engine overheat INFINITI QX60 2020 User Guide

The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life
Antifreeze/Coolant (blue) and 50% water to
provide year-round antifreeze and coolant
protection. The antifreeze solution contains
rust and corrosion inhibitors. Additional en-
gine cooling system additives are not neces-
sary.
WARNING
∙ Never remove the radiator or coolantreservoir cap when the engine is hot.
Wait until the engine and radiator cool
down. Serious burns could be caused by
high pressure fluid escaping from the ra-
diator. For additional information on
precautions, refer to “If your vehicle
overheats” in the “In case of emergency”
section of this manual.
∙ The radiator is equipped with a pressure type radiator cap. To prevent engine
damage, use only a Genuine NISSAN ra-
diator cap.
CAUTION
∙ Never use any cooling system additivessuch as radiator sealer. Additives may
clog the cooling system and cause dam-
age to the engine, transmission and/or
cooling system.
∙ When adding or replacing coolant, be sure to use only Genuine NISSAN Long
Life Antifreeze/Coolant (blue) or
equivalent. Genuine NISSAN Long Life
Antifreeze/Coolant (blue) is pre-diluted
to provide antifreeze protection to -34°
F (-37° C). If additional freeze protection
is needed due to weather where you op-
erate your vehicle, add Genuine NISSAN
Long Life Antifreeze/Coolant (blue) con-
centrate following the directions on the
container. If an equivalent coolant other
than Genuine NISSAN Long Life
Antifreeze/Coolant (blue) is used, follow
the coolant manufacturer’s instructions
to maintain minimum antifreeze protec-
tion to -34° F (-37° C). The use of other
types of coolant solutions other than
Genuine NISSAN Long Life
Antifreeze/Coolant (blue) or equivalent
may damage the engine cooling system. ∙ The life expectancy of the factory-fill
coolant is 105,000 miles (168,000 km)
or 7 years. Mixing any other type of cool-
ant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) (or
equivalent coolant), including Genuine
NISSAN Long Life Antifreeze/Coolant
(green), or the use of non-distilled water
may reduce the life expectancy of the
factory-fill coolant. For additional infor-
mation, refer to the “Maintenance and
schedules” section of this manual.
ENGINE COOLING SYSTEM
8-4Do-it-yourself

CHECKING ENGINE COOLANT
LEVEL
Check the coolant levelin the reservoir when
the engine is cold. If the coolant level is below
the MIN level
B, add coolant to the MAX
level
A. If the reservoir is empty, check the
coolant level in the radiator when the engine
is cold. If there is insufficient coolant in the
radiator, fill the radiator with coolant up to
the filler opening and also add it to the reser-
voir up to the MAX level
A. This vehicle contains Genuine NISSAN Long
Life Antifreeze/Coolant (blue). The life ex-
pectancy of the factory-fill coolant is
105,000 miles (168,000 km) or 7 years.
Mixing any other type of coolant that is not
equivalent to Genuine NISSAN Long Life
Antifreeze/Coolant (blue), or the use of non-
distilled water will reduce the life expectancy
of the factory-fill coolant. For additional in-
formation, refer to the "Maintenance and
schedules" section of this manual.
If the cooling system frequently requires
coolant, have it checked. It is recommended
that you visit an INFINITI retailer for this
service.
For additional information on the location of
the engine coolant reservoir, refer to “Engine
compartment check locations” in this section.
CHANGING ENGINE COOLANT
An INFINITI retailer can change the engine
coolant. The service procedure can be found
in the INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheating.
WARNING
∙ To avoid the danger of being scalded,
never change the coolant when the en-
gine is hot.
∙ Never remove the radiator or engine coolant reservoir cap when the engine is
hot. Serious burns could be caused by
high pressure fluid escaping from the
radiator.
∙ Avoid direct skin contact with used cool- ant. If skin contact is made, wash thor-
oughly with soap or hand cleaner as soon
as possible.
∙ Keep coolant out of the reach of children and pets.
Engine coolant must be disposed of properly.
Check your local regulations.
LDI2860
Do-it-yourself8-5

Incorrect ignition timing may result in spark
knock, after-run and/or overheating, which
may cause excessive fuel consumption or en-
gine damage. If any of the above symptoms
are encountered, have your vehicle checked.
It is recommended that you visit an INFINITI
retailer.
However, now and then you may notice light
spark knock for a short time while accelerat-
ing or driving up hills. This is not a cause for
concern, because you get the greatest fuel
benefit when there is light spark knock for a
short time under heavy engine load.
ENGINE OIL AND OIL FILTER
RECOMMENDATIONS
Selecting the correct oil
It is essential to choose the correct grade,
quality and viscosity engine oil to ensure sat-
isfactory engine life and performance. For
additional information, refer to "Recom-
mended fluids/lubricants and capacities" in
this section. INFINITI recommends the use of
an energy conserving oil in order to improve
fuel economy.Select only engine oils that meet the Ameri-
can Petroleum Institute (API) certification or
International Lubricant Standardization and
Approval Committee (ILSAC) certification
and SAE viscosity standard. These oils have
the API certification mark on the front of the
container. Oils which do not have the speci-
fied quality label should not be used as they
could cause engine damage.
Oil additives
INFINITI does not recommend the use of oil
additives. The use of an oil additive is not
necessary when the proper oil type is used
and maintenance intervals are followed.
LTI2051
10-6Technical and consumer information

Your new vehicle was designed to be used
primarily to carry passengers and cargo. Re-
member that towing a trailer places addi-
tional loads on your vehicle’s engine, drive
train, steering, braking and other systems.
An INFINITI Towing Guide (U.S. only) is avail-
able on the website atwww.InfinitiUSA.com.
This guide includes information on trailer
towing capability and the special equipment
required for proper towing.
MAXIMUM LOAD LIMITS
Maximum trailer loads
Never allow the total trailer load to exceed
the value specified in the following Towing
Load/Specification Chart found in this sec-
tion. The total trailer load equals trailer
weight plus its cargo weight.
∙ When towing a trailer load of 3,500 lbs.
(1,587 kg) or more, trailers with a brake
system MUST be used.
The maximum Gross Combined Weight Rat-
ing (GCWR) should not exceed the value
specified in the following Towing
Load/Specification Chart. The GCWR equals the combined weight of
the towing vehicle (including passengers and
cargo) plus the total trailer load. Towing
loads greater than these or using improper
towing equipment could adversely affect ve-
hicle handling, braking and performance.
The ability of your vehicle to tow a trailer is
not only related to the maximum trailer loads,
but also the places you plan to tow. Tow
weights appropriate for level highway driving
may have to be reduced for low traction situ-
ations (for example, on slippery boat ramps).
Temperature conditions can also affect tow-
ing. For example, towing a heavy trailer in
high outside temperatures on graded roadscan affect engine performance and cause
overheating. The engine protection mode,
which helps reduce the chance of engine
damage, could activate and automatically
decrease engine power. Vehicle speed may
decrease under high load. Plan your trip care-
fully 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 colli-
sion. 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. For additional informa-
tion, refer to “If your vehicle overheats” in
the “In case of emergency” section of this
manual.
CAUTION
Vehicle damage resulting from improper
towing procedures is not covered by
INFINITI warranties.
LTI2030
10-18Technical and consumer information

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 pro-
vides “engine braking” and reduces the
need to brake as frequently.
∙ If the engine coolant temperature rises to a high temperature, refer to “If your ve-
hicle overheats” in the “In case of emer-
gency” section of this manual.
∙ Trailer towing requires more fuel than normal circumstances.
∙ Avoid towing a trailer for your vehicle’s first 500 miles (805 km).
∙ For the first 500 miles (805 km) that you do tow, do not drive over 50 mph
(80 km/h). ∙ Have your vehicle serviced more often
than at intervals specified in the recom-
mended maintenance schedule in the
“Maintenance and schedules” section of
this manual.
∙ 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 be-
ing passed by larger vehicles, be prepared
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 ap- ply 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 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.
∙ 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 re-
duced 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.
∙ Some states or provinces have specific regulations and speed limits for vehicles
that are towing trailers. Obey the local
speed limits.
10-28Technical and consumer information

Changing engine oil filter..........8-6
Checking engine oil level ..........8-6
Engine oil ...................8-6
Engine oil and oil filter
recommendation ..............10-6
Engine oil viscosity ............10-7
Outside mirrors ................3-35
Overhead sunglasses holder .........2-59
Overheat If your vehicle overheats .........6-13
Owner's manual order form ........10-34
Owner's manual/service manual
orderinformation..............10-34
P
Parking Parking brake operation .........5-23
Parking/parking on hills .........5-136
Parkingbrake..................5-23
Personal lights .................2-72
Power Power door locks ..............3-6
Power outlet ............2-53,2-55
Power rear windows ...........2-65
Power steering fluid ............8-10
Power steering system .........5-137
Power windows ..............2-63
Rear power windows ...........2-65
Power inverter switch .............2-52
Power outlet ..............2-53,2-55
Power steering ................5-137
Power steering fluid ..............8-10
Precautions Maintenance precautions .........8-2On-pavement and off-road driving
precautions
..................5-9
Precautions on booster
seats..........1-29,1-36,1-42,1-47
Precautions on child
restraints .......1-29,1-36,1-42,1-47
Precautionsonseatbeltusage .....1-17
Precautions on supplemental
restraint system ..............1-50
Precautions when starting
and driving ..............5-4,5-11
Predictive Forward Collision
Warning(PFCW)...............5-119
Push starting ..................6-13
R
Radio Car phone or CB radio ..........4-45
Rainsensor...................2-37
Readiness for inspection maintenance
(I/M)test...................10-32
Rear Cross Traffic Alert (RCTA) .......5-69
Rear Door Alert .........2-31,2-32,2-51
Rear power windows .............2-65
RearView Monitor ...............4-3
Rear window and outside mirror
defroster switch ................2-39
Rear window wiper and washer
switches .....................2-38
Recommended Fluids .............10-2
Recorders Event Data ................10-33
Refrigerant recommendation ........10-7Registering a vehicle in
anothercountry...............10-10
Remote Engine Start
.........3-19,5-18
Reporting safety defects (US only) ....10-31
Roadside assistance program .........6-2
Roof rack ....................2-62
S
Safety Child safety rear door lock .........3-7
C h

ildseatbelts....1-29,1-36, 1-42, 1-47
Reporting safety defects (US only) . .10-31
Seat adjustment Front power seat adjustment .......1-3
Rear seat adjustment ............1-5
Second row bench seats ..........1-8
Seatback pockets ............... 2-57
Seat belt Childsafety.................1-26
Infantsandsmallchildren ........1-26
Injured Person ...............1-20
Largerchildren...............1-27
Precautionsonseatbeltusage .....1-17
Pregnant women .............1-20
Seat belt extenders ............1-25
Seat belt maintenance ..........1-25
Seat belts ...............1 -17, 7-7
Three-point type with retractor .....1-21
Seat belt extenders ..............1-25
Seat belt warning light ........1-20,2-12
Seats 2nd row bench seat adjustment .....1-8
Adjustment ..................1-2
Armrests ...................1-8
11-5