tire.Observe the following precautions if the TEM-
PORARY USE ONLY spare tire must be used,
Otherwise, your vehicle could be damaged or
involved in an accident:
WARNING
cThe spare tire should be used for emer-
gency use only. It should be replaced
with the standard tire at the first oppor-
tunity to avoid possible tire or differen-
tial damage.
cDrive carefully while the TEMPORARY
USE ONLY spare tire is installed. Avoid
sharp turns and abrupt braking while
driving.
cPeriodically check spare tire inflation
pressure. Always keep the pressure of
the TEMPORARY USE ONLY spare tire
at 60 psi (420 kPa, 4.2 bar) .
cWith the TEMPORARY USE ONLY spare
tire installed do not drive the vehicle at
speeds faster than 50 MPH (80 km/h) .
Maintenance and do-it-yourself8-41
ZREVIEW COPY:Ð2003 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
01/15/03Ðarosenma
X

cWhen driving on roads covered with
snow or ice, the TEMPORARY USE
ONLY spare tire should be used on the
front wheels and the original tire used
on the rear wheels (drive wheels) . Use
tire chains only on the two rear original
tires.
cTire tread of the TEMPORARY USE
ONLY spare tire will wear at a faster rate
than the standard tire. Replace the
spare tire as soon as the tread wear
indicators appear.
cDo not use the spare tire on other
vehicles.
cDo not use more than one spare tire at
the same time.
cDo not tow a trailer when the TEMPO-
RARY USE ONLY spare tire is installed.
CAUTION
cWith the spare tire installed the
transfer control lever must be in the 2H
position to prevent the transfer case
and differential gears from being
damaged.cDo not use tire chains on a TEMPO-
RARY USE ONLY spare tire. Tire chains
will not fit properly and may cause dam-
age to the vehicle.
cBecause the TEMPORARY USE ONLY
spare tire is smaller than the original
tire, ground clearance is reduced. To
avoid damage to the vehicle, do not
drive over obstacles. Also, do not drive
the vehicle through an automatic car
wash since it may get caught.
8-42Maintenance and do-it-yourself
ZREVIEW COPY:Ð2003 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
01/15/03Ðarosenma
X

9 Technical and consumer information
Capacities and recommended fuel/lubricants.........9-2
Fuel recommendation...........................9-3
Engine oil and oil filter recommendation...........9-5
Recommended SAE viscosity number............9-6
Air conditioner system refrigerant and
lubricant recommendations......................9-6
Specifications.....................................9-7
Engine........................................9-7
Wheels and tires...............................9-8
Dimensions and weights........................9-9
When traveling or registering your vehicle in
another country..................................9-10
Vehicle identification..............................9-10
Vehicle identification number (VIN) plate.........9-10
Vehicle identification number (chassis
number)......................................9-10
Engine serial number...........................9-11
F.M.V.S.S. certification label....................9-11
Emission control information label...............9-12
Tire placard...................................9-12
Air conditioner specification label................9-12
Installing front license plate........................9-13
Vehicle loading information........................9-13Terms........................................9-13
Determining vehicle load capacity...............9-14
Securing the load..............................9-14
Loading tips..................................9-14
Truck-camper loading information..................9-15
Crew Cab Models.............................9-15
King Cab models..............................9-15
Special Body vehicles..........................9-15
Location for center of gravity....................9-15
Payload weight capacity........................9-16
Measurement of weights.......................9-18
Towing a trailer...................................9-18
Maximum load limits...........................9-18
Towing load/specification chart.................9-20
Towing safety.................................9-21
Uniform tire quality grading........................9-23
Emission control system warranty..................9-24
Reporting safety defects (US only).................9-24
Readiness for inspection/maintenance (I/M) test.....9-24
Dynamometer testing for Inspection/
Maintenance (I/M) test (US only)................9-25
Owner’s manual/service manual order information....9-26
In the event of a collision.......................9-27
ZREVIEW COPY:Ð2003 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
01/15/03Ðarosenma
X

The following are approximate capacities. The actual refill capacities may be a little different. When refilling, follow the procedure
described in the “Maintenance and do-it-yourself” section to determine the proper refill capacity.
Capacity (Approximate)
US measure Imp measure Liter Recommended Fluids and Lubricants
Fuel
KA24DE (4cylinder) 15–7/8 gal 13–1/4 gal 60.2 Unleaded gasoline with an octane rating of at least 87 AKI (RON 91)*1
VG33E (6 cylinder) 19–3/8 gal 16–1/8 gal 73.4
VG33ER (6 cylinder with supercharger) 19–3/8 gal 16–1/8 gal 73.4 Unleaded gasoline with an octane rating of at least 91 AKI (RON 96)*1
Engine oil
Drain and Refill
KA24DE With oil filter 3–3/4 qt 3–1/8 qt 3.5 • API Certification Mark *2
• API grade SG/SH, Energy ConservingI&IIorAPIgrade SJ or SL, Energy Conserving *2
• ILSAC grade GF-1, GF-II & GF-III Without oil filter 3–1/2 qt 2–7/8 qt 3.3
VG33E/VG33ER With oil filter 3–1/2 qt 2–7/8 qt 3.3
Without oil filter 3–1/8 qt 2–5/8 qt 3.0
Cooling system (with heater and reservoir tank)
KA24DE M/T 4X2 7–3/4 qt 6–3/8 qt 7.3
50% Genuine NISSAN Anti-freeze coolant or equivalent
50% Demineralized or distilled water
VG33E/VG33ER A/T & M/T 11–5/8 qt 9–5/8 qt 10.95
Manual transmission gear oil
KA24DE 4X2 4–1/4 pt 3–1/2 pt 2.0
API GL-4, Viscosity SAE 75W-85 VG33E/VG33ER 4X2 5–7/8 pt 4–7/8 pt 2.8
4X4 10–3/4 pt 9 pt 5.1
Final drive gear oil
KA24DE 4X2 M/T 2–3/4 pt 2–1/4 pt 1.3
API GL-5, Viscosity SAE 80W-90*1 or 80W-90 LS*1for Limited Slip Differential (LSD) appli-
cations*2 VG33E/VG33ER 4X4 Front 3–3/4 pt 3–1/8 pt 1.75
Rear 5–7/8 pt 4–7/8 pt 2.8
Transfer fluid 2–3/8 qt 2 qt 2.2 API GL-4, Viscosity SAE 75W-85 or 75W-90 or NISSAN Matic ‘D’ (Continental U.S. and
Alaska) or Canada NISSAN Automatic Transmission Fluid.*3
Automatic transmission fluid
Refill to the proper level according to the instructions
in the “Maintenance and do-it-yourself” section.NISSAN Matic ‘D’ (Continental U.S. and Alaska) or Canada NISSAN Automatic Transmission
Fluid.*3
Power steering fluid (PSF)Genuine NISSAN PSF or equivalent.*6
Brake and clutch fluidGenuine NISSAN Super Heavy Duty Brake Fluid*4 or equivalent
Multi-purpose grease — — — NLGI No. 2 (Lithium Complex)
Air conditioning system refrigerant lb (kg) 1.32 – 1.54 (0.60 – 0.70) HFC-134a (R-134a)*5
Air conditioning system lubricant 6.8 oz 7.0 oz 200 ml NISSAN A/C System Oil Type R or equivalent*5
Windshield washer fluid — — — Genuine NISSAN windshield washer concentrate cleaner & anti-freeze
*1: For hot climates, viscosity SAE 90 is suitable for ambient temperatures above 0° C (32° F) .
*2: Contact your NISSAN dealer for a list of approved oils.
*3: Dexron™ III/Mercon™ or equivalent may also be used. Outside the Continental United States and Alaska contact an authorized NISSAN dealership formore information regarding suitable fluids, including recommended brand(s) of
Dexron™ III/Mercon™ Automatic Transmission Fluid.
*4: Available in mainland USA through your authorized NISSAN dealer.
*5: For further details, see “Air conditioner specification label.”
*6: Genuine NISSAN PSF, Canada NISSAN Automatic Transmission Fluid, Dexron™ III/Mercon™, or equivalent ATF may also be used.
CAPACITIES AND RECOMMENDED
FUEL/LUBRICANTS
9-2Technical and consumer information
ZREVIEW COPY:Ð2003 Truck/Frontier(d22)
Owners Manual(owners)ÐUSA English(nna)
01/17/03Ðtmchalpi
X