heat INFINITI QX80 2020 Service Manual

.E-15 fuel contains more than 10%
oxygenate. E-15 fuel will adversely
affect the emission control devices and
systems of the vehicle and should not be
used. Damage caused by such fuel is not
covered by the INFINITI new vehicle
limited warranty.
. If a methanol blend is used, it should
contain no more than 5% methanol
(methyl alcohol, wood alcohol). It should
also contain a suitable amount of ap-
propriate cosolvents and corrosion in-
hibitors. If not properly formulated with
appropriate cosolvents and corrosion
inhibitors, such methanol blends may
cause fuel system damage and/or vehi-
cle performance problems. At this time,
sufficient data is not available to ensure
that all methanol blends are suitable for
use in INFINITI vehicles.
If any undesirable driveability problems such
as engine stalling or hard hot starting are
experienced after using oxygenate-blend
fuels, immediately change to a non-oxyge-
nate fuel or a fuel with a low blend of MTBE.
Take care not to spill gasoline during
refueling. Gasoline containing oxygenates
can cause paint damage.E-15 fuel
E-15 fuel is a mixture of approximately 15%
fuel ethanol and 85% unleaded gasoline. E-
15 can only be used in vehicles designed to
run on E-15 fuel. Do not use E-15 in your
vehicle. U.S. government regulations require
fuel ethanol dispensing pumps to be identi-
fied with small, square, orange and black
label with the common abbreviation or the
appropriate percentage for that region.
E-85 fuel
E-85 fuel is a mixture of approximately 85%
fuel ethanol and 15% unleaded gasoline. E-
85 can only be used in a Flexible Fuel Vehicle
(FFV). Do not use E-85 fuel in your vehicle.
U.S. government regulations require fuel
ethanol dispensing pumps to be identified
by a small, square, orange and black label
with the common abbreviation or the appro-
priate percentage for that region.
Fuel containing MMT
MMT, or methylcyclopentadienyl manga-
nese tricarbonyl, is an octane boosting
additive. INFINITI does not recommend the
use of fuel containing MMT. Such fuel may
adversely affect vehicle performance, in-
cluding the emissions control system. Note
that while some fuel pumps label MMT
content, not all do, so you may have to consult your gasoline retailer for more de-
tails.
Aftermarket fuel additives
INFINITI does not recommend the use of any
aftermarket fuel additives (Example: fuel
injector cleaner, octane booster, intake valve
deposit removers, etc.) which are sold com-
mercially. Many of these additives intended
for gum, varnish or deposit removal may
contain active solvent or similar ingredients
that can be harmful to the fuel system and
engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended above can
cause persistent, heavy spark knock. (Spark
knock is a metallic rapping noise.) If severe,
this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the stated octane
rating, or if you hear steady spark knock
while holding a steady speed on level roads,
it is recommended you have an INFINITI
retailer correct the condition. Failure to
correct the condition is misuse of the
vehicle, for which INFINITI is not respon-
sible.
Incorrect ignition timing will result in knock-
ing, after-run or overheating. This in turn
may cause excessive fuel consumption or
Technical and consumer information10-5

roads can affect engine performance and
cause overheating. The transmission high
fluid temperature and engine protection
mode, which helps reduce the chance of
transmission and engine damage, could
activate and automatically decrease engine
power. Vehicle speed may decrease under
high load. Plan your trip carefully to account
for trailer and vehicle load, weather and road
conditions.
WARNING
Overheating can result in reduced engine
power and vehicle speed. The reduced
speed may be lower than other traffic,
which could increase the chance of a
collision. Be especially careful when
driving. If the vehicle cannot maintain a
safe driving speed, pull to the side of the
road in a safe area. Allow the engine to
cool and return to normal operation. See
“If your vehicle overheats” (P.6-14).
CAUTION
Vehicle damage resulting from improper
towing procedures is not covered by
INFINITI warranties.
STI0542
Tongue load
When using a weight carrying or a weight
distributing hitch, keep the tongue load
between 10 to 15% of the total trailer load
or use the trailer tongue load specified by the
trailer manufacturer. The tongue load must
be within the maximum tongue load limits
shown in the following “Towing Load/
Specification” chart. If the tongue load
becomes excessive, rearrange cargo to allow
for proper tongue load.
TI1012M
MAXIMUM GROSS VEHICLE
WEIGHT (GVW)/MAXIMUM
GROSS AXLE WEIGHT (GAW)
The GVW of the towing vehicle must not
exceed the Gross Vehicle Weight Rating
(GVWR) shown on the F.M.V.S.S./C.M.V.S.
S. certification label. The GVW equals the
combined weight of the unloaded vehicle,
passengers, luggage, hitch, trailer tongue
load and any other optional equipment. In
addition, front or rear GAW must not exceed
the Gross Axle Weight Rating (GAWR)
shown on the F.M.V.S.S./C.M.V.S.S. certifi-
cation label.
Towing capacities are calculated assuming a
Technical and consumer information10-19

10-28Technical and consumer information
4. Release the parking brake.
5. Drive slowly until the vehicle and trailerare clear from the blocks.
6. Apply and hold the brake pedal.
7. Have someone retrieve and store the blocks.
. While going downhill, the weight of the
trailer pushing on the tow vehicle may
decrease overall stability. Therefore, to
maintain adequate control, reduce your
speed and shift to a lower gear. Avoid
long or repeated use of the brakes when
descending a hill, as this reduces their
effectiveness and could cause overheat-
ing. Shifting to a lower gear instead
provides “engine braking” and reduces
the need to brake as frequently.
. If the engine coolant temperature rises to
a high temperature, see “If your vehicle
overheats” (P.6-14).
. Trailer towing requires more fuel than
normal circumstances.
. Avoid towing a trailer for your vehicle’s
first 500 miles (800 km).
. Have your vehicle serviced more often
than at intervals specified in the recom-
mended maintenance schedule shown in
the “9. Maintenance and schedules”
section. .
When 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.
. Crosswinds and rough roads will ad-
versely affect vehicle/trailer handling,
possibly causing vehicle sway. When
being passed by larger vehicles, be pre-
pared for possible changes in crosswinds
that could affect vehicle handling.
Do the following if the trailer begins to sway:
1. Take your foot off the accelerator pedal to allow the vehicle to coast and steer as
straight ahead as the road conditions
allow. This combination will help stabilize
the vehicle.
.Do not correct trailer sway by steering
or applying the brakes.
2. When the trailer sway stops, gently apply the brakes and pull to the side of
the road in a safe area.
3. Try to rearrange the trailer load so it is balanced as described earlier in this
section.
. Be careful when passing other vehicles.
Passing while towing a trailer requires
considerably more distance than normal
passing. Remember the length of the
trailer must also pass the other vehicle
before you can safely change lanes. .
Use the TOW mode or downshift the
transmission to a lower gear for engine
braking when driving down steep or long
hills. This will help slow the vehicle
without applying the brakes.
. Avoid holding the brake pedal down too
long or too frequently. This could cause
the brakes to overheat, resulting in
reduced braking efficiency.
. Increase your following distance to allow
for greater stopping distances while
towing a trailer. Anticipate stops and
brake gradually.
. INFINITI recommends that the cruise
control not be used while towing a
trailer.
. While towing a trailer, do not use the
following systems (if so equipped):
— the Lane Departure Warning (LDW) system
— the Lane Departure Prevention (LDP) system
— the Blind Spot Warning (BSW) system
— the Blind Spot Intervention
®(BSI)
system
— the Back-up Collision Intervention (BCI) system
— the Intelligent Cruise Control (ICC) system
— the Distance Control Assist (DCA) system

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
measured under controlled conditions on
specified government test surfaces of as-
phalt and concrete. A tire marked C may
have poor traction performance.
WARNING
The traction grade assigned to this tire is
based on straight-ahead braking trac-
tion tests, and does not include accel-
eration, cornering, hydroplaning, or peak
traction characteristics.
TEMPERATURE A, B AND C
The temperature grades A (the highest), B,
and C, representing the tire’s resistance to
the generation of heat and its ability to
dissipate heat when tested under controlled
conditions on a specified indoor laboratory
test wheel. Sustained high temperature can
cause the material of the tire to degenerate
and reduce tire life, and excessive tempera-
ture can lead to sudden tire failure. The
grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Federal Motor VehicleSafety Standard No. 109. Grades B and A
represent higher levels of performance on
the laboratory test wheel than the minimum
required by law.
WARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, under-inflation, or excessive
loading, either separately or in combina-
tion, can cause heat build-up and possi-
ble tire failure.
Your INFINITI is covered by the following
emission warranties.
For USA:
.
Emission Defects Warranty
. Emissions Performance Warranty
Details of these warranties may be found
with other vehicle warranties in your War-
ranty Information Booklet that comes with
your INFINITI. If you did not receive a
Warranty Information Booklet, or it has
become lost, you may obtain a replacement
by writing to:
. INFINITI Division
Nissan North America, Inc.
Consumer Affairs Department
P.O. Box 685003
Franklin, TN 37068-5003
For Canada:
Emission Control System Warranty
Details of these warranties may be found
with other vehicle warranties in your War-
ranty and Roadside Assistance Information
that comes with your INFINITI. If you did not
receive a Warranty and Roadside Assistance
Information, or it has become lost, you may
obtain a replacement by writing to:
. Nissan Canada Inc.
5290 Orbitor Drive
Mississauga, Ontario,
Technical and consumer information10-31
EMISSION CONTROL SYSTEM
WARRANTY

11-2
Cargo light .............................................................. 2-71
Catalytic converter, Three way catalyst ......... 5-4
Center ventilators ................................................ 4-26
Child restraints ..................................................... 1-30Booster seats .................................................. 1-47
LATCH system ............................................... 1-32
Precautions on child restraints .................. 1-30
Top tether strap ............................................. 1-35
Child safety ........................................................... 1-28
Child safety rear door lock .................................. 3-6
Chimes Audible reminders .......................................... 2-19
Seat belt warning light and chime ............ 2-16
Circuit breaker, Fusible link .............................. 8-19
Cleaning exterior and interior .................... 7-2, 7-5
Climate control Automatic air conditioner .......................... 4-28
Automatic climate control .......................... 4-27
Clock ........................................................................\
2-31
Coat hooks ............................................................ 2-62
Cockpit ...................................................................... 2-3
Cold weather driving ........................................ 5-127
Console box ........................................................... 2-60
Console light ......................................................... 2-70
Coolant
Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ............................... 8-5
Checking engine coolant level ...................... 8-5
Corrosion protection ............................................. 7-8 Cruise control ....................................................... 5-60
Fixed speed cruise control (on
ICC system) ..................................................... 5-78
Intelligent cruise control (ICC) system .... 5-62
Cruise indicator .................................................... 2-25
Cup holders ........................................................... 2-57
Current fuel consumption ................................. 2-29
D
Daytime running light system .......................... 2-43
Dimensions ......................................................... 10-10
Distance Control Assist (DCA) system .......... 5-82
Drive belts .............................................................. 8-13
Drive positioner .................................................... 3-39
Driving Cold weather driving .................................. 5-127
Driving with automatic transmission ....... 5-18
On-pavement and off-road driving ........... 5-8
Precautions when starting and driving ..... 5-4
Safety precautions ........................................ 5-10
E
Economy, Fuel .................................................... 5-111
Elapsed time ......................................................... 2-29
Elapsed time and trip odometer ..................... 2-29
Emission control information label ............... 10-12
Emission control system warranty ............... 10-31
EngineBefore starting the engine .......................... 5-15
Break-in schedule ....................................... 5-109 Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ............................... 8-5
Changing engine oil and filter ...................... 8-6
Checking engine coolant level ...................... 8-5
Checking engine oil level ............................... 8-6
Coolant temperature gauge ......................... 2-8
Emergency engine shut off ......................... 5-14
Engine block heater ................................... 5-128
Engine compartment check locations ........ 8-3
Engine cooling system ................................... 8-4
Engine oil ........................................................... 8-6
Engine oil and oil
filter recommendation .................................. 10-6
Engine oil viscosity ........................................ 10-7
Engine serial number ................................. 10-12
Engine specifications ................................... 10-8
Engine start operation indicator ............... 2-23
If your vehicle overheats ............................. 6-14
Oil pressure gauge .......................................... 2-9
Protection mode ............................................ 5-17
Starting the engine ....................................... 5-15
Entry/exit function, Automatic
drive positioner .................................................... 3-39
Event Data Recorders (EDR) ........................ 10-34
Exhaust gas (carbon monoxide) ........................ 5-4
Explanation of scheduled
maintenance items ................................................. 9-5
Extended storage switch .................................. 8-20

F
F.M.V.S.S./C.M.V.S.S. certification label .... 10-12
FilterAir cleaner housing filter ............................. 8-14
Changing engine oil and filter ...................... 8-6
Flashers (See hazard warning
flasher switch) ......................................................... 6-2
Flat tire ...................................................................... 6-3
Flat towing ......................................................... 10-30
Flexible seating .................................................... 1-10
Floor mat cleaning ................................................. 7-6
Fluid Automatic Transmission Fluid (ATF) ......... 8-8
Brake fluid ......................................................... 8-9
Capacities and
recommended fluids/lubricants ................. 10-2
Engine coolant .................................................. 8-4
Engine oil ........................................................... 8-6
Power steering fluid ....................................... 8-8
Window washer fluid .................................. 8-10
Fog light switch ................................................... 2-45
Forward Emergency Braking (FEB) with
pedestrian detection system ............................ 5-93
Forward Emergency Braking system
warning light ......................................................... 2-14
Front passenger air bag and status light ..... 1-59
Front power seat adjustment ............................. 1-4
Front seat Front seat adjustment ........................ 1-4, 1-10
Front-seat active head restraint ...................... 1-17 Fuel
Capacities and
recommended fluids/lubricants ................. 10-2
Fuel economy ............................................... 5-111
Fuel information ........................................... 10-4
Fuel octane rating ........................................ 10-4
Fuel-filler cap .................................................. 3-26
Fuel-filler door ............................................... 3-26
Gauge .................................................................. 2-9
Loose Fuel Cap warning ............................. 3-28
Fuel efficient driving tips ................................. 5-110
Fuses ....................................................................... 8-18
Fusible links ........................................................... 8-19
G
Garage door opener HomeLink®
Universal Transceiver ........................ 2-71, 2-75
Gas cap ................................................................... 3-26
Gauge ........................................................................\
. 2-6 Engine coolant temperature gauge ............ 2-8
Engine oil pressure gauge ............................. 2-9
Fuel gauge ......................................................... 2-9
Odometer ............................................................ 2-7
Speedometer ...................................................... 2-7
Tachometer ....................................................... 2-8
Trip computer ................................................. 2-29
General maintenance ............................................. 9-2
Glove box ............................................................... 2-59
H
Hazard warning flasher switch ........................... 6-2
Head restraints/headrests ................................ 1-13
Headlight washer ................................................ 2-43
Headlights Aiming control ................................................ 2-42
Aiming control (See adaptive front
lighting system (AFS)) .................................. 2-43
Bulb replacement .......................................... 8-24
Headlight switch ............................................ 2-38
Heated seats ......................................................... 2-46
Heated steering wheel ....................................... 2-45
Heater Automatic climate control .......................... 4-27
Engine block heater ................................... 5-128
High beam assist ................................................. 2-40
Hill start assist system ..................................... 5-119
HomeLink
®Universal Transceiver ....... 2-71, 2-75
Hood release ......................................................... 3-21
Hook Coat hooks ...................................................... 2-62
Luggage hook ................................................. 2-62
Horn ........................................................................\
. 2-46
I
Ignition switch (Push-button) .......................... 5-12
Immobilizer system .............................................. 2-33
In-cabin microfilter .............................................. 4-36
Indicator
Lights ................................................................ 2-17
11-3

Standard maintenance .................................... 9-7
Maintenance schedules ........................................ 9-6
Malfunction indicator light (MIL) ..................... 2-17
Map lights .............................................................. 2-70
Master warning light .......................................... 2-16
Mechanical key (Intelligent Key system) .......... 3-3
Memory storage, Automatic
drive positioner .................................................... 3-39
Meter Trip computer ................................................. 2-29
Meters and gauges ................................................ 2-6 Instrument brightness control .................. 2-44
Mirror
Inside mirror ................................................... 3-30
Outside mirrors .............................................. 3-36
Smart Rearview Mirror ................................ 3-31
Vanity mirror ................................................... 3-38
Monitor Around View
®Monitor .................................. 4-3
Moonroof ............................................................... 2-66
Moving Object Detection (MOD) ................... 4-21
N
New vehicle break-in ....................................... 5-109
O
Odometer .................................................................. 2-7
Off-road recovery .................................................. 5-9 Oil
Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine oil and filter ...................... 8-6
Checking engine oil level ............................... 8-6
Engine oil ........................................................... 8-6
Engine oil pressure gauge ............................. 2-9
Engine oil viscosity ........................................ 10-7
Operation, operational indicators ................... 2-22
Outside air temperature .................................... 2-31
Outside mirrors .................................................... 3-36
Overheat, If your vehicle overheats ............... 6-14
Owner’s Manual/Service Manual
order information ............................................. 10-34
P
Panic alarm ............................................................ 3-16
Parking
Brake break-in .............................................. 5-122
Parking brake operation .............................. 5-22
Parking on hills ............................................ 5-120
Phone Car phone or CB radio ................................. 4-37
Pocket ..................................................................... 2-61
Power Front seat adjustment ................................... 1-4
Moonroof ......................................................... 2-67
Power door lock ............................................... 3-4
Power outlet ................................................... 2-54
Power steering fluid ....................................... 8-8
Power steering system .............................. 5-122 Power windows ............................................. 2-64
Precautions Braking precautions .................................... 5-122
Child restraints ............................................... 1-30
Cruise control ................................................ 5-60
Driving safety ................................................. 5-10
Maintenance ..................................................... 8-2
On-pavement and off-road driving ........... 5-8
Seat belt usage .............................................. 1-17
Supplemental restraint system .................. 1-51
When starting and driving ............................ 5-4
Predictive Forward Collision
Warning (PFCW) ............................................... 5-101
Push starting ......................................................... 6-13
Push-button ignition switch ............................. 5-12R
Radio
Car phone or CB radio ................................. 4-37
Rain-sensing auto wiper system ..................... 2-36
Rapid air pressure loss .......................................... 5-9
Readiness for inspection/maintenance
(I/M) test ............................................................ 10-33
Rear door alert ..................................................... 2-52
Rear door lock, Child safety rear door lock .... 3-6
Rear personal lights ............................................ 2-70
Rear ventilators .................................................... 4-26
Rear window wiper and washer switch ....... 2-37
Rear window wiper blades ............................... 8-16
Recorders, Event data .................................... 10-34
11-5

11-6
Registering your vehicle in another
country .................................................................. 10-11
Remote engine start ................................ 3-17, 3-18
Remote keyless entry system .......................... 3-15
Reporting safety defects ................................ 10-32
Roadside assistance program ............................. 6-2
Rollover .................................................................... 5-8
RoofMoonroof ......................................................... 2-67
Roof rack ......................................................... 2-63
S
SafetyChild seat belts ............................................... 1-28
Towing safety .............................................. 10-22
Seat adjustment Front power seat adjustment ...................... 1-4
Front seats ............................................. 1-4, 1-10
Seat belt(s) Child safety ..................................................... 1-28
Infants ............................................................... 1-29
Injured persons ............................................... 1-20
Larger children ............................................... 1-29
Precautions on seat belt usage ................. 1-17
Pregnant women ........................................... 1-20
Seat belt cleaning ............................................. 7-7
Seat belt extenders ....................................... 1-27
Seat belt maintenance ................................. 1-27
Seat belt warning light and chime ............ 2-16
Seat belts ......................................................... 1-17
Seat belts with pretensioners .................... 1-66 Small children .................................................. 1-29
Three-point type ............................................ 1-20
Seat(s) Climate controlled seats ............................. 2-48
Driver-side memory ...................................... 3-39
Heated seats ................................................... 2-46
Seats .................................................................... 1-3
Security system (INFINITI Vehicle
Immobilizer System), Engine start .................. 2-33
Security system, Vehicle security system ..... 2-32
Servicing climate control ................................... 4-36
Setting memory function, Automatic
drive positioner ................................................... 3-40
Shift lever, Shift lock release ............................ 5-21
Shift lock release Transmission ................................................... 5-21
Shifting, Automatic transmission .................... 5-18
Side ventilators .................................................... 4-26
Smart Rearview Mirror ...................................... 3-31
SNOW mode ....................................................... 5-121
Snow mode switch .............................................. 2-50
Spare tire ................................................... 8-37, 10-9
Spark plugs ............................................................ 8-14
Speedometer ............................................................ 2-7
Standard maintenance ................................ 9-7, 9-8
Starting Before starting the engine .......................... 5-15
Jump starting .................................................. 6-11
Precautions when starting and driving ..... 5-4
Push starting ................................................... 6-13
Starting the engine ....................................... 5-15 Status light, Front passenger air bag ............ 1-59
Steering
Heated steering wheel ................................. 2-45
Power steering fluid ....................................... 8-8
Power steering system .............................. 5-122
Tilt/telescopic steering ................................ 3-29
Storage ................................................................... 2-57
Sun visors ............................................................... 3-29
Sunglasses holder ................................................ 2-59
Supplemental air bag warning labels ............. 1-67
Supplemental air bag warning light ... 1-68, 2-16
Supplemental restraint system ......................... 1-51 Precautions on supplemental
restraint system ............................................. 1-51
Switch
Autolight switch ............................................. 2-38
Fog light switch ............................................. 2-45
Hazard warning flasher switch .................... 6-2
Headlight aiming control ............................. 2-42
Headlight switch ............................................ 2-38
Ignition switch ................................................ 5-18
Power door lock switch ................................. 3-5
Snow mode switch ....................................... 2-50
Turn signal switch ........................................ 2-44
Vehicle dynamic control (VDC)
off switch ......................................................... 2-51
T
Tachometer ............................................................. 2-8
Temperature gauge, Engine coolant
temperature gauge ............................................... 2-8