2014 INFINITI Q50-HYBRID engine overheat

2-26Instruments and controls
Information label. (See“Low tire pressure
warning light” (P.2-15) and“Tire Pressure
Monitoring System (TPMS)” (P.5-4).)
17. Flat Tire - Visit dealer warning
This warning appears when the low tire
pressure warning light in the meter illumi-
nates and one or more flat tires are
detected while driving. A chime also
sounds for approximately 10 seconds.
(See“Low tire pressure warning light”
(P.2-15) and “Tire Pressure Monitoring
System (TPMS)” (P.5-4).)
18. Low oil pressure warning
This warning appears if low engine oil
pressure is detected. If the warning
appears during normal driving, pull off
the road in a safe area, stop the engine
immediately and call an INFINITI retailer or
other authorized repair shop.
The low oil pressure warning is not
designed to indicate a low oil level. Use
the dipstick to check the oil level. (See
“Engine oil”(P.8-12).)
19. High temperature warning
This warning appears when the engine
coolant temperature is extremely high.
CAUTION
If the high temperature warning appears
when the ignition switch is in the ON
position, stop the vehicle safely as soon
as possible.
If the vehicle is overheated, continuing
vehicle operation may seriously damage
the engine. (See “If your vehicle overheats”
(P.6-7) for the immediate action required.)
20. Hybrid system overheat warn-
ing
This warning appears when the tempera-
ture of the hybrid system is extremely high.
Stop the vehicle in a safe location as soon
as possible. Avoid quick starting or abrupt
acceleration. When the warning turns off,
the vehicle can be driven.
If the warning appears again soon after it
turns off, have the vehicle checked by an
INFINITI retailer.
WARNING
Do not hold the vehicle in a stopped
position on an uphill grade by depressing
the accelerator or by slowly creeping for-
ward. This may cause damage to the
transmission or the vehicle may enter traffic
causing serious injury or death. Always use
the brake pedal when stopping on an uphill
grade.
CAUTION
. If you continue to drive the vehicle while
the warning is displayed, the vehicle
may become undriveable. If this occurs,
place the shift lever in the “P”position
and wait for a short period of time with
the vehicle stopped until the display
goes out. In this case, the warning will
be displayed alternately with the SHIFT
“P” warning. (See “3. SHIFT“P”warn-
ing” (P.2-24).)
. Do not drive the vehicle with the warning
on. Doing so could cause a hybrid
system malfunction.

4. Current fuel consumption and
average fuel consumption (MPG, l
(liter)/100 km or km/l)
Current fuel consumption:
The current fuel consumption mode shows
the current fuel consumption.
Average fuel consumption:
The average fuel consumption mode shows
the average fuel consumption since the
last reset. Resetting is done by pushing the
orswitch for longer than 1
second.
The average fuel consumption is also reset
on the lower display. See the Infiniti
InTouch Owner’s Manual.
The display is updated every 30 seconds.
At about the first 1/3 mile (500 m) after a
reset, the display shows “——”.
5. Average speed (MPH or km/h)
The average speed mode shows the
average vehicle speed since the last reset.
Resetting is done by pushing the
orswitch for longer than 1 second.
The display is updated every 30 seconds.
The first 30 seconds after a reset, the
display shows “——”.
6. Elapsed time and trip odometer
(mile or km)
Elapsed time:
The elapsed time mode shows the time
since the last reset. Resetting is done by
pushing the
orswitch for longer
than 1 second. (The trip odometer is also
reset at the same time.)
Trip odometer:
The trip odometer mode shows the total
distance the vehicle has been driven since
the last reset. Resetting is done by pushing
the
orswitch for longer than 1
second. (The elapsed time is also reset at
the same time.)
7. Distance to empty (dte —mile or
km)
The distance to empty (dte) mode provides
you with an estimation of the distance that
can be driven before refueling. The dte is
constantly being calculated, based on the
amount of fuel in the fuel tank and the
actual fuel consumption.
The display is updated every 30 seconds.
The dte mode includes a low range warning
feature. If the fuel level is low, the warning
is displayed on the screen. When the fuel level drops even lower, the
dte display will change to
“——”.
. If the amount of fuel added is small, the
display just before the ignition switch
is pushed to the OFF position may
continue to be displayed.
. When driving uphill or rounding curves,
the fuel in the tank shifts, which may
momentarily change the display.
8. Engine coolant temperature
gauge
This gauge indicates the temperature of
the engine coolant. If the engine coolant is
overheated, the color of gauge will change
to the red.
The engine coolant temperature varies with
the outside air temperature and driving
conditions.
CAUTION
If the engine is overheated, continued
operation of the vehicle may seriously
damage the engine. See “If your vehicle
overheats” (P.6-7) for immediate action
required.
Instruments and controls2-33

5-4Starting and driving
THREE-WAY CATALYST
The three-way catalyst is an emission
control device installed in the exhaust
system. Exhaust gases in the three-way
catalyst are burned at high temperatures to
help reduce pollutants.
WARNING
.The exhaust gas and the exhaust system
are very hot. Keep people, animals or
flammable materials away from the
exhaust system components.
. Do not stop or park the vehicle over
flammable materials such as dry grass,
waste paper or rags. They may ignite and
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 hybrid system.
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.
If the vehicle is being driven with one or
more flat tires, the low tire pressure
warning light will illuminate continuously
and a chime will sound for 10 seconds. The
“Flat Tire - Visit dealer”
warning will also
appear in the vehicle information display.
The chime will only sound at the first
indication of a flat tire, and the warning
light will illuminate continuously. When the
flat tire warning is activated, have the
system reset and the tire checked and
replaced if necessary by an INFINITI retai-
ler. Even if the tire is inflated to the
specified COLD tire pressure, the warning

partment and that clamps do not contact
any other metal.
4. Start the engine of the booster vehicle
*Aand let it run for a few minutes.
5. Start the hybrid system of the vehicle being jump started
*B.
CAUTION
If the hybrid system does not start right
away, push the ignition switch to the OFF
position and wait 10 seconds before trying
again.
6. After starting your hybrid system, care-
fully disconnect the negative cable and
then the positive cable (
*4?*3?*2
?*1).
NOTE:
If it is not possible to turn the hybrid
system ON by following this procedure,
contact an INFINITI retailer immediately. Do not attempt to start the engine by
pushing.
CAUTION
.
Automatic Transmission (AT) models
cannot be push-started or tow-started.
Attempting to do so may cause trans-
mission damage.
. Three-way catalyst equipped models
should not be started by pushing since
the three-way catalyst may be damaged.
. Never try to start the vehicle by towing
it; when the engine starts, the forward
surge could cause the vehicle to collide
with the tow vehicle.
. Hybrid models cannot be push-started or
tow-started. Attempting to do so may
cause electrical or transmission damage.
CAUTION
.Do not continue to drive if your vehicle
overheats. Doing so could cause engine
damage or a vehicle fire.
. To avoid the danger of being scalded,
never remove the radiator cap while the
engine is still hot. When the radiator cap
is removed, pressurized hot water will
spurt out, possibly causing serious
injury.
. Do not open the hood if steam is coming
out.
If your vehicle is overheating (indicated by
an extremely high temperature gauge
reading), or if you feel a lack of engine
power, detect abnormal noise, etc., take
the following steps:
1. Move the vehicle safely off the road,
apply the parking brake and move the
shift lever to the P (Park) position.
Do not turn the INFINITI Direct Re-
sponse Hybrid
®System off.
2. Turn off the climate control. Open all the windows, move the heater or air
conditioner temperature control to
In case of emergency6-7
PUSH STARTING IF YOUR VEHICLE OVERHEATS

6-8In case of emergency
maximum hot and fan control to high
speed.
3. If engine overheating is caused by climbing a long hill on a hot day, run
the engine at a fast idle (approximately
1,500 rpm) until the temperature gauge
indication returns to normal.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from the
radiator before opening the hood. (If
steam or coolant is escaping, turn off
the hybrid system.) Do not open the
hood further until no steam or coolant
can be seen.
5. Open the engine hood.
WARNING
If steam or water is coming from the engine,
stand clear to prevent getting burned.
6. Also check if the cooling fan is running. The radiator hoses and radiator should
not leak water. If coolant is leaking or
the cooling fan does not run, stop the
hybrid system.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, the engine cooling
fan. The engine cooling fan can start at any
time.
7. After the engine cools down, check thecoolant level in the reservoir tank with
the engine running. Add coolant to the
reservoir tank if necessary. Have your
vehicle repaired at the nearest INFINITI
retailer. When towing your vehicle, all State (Pro-
vincial in Canada) and local regulations for
towing must be followed. Incorrect towing
equipment could damage your vehicle.
Towing instructions are available from an
INFINITI retailer. Local service operators are
familiar with the applicable laws and
procedures for towing. To assure proper
towing and to prevent accidental damage
to your vehicle, INFINITI recommends that
you have a service operator tow your
vehicle. It is advisable to have the service
operator carefully read the following pre-
cautions.
WARNING
.
Never ride in a vehicle that is being
towed.
. Never get under your vehicle after it has
been lifted by a tow truck.
CAUTION
.When towing, make sure that the trans-
mission, axles, steering system and
powertrain are in working condition. If
any unit is damaged, dollies must be
TOWING YOUR VEHICLE

The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/Cool-
ant (blue) and 50% water to provide year-
round anti-freeze and coolant protection.
The anti-freeze solution contains rust and
corrosion inhibitors. Additional engine
cooling system additives are not neces-
sary.
WARNING
.Never remove the radiator cap when the
engine is hot. Wait until the engine and
radiator cool down. Serious burns could
be caused by high pressure fluid escap-
ing from the radiator. See precautions in
“If your vehicle overheats” (P.6-7) of this
manual.
. The radiator is equipped with a pressure
type radiator cap. To prevent engine
damage, use only a genuine NISSAN
radiator cap.
CAUTION
.Never use any cooling system additives
such as radiator sealer. Additives may clog the cooling system and cause
damage 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 equiva-
lent. Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) is pre-diluted to
provide antifreeze protection to −348F
(−378C). If additional freeze protection is
needed due to weather where you
operate your vehicle, add Genuine
NISSAN Long Life Antifreeze/Coolant
(blue) concentrate following the direc-
tions on the container. If an equivalent
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is used,
follow the coolant manufacture’s instruc-
tions to maintain minimum antifreeze
protection to −348F(−378C). The use of
other types of coolant solutions other
than Genuine NISSAN Long Life Anti-
freeze/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
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue), including Genuine NISSAN Long Life Antifreeze/
Coolant (green), or the use of non-
distilled water will reduce the life
expectancy of the factory-fill coolant.
Refer to the INFINITI Service and Main-
tenance Guide for more details.
Maintenance and do-it-yourself8-9
ENGINE COOLING SYSTEM

8-10Maintenance and do-it-yourself
JVM0251X
CHECKING ENGINE COOLANT LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below MIN
*2, open the reservoir
tank cap and add coolant up to the MAX
*1
level. If the reservoir tank 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 reservoir tank up to the
MAX level
*1.
Tighten the cap securely after adding
engine coolant. If the cooling system requires coolant
frequently, have it checked by an INFINITI
retailer.
CHANGING ENGINE COOLANT
Major cooling system repairs should be
performed by an INFINITI retailer. The
service procedures can be found in the
appropriate INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
.
To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
. Never remove the radiator 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
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner as
soon as possible.
. Keep coolant out of reach of children and
pets.
Engine coolant must be disposed of
properly. Check your local regulations.

8-12Maintenance and do-it-yourself
JVM0326X
CHECKING INVERTER COOLANT LE-
VEL
Check the coolant level in the reservoir
when the engine and inverter are cold. If
the coolant level is below the MIN level
*B,
add coolant to the MAX level
*A.
If the inverter cooling system frequently
requires coolant, have it checked by an
INFINITI retailer.
CHANGING INVERTER COOLANT
An INFINITI ratailer can change the inverter
coolant. The service procedure can be
found in the INFINITI Service Manual.
Improper servicing can result in inverter
overheating.
WARNING
. To avoid the danger of being scalded,
never change the coolant when the
inverter is hot.
. Never remove the cap when the inverter
is hot. Serious burns could be caused by
high pressure fluid escaping from the
inverter coolant reservoir.
. Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner as
soon as possible.
. Keep coolant out of the reach of children
and pets.
Inverter coolant must be disposed of
properly. Check your local regulations.
SDI2045
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface and
apply the parking brake.
2. Run the engine until it reaches operat- ing temperature.
3. Turn off the engine. Wait more than 15
minutes for the oil to drain back into
the oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way.
5. Remove the dipstick again and check the oil level. It should be within the
range
*1. If the oil level is below*2,
remove the oil filler cap and pour
ENGINE OIL