engine INFINITI Q50 2014 Owner's Guide

3-22Pre-driving checks and adjustments
.Push the power door lock switch to the
UNLOCK position.
To lock, close the fuel-filler door securely
and lock all doors by operating the door
handle request switch, the LOCK button on
the Intelligent Key, the mechanical key or
the power door lock switch.
FUEL-FILLER CAP
WARNING
. Gasoline is extremely flammable and
highly explosive under certain condi-
tions. You could be burned or seriously
injured if it is misused or mishandled.
Always stop engine and do not smoke or
allow open flames or sparks near the
vehicle when refueling.
. Do not attempt to top off the fuel tank
after the fuel pump nozzle shuts off
automatically. Continued refueling may
cause fuel overflow, resulting in fuel
spray and possibly a fire.
. Use only an original equipment type
fuel-filler cap as a replacement. It has a
built-in safety valve needed for proper
operation of the fuel system and emis-
sion control system. An incorrect cap can result in a serious malfunction and
possible injury. It could also cause the
Malfunction Indicator Light (MIL) to
come on.
. Never pour fuel into the throttle body to
attempt to start your vehicle.
. Do not fill a portable fuel container in
the vehicle or trailer. Static electricity
can cause an explosion of flammable
liquid, vapor or gas in any vehicle or
trailer. To reduce the risk of serious
injury or death when filling portable fuel
containers:
—Always place the container on the
ground when filling.
—Do not use electronic devices whenfilling.
—Keep the pump nozzle in contact
with the container while you are
filling it.
—Use only approved portable fuelcontainers for flammable liquid.
CAUTION
. If fuel is spilled on the vehicle body,
flush it away with water to avoid paint
damage.
. Insert the cap straight into the fuel-filler
tube, then tighten the fuel-filler cap until
a single click is heard. Failure to tighten
the fuel-filler cap properly may cause the
Malfunction Indicator Light (MIL) to
illuminate. If thelight illuminates
because the fuel-filler cap is loose or
missing, tighten or install the cap and
continue to drive the vehicle. The
light should turn off after a few driving
trips. If thelight does not turn off
after a few driving trips, have the vehicle
inspected by an INFINITI retailer.
. The Loose Fuel Cap warning will appear
if the fuel-filler cap is not properly
tightened. It may take a few driving
trips for the warning to be displayed.
Failure to tighten the fuel-filler cap
properly after the Loose Fuel Cap warn-
ing appears may cause the
Mal-
function Indicator Light (MIL) to
illuminate.

5 Starting and driving
Precautions when starting and driving ................. 5-3Exhaust gas (carbon monoxide) ....................... 5-3
Three-way catalyst........................................... 5-4
Tire Pressure Monitoring System (TPMS).......... 5-4
Avoiding collision and rollover......................... 5-8
Off-road recovery............................................. 5-8
Rapid air pressure loss ................................... 5-9
Drinking alcohol/drugs and driving ................. 5-9
Intelligent All-Wheel Drive (AWD) driving safety
precautions (AWD models)............................. 5-10
Push-button ignition switch ............................... 5-10 Operating range for engine start function ...... 5-11
Push-button ignition switch operation ........... 5-11
Push-button ignition switch positions ............ 5-12
Emergency engine shut off ............................ 5-12
Intelligent Key battery discharge ................... 5-13
Before starting the engine ................................. 5-13
Starting the engine ............................................ 5-14
Driving the vehicle ............................................. 5-15 Automatic transmission ................................. 5-15
Parking brake .................................................... 5-20
INFINITI Drive Mode Selector .............................. 5-21 STANDARD mode ........................................... 5-21
SPORT mode ................................................. 5-22
SNOW mode .................................................. 5-22 ECO mode.................................................... 5-22
PERSONAL mode .......................................... 5-23
Active Lane Control (if so equipped) .................. 5-24
Precautions on Active Lane Control .............. 5-26
Active Lane Control operation ...................... 5-27
Automatic deactivation................................. 5-29
Lane camera unit maintenance .................... 5-29
Lane Departure Warning (LDW) system/Lane
Departure Prevention (LDP) system (if
so equipped)..................................................... 5-30
Lane Departure Warning (LDW) system......... 5-31
Lane Departure Prevention (LDP) system ...... 5-33
Lane camera unit maintenance .................... 5-36
Blind Spot Warning/Blind Spot Intervention
TM/
Back-up Collision Intervention systems (if
so equipped)..................................................... 5-37
Blind Spot Warning (BSW) system/Blind Spot
Intervention
TM(BSI) system.......................... 5-37
BSW/BSI driving situations .......................... 5-43
Back-up Collision Intervention
(BCI) system ................................................ 5-48
System maintenance.................................... 5-55
Cruise control (if so equipped) .......................... 5-56
Precautions on cruise control....................... 5-56
Cruise control operations ............................. 5-57

Intelligent Cruise Control (ICC) system (if
so equipped) ..................................................... 5-58Selecting the vehicle-to-vehicle distance
control mode ................................................. 5-59
Vehicle-to-vehicle distance control mode ....... 5-59
Precautions on vehicle-to-vehicle distance
control mode ................................................. 5-60
Vehicle-to-vehicle distance control
mode operation ............................................. 5-61
Conventional (fixed speed) cruise
control mode ................................................. 5-74
Distance Control Assist (DCA) system (if
so equipped) ..................................................... 5-79 Precautions on DCA system ........................... 5-79
DCA system operation ................................... 5-81
Forward emergency braking system (if
so equipped) ..................................................... 5-89 System operation .......................................... 5-90
Predictive forward collision warning system (if
so equipped) ..................................................... 5-94 System operation .......................................... 5-95
Break-in schedule .............................................. 5-99
Fuel Efficient Driving Tips................................... 5-99
Increasing fuel economy .................................. 5-100
Intelligent All-Wheel Drive (AWD) (if
so equipped) ................................................... 5-101 Parking/parking on hills.................................. 5-103
Power steering ................................................ 5-104
Hydraulic power steering type.................... 5-104
Direct Adaptive Steering type..................... 5-104
Brake system .................................................. 5-106 Braking precautions ................................... 5-106
Parking brake break-in............................... 5-106
Brake assist .................................................... 5-107
Brake assist............................................... 5-107
Anti-lock Braking System (ABS) .................. 5-107
Vehicle Dynamic Control (VDC) system ............ 5-108
Brake force distribution ............................. 5-109
Active trace control ......................................... 5-110
Hill Start Assist system ................................... 5-111
Chassis control ............................................... 5-112
Cold weather driving ....................................... 5-112 Freeing a frozen door lock ......................... 5-112
Antifreeze .................................................. 5-112
Battery....................................................... 5-112
Draining of coolant water........................... 5-112
Tire equipment .......................................... 5-112
Special winter equipment .......................... 5-113
Driving on snow or ice ............................... 5-113
Engine block heater (if so equipped).......... 5-113

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 engine
running 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 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

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 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.
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 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 retailer. Even if the tire is
inflated to the specified COLD tire pres-
sure, the warning light will continue to

TPMS and cause the low tire pressure
warning light to illuminate. Some exam-
ples are:
.Facilities or electric devices using simi-
lar radio frequencies are near the
vehicle.
. If a transmitter set to similar frequen-
cies is being used in or near the
vehicle.
. If a computer (or similar equipment) or
a DC/AC converter is being used in or
near the vehicle.
FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any interfer-
ence received, including interference
that may cause undesired operation.
NOTE:
Changes or modification not expressly
approved by the party responsible for
compliance could void the user’ s
authority to operate the equipment. For Canada:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1.
This device may not cause interference,
and
2. This device must accept any interfer-
ence, include interference that may
cause undesired operation of the de-
vice.
TPMS with Tire Inflation Indicator
When adding air to an under-inflated tire,
the TPMS with Tire Inflation Indicator
provides visual and audible signals out-
side the vehicle to help you inflate the tires
to the recommended COLD tire pressure.
Vehicle set-up:
1. Park the vehicle in a safe and level
place.
2. Apply the parking brake and place the shift lever in the P (Park) position.
3. Place the ignition switch in the ON position. Do not start the engine.
Operation:
1. Add air to the tire. 2. After a few seconds, the hazard indica-
tors will start flashing.
3. When the designated pressure is reached, the horn beeps once and the
hazard indicators stop flashing.
4. Perform the above steps for each tire.
. If the tire is over-inflated more than
approximately 4 psi (30 kPa), the horn
beeps and the hazard indicators flash 3
times. To correct the pressure, push the
core of the valve stem on the tire briefly
to release pressure. When the pressure
reaches the designated pressure, the
horn beeps once.
. If the hazard indicator does not flash
within approximately 15 seconds after
starting to inflate the tire, it indicates
that the Tire Inflation Indicator is not
operating.
. The TPMS will not activate the Tire
Inflation Indicator under the following
conditions:
— If there is interference from an
external device or transmitter
— The air pressure from the inflation
device such as those using a power
socket is not sufficient to inflate the
tire
Starting and driving5-7

5-10Starting and driving
Don’t drive if your ability to operate your
vehicle is impaired by alcohol, drugs, or
some other physical condition.
INTELLIGENT ALL-WHEEL DRIVE
(AWD) DRIVING SAFETY PRECAU-
TIONS (AWD models)
WARNING
.Do not drive beyond the performance
capability of the tires, even with Intelli-
gent AWD engaged. Accelerating quickly,
sharp steering maneuvers or sudden
braking may cause loss of control.
. Always use tires of the same type, size,
brand, construction (bias, bias-belted or
radial), and tread pattern on all four
wheels. Install tire chains on the rear
wheels when driving on slippery roads
and drive carefully.
. This vehicle is not designed for off-road
(rough road) use. Do not drive on sandy
or muddy roads that tires may get stuck
in.
. For AWD equipped vehicles, do not
attempt to raise two wheels off the
ground and shift the transmission to any D (Drive) or R (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 an AWD equipped
vehicle on a 2-wheel dynamometer (such
as the dynamometers used by some
states for emissions testing), or similar
equipment even if the other two wheels
are raised off the ground. Make sure you
inform test facility personnel that your
vehicle is equipped with AWD before it is
placed on a dynamometer. Using the
wrong test equipment may result in
drivetrain damage or unexpected vehicle
movement which could result in serious
vehicle damage or personal injury.
. When a wheel is off the ground due to an
unlevel surface, do not spin the wheel
excessively.
WARNING
Do not operate the push-button ignition
switch while driving the vehicle except in an
emergency. (The engine will stop when the
ignition switch is pushed 3 consecutive
times or the ignition switch is pushed and
held for more than 2 seconds.) If the engine
stops while the vehicle is being driven, this
could lead to a crash and serious injury.
Before operating the push-button ignition
switch, be sure to move the shift lever to
the P (Park) position.
PUSH-BUTTON IGNITION SWITCH

SSD0659
OPERATING RANGE FOR ENGINE
START FUNCTION
The Intelligent Key can only be used for
starting the engine 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, even
someone who does not carry the IntelligentKey, to push the ignition switch to start the
engine.
.
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.
JVS0241X
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.
Starting and driving5-11

5-12Starting and driving
If the battery of the vehicle is discharged,
the push-button ignition switch cannot be
turned from the LOCK position.
Some indicators and warnings for opera-
tion are displayed in the vehicle informa-
tion display between the speedometer and
tachometer. (See“Vehicle information dis-
play” (P.2-20).)
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) position.
When the ignition switch cannot be pushed
toward the LOCK position, proceed as
follows:
1. Move the shift lever into the P (Park) position.
2. Push the ignition switch to the OFF position. The ignition switch position
indicator will not illuminate.
3. Open the door. The ignition switch will change to the LOCK position.
The shift lever can be moved from the P
(Park) position if the ignition switch is in
the ON position and the brake pedal is
depressed.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 engine
is not running.
ON (Normal operating position)
This position turns on the ignition system
and electrical accessories.
OFF
The engine 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 engine is not running for an
extended period. This can discharge the
battery.
EMERGENCY ENGINE SHUT OFF
To shut off the engine in an emergency
situation while driving, perform the follow-
ing 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 engine 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 engine 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 engine is
started by the above procedures, the
Intelligent Key battery discharge indi-
cator appears in the vehicle informa-
tion display even if the Intelligent Key
is inside the vehicle. This is not a
malfunction. To turn off the Intelligent
Key battery discharge indicator, 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.8-24).).
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 ENGINE