1999 NISSAN FRONTIER change wheel

can help save lives and reduce serious inju-
ries. However, an inflating supplemental air
bag may cause facial abrasions or other inju-
ries. Supplemental air bags do not provide
restraint to the lower body.
Seat belts should be correctly worn and the
driver and passenger seated upright as far
as practical away from the steering wheel or
instrument panel. Since the supplemental
air bags inflate quickly in order to help
protect the front occupants, the force of the
supplemental air bag inflating can increase
the risk of injury if the occupant is too close
to or against the supplemental air bag mod-
ule during inflation.
The supplemental air bags deflate quickly
after a collision.
The supplemental air bags operate only
when the ignition switch is in the ON or
START position.
WARNING
IDo not attach any objects to the
steering wheel pad or on the instru-
ment panel. Also, do not place any
objects between any occupant and
the steering wheel or on the instru-
ment panel. Such objects maybecome dangerous projectiles and
cause injury if the supplemental air
bag inflates.
IRight after inflation, several supple-
mental air bag system components
will be hot. Do not touch them; you
may severely burn yourself.
I
No unauthorized changes should be
made to any components or wiring of
the supplemental air bag system. This
is to prevent accidental inflation of
the supplemental air bag or damage
to the supplemental air bag system.
IDo not make unauthorized changes to
your vehicle's electrical system, sus-
pension system or front end structure.
This could affect proper operation of
the supplemental air bag system.
ITampering with the supplemental air
bag system may result in serious per-
sonal injury. Tampering includes
changes to the steering wheel and the
instrument panel assembly by placing
material over the steering wheel pad,
above the dashboard, or by installing
additional trim material around the
supplemental air bag system.IWork around and on the supplemental
air bag system should be done by an
authorized NISSAN dealer. Installa-
tion of electrical equipment should
also be done by an authorized NIS-
SAN dealer. The yellow SRS wiring-
should not be modified or discon-
nected. Unauthorized electrical test
equipment and probing devices
should not be used on the supple-
mental air bag system.
ISRS wiring harnesses are covered
with yellow insulation either just be-
fore the harness connectors or over
the complete harness for easy iden-
tification.
When selling your vehicle, we request that
you inform the buyer about the supplemental
air bag system and guide the buyer to the
appropriate sections in this owner's manual.
Seats, restraints and supplemental air bag systems1-13
ZX

Shifting with manual transmission
To change gears, fully depress the clutch
pedal, then move the gearshift lever. After
shifting, slowly release the clutch.
You cannot shift directly from 5th gear into R
(Reverse). First shift into the N (Neutral)
position, then into R (Reverse).
If it is difficult to move the shift lever into R
(Reverse) or 1st, shift into N (Neutral), then
release the clutch pedal. Depress the clutch
pedal and shift into R (Reverse) or 1st
again.
If your vehicle is equipped with 4-wheeldrive, see ``
Transfer case shifting pro-
cedures for four-wheel drive vehicles'' later
in this section.
Suggested up-shift speeds
The folllowing table provides suggested speed
ranges for shifting into a higher gear. These
suggestions relate to fuel economy and vehicle
performance. Actual shift ranges should be
adjusted for specific road conditions, weather
conditions and individual driving habits.
ITwo-wheel drive models and four-wheel
drive models (2H and 4H position):
Shift from MPH (km/h)
1st to 2nd 15 (24)
2nd to 3rd 25 (40)
3rd to 4th 40 (64)
4th to 5th 45 (72)
I4-wheel drive model (4L posi-
tion):
Shift from MPH (km/h)
1st to 2nd 8 (13)
2nd to 3rd 12 (19)
3rd to 4th 20 (32)
4th to 5th 22 (35)
Suggested maximum speed in each
gear
Downshift to a lower gear if the engine is not
running smoothly, or if you need to accelerate.
Do not exceed the maximum suggested speed
(shown below) in any gear. For level road
driving, use the highest gear suggested for that
speed. Always observe posted speed limits,
and drive according to the road conditions,
which will ensure safe operation.
Allowable maximum speed in each gear:
2-wheel drive models MPH (km/h)
1st 30 (48)
2nd 55 (88)
3rd 80 (129)
4th & 5th þ (þ)
4-wheel drive models MPH (km/h)
2H/4H position
1st 25 (40)
2nd 43 (69)
3rd 68 (109)
4th & 5th þ (þ)
4L position
1st 12 (19)
2nd 22 (35)
3rd 30 (48)
4th & 5th þ (þ)
SD1017M
Starting and driving5-13
ZX

TO SHIFT TRANSFER
CASE:SHIFT PROCEDURE FOR MANUAL-LOCK FREE-RUNNING HUBS
From 2H to 4H1. Stop the vehicle.
2. Set both free-running hubs in the LOCK position.
3. Move the transfer lever to 4H. It is not necessary to depress the clutch pedal.
From 4H to 2HMove the transfer lever to 2H. This can be done at any speed, and it is not necessary to depress the clutch pedal. Perform
this operation when driving straight.
NOTE:
For two-wheel drive operation, set the free-running hubs in the FREE position. Disengaging the MANUAL LOCK
hubs will allow for better fuel economy, quieter ride and less component wear.
From 4H to 4L or 4L to
4H1. Stop the vehicle.
2. Depress the clutch pedal, or place the selector lever in the P (Park) position.
3. Depress the transfer lever and move it to the desired 4L or 4H position. Change gears quickly and smoothly.
From 2H to 4L1. Stop the vehicle.
2. Set free-running hubs in the LOCK position.
3. Depress the clutch pedal, or place the selector lever in the P (Park) position.
4. Depress the transfer lever and move it to 4L. Change gears quickly and smoothly.
From 4L to 2H1. Stop the vehicle.
2. Depress the clutch pedal, or place the selector lever in the P (Park) position.
3. Depress the transfer lever and move it to 2H. Chnage gears quickly and smoothly.
NOTE:
Follow the NOTE shown in shifting from 4H to 2H.
Starting and driving5-23
ZX

CAUTION
Always use tires of the same size,
brand, construction (bias, bias-belted
or radial), and tread pattern on all four
wheels. A spare tire of the same size,
brand, construction and tread pattern
must also be used. Failure to do so may
result in a circumference difference be-
tween tires on the front and rear axles
which will cause excessive tire wear
and may damage the transmission,
transfer case and differential gears.
If excessive tire wear is found, it is recom-
mended 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 an
authorized NISSAN dealer.
Snow tires
If you install snow tires, they must also be
the same size, brand, construction and
tread pattern on all four wheels.
Tire inflation pressure
Periodically check the pressure in all tires,
including the spare, with a gauge. Adjust to
the specified pressure if necessary. Tire
pressures are shown on the tire placard
affixed to the glove box.
Tire chain
Tire chains must be installed only on the
rear wheels and not on the front wheels.
Do not drive with tire chains on paved roads
which are clear of snow. Driving with chains
in such conditions can cause damage to the
various mechanisms of the vehicle due to
some overstress. When driving on clear
paved roads, be sure to change to 2WD.
TIRES OF FOUR-WHEEL
DRIVE
5-26Starting and driving
ZX

If you have a flat tire, follow the instructions
below:
Stopping the vehicle
1. Safely move the vehicle off the road and
away from traffic.
2. Turn on the hazard warning flashers.
3. Park on a level surface and apply the
parking brake. Shift the manual transmis-
sion into R (Reverse), or the automatic
transmission into P (Park).
WARNING
I
The transfer control lever
must be in the 2H, 4H or 4L position.
I
Never place the transfer control lever
in the N (Neutral) position. Other-
wise, the vehicle could roll unexpect-
edly even if the manual transmission
is in gear or the automatic transmis-
sion is in the P (Park) position. This
could result in serious personal in-
jury or property damage.
4. Turn off the engine.
5. Raise the hood to warn other traffic and
to signal professional road assistancepersonnel that you require assistance.
6. Have all passengers get out of the ve-
hicle and stand in a safe place away from
traffic and clear of the vehicle.
WARNING
I
Make sure that the parking brake is
securely applied and the manual
transmission is shifted into R (Re-
verse), or the automatic transmis-
sion into P (Park).
I
Never change tires when the vehicle
is on a slope, ice or a slippery area.
This is hazardous.
I
Never change tires if oncoming traf-
fic is close to your vehicle. Wait for
professional road assistance.
Blocking wheels
Place suitable blocks at both the front and
back of the wheel diagonally opposite the
flat tire to prevent the vehicle from rolling
when it is jacked up.
WARNING
Be sure to block the wheel as the ve-
hicle may move and could cause per-
sonal injury.
MCE0001
FLAT TIRE
6-2In case of emergency
ZX

Jacking up the vehicle and remov-
ing the wheel
Always refer to the proper illustrations for
the correct placement and jack-up points for
your specific vehicle model and jack type.
WARNING
INever get under the vehicle while it
is supported only by the jack.
IUse the jack provided with your ve-
hicle. Do not use the jack provided
with your vehicle on other vehicles.
IThe jack is designed only for lifting
your vehicle during a tire change.
IUse the correct jack up points; never
use any other part of the vehicle for
jack support.INever jack up the vehicle more than
necessary.
INever use blocks on or under the
jack.
IDo not allow passengers to stay in
the vehicle while it is on the jack.
INever run the engine with the wheels
off the ground. It may cause the
vehicle to move. This is especially
true for vehicles with limited slip
differential carriers.
ACE1028
PANTOGRAPH TYPE JACK
In case of emergency6-5
ZX

Self-adjusting brakes
Your vehicle is equipped with self-adjusting
brakes.
The front disc-type brakes self-adjust every
time the brake pedal is applied. The rear
drum-type brakes on two-wheel drive trucks
self-adjust every time the parking brake is
applied. The rear drum-type brakes on four-
wheel drive trucks self-adjust every time the
brake pedal is applied. If the brake pedal
goes down farther than normal, it may be
due to a lack of adjustment of the rear drum
brakes. Apply the parking brake several
times.
WARNING
If the brake pedal height does not re-
turn to normal, see an authorized NIS-
SAN dealer and have it checked.
Brake pad wear indicators
The disc brake pads on your vehicle have
audible wear indicators. When a brake pad
requires replacement, it will make a high
pitched scraping or screeching sound when
the vehicle is in motion whether or not the
brake pedal is depressed. Have the brakeschecked as soon as possible if the wear
indicator sound is heard.
Under some driving or climate conditions,
occasional brake squeak, squeal or other
noise may be heard. Occasional brake
noise during light to moderate stops is nor-
mal and does not affect the function or
performance of the brake system.
The rear drum brakes (if so equipped) do
not have audible wear indicators. Should
you ever hear an unusually loud noise from
the rear drum brakes, have them inspected
as soon as possible by an authorized NIS-
SAN dealer.
Proper brake inspection intervals should
be followed.For more information regard-
ing brake inspections, see the appropriate
maintenance schedule information in the
``Maintenance Schedule'' section of this
manual.Check the brake booster function with the
following steps:
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
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. Keeping the pedal depressed for
about 30 seconds, the pedal height
should not change.
4. Run the engine for one minute without
depressing the brake pedal, then turn it
off. Depress the brake pedal several
times. The pedal travel distance will de-
crease gradually with each depression
as the vacuum is released from the
booster.
If the brakes do not operate properly, have
the brakes checked by an authorized
NISSAN dealer.
BRAKE BOOSTER
Do-it-yourself8-25
ZX

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 in
snow and ice will be substantially reduced.
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'' 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 the original equipment tires. If you do not,
it can adversely affect the safety and han-
dling of your vehicle.
Generally, snow tires will have lower speed
ratings than factory equipped tires and may
not match the potential maximum vehicle
speed. Never exceed the maximum speed
rating of the tire.
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.
Four-wheel drive model
If you install snow tires, they must be the
same size, brand, construction and tread
pattern on all four wheels.
CAUTION
ONLY use spare tires specified for each
four-wheel drive model.
Tire chains
Use of tire chains may be prohibited accord-
ing 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 sug-
gestions.Use only SAE class ``S'' chains.
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 besecured or removed to prevent the possibil-
ity of whipping action damage to the fenders
or undercarriage. If possible, avoid fully
loading your vehicle when using tire chains.
In addition, drive at a reduced speed. Oth-
erwise, your vehicle may be damaged
and/or vehicle handling and performance
may be adversely affected.
Never install tire chains on a TEMPORARY
USE ONLY spare tire.
Tire chains must be installed only on the
rear wheels and not on the front wheels.
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. When driv-
ing on clear paved roads, be sure to change
to 2WD.
Do-it-yourself
8-33
ZX