maintenance INFINITI QX80 2021 Owner's Manual


2021 OWNER’S MANUAL
AND MAINTENANCE INFORMATION
For your safety, read carefully and keep in this vehicle.

The information contained within this supplement revises or adds to the
“MAINTENANCE SCHEDULES” section in the “Maintenance and schedules”
section in the 2021 INFINITI QX80 Owner’s manual.
Read carefully and keep in the vehicle.
Printing: September 2020
Publication No. SU21E0 0Z62U0
OWNER’S MANUAL SUPPLEMENT

15,000 miles/(24,000 km)/
12 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect differential gear oil
• Inspect propeller shaft (4WD models)
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
30,000 miles/(48,000 km)/
24 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect differential gear oil
• Inspect propeller shaft (4WD models)
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine oil and filter
• Replace engine air filter (1)
• Replace brake fluid
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.
30,000 miles/(48,000 km)/
36 months
Standard maintenance:
Not Applicable. Proceed to next interval.
Severe maintenance:
• Inspect brake pads and rotors
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect propeller shaft (4WD models)
• Inspect drive shaft boots (4WD models)
• Inspect exhaust system
• Replace engine oil and filter
• Replace brake fluid

45,000 miles/(72,000 km)/
36 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect propeller shaft (4WD models)
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Replace Intelligent Key battery
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
60,000 miles/(96,000 km)/
48 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect propeller shaft (4WD models)
• Inspect axle and suspension parts
• Inspect steering gear and linkage
• Inspect differential gear oil
• Inspect drive shaft boots (4WD models)
• Inspect transfer case oil (4WD models)
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.

75,000 miles/(120,000 km)/
60 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect propeller shaft (4WD models)
• Inspect differential gear oil
• Inspect drive shaft boots (4WD models)
• Inspect transfer case oil (4WD models)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
90,000 miles/(144,000 km)/
72 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect propeller shaft (4WD models)
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Replace Intelligent Key battery
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.

105,000 miles/(168,000 km)/
84 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect propeller shaft (4WD models)
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine coolant (1)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Replace spark plugs (2)
• Lubricate propeller shaft grease (4WD
models)
• Perform tire rotation
Severe maintenance:
Not Applicable. Proceed to next interval.
(1) First replacement interval is 105,000
miles (168,000 km) or 84 months. After first
replacement, replace every 75,000 miles
(120,000 km) or 60 months.
(2) Replace spark plug when the gap exceeds
0.053 in (1.35 mm) even if within specified
replacement mileage.
120,000 miles/(192,000 km)/
96 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect propeller shaft (4WD models)
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
•
Lubricate propeller shaft grease (4WD models)
Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.

This manual was prepared to help you
understand the operation and maintenance
of your vehicle so that you may enjoy many
miles (kilometers) of driving pleasure. Please
read through this manual before operating
your vehicle.
A separate Warranty Information Booklet
is included in your Owner’s literature port-
folio. Always carry it with you when you
take your vehicle to an INFINITI retailer.
The Warranty Information Booklet con-
tents provide complete information about
all warranties covering this vehicle, the
requirements to keep the warranties in
effect as well as the INFINITI Roadside
Assistance program.
Additionally, a separate Customer Care and
Lemon Law Information Booklet will ex-
plain how to resolve any concerns you may
have with your vehicle, as well as clarify
your rights under your state’s lemon law.
In addition to factory installed options, your
vehicle may also be equipped with additional
accessories installed by INFINITI or by your
INFINITI retailer prior to delivery. It is
important that you familiarize yourself with
all disclosures, warnings, cautions and in-
structions concerning proper use of such
accessories prior to operating the vehicle
and/or accessory. It is recommended you
visit an INFINITI retailer for details concern-
ing the particular accessories with whichyour vehicle is equipped.
READ FIRST — THEN DRIVE
SAFELY
Before driving your vehicle, read your Own-
er’s Manual carefully. This will ensure famil-
iarity with controls and maintenance
requirements, assisting you in the safe
operation of your vehicle.
WARNING
IMPORTANT SAFETY INFORMATION
REMINDERS!
Follow these important driving rules to
help ensure a safe and comfortable trip
for you and your passengers!
.
NEVER drive under the influence of
alcohol or drugs.
. ALWAYS observe posted speed lim-
its and never drive too fast for
conditions.
. ALWAYS give your full attention to
driving and avoid using vehicle fea-
tures or taking other actions that
could distract you.
. ALWAYS use your seat belts and
appropriate child restraint systems.
Pre-teen children should be seated in the rear seat.
. ALWAYS provide information about
the proper use of vehicle safety
features to all occupants of the
vehicle.
. ALWAYS review this Owner’s Man-
ual for important safety information.
ON-PAVEMENT AND OFF-
ROAD DRIVING
This vehicle will handle and maneuver
differently from an ordinary passenger car
because it has a higher center of gravity
for off-road use. As with other vehicles
with features of this type, failure to
operate this vehicle correctly may result in
loss of control or an accident. Be sure to
read “On-pavement and off-road driving
precautions”, “Avoiding collision and roll-
over” and “Driving safety precautions” in
the “5. Starting and driving” section of this
manual.
Foreword

Illustrated table of contents0
Safety — seats, seat belts and supplemental restraint
system1
Instruments and controls
Pre-driving checks and adjustments
Monitor, climate, audio, phone and voice recognition
systems
Starting and driving
In case of emergency
Appearance and care
Do-it-yourself
Maintenance and schedules
Technical and consumer information
2
3
4
5
6
7
8
9
10
Table of
Contents
11Index

1 Safety — seats, seat belts and supplementalrestraint system
Seats ........................................................................\
.............. 1-3
Front seats .................................................................... 1-4
2nd row seats ............................................................... 1-5
3rd row seats ............................................................... 1-8
Armrest (if so equipped) .......................................... 1-10
Flexible seating .......................................................... 1-10
Head restraints/headrests ........................................... 1-13 Adjustable head
restraint/headrest components ............................ 1-14
Non-adjustable head
restraint/headrest components ............................ 1-15
Remove ........................................................................\
1-15
Install ........................................................................\
.... 1-16
Adjust ........................................................................\
... 1-16
Front-seat Active Head Restraint ........................ 1-17
Seat belts ........................................................................\
.. 1-18
Precautions on seat belt usage ............................. 1-18
Pregnant women ....................................................... 1-21
Injured persons ........................................................... 1-21
Pre-crash seat belts with comfort function
(if so equipped for front seats) ............................. 1-21
Three-point type seat belt ...................................... 1-21
Seat belt extenders ................................................... 1-28
Seat belt maintenance ............................................. 1-28 Child safety ...................................................................... 1-29
Infants ........................................................................\
1-30
Small children ........................................................... 1-30
Larger children ......................................................... 1-30
Child restraints ................................................................ 1-31 Precautions on child restraints ............................ 1-31
Lower Anchors and Tethers for CHildren
System (LATCH) ...................................................... 1-33
Top tether strap child restraint ........................... 1-36
Rear-facing child restraint installation
using LATCH ............................................................ 1-37
Rear-facing child restraint installation using
the seat belts ............................................................ 1-39
Forward-facing child restraint installation
using LATCH ............................................................ 1-41
Forward-facing child restraint installation
using the seat belts ................................................ 1-44
Booster seats ........................................................... 1-48
Supplemental restraint system .................................. 1-52
Precautions on supplemental
restraint system ....................................................... 1-52
INFINITI Advanced Air Bag System
(front seats) .............................................................. 1-58
Front seat-mounted side-impact supplemental
air bag and roof-mounted curtain side-impact
and rollover supplemental air bag systems ..... 1-65

1-28Safety — seats, seat belts and supplemental restraint system
WARNING
.After adjustment, release the adjust-
ment button and try to move the
shoulder belt anchor up and down to
make sure it is securely fixed in
position.
. The shoulder belt anchor height
should be adjusted to the position
best for you. Failure to do so may
reduce the effectiveness 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 that
is compatible with the installed seat belts is
available that can be purchased. The ex-
tender adds approximately 8 in (200 mm) of
length and may be used for either the driver
or front passenger seating position. It is
recommended you visit an INFINITI retailer
for assistance with purchasing an extender if
an extender is required.
WARNING
.It is recommended that only INFINITI
seat belt extenders, made by the
same company which made the origi-
nal equipment seat belts, be used
with the INFINITI seat belts.
. Adults 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.
. Never use seat belt extenders to
install child restraints. If the child
restraint is not secured properly, the
child could be seriously injured or
killed in a collision or a sudden stop.
SEAT BELT MAINTENANCE
.To clean the seat belt webbing, apply a
mild soap solution or any solution re-
commended for cleaning upholstery or
carpets. 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.
. If dirt builds up in the shoulder belt guide
of the seat belt anchors, the seat belts
may retract slowly. Wipe the shoulder belt guide with a clean, dry cloth.
. Periodically 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 da-
mage on the webbing is found, the entire
seat belt assembly should be replaced.