2014 INFINITI QX80 engine overheat

2-8Instruments and controls
SIC4371
TACHOMETER
The tachometer indicates engine speed in
revolutions per minute (RPM).Do not rev
the engine into the red zone
*1.
CAUTION
When engine speed approaches the red
zone, shift to a higher gear or reduce engine
speed. Operating the engine in the red zone
may cause serious engine damage.
SIC4372
ENGINE COOLANT TEMPERATURE
GAUGE
The gauge indicates the engine coolant
temperature.
The engine coolant temperature is within
the normal range when the gauge needle
points within the zone
*1shown in the
illustration.
The engine coolant temperature varies with
the outside air temperature and driving
conditions.
CAUTION
If the gauge indicates engine coolant
temperature near the hot (H) end of the
normal range, reduce vehicle speed to
decrease temperature. If gauge is over the
normal range, stop the vehicle as soon as
safely possible. If the engine is overheated,
continued operation of the vehicle may
seriously damage the engine. See “If your
vehicle overheats” in the“6. In case of
emergency” section for immediate action
required.

SIC4444
To sound the horn, push the center pad
area of the steering wheel.
WARNING
Do not disassemble the horn. Doing so
could affect proper operation of the supple-
mental front air bag system. Tampering with
the supplemental front air bag system may
result in serious personal injury.
WARNING
Do not use or allow occupants to use the
seat heater if you or the occupants cannot
monitor elevated seat temperatures or have
an inability to feel pain in body parts that
contact the seat. Use of the seat heater by
such people could result in serious injury.
CAUTION
.The battery could run down if the seat
heater is operated while the engine is
not running.
. Do not use the seat heater for extended
periods or when no one is using the
seat.
. Do not put anything on the seat which
insulates heat, such as a blanket,
cushion, seat cover, etc. Otherwise, the
seat may become overheated.
. Do not place anything hard or heavy on
the seat or pierce it with a pin or similar
object. This may result in damage to the
heater. .
Any liquid spilled on the heated seat
should be removed immediately with a
dry cloth.
. When cleaning the seat, never use
gasoline, thinner, or any similar materi-
als.
. If any malfunctions are found or the
heated seat does not operate, turn the
switch off and have the system checked
by an INFINITI retailer.
Instruments and controls2-45
HORN HEATED SEATS (if so equipped)

Type A
The power outlet is used for powering
electrical accessories such as cellular
telephones.
CAUTION
.The outlet and plug may be hot during or
immediately after use.
. Do not use with accessories that exceed
a combined power draw of 12 volts,
120W (10A) for all the power outlets. Do
not use double adapters or more than
one electrical accessory.
. This power outlet is not designed for use
with a cigarette lighter unit.
. Push the plug in as far as it will go. If
good contact is not made, the plug may
overheat or the internal temperature
fuse may blow.
SIC2648
Main switch
Type B (if so equipped)
The power outlet (plug type) is located on
the back side of the front console. It can
operate when the ignition switch in the ON
position and the main switch (located in
the console box) is ON.
The specification of this power outlet is for
use of a 120 volt, 150W (1.25A) power
draw.
To turn on or off the power supply to the
outlet, push the ON
*1or OFF*2side of
the main switch. When the switch is turned
to the ON position, the indicator light
*A
will illuminate.
SIC4451
Power outlet
Pull up the cover and plug in.
After using the power outlet, be sure to
turn off the main switch.
CAUTION
. Do not use with accessories that exceed
a 120 volt, 150W (1.25A) power draw.
. Use this power outlet with the engine
running. (If the engine is stopped, this
could result in a discharged battery.)
Instruments and controls2-53

5-4Starting and driving
cause a fire.
CAUTION
.Do not use leaded gasoline. Deposits
from leaded gasoline seriously reduce
the three-way catalyst’s ability to help
reduce exhaust pollutants.
. Keep your engine tuned up. Malfunctions
in the ignition, fuel injection, or elec-
trical systems can cause overrich fuel
flow into the three-way catalyst, causing
it to overheat. Do not keep driving if the
engine misfires, or if noticeable loss of
performance or other unusual operating
conditions are detected. Have the vehicle
inspected promptly by an INFINITI retai-
ler.
. Avoid driving with an extremely low fuel
level. Running out of fuel could cause
the engine to misfire, damaging the
three-way catalyst.
. Do not race the engine while warming it
up.
. Do not push or tow your vehicle to start
the engine.
TIRE PRESSURE MONITORING SYS-
TEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your vehicle
has been equipped with a Tire Pressure
Monitoring System (TPMS) that illuminates
a low tire pressure telltale when one or
more of your tires is significantly under-
inflated. Accordingly, when the low tire
pressure telltale illuminates, you should
stop and check your tires as soon as
possible, and inflate them to the proper
pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and
can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and
stopping ability.
Please note that the TPMS is not a
substitute for proper tire maintenance, and it is the driver’
s responsibility to
maintain correct tire pressure, even if
under-inflation has not reached the level
to trigger illumination of the TPMS low tire
pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction,
the telltale will flash for approximately one
minute and then remain continuously
illuminated. This sequence will continue
upon subsequent vehicle start-ups as long
as the malfunction exists. When the mal-
function indicator is illuminated, the sys-
tem may not be able to detect or signal low
tire pressure as intended. TPMS malfunc-
tions may occur for a variety of reasons,
including the installation of replacement or
alternate tires or wheels on the vehicle that
prevent the TPMS from functioning prop-
erly. Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ensure that the
replacement or alternate tires and wheels
allow the TPMS to continue to function
properly.

5-10Starting and driving
WARNING
.Drive carefully when off the road and
avoid dangerous areas. Every person
who drives or rides in this vehicle should
be seated with their seat belt fastened.
This will keep you and your passengers
in position when driving over rough
terrain.
. Do not drive across steep slopes. Instead
drive either straight up or straight down
the slopes. Off-road vehicles can tip over
sideways much more easily than they
can forward or backward.
. Many hills are too steep for any vehicle.
If you drive up them, you may stall. If
you drive down them, you may not be
able to control your speed. If you drive
across them, you may roll over.
. Do not shift ranges while driving on
downhill grades as this could cause loss
of control of the vehicle.
. Stay alert when driving to the top of a
hill. At the top there could be a drop-off
or other hazard that could cause an
accident. .
If your engine stalls or you cannot make
it to the top of a steep hill, never attempt
to turn around. Your vehicle could tip or
roll over. Always back straight down in R
(Reverse) range. Never back down in N
(Neutral), using only the brake, as this
could cause loss of control.
. Heavy braking going down a hill could
cause your brakes to overheat and fade,
resulting in loss of control and an
accident. Apply brakes lightly and use
a low range to control your speed.
. Unsecured cargo can be thrown around
when driving over rough terrain. Prop-
erly secure all cargo so it will not be
thrown forward and cause injury to you
or your passengers.
. To avoid raising the center of gravity
excessively, do not exceed the rated
capacity of the roof rack (if so equipped)
and evenly distribute the load. Secure
heavy loads in the cargo area as far
forward and as low as possible. Do not
equip the vehicle with tires larger than
specified in this manual. This could
cause your vehicle to roll over.
. Do not grip the inside or spokes of the
steering wheel when driving off-road. The steering wheel could move suddenly
and injure your hands. Instead drive with
your fingers and thumbs on the outside
of the rim.
. Before operating the vehicle, ensure that
the driver and all passengers have their
seat belts fastened.
. Always drive with the floor mats in place
as the floor may became hot.
. Lower your speed when encountering
strong crosswinds. With a higher center
of gravity, your INFINITI is more affected
by strong side winds. Slower speeds
ensure better vehicle control.
. Do not drive beyond the performance
capability of the tires, even with 4WD
engaged.
. For 4WD equipped vehicles, do not
attempt to raise two wheels off the
ground and shift the transmission to
any drive or reverse position with the
engine running. Doing so may result in
drivetrain damage or unexpected vehicle
movement which could result in serious
vehicle damage or personal injury.
. Do not attempt to test a 4WD equipped
vehicle on a 2-wheel dynamometer (such
as the dynamometers used by some

5-16Starting and driving
ENGINE PROTECTION MODE
The engine has an engine protection mode
to reduce the chance of damage if the
coolant temperature becomes too high (for
example, when climbing steep grades in
high temperature with heavy loads, such
as when towing a trailer).
When the engine temperature reaches a
certain level:
.The engine coolant temperature gauge
will move toward the H position.
. Engine power may be reduced.
. The air conditioning cooling function
may be automatically turned OFF for a
short time (the blower will continue to
operate).
Engine power and, under some conditions,
vehicle speed will decrease. Vehicle speed
can be controlled with the accelerator
pedal, but the vehicle may not accelerate
at the desired speed. The transmission will
downshift or upshift as it reaches pre-
scribed shift points. You can also shift
manually.
As driving conditions change and engine
coolant temperature is reduced, vehicle
speed can be increased using the accel-
erator pedal, and air conditioning cooling function will automatically be turned back
ON.
If:
1. The engine coolant temperature is not
reduced.
2. The air conditioning cooling function does not turn back ON.
3. The engine oil pressure warning light
illuminates or engine coolant
temperature gauge does not return to
the normal range from the H position,
this may indicate a malfunction. Move
the vehicle off the road to a safe area
and allow the engine to cool. If after
checking the oil and coolant, the
remains on or engine coolant tempera-
ture does not return to the normal
range, do not continue to drive and
contact an INFINITI retailer.
The Malfunction Indicator Light (MIL)
may also come ON. You do not need to
have your vehicle towed, unless it remains
on, but have it inspected soon by an
INFINITI retailer. See “Warning/indicator
lights and audible reminders” in the“2.
Instruments and controls” section.
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 over-
heats” in the“6. In case of emergency”
section.
CAUTION
Running the engine with the engine oil
pressure warning light on could cause
serious damage to the engine almost
immediately. Such damage is not covered
by warranty. Turn off the engine as soon as
it is safe to do so.
DRIVING THE VEHICLE

5-110Starting and driving
WARNING
If the engine is not running or is turned off
while driving, the power assist for the
steering will not work. Steering will be
harder to operate.
The power assisted steering uses a hy-
draulic pump, driven by the engine, to
assist steering.
If the engine stops or the drive belt breaks,
you will still have control of the vehicle.
However, much greater steering effort is
needed, especially in sharp turns and at
low speeds.
BRAKING PRECAUTIONS
The brake system has two separate hy-
draulic circuits. If one circuit malfunctions,
you will still have braking ability at two
wheels.
You may feel a small click and hear a sound
when the brake pedal is fully depressed
slowly. This is not a malfunction and
indicates that the brake assist mechanism
is operating properly.
Hydraulically-assisted brakes
The hydraulically-assisted brake system is
designed to use a hydraulic pump driven
electrically, to assist braking. If the engine
stops, you can stop the vehicle by depres-
sing the foot brake pedal. However, greater
foot pressure on the foot brake pedal will
be required to stop the vehicle. The
stopping distance will be longer.
Wet brakes
When the vehicle is washed or driven
through water, the brakes may get wet.
As a result, your braking distance will be
longer and the vehicle may pull to one side
during braking.
To dry brakes, drive the vehicle at a safe
speed while lightly tapping the brake pedalto heat-up the brakes. Do this until the
brakes return to normal. Avoid driving the
vehicle at high speeds until the brakes
function correctly.
PARKING BRAKE BREAK-IN
Break in the parking brake shoes whenever
the stopping effect of the parking brake is
weakened or whenever the parking brake
shoes and/or drums/rotors are replaced,
in order to assure the best braking
performance.
This procedure is described in the vehicle
service manual and can be performed by
an INFINITI retailer.
Using the brakes
Avoid resting your foot on the brake pedal
while driving. This will cause overheating
of the brakes, wearing out the brake and
pads faster and reduce gas mileage.
To help save the brakes and to prevent the
brakes from overheating, reduce speed
and downshift to a lower gear before going
down a slope or long grade. Overheated
brakes may reduce braking performance
and could result in loss of vehicle control.
POWER STEERING
BRAKE SYSTEM

6 In case of emergency
Hazard warning flasher switch ............................. 6-2
Roadside assistance program .............................. 6-2
Emergency engine shut off .................................. 6-3
Flat tire................................................................ 6-3Tire Pressure Monitoring System (TPMS) ........ 6-3
Changing a flat tire ......................................... 6-4 Jump starting .................................................... 6-11
Push starting .................................................... 6-13
If your vehicle overheats ................................... 6-14
Towing your vehicle .......................................... 6-15
Towing recommended by INFINITI ................. 6-16
Vehicle recovery (freeing a stuck vehicle) ..... 6-18