key INFINITI Q50 HYBRID 2014 Service Manual

WARNING
.Do not leave children or adults who
would normally require the support of
others alone in your vehicle. Pets should
not be left alone either. They could
accidentally injure themselves or others
through inadvertent operation of the
vehicle. Also, on hot, sunny days,
temperatures in a closed vehicle could
quickly become high enough to cause
severe or possibly fatal injuries to
people or animals.
. Closely supervise children when they are
around cars to prevent them from play-
ing and becoming locked in the trunk
where they could be seriously injured.
Keep the car locked, with the rear
seatback and trunk lid securely latched
when not in use, and prevent children’s
access to car keys.
EXHAUST GAS (carbon monoxide)
WARNING
.Do not breathe exhaust gases; they
contain colorless and odorless carbon
monoxide. Carbon monoxide is danger-
ous. It can cause unconsciousness or
death.
. If you suspect that exhaust fumes are
entering the vehicle, drive with all
windows fully open, and have the
vehicle inspected immediately.
. Do not run the engine in closed spaces
such as a garage.
. Do not park the vehicle with the INFINITI
Direct Response Hybrid
®System run-
ning for any extended length of time.
. Keep the trunk lid closed while driving,
otherwise exhaust gases could be drawn
into the passenger compartment. If you
must drive with the trunk lid open,
follow these precautions:
1) Open all the windows.
2) Set the air recirculation mode to off and the fan control to high to
circulate the air. .
If electrical wiring or other cable con-
nections must pass to a trailer through
the seal on the trunk lid or the body,
follow the manufacturer’s recommenda-
tion to prevent carbon monoxide entry
into the vehicle.
. The exhaust system and body should be
inspected by a qualified mechanic when-
ever:
—The vehicle is raised for service.
—You suspect that exhaust fumes are
entering into the passenger compart-
ment.
—You notice a change in the sound of
the exhaust system.
—You have had an accident involvingdamage to the exhaust system,
underbody, or rear of the vehicle.
Starting and driving5-3
PRECAUTIONS WHEN STARTING AND
DRIVING

SSD0659
OPERATING RANGE FOR HYBRID
SYSTEM START FUNCTION
The Intelligent Key can only be used for
starting the hybrid system when the
Intelligent Key is within the specified
operating range.
When the Intelligent Key battery is almost
discharged or strong radio waves are
present near the operating location, the
Intelligent Key system’s operating range
becomes narrower and may not function
properly.
If the Intelligent Key is within the operating
range, it is possible for anyone, evensomeone who does not carry the Intelligent
Key, to push the ignition switch to start the
hybrid system.
.
The trunk area is not included in the
operating range but the Intelligent Key
may function.
. If the Intelligent Key is placed on the
instrument panel, rear parcel shelf,
inside the glove box or door pocket,
the Intelligent Key may not function.
. If the Intelligent Key is placed near the
door or window outside the vehicle, the
Intelligent Key may function.
CAUTION
When pressing the ignition to the OFF
position, make sure the button is not
pressed twice. This may unintentionally
leave the vehicle in ACC or ON mode. This
may discharge the 12-volt battery.
JVS0266X
PUSH-BUTTON IGNITION SWITCH
OPERATION
When the ignition switch is pushed without
depressing the brake pedal, the ignition
switch position will change as follows:
. Push center once to change to ACC.
. Push center two times to change to ON.
. Push center three times to change to
OFF. (No position illuminates.)
. Push center four times to return to ACC.
. Open or close any door to return to
LOCK during the OFF position.
If the ignition switch is pushed quickly or is
rapidly pushed twice, the hybrid system
Starting and driving5-11

5-12Starting and driving
may not start. If this occurs, put the shift
lever in the“P”(Park) position, and leave
the ignition switch in the “OFF”position for
one minute. Then depress the brake pedal
and push the ignition switch to “ON”.
When the READY to drive indicator light
illuminates, the vehicle can be
driven.
The ignition lock is designed so that the
ignition switch position cannot be switched
to LOCK until the shift lever is moved to the
P (Park) positon.
When the ignition switch cannot be
switched toward the LOCK position, move
the shift lever into the P (Park) position.
PUSH-BUTTON IGNITION SWITCH
POSITIONS
LOCK (Normal parking position)
The ignition switch can only be locked in
this position.
The ignition switch will be unlocked when
it is pushed to the ACC position while
carrying the Intelligent Key.
ACC (Accessories)
This position activates electrical acces-
sories such as the radio, when the hybrid system is not running.
ON (Normal operating position)
This position turns on the ignition system
and electrical accessories.
OFF
The hybrid system can be turned off in this
position.
The ignition lock is designed so that the
ignition switch cannot be switched to the
LOCK position until the shift lever is moved
to the P (Park) position.
CAUTION
Do not leave the vehicle with the push-
button ignition switch in ACC or ON posi-
tions when the hybrid system is not running
for an extended period. This can discharge
the 12-volt battery.
EMERGENCY HYBRID SYSTEM SHUT
OFF
To shut off the hybrid system in an
emergency situation while driving, perform
the following procedure:
.
Rapidly push the push-button ignition
switch 3 consecutive times, in less than
1.5 seconds, or
. Push and hold the push-button ignition
switch for more than 2 seconds.

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

5-18Starting and driving
normal operating condition, have an
INFINITI retailer check the transmission
and repair if necessary.
JVS0188X
Shift lock release
If the 12-volt battery charge is low or
discharged, the shift lever may not be
moved from the P (Park) position even with
the brake pedal depressed and the shift
lever button pushed.
To move the shift lever, perform the
following procedure:
1. Push the ignition switch to the OFF orLOCK position.
2. Apply the parking brake.
3. Remove the shift lock cover
*Ausing a
suitable tool. 4. Push down the shift lock
*Busing
mechanical key as illustrated.
5. Push the shift lever button
*Cand
move the shift lever to N (Neutral)
position
*Dwhile holding down the
shift lock.
If the lever cannot be moved out of P
(Park), have an INFINITI retailer check the
automatic transmission system as soon as
possible.
Adaptive Shift Control (ASC)
The adaptive shift control system automa-
tically operates when the transmission is
in the D (Drive) position and selects an
appropriate gear depending on the road
conditions such as uphill, downhill or
curving roads.
Control on uphill and curving roads:
A low gear is maintained that suits the
degree of the slope or curve to allow
smooth driving with a small number of
shifts.
Control on downhill roads:
The adaptive shift control system shifts to
a low gear that suits the degree of the
slope to reduce the number of times that
the brake must be used.

5-50Starting and driving
JVS0304X
Upper display
BCI system operation
When the shift lever is placed in the R
(Reverse) position, the indicator on the BCI
system key
*1illuminates on the upper
display.
SSD1028
Side indicator light
JVS0307X
Upper display The BCI system operates by detecting the
vehicles and/or objects using either the
radar or sonar sensors.
An approaching vehicle from the side:
If the radar detects an approaching vehicle
from the side, the system chimes a sound
(single beep), the side indicator light on
the side the vehicle approaching from
flashes and a yellow rectangular frame
*A
appears on the upper display.

5-52Starting and driving
JVS0304X
Upper display
The BCI system is turned off temporarily by
touching the BCI system key
*1on the
upper display. The indicator on the BCI ON
key turns off.
When the shift lever is placed in the R
(Reverse) position again, the BCI system is
turned on.
The BCI system automatically turns on
every time the hybrid system is started.
JVS0246X
Turning the BCI system ON/OFF
Perform the following steps to turning the
BCI system on or off.
1. Push the MENU button
*1and touch
[Settings] on the lower display.
2. Touch [Camera/Sonar].
3. Touch [Back-up Collision Intervention] to turn the system ON/OFF.
When the BCI system is turned off by
touching [Back-up Collision Intervention],
the BCI system does not turn on auto-
matically by the following operations:
. When the shift lever is placed in the R (Reverse) position
. When the hybrid system is restarted

FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing, apply
deicer through the key hole. If the lock
becomes frozen, heat the key before
inserting it into the key hole or use the
Intelligent Key system.
ANTIFREEZE
In the winter when it is anticipated that the
outside temperature will drop below 328F
(08C), check antifreeze to assure proper
winter protection. For additional informa-
tion, see“Engine cooling system” (P.8-9).
12-VOLT BATTERY
If the 12-volt battery is not fully charged
during extremely cold weather conditions,
the battery fluid may freeze and damage
the 12-volt battery. To maintain maximum
efficiency, the 12-volt battery should be
checked regularly. For additional informa-
tion, see“12-volt battery” (P.8-17).
DRAINING OF COOLANT WATER
If the vehicle is to be left outside without
antifreeze, drain the cooling system, in-
cluding the engine block. Refill before
operating the vehicle. For details, see
“Engine cooling system” (P.8-9) and“In-
verter cooling system” (P.8-11).
TIRE EQUIPMENT
SUMMER tires have a tread designed to
provide superior performance on dry pave-
ment. However, the performance of these
tires will be substantially reduced in snowy
and icy conditions. If you operate your
vehicle on snowy or icy roads, INFINITI
recommends the use of MUD & SNOW or
ALL SEASON tires on all four wheels.
Consult an INFINITI retailer for the tire
type, size, speed rating and availability
information.
For additional traction on icy roads,
studded tires may be used. However, some
U.S. states and Canadian provinces prohi-
bit their use. Check local, state and
provincial laws before installing studded
tires.
Skid and traction capabilities of studded
snow tires, on wet or dry surfaces, may be
poorer than that of non-studded snow
tires.
Tire chains may be used. For details, see
“Tire chains”(P.8-37) of this manual.
Intelligent All-Wheel Drive (AWD)
models
If you install snow tires, they must also be
the same size, brand, construction and tread pattern on all four wheels.
SPECIAL WINTER EQUIPMENT
It is recommended that the following items
be carried in the vehicle during winter:
.
A scraper and stiff-bristled brush to
remove ice and snow from the windows
and wiper blades.
. A sturdy, flat board to be placed under
the jack to give it firm support.
. A shovel to dig the vehicle out of
snowdrifts.
. Extra window washer fluid to refill the
reservoir tank.
DRIVING ON SNOW OR ICE
WARNING
. Wet ice (328F, 0 8C and freezing rain),
very cold snow or ice can be slick and
very hard to drive on. The vehicle will
have much less traction or “grip”under
these conditions. Try to avoid driving on
wet ice until the road is salted or
sanded.
. Whatever the condition, drive with cau-
tion. Accelerate and slow down with
care. If accelerating or downshifting too
Starting and driving5-113
COLD WEATHER DRIVING

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

8-6Maintenance and do-it-yourself
.Always wear eye protection whenever
you work on your vehicle.
. Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the
ignition key is in the OFF position and
the engine is not running. To avoid
injury, always disconnect the negative
battery cable of the 12-volt battery
before working near the fan.
. If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
. Never get under the vehicle while it is
supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
. Keep smoking materials, flame and
sparks away from the fuel tank and the
12-volt battery.
CAUTION
.Do not work under the hood while the
engine is hot. Turn the hybrid system off
and wait until it cools down. .
Avoid direct contact with used engine oil
and coolant. Improperly disposed engine
oil, coolant, and/or other vehicle fluids
can damage the environment. Always
conform to local regulations for disposal
of vehicle fluid.
. Never leave the engine or the transmis-
sion related component harness connec-
tor disconnected while the ignition
switch is in the ON position.
. Never connect or disconnect the 12-volt
battery or any transistorized component
while the ignition switch is in the ON
position.
This “8. Maintenance and do-it-yourself”
section gives instructions regarding only
those items which are relatively easy for an
owner to perform.
A genuine INFINITI Service Manual is also
available. (See “Owner’s Manual/Service
Manual order information” (P.9-23).)
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and
could affect your warranty coverage. If in
doubt about any servicing, we recommend
that it be done by an INFINITI retailer.