coolant temperature INFINITI QX80 2021 User Guide

9-4Maintenance and schedules
equipped) hold securely in all latched posi-
tions.
Steering wheel:Check for changes in the
steering conditions, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure that
all warning lights and chimes are operating
properly.
Windshield defroster: Check that the air
comes out of the defroster outlets properly
and in sufficient quantity when operating
the heater or air conditioner.
Windshield wiper and washer*: Check that
the wipers and washer operate properly and
that the wipers do not streak.
Under the hood and vehicle
The maintenance items listed here should be
checked periodically (for example, each time
you check the engine oil or refuel).
Battery*: Check the fluid level in each cell. It
should be between the MAX and MIN lines.
Vehicles operated in high temperatures or
under severe condition require frequent
checks of the battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as: 1.
Installation or extended use of electro-
nic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
Brake fluid level*: Make sure that the brake
fluid level is between the MAX and MIN lines
on the reservoir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Engine drive belt*: Make sure that no belt is
frayed, worn, cracked or oily.
Engine oil level*: Check the level after
parking the vehicle on a level spot and
turning off the engine. Wait more than 15
minutes for the oil to drain back into the oil
pan.
Exhaust system: Make sure there are no
loose supports, cracks or holes. If the sound
of the exhaust seems unusual or there is a
smell of exhaust fumes, immediately have
the exhaust system inspected. It is recom-
mended you visit an INFINITI retailer for this
service. (See “Precautions when starting and
driving” (P.5-4) for exhaust gas (carbon
monoxide).) Fluid leaks:
Check under the vehicle for fuel,
oil, water or other fluid leaks after the
vehicle has been parked for a while. Water
dripping from the air conditioner after use is
normal. If you should notice any leaks or if
gasoline fumes are evident, check for the
cause and have it corrected immediately.
Power steering fluid level* and lines: Check
the level when the fluid is cold, with the
engine off. Check the lines for proper
attachment, leaks, cracks, etc.
Radiator and hoses: Check the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks, defor-
mation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances, otherwise rust will form on the
floor pan, frame, fuel lines and around the
exhaust system. At the end of winter, the
underbody should be thoroughly flushed
with plain water, being careful to clean
those areas where mud and dirt may accu-
mulate. For additional information, see
“Cleaning exterior” (P.7-2).
Windshield washer fluid*: Check that there
is adequate fluid in the reservoir.

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
Technical and consumer information10-29

11-2
Cargo light ............................................................. 2-75
Catalytic converter, Three way catalyst ......... 5-4
Center ventilators ................................................ 4-27
Child restraints ...................................................... 1-31Booster seats .................................................. 1-48
LATCH system ............................................... 1-33
Precautions on child restraints .................. 1-31
Top tether strap ............................................. 1-36
Child safety ........................................................... 1-29
Child safety rear door lock .................................. 3-6
Chimes Audible reminders .......................................... 2-19
Seat belt warning light and chime ............ 2-14
Circuit breaker, Fusible link .............................. 8-19
Cleaning exterior and interior .................... 7-2, 7-5
Climate control Automatic air conditioner ........................... 4-29
Automatic climate control ......................... 4-28
Clock ........................................................................\
2-33
Coat hooks ............................................................ 2-65
Cockpit ...................................................................... 2-3
Cold weather driving ........................................ 5-128
Console box ........................................................... 2-63
Console light ......................................................... 2-73
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 ....................................................... 5-62
Fixed speed cruise control (on
ICC system) .................................................... 5-80
Intelligent cruise control (ICC) system .... 5-64
Cruise indicator .................................................... 2-26
Cup holders ........................................................... 2-60
Current fuel consumption ................................. 2-31
D
Daytime running light system .......................... 2-45
Dimensions ......................................................... 10-10
Distance Control Assist (DCA) system .......... 5-84
Drive belts .............................................................. 8-13
Drive positioner ................................................... 3-40
Driving Cold weather driving ................................. 5-128
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
E-Call (SOS) Button ........................................... 2-59
Economy, Fuel .................................................... 5-113
Elapsed time ......................................................... 2-31
Elapsed time and trip odometer ..................... 2-31
Emission control information label ............... 10-12
Emission control system warranty .............. 10-32
EngineBefore starting the engine .......................... 5-15 Break-in schedule ........................................ 5-111
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 .................................... 5-129
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 ............... 2-24
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 ................................................... 3-40
Event Data Recorders (EDR) ........................ 10-35
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 .......................................................... 10-31
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 ................................................... 2-47
Forward Emergency Braking (FEB) with
pedestrian detection system ............................ 5-95
Forward Emergency Braking system
warning light ......................................................... 2-16
Front passenger air bag and status light ..... 1-60
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 ............................................... 5-113
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 ................................. 5-112
Fuses ....................................................................... 8-18
Fusible links ........................................................... 8-19
G
Garage door opener HomeLink®
Universal Transceiver ....................... 2-75, 2-79
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 ................................................. 2-31
General maintenance ............................................. 9-2
Glove box ............................................................... 2-63
H
Hazard warning flasher switch ........................... 6-2
Head restraints/headrests ................................ 1-13
Headlight washer ................................................ 2-45
Headlights Aiming control ............................................... 2-44
Aiming control (See adaptive front
lighting system (AFS)) .................................. 2-45
Bulb replacement .......................................... 8-24
Headlight switch ........................................... 2-40
Heated seats ......................................................... 2-48
Heated steering wheel ....................................... 2-47
Heater Automatic climate control ......................... 4-28
Engine block heater .................................... 5-129
High beam assist ................................................. 2-41
Hill start assist system .................................... 5-120
HomeLink
®Universal Transceiver ....... 2-75, 2-79
Hood release ......................................................... 3-21
Hook Coat hooks ...................................................... 2-65
Luggage hook ................................................. 2-66
Horn ........................................................................\
. 2-48
I
Ignition switch (Push-button) .......................... 5-12
Immobilizer system .............................................. 2-35
In-cabin microfilter .............................................. 4-36
Indicator
Vehicle information display ........................ 2-20
11-3

11-6
Rollover .................................................................... 5-8
RoofMoonroof ......................................................... 2-71
Roof rack ......................................................... 2-67
S
SafetyChild seat belts ............................................... 1-29
Towing safety .............................................. 10-23
Seat adjustment Front power seat adjustment ...................... 1-4
Front seats ............................................. 1-4, 1-10
Seat belt(s) Child safety ..................................................... 1-29
Infants ............................................................... 1-30
Injured persons ............................................... 1-21
Larger children ............................................... 1-30
Precautions on seat belt usage ................. 1-18
Pregnant women ........................................... 1-21
Seat belt cleaning ............................................. 7-7
Seat belt extenders ....................................... 1-28
Seat belt maintenance ................................. 1-28
Seat belt warning light and chime ............ 2-14
Seat belts ......................................................... 1-18
Seat belts with pretensioners .................... 1-67
Small children .................................................. 1-30
Three-point type ............................................ 1-21
Seat(s) Climate controlled seats ............................. 2-50
Driver-side memory ..................................... 3-40
Heated seats .................................................. 2-48 Seats .................................................................... 1-3
Security system (INFINITI Vehicle
Immobilizer System), Engine start .................. 2-35
Security system, Vehicle security system ..... 2-34
Servicing climate control ................................... 4-37
Setting memory function, Automatic
drive positioner .................................................... 3-41
Shift lever, Shift lock release ............................ 5-21
Shift lock release Transmission ................................................... 5-21
Shifting, Automatic transmission .................... 5-18
Side ventilators .................................................... 4-27
Smart Rearview Mirror ...................................... 3-31
SNOW mode ....................................................... 5-122
Snow mode switch .............................................. 2-52
Spare tire ................................................... 8-37, 10-9
Spark plugs ............................................................ 8-14
Speedometer ............................................................ 2-7
Standard maintenance .......................................... 9-7
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 ............ 1-60
Steering Heated steering wheel ................................. 2-47
Power steering fluid ....................................... 8-8
Power steering system .............................. 5-123
Tilt/telescopic steering ................................ 3-29 Storage ................................................................... 2-60
Sun visors ............................................................... 3-30
Sunglasses holder ................................................ 2-62
Supplemental air bag warning labels ............. 1-68
Supplemental air bag warning light ... 1-69, 2-14
Supplemental restraint system ........................ 1-52
Precautions on supplemental
restraint system ............................................. 1-52
Switch
Autolight switch ............................................ 2-40
Fog light switch ............................................. 2-47
Hazard warning flasher switch .................... 6-2
Headlight aiming control ............................ 2-44
Headlight switch ........................................... 2-40
Ignition switch ................................................ 5-18
Power door lock switch ................................. 3-5
Snow mode switch ........................................ 2-52
Turn signal switch ......................................... 2-46
Vehicle dynamic control (VDC)
off switch ......................................................... 2-53
T
Tachometer ............................................................. 2-8
Temperature gauge, Engine coolant
temperature gauge ............................................... 2-8
Theft (INFINITI Vehicle Immobilizer System),
Engine start ........................................................... 2-35
Three-way catalyst ............................................... 5-4
Tilt/telescopic steering ...................................... 3-29