2021 NISSAN FRONTIER air suspension

seat, contrary to the instructions in this
manual. Always be sure that you and all
vehicle occupants are seated and re-
strained properly.
Using the front passenger air bag status
light, you can monitor when the front pas-
senger air bag is automatically turned OFF
with the seat occupied. The light will not
illuminate when the front passenger seat is
unoccupied.
If an adult occupant is in the seat but the
front passenger air bag status light is illu-
minated (indicating that the air bag is OFF),
it could be that the person is a small adult,
or is not sitting on the seat properly or not
using the seat belt properly.
If a child restraint must be used in the front
seat, the front passenger air bag status light
may or may not be illuminated, depending
on the size of the child and the type of child
restraint being used. If the air bag status light
is not illuminated (indicating that the air bag
might inflate in a crash), it could be that the
child restraint or seat belt is not being used
properly. Make sure that the child restraint is
installed properly, the seat belt is used prop-
erly and the occupant is positioned properly.
If the air bag status light is not illuminated,
reposition the occupant or child restraint in a
rear seat.
If the front passenger air bag status light
will not illuminate even though you believe
that the child restraint, the seat belts and
the occupant are properly positioned, the
system may be sensing an unoccupied
seat (in which case the air bag is OFF). A
NISSAN dealer can check that the system is
OFF by using a special tool. However, until
you have confirmed with a dealer that your
air bag is working properly, reposition the
occupant or child restraint in a rear seat.
The NISSAN Advanced Air Bag System and
front passenger air bag status light will
take a few seconds to register a change in
the passenger seat status. For example, if a
large adult who is sitting in the front pas-
senger seat exits the vehicle, the front pas-
senger air bag status light will go from OFF
to ON for a few seconds and then to OFF.
This is normal system operation and does
not indicate a malfunction.
If a malfunction occurs in the front passen-
ger air bag system, the supplemental air
bag warning light
, located in the me-
ter and gauges area of the instrument
panel, will blink. Have the system checked. It
is recommended that you visit a NISSAN
dealer for this service. Other supplemental front-impact air
bag precautions
WARNING
• Do not place any objects on the
steering wheel pad or on the instru-
ment panel. Also, do not place any
objects between any occupant and
the steering wheel or instrument
panel. Such objects may become
dangerous projectiles and cause in-
jury if the front air bags inflate.
• Immediately af ter inflation, several
front air bag system components will
be hot. Do not touch them; you may
severely burn yourself.
• 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 dam-
age to the supplemental air bag
system.
• Do not make unauthorized changes
to your vehicle's electrical system,
suspension system or front end
structure. This could affect proper
operation of the front air bag system.
Safety-Seats, seat belts and supplemental restraint system1-81

inflate if the forces in another type of colli-
sion are similar to those of a higher severity
impact. They are designed to inflate on the
side where the vehicle is impacted. They
may not inflate in certain side collisions.
Curtain air bags are also designed to inflate in
certain types of rollover collisions or near roll-
overs. As a result, certain vehicle movements
(for example, during severe off-roading) may
cause the curtain air bags to inflate.
Vehicle damage (or lack of it) is not always
an indication of proper side air bag and
curtain air bag operation.
When the side air bags and curtain air bags
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.
Side air bags, along with the use of seat
belts, help to cushion the impact force on
the chest and pelvic area of the front occu-
pants. Curtain air bags help to cushion the
impact force to the head of occupants in
the front and rear outboard seating posi-
tions. They can help save lives and reduce
serious injuries. However, an inflating sideair bag or curtain air bag may cause abra-
sions or other injuries. Side air bags and
curtain air bags do not provide restraint to
the lower body.
The seat belts should be correctly worn
and the driver and passenger seated up-
right as far as practical away from the side
air bag. Rear seat passengers should be
seated as far away as practical from the
door finishers and side roof rails. The side
air bags and curtain air bags inflate quickly
in order to help protect the occupants. Be-
cause of this, the force of the side air bag
and curtain air bag inflating can increase
the risk of injury if the occupant is too close
to, or is against, these air bag modules dur-
ing inflation. The side air bag will deflate
quickly af ter the collision is over.
The curtain air bags will remain inflated for
a short time.
The side air bags and curtain air bags
operate only when the ignition switch is
in the ON or START position.
Af ter placing the ignition switch in the
ON position, the supplemental air bag
warning light illuminates. The supple-
mental air bag warning light will turn off
af ter about 7 seconds if the system is
operational.
WARNING
• Do not place any objects near the
seatback of the front seats. Also, do
not place any objects (an umbrella,
bag, etc.) between the front door fin-
isher and the front seat. Such objects
may become dangerous projectiles
and cause injury if a side air bag
inflates.
• Right af ter inflation, several side air
bag and curtain air bag system com-
ponents will be hot. Do not touch
them; you may severely burn
yourself.
• No unauthorized changes should be
made to any components or wiring
of the side air bag and curtain air bag
systems. This is to prevent damage
to or accidental inflation of the side
air bag and curtain air bag systems.
• Do not make unauthorized changes
to your vehicle's electrical system,
suspension system or side panel.
This could affect proper operation of
the curtain air bag systems.
Safety-Seats, seat belts and supplemental restraint system1-83

STANDARD MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, L = LubricateMAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. Miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
7. 5
(12) 6 15
(24) 12 22.5
(36) 18 30
(48) 24 37.5
(60) 30 45
(72) 36 52.5
(84) 42 60
(96) 48 67.5
(108) 54 75
(120) 60 82.5
(132) 66 90
(144) 72 97.5
(156) 78 105
(168) 84 112.5
(180) 90 120
(192) 96
Air cleaner filter NOTE (1) R R R R
Automatic transmission fluid NOTE (2)(3) I I I I I I I I
Brake fluid RR RR
Brake lines and cables I I I I I I I I
Brake pads and rotors III I I I II
Drive belts NOTE (4) I* I* I* I* I*
Engine coolant* NOTE (5)(6)
Engine oil & oil filter  RRRRRRR RRRRRRRRR
EVAP vapor lines & fuel lines I* I* I* I*
Exhaust system II II
Fuel filter NOTE (7)
In-cabin microfilter R R R R R R R R
Intake & exhaust valve clearance NOTE (8)
Intelligent Key battery I R R R R
Propeller shaf t & drive shaf t boots (4WD models) III I I I II
Propeller shaf t grease (4WD models) L L L L L L L L
Spark plugs NOTE (9) Replace every 105,000 miles (168,000 km)
Steering gear and linkage, axle & suspension parts II II
Tire rotation NOTE (10)
Transfer fluid & differential gear oil NOTE (11) I I I I I I I I
9-8Maintenance and schedules