2014 INFINITI Q50-HYBRID coolant level

Hybrid System-4Hybrid System Overview
The emergency shut-off system is activated
and the high-voltage system automatically
turns off in the following conditions:
.Front and side collisions in which the
air bags are deployed.
. Certain rear collisions.
. Certain INFINITI Direct Response Hy-
brid
®System malfunctions
For the above collisions and the certain
hybrid system malfunctions, the READY to
drive indicator light will turn off. See
“Warning/indicator lights and audible re-
minders” (P.2-12).
The emergency shut-off activates for the
above collisions to minimize risk of an
event that could cause injury or an
accident. If the emergency shut-off system
activates, the hybrid system may not
switch to READY to drive position, contact
an INFINITI retailer. Even if the ignition
switch is switched to READY to drive
position, the system may shut-off sud-
denly. Therefore, drive cautiously to the
nearest INFINITI retailer or contact an
INFINITI retailer as soon as possible. To start the INFINITI Direct Response
Hybrid
®System:
1. Depress the brake pedal and place the ignition switch in the ON position when
the transmission is in the P (Park) or N
(Neutral) position (P is recommended).
(For more details, see “Push-button
ignition switch” (P.5-10).)
2. The READY to drive indicator light
flashes, then turns illuminated. (The
hybrid system switched to the READY to
drive mode when the indicator light
illuminates.)
When the READY to drive indicator light
illuminates, the vehicle can be
driven, even if the gasoline engine is not
running.
NOTE:
The gasoline engine starts and stops
automatically. It may stop during low
speed driving, deceleration or when the
vehicle is stopped.
The gasoline engine may automatically
run in the following conditions:
. The level of remaining charge in the
Lithium ion (Li-ion) battery is low. The
engine runs to charge the Li-ion
battery and to provide power to the drive the vehicle.
. The temperature of the engine coolant
is low.
. Based on driving conditions.
. The shift lever is shifted to the P (Park)
position, the driver’ s seat belt is
released and the driver’s side door is
then opened.
The hybrid system operates as follows
based on driving conditions and the Li-ion
battery charge.
STARTING AND SLOW SPEED DRIV-
ING
The vehicle is driven by the electric motor
depending on the available Li-ion battery
charge.
MEDIUM OR HIGH SPEED DRIVING
The system automatically controls the
gasoline engine and electric motor in order
to obtain the optimum fuel mileage and
performance, depending on the driving
situation and available Li-ion battery
charge.
When the remaining battery level is low,
the Li-ion battery is charged by the electric
motor that is driven to generate electric
power while the vehicle is driving.
EMERGENCY SHUT-OFF SYSTEM OPERATION OF THE INFINITI DIRECT
RESPONSE HYBRID®SYSTEM

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

JVS0264X
INTELLIGENT KEY BATTERY DIS-
CHARGE
If the battery of the Intelligent Key is
discharged, or environmental conditions
interfere with the Intelligent Key operation,
start the hybrid system according to the
following procedure:
1. Move the shift lever to the P (Park)position.
2. Firmly apply the foot brake.
3. Touch the ignition switch with the Intelligent Key as illustrated. (A chime
will sound.) 4. Push the ignition switch while depres-
sing the brake pedal within 10 seconds
after the chime sounds. The hybrid
system will start.
After step 3 is performed, when the
ignition switch is pushed without depres-
sing the brake pedal, the ignition switch
position will change to ACC.
NOTE:
. When the ignition switch is pushed to
the ACC or ON position or the hybrid
system is started by the above proce-
dures, the Intelligent Key battery dis-
charge indicator appears in the vehicle
information display even if the Intelli-
gent Key is inside the vehicle. This is
not a malfunction. To turn off the
Intelligent Key battery discharge indi-
cator, touch the ignition switch with
the Intelligent Key again.
. If the Intelligent Key battery discharge
indicator appears, replace the battery
as soon as possible. (See “Intelligent
Key battery replacement” (P.8-25).).
Make sure the area around the vehicle
is clear.
. Check fluid levels such as engine oil,
coolant, brake fluid and window
washer fluid as frequently as possible,
or at least whenever you refuel.
. Check that all windows and lights are
clean.
. Visually inspect tires for their appear-
ance and condition. Also check tires for
proper inflation.
. Lock all doors.
. Position seat and adjust head re-
straints.
. Adjust inside and outside mirrors.
. Fasten seat belts and ask all passen-
gers to do likewise.
. Check the operation of warning lights
when the ignition switch is pushed to
the ON position. (See “Warning/indica-
tor lights and audible reminders” (P.2-
12).)
Starting and driving5-13
BEFORE STARTING THE INFINITI DIRECT
RESPONSE HYBRID®SYSTEM

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

8 Maintenance and do-it-yourself
Maintenance requirement.................................... 8-2
Scheduled maintenance .................................. 8-2
General maintenance....................................... 8-2
Where to go for service ................................... 8-2
General maintenance ........................................... 8-2 Explanation of maintenance items ................... 8-2
Maintenance precautions ..................................... 8-5
Engine compartment check locations ................... 8-7 VQ35HR engine ............................................... 8-7
Engine cooling system ......................................... 8-9
Checking engine coolant level ....................... 8-10
Changing engine coolant ............................... 8-10
Inverter cooling system...................................... 8-11
Checking inverter coolant level ...................... 8-12
Changing inverter coolant.............................. 8-12
Engine oil .......................................................... 8-12
Checking engine oil level............................... 8-12
Changing engine oil and filter ....................... 8-13
Automatic transmission fluid ............................. 8-15
Brake fluid......................................................... 8-15
Window washer fluid ......................................... 8-16
12-volt battery ................................................... 8-17 Checking battery fluid level ........................... 8-18
Jump starting ................................................ 8-18 Spark plugs ...................................................... 8-19
Replacing spark plugs ................................. 8-19
Air cleaner ........................................................ 8-20
Windshield wiper blades ................................... 8-21 Cleaning ...................................................... 8-21
Replacing..................................................... 8-21
Brakes .............................................................. 8-22 Self-adjusting brakes ................................... 8-22
Brake pad wear warning .............................. 8-22
Fuses ................................................................ 8-23
Engine compartment and trunk .................... 8-23
Passenger compartment............................... 8-24
Intelligent Key battery replacement ................... 8-25
Lights................................................................ 8-27 Exterior and interior lights ........................... 8-28
Wheels and tires ............................................... 8-30
Tire pressure ............................................... 8-30
Tire labeling ................................................ 8-33
Types of tires............................................... 8-35
Tire chains ................................................... 8-37
Changing wheels and tires........................... 8-38
Jacking up the vehicle and replacing tires .... 8-40

8-4Maintenance and do-it-yourself
seat adjusters, seatback recliner, etc. to
ensure they operate smoothly and that all
latches lock securely in every position.
Check that the head restraints move up
and down smoothly and that the locks (if
so equipped) hold securely in all latched
positions.
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).
12-volt 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 12-volt battery
discharge and potential no-start condi-
tions such as:
1.
Installation or extended use of electro-
nic accessories that consume 12-volt
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 12-volt battery may
need to be charged to maintain 12-volt
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 belts*: 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 INFINITI Direct Response
Hybrid
®System. 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, im-
mediately have the exhaust system in-
spected by an INFINITI retailer. (See
“Precautions when starting and driving”
(P.5-3).)
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.
Inverter coolant lebel: Check the coolant
level when the inverter is cold.
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,
deformation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as

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.