brake INFINITI Q50 2014 User Guide

2-40Instruments and controls
JVI0670X
Ambient image sensor maintenance:
The ambient image sensor
*1for the high
beam assist system is located in front of
the inside mirror. To keep the proper
operation of the high beam assist system
and prevent a system malfunction, be sure
to observe the following:
. Always keep the windshield clean.
. Do not attach a sticker (including
transparent material) or install an
accessory near the ambient image
sensor.
. Do not strike or damage the areas
around the ambient image sensor. Do
not touch the sensor lens that is located on the ambient image sensor.
If the ambient image sensor is damaged
due to an accident, contact an INFINITI
retailer.
Battery saver system
A chime will sound and the light reminder
warning will appear in the vehicle informa-
tion display when the driver side door is
opened with the light switch in the
orposition and the ignition switch in the
ACC, OFF or LOCK position.
When the headlight switch is in the
orposition while the ignition switch is in
the ON position, the lights will automati-
cally turn off after a period of time when
the ignition switch has been pushed to the
OFF position.
When the headlight switch remains in the
orposition after the lights
automatically turn off, the lights will turn
on when the ignition switch is pushed to
the ON position.
CAUTION
. When you turn on the headlight switch
again after the lights automatically turn off, the lights will not turn off auto-
matically. Be sure to turn the light
switch to the OFF position when you
leave the vehicle for extended periods of
time, otherwise the battery will be
discharged.
. Never leave the light switch on when the
engine is not running for a period of time
even if the headlights turn off automa-
tically.
Daytime running light system
The daytime running lights automatically
illuminate when the engine is started with
the parking brake released. The daytime
running lights operate with the headlight
switch in the OFF, AUTO or
position.
Turn the headlight switch to the
position for full illumination when driving
at night.
If the parking brake is applied before the
engine is started, the daytime running
lights do not illuminate. The daytime
running lights illuminate once the parking
brake is released. The daytime running
lights will remain on until the ignition
switch is pushed to the OFF position.

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

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

5-8Starting and driving
—If an electrical equipment is being
used in or near the vehicle
— There is a malfunction in the TPMS
system
— There is a malfunction in the horn or
hazard indicators
. If the Tire Inflation Indicator does not
operate due to TPMS interference,
move the vehicle about 3 ft (1 m)
backward or forward and try again.
If the Tire Inflation Indicator is not working,
use a tire pressure gauge.
AVOIDING COLLISION AND ROLL-
OVER
WARNING
Failure to operate this vehicle in a safe and
prudent manner may result in loss of control
or an accident.
Be alert and drive defensively at all times.
Obey all traffic regulations. Avoid exces-
sive speed, high speed cornering, or
sudden steering maneuvers, because
these driving practices could cause you to
lose control of your vehicle. As with any
vehicle, a loss of control could result in a collision with other vehicles or objects, or
cause the vehicle to rollover, particularly if
the loss of control causes the vehicle to
slide sideways.
Be attentive at all times,
and avoid driving when tired. Never drive
when under the influence of alcohol or
drugs (including prescription or over-the-
counter drugs which may cause drowsi-
ness). Always wear your seat belt as
outlined in the “Seat belts”(P.1-12) of this
manual, and also instruct your passengers
to do so.
Seat belts help reduce the risk of injury in
collisions and rollovers. In a rollover crash,
an unbelted or improperly belted person is
significantly more likely to be injured or
killed than a person properly wearing a
seat belt.
OFF-ROAD RECOVERY
If driving the right side or left side wheels
may unintentionally leave the road surface.
Maintain control of the vehicle by following
the procedure below. Please note that this
procedure is only a general guide. The
vehicle must be driven as appropriate
based on the conditions of the vehicle,
road and traffic.
1. Remain calm and do not overreact. 2. Do not apply the brakes.
3. Maintain a firm grip on the steering
wheel with both hands and try to hold a
straight course.
4. When appropriate, slowly release the accelerator pedal to gradually slow the
vehicle.
5. If there is nothing in the way, steer the vehicle to follow the road while the
vehicle speed is reduced. Do not
attempt to drive the vehicle back onto
the road surface until vehicle speed is
reduced.
6. When it is safe to do so, gradually turn the steering wheel until both tires
return to the road surface. When all
tires are on the road surface, steer the
vehicle to stay in the appropriate
driving lane..If you decide that it is not safe toreturn the vehicle to the road surface
based on vehicle, road or traffic
conditions, gradually slow the vehi-
cle to a stop in a safe place off the
road.

RAPID AIR PRESSURE LOSS
Rapid air pressure loss or a“blow-out”can
occur if the tire is punctured or is damaged
due to hitting a curb or pothole. Rapid air
pressure loss can also be caused by
driving on under-inflated tires.
Rapid air pressure loss can affect the
handling and stability of the vehicle,
especially at highway speeds.
Help prevent rapid air pressure loss by
maintaining the correct air pressure and
visually inspect the tires for wear and
damage. See “Wheels and tires” (P.8-29) of
this manual.
If a tire rapidly loses air pressure or
“blows-out” while driving maintain control
of the vehicle by following the procedure
below. Please note that this procedure is
only a general guide. The vehicle must be
driven as appropriate based on the condi-
tions of the vehicle, road and traffic.
WARNING
The following actions can increase the
chance of losing control of the vehicle if
there is a sudden loss of tire air pressure.
Losing control of the vehicle may cause a collision and result in personal injury.
.
The vehicle generally moves or pulls in
the direction of the flat tire.
. Do not rapidly apply the brakes.
. Do not rapidly release the accelerator
pedal.
. Do not rapidly turn the steering wheel.
1. Remain calm and do not overreact.
2. Maintain a firm grip on the steering
wheel with both hands and try to hold a
straight course.
3. When appropriate, slowly release the accelerator pedal to gradually slow the
vehicle.
4. Gradually steer the vehicle to a safe location off the road and away from
traffic if possible.
5. Lightly apply the brake pedal to gradu- ally stop the vehicle.
6. Turn on the hazard warning flashers and either contact a roadside emer-
gency service to change the tire or see
“Changing a flat tire” (P.6-4) of this
Owner’s Manual.
DRINKING ALCOHOL/DRUGS AND
DRIVING
WARNING
Never drive under the influence of alcohol or
drugs. Alcohol in the bloodstream reduces
coordination, delays reaction time and im-
pairs judgement. Driving after drinking
alcohol increases the likelihood of being
involved in an accident injuring yourself and
others. Additionally, if you are injured in an
accident, alcohol can increase the severity
of the injury.
INFINITI is committed to safe driving.
However, you must choose not to drive
under the influence of alcohol. Every year
thousands of people are injured or killed in
alcohol-related accidents. Although the
local laws vary on what is considered to
be legally intoxicated, the fact is that
alcohol affects all people differently and
most people underestimate the effects of
alcohol.
Remember, drinking and driving don ’t mix!
And that is true for drugs, too (over-the-
counter, prescription, and illegal drugs).
Starting and driving5-9

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

5-14Starting and driving
1. Apply the parking brake.
2. Move the shift lever to the P (Park) or N(Neutral) position. (P is recommended.)
The starter is designed not to operate
unless the shift lever is in either of the
above positions.
3. Push the ignition switch to the ON position. Depress the brake pedal and
push the ignition switch to start the
engine.
To start the engine immediately, push
and release the ignition switch while
depressing the brake pedal with the
ignition switch in any position.
.If the engine is very hard to start inextremely cold weather or when
restarting, depress the accelerator
pedal a little (approximately 1/3 to
the floor) and while holding, crank
the engine. Release the accelerator
pedal when the engine starts.
.If the engine is very hard to startbecause it is flooded, depress the
accelerator pedal all the way to the
floor and hold it. Push the ignition
switch to the ON position to start
cranking the engine. After 5 or 6
seconds, stop cranking by pushing
the ignition switch to OFF. After cranking the engine, release the
accelerator pedal. Crank the engine
with your foot off the accelerator
pedal
by depressing the brake pedal
and pushing the push-button igni-
tion switch to start the engine. If the
engine starts, but fails to run, repeat
the above procedure.
CAUTION
Do not operate the starter for more than 15
seconds at a time. If the engine does not
start, push the ignition switch to OFF and
wait 10 seconds before cranking again,
otherwise the starter could be damaged.
4. Warm-up
Allow the engine to idle for at least 30
seconds after starting. Do not race the
engine while warming it up. Drive at
moderate speed for a short distance
first, especially in cold weather. In cold
weather, keep the engine running for a
minimum of 2 - 3 minutes before
shutting it off. Starting and stopping
the engine over a short period of time
may make the vehicle more difficult to
start. When racing the engine up to 4,500
rpm or more under no load condition,
the engine will enter the fuel cut mode.
5. To stop the engine, shift the shift lever to the P (Park) position and push the
ignition switch to the OFF position.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of electro-
nic accessories that consume 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 battery may need to be
charged to maintain battery health.
STARTING THE ENGINE