engine INFINITI QX50 2014 Repair Manual

5-18Starting and driving
Control on downhill roads:
The adaptive shift control system shifts to
a low gear that suits the degree of the
slope, and uses the engine braking to
reduce the number of times that the brake
must be used.
Control on winding roads:
A low gear is maintained on continuous
curves that involve repeated acceleration
and deceleration, so that smooth accelera-
tion is available instantly when the accel-
erator pedal is depressed.
NOTE:
.Adaptive shift control may not operate
when the transmission oil temperature
is low immediately after the start of
driving or when it is very hot.
. During some driving situations, hard
braking for example, the adaptive shift
control may automatically operate. The
transmission may automatically shift
to a lower gear for engine braking. This
increases engine speed but not vehicle
speed. Vehicle speed is controlled by
the accelerator pedal when the vehicle
is in the Adaptive shift control mode.
. When the adaptive shift control oper-
ates, the transmission sometimes maintains a lower gear for a longer
period of time than when adaptive shift
control is not operating. Engine speed
will be higher for a specific vehicle
speed while ASC system is operating
than when ASC is not operating.WARNING
.
Be sure the parking brake is fully
released before driving. Failure to do so
can cause brake failure and lead to an
accident.
. Do not release the parking brake from
outside the vehicle.
. Do not use the gear shift in place of the
parking brake. When parking, be sure
the parking brake is fully engaged.
. Do not leave children unattended in a
vehicle. They could release the parking
brake and cause an accident.
PARKING BRAKE

5-20Starting and driving
The LDW and LDP systems monitor the lane
markers on the traveling lane using the
camera unit
*1located inside the front
map light cover. When the camera unit
detects that the vehicle is traveling close to
either the left or the right of the traveling
lane, the lane departure warning light
*2
on the instrument panel blinks in orange
and a warning chime sounds. When the
LDP system is on, it will automatically
apply the brakes for a short period of time,
using the function of the Vehicle Dynamic
Control (VDC) system.
To turn on the LDW system, push the
warning systems switch
*3. The warning
systems ON indicator light
*4on the
switch will illuminate.
To turn on the LDP system, push the
dynamic driver assistance switch
*5. The
LDP ON indicator light
*2will illuminate in
green.
LANE DEPARTURE WARNING (LDW)
SYSTEM
Precautions on LDW system
WARNING
. This system is only a warning device to
inform the driver of a potential unin-
tended lane departure. It will not steer
the vehicle or prevent loss of control. It
is the driver’ s responsibility to stay
alert, drive safely, keep the vehicle in
the traveling lane, and be in control of
the vehicle at all times.
. The system will not operate at speeds
below approximately 45 MPH (70 km/h)
or if it cannot detect lane markers.
. If the LDW system malfunctions, it will
cancel automatically, and the lane de-
parture warning light (orange) will illu-
minate.
. If the lane departure warning light
(orange) illuminates, pull off the road
to a safe location and stop the vehicle.
Turn the engine off and restart the
engine. If the lane departure warning
light (orange) continues to illuminate, have the system checked by an INFINITI
retailer.
. Excessive noise will interfere with the
warning chime sound, and the chime
may not be heard.The system may not function properly
under the following conditions:
.On roads where there are multiple
parallel lane markers; lane markers
that are faded or not painted clearly;
yellow painted lane markers; non-stan-
dard lane markers; or lane markers
covered with water, dirt, snow, etc.
. On roads where the discontinued lane
markers are still detectable.
. On roads where there are sharp curves.
. On roads where there are sharply
contrasting objects, such as shadows,
snow, water, wheel ruts, seams or lines
remaining after road repairs. (The LDW
system could detect these items as
lane markers.)
. On roads where the traveling lane
merges or separates.
. When the vehicle’s traveling direction
does not align with the lane marker.

—When driving without normal tireconditions (for example, tire wear,
low tire pressure, installation of
spare tire, tire chains, non-standard
wheels).
—When the vehicle is equipped with
nonoriginal brake parts or suspen-
sion parts.
. If the LDP system malfunctions, it will
cancel automatically. The lane departure
warning light (orange) on the instrument
panel will illuminate.
. If the lane departure warning light
(orange) illuminates, pull off the road
to a safe location and stop the vehicle.
Turn the engine off and restart the
engine. If the warning light (orange)
continues to illuminate, have the LDP
system checked by an INFINITI retailer.
. Excessive noise will interfere with the
warning chime sound, and the chime
may not be heard.
The functions of the LDP system (warning
and brake control assist) may or may not
operate properly under the following con-
ditions: .
On roads where there are multiple
parallel lane markers; lane markers
that are faded or not painted clearly;
yellow painted lane markers; non-stan-
dard lane markers; or lane markers
covered with water, dirt, snow, etc.
. On roads where discontinued lane
markers are still detectable.
. On roads where there are sharp curves.
. On roads where there are sharply
contrasting objects, such as shadows,
snow, water, wheel ruts, seams or lines
remaining after road repairs. (The LDP
system could detect these items as
lane markers.)
. On roads where the traveling lane
merges or separates.
. When the vehicle’s traveling direction
does not align with the lane marker.
. When traveling close to the vehicle in
front of you, which obstructs the lane
camera unit detection range.
. When rain, snow or dirt adheres to the
windshield in front of the lane camera
unit.
. When the headlights are not bright due
to dirt on the lens or if the aiming is not
adjusted properly. .
When strong light enters the lane
camera unit. (For example, the light
directly shines on the front of the
vehicle at sunrise or sunset.)
. When a sudden change in brightness
occurs. (For example, when the vehicle
enters or exits a tunnel or under a
bridge.)
While the LDP system is operating, you
may hear a sound of brake operation. This
is normal and indicates that the LDP
system is operating properly.
Starting and driving5-23

5-24Starting and driving
SSD0672
LDP ON indicator light (green)/ Warninglight (orange)
LDP system operation
The LDP system provides a lane departure
warning and brake control assistance when
the vehicle is driven at speeds of approxi-
mately 45 MPH (70 km/h) and above.
When the vehicle approaches either the left
or the right side of the traveling lane, a
warning chime will sound and the lane
departure warning light (orange) on the
instrument panel will blink to alert the
driver. Then, the LDP system will automa-
tically apply the brakes for a short period
of time to help assist the driver to return the vehicle to the center of the traveling
lane.
The warning and assist functions will stop
when the vehicle returns to a position
inside of the lane marker.
SSD0898
Dynamic driver assistance switch
The LDP system turns on when you push
the dynamic driver assistance switch on
the steering wheel after starting the
engine. The LDP ON indicator light (green)
on the instrument panel will illuminate.
Push the dynamic driver assistance switch
again to turn off the LDP system. The LDP
ON indicator light will turn off.

SSD1086
BSW indicator light
SSD1156
Warning systems switch
SSD1029
BSW system warning light
BSW SYSTEM OPERATION
If the radar sensors detect a vehicle in the
detection zone, the BSW indicator light
next to the outside mirror will illuminate in
the direction of the detected vehicle. If the
turn signal is then activated, the BSW
indicator light flashes and a chime sounds
twice. The indicator light continues to flash
until the detected vehicle leaves the
detection zone.
The BSW indicator lights illuminate for a
few seconds when the ignition switch is
pushed to the ON position.The brightness of the BSW indicator lights
is adjusted automatically depending on the
brightness of the ambient light.
A chime sounds if the radar sensors have
already detected vehicles when the driver
activates the turn signal. If a vehicle comes
into the detection zone after the driver
activates the turn signal, then only the
BSW indicator light flashes and no chime
sounds. (See
“BSW driving situations” (P.5-
30).)
The BSW system is automatically turned on
when the engine is started and the warning
systems ON indicator light
*1illuminates
on the switch. You can turn the BSW system
off by pushing the warning systems switch
on the instrumental panel. This switch will
turn on and off the LDW, BSW and FCW
systems at the same time.
NOTE:
If you continue to push the warning
systems switch from off to on for over 4
seconds, a chime will sound. This will
change the default status of the LDW, BSW
and FCW systems to OFF so that these
systems will not automatically turn on
when the engine is started. If this proce-
dure is repeated, the default status will
Starting and driving5-29

SSD1037
Entering from the side
The BSW indicator light illuminates if a
vehicle enters the detection zone from
either side.
NOTE:
The radar sensors may not detect a vehicle
which is traveling at about the same speed
as your vehicle when it enters the detec-
tion zone.
SSD1038
If the driver activates the turn signal, then
the BSW indicator light flashes and a
chime will sound twice.
NOTE:
If the driver activates the turn signal
before a vehicle enters the detection zone,
the BSW indicator light will flash but no
chime will sound when another vehicle is
detected.
BSW temporarily not available
When radar blockage is detected, the BSW
system will be turned off automatically, a
beep will sound and the BSW system
warning light will blink. The BSW systemis not available until the condition no
longer exists.
The radar sensors may be blocked by
temporary ambient conditions such as
splashing water, mist or fog. The blocked
condition may also be caused by objects
such as ice, frost or dirt obstructing the
radar sensors.
Action to take:
When the above condition no longer exists,
the BSW system will resume automatically.
If the warning light continues to blink, have
the BSW system checked by an INFINITI
retailer.
BSW MALFUNCTION
When the BSW system malfunctions, it will
be turned off automatically, a beep will
sound and the BSW system warning light
will illuminate.
Action to take:
Stop the vehicle in a safe location, turn the
engine off and restart the engine.
If the warning light continues to illuminate,
have the BSW system checked by an
INFINITI retailer.
Starting and driving5-33

5-34Starting and driving
SSD1155
SYSTEM MAINTENANCE
The two radar sensor units*Afor the BSW
system are located near the rear bumper.
Always keep the area near the radar
sensors clean. Do not attach stickers
(including transparent material), install
accessories or apply additional paint near
the radar sensors. Do not strike or damage
the area around the radar sensors. Consult
an INFINITI retailer if the area around the
radar sensors is damaged due to a
collision.
Radio frequency statement
This device complies with part 15 of the
FCC Rules and RSS-310 of Industry Canada.
Operation is subject to the following two
conditions:
1. This device may not cause harmful interference.
2. This device must accept any interfer- ence received, including interference
that may cause undesired operation.
Frequency of operation: 24.05GHz —
24.25GHz
Field Strength: Not greater than 2.5V/m
peak (0.25V/m average) at a distance of 3
m
The manufacturer is not responsible for
any radio or TV interference caused by
unauthorized modifications to this equip-
ment. Such modifications could void the
user’s authority to operate the equipment.
PRECAUTIONS ON CRUISE CONTROL
. If the cruise control system malfunc-
tions, it will cancel automatically. The
SET indicator on the dot matrix liquid
crystal display will then blink to warn
the driver.
. If the engine coolant temperature be-
comes excessively high, the cruise
control system will be canceled auto-
matically.
. If the SET indicator blinks, turn the
cruise control main switch off and have
the system checked by your INFINITI
retailer.
. The SET indicator may sometimes blink
when the cruise control main switch is
turned ON while pushing the ACCELER-
ATE/RESUME, COAST/SET or CANCEL
switch. To properly set the cruise
control system, perform the steps
below in the order indicated.
WARNING
Do not use the cruise control when driving
under the following conditions:
. when it is not possible to keep the
vehicle at a set speed
CRUISE CONTROL

4. Indicates your vehicle
5. Set vehicle speed indicator:Indicates the set vehicle speed.
For Canadian models, the speed is
displayed in km/h.
6. Intelligent Cruise Control system warn- ing light (orange):
The light comes on if there is a
malfunction in the ICC system.
SSD0607
When the ignition switch is pushed to the
ON position, the indicators come on as
illustrated to check for a burned-out bulb,
and it turns off when the engine is started.
SSD0901
Operating vehicle-to-vehicle dis-
tance control mode
To turn on the cruise control, quickly push
and release the MAIN switch
*Aon. The
cruise indicator light, set distance indicator
and set vehicle speed indicator come on
and in a standby state for setting.
Starting and driving5-45

SSD0613B
.The distance to the vehicle ahead will
change according to the vehicle speed.
The higher the vehicle speed, the
longer the distance.
. If the engine is stopped, the set
distance becomes “long”. (Each time
the engine is started, the initial setting becomes
“long”.)
Approach warning
If your vehicle comes closer to the vehicle
ahead due to rapid deceleration of that
vehicle or if another vehicle cuts in, the
system warns the driver with the chime and ICC system display. Decelerate by
depressing the brake pedal to maintain a
safe vehicle distance if:
.
The chime sounds.
. The vehicle ahead detection and set
distance indicator blink.
The warning chime may not sound in some
cases when there is a short distance
between vehicles. Some examples are:
. When the vehicles are traveling at the
same speed and the distance between
vehicles is not changing
. When the vehicle ahead is traveling
faster and the distance between vehi-
cles is increasing
. When the accelerator pedal is de-
pressed, overriding the system
. When a vehicle cuts in near your vehicle
The warning chime will not sound when
your vehicle approaches vehicles that are
parked or moving slowly.
Starting and driving5-51

SSD0614
Warning light and display
Condition A:
Under the following conditions, the Intelli-
gent Cruise Control system is automatically
canceled. The chime will sound and the
system will not be able to be set.
.When the VDC system is turned off
. When the VDC or ABS (including the
traction control system) operates
. When a tire slips
. When the SNOW mode switch is turned
ON
. When driving into a strong light (for
example, sunlight) Action to take:
When the conditions listed above are no
longer present, turn the system off using
the Intelligent Cruise Control MAIN Switch.
Turn the ICC system back on to use the
system.
SSD0615
Condition B:
When the sensor window is dirty, making it
impossible to detect a vehicle ahead, the
ICC system is automatically canceled.
The chime sounds and the system warning
light (orange) will come on and the “CLEAN
SENSOR” indicator will appear.
Action to take:
If the warning light comes on, park the
vehicle in a safe place, turn the engine off.
Clean the sensor window with a soft cloth
and then perform the settings again.
Starting and driving5-53