2014 INFINITI Q50 lane assist

5-30Starting and driving
era unit’s capability of detecting the
lane markers.
. Do not strike or damage the areas
around the camera unit. Do not touch
the camera lens or remove the screw
located on the camera unit. If the
camera unit is damaged due to an
accident, contact an INFINITI retailer. The Lane Departure Warning (LDW) sys-
tem/Lane Departure Prevention (LDP) sys-
tem will operate when the vehicle is driven
at speeds of approximately 45 MPH (70
km/h) and above, and when it is traveling
close to either the left or the right of a
traveling lane.
Each system functions as follows:
.
Lane Departure Warning (LDW) system
— warns the driver by the warning in
the vehicle information display and
chime that the vehicle is beginning to
leave the driving lane.
. Lane Departure Prevention (LDP) system
— warns the driver by the warning in
the vehicle information display and
chime, and helps assist the driver to
return the vehicle to the center direc-
tion of the traveling lane by operating
the steering system to the right or left
(for a short period of time).
JVS0231X
JVS0308X
Driver assist system lane indicator
LANE DEPARTURE WARNING (LDW)
SYSTEM/LANE DEPARTURE PREVENTION
(LDP) SYSTEM (if so equipped)

The LDW and LDP systems monitor the lane
markers on the traveling lane using the
camera unit
*1located above the inside
mirror. When the camera unit detects that
the vehicle is traveling close to either the
left or the right of the traveling lane, the
driver assist system lane indicator (orange)
in the vehicle information display blinks
and a warning chime sounds. When the
LDP system is on, it will automatically
apply a steering operation for a short
period of time.
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 LDW mal-
function message will appear in the
vehicle information display.
. If the LDW malfunction message ap-
pears, pull off the road to a safe location
and stop the vehicle. Turn the engine off
and restart the engine. If the LDW
malfunction message continues to ap-
pear, 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 Lane
Departure Warning (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 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.)
Starting and driving5-31

5-32Starting and driving
JVS0308X
Driver assist system lane indicator
LDW system operation
The LDW system provides a lane departure
warning function when the vehicle is driven
at speeds of approximately 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 driver assist system lane
indicator (orange) in the vehicle informa-
tion display will blink to alert the driver.
The warning function will stop when the
vehicle returns inside of the lane markers.
The LDW system is not designed to warn
under the following conditions..
When you operate the lane change
signal and change traveling lanes in
the direction of the signal. (The LDW
system will become operable again
approximately 2 seconds after the lane
change signal is turned off.)
. When the vehicle speed lowers to less
than approximately 45 MPH (70 km/h).
. When the Blind Spot Intervention
TM
(BSI) system activates an audible warn-
ing or steering control.
After the above conditions have finished
and the necessary operating conditions are
satisfied, the LDW functions will resume.
Temporary disabled status at high
temperature
If the vehicle is parked in direct sunlight
under high temperature conditions (over
approximately 1048 F (408C) and then
started, the LDW system may be deacti-
vated automatically. The high cabin tem-
perature warning message will appear in
the vehicle information display.
When the interior temperature is reduced,
the LDW system will resume operating
automatically.
JVS0246X
Turning the LDW system ON/OFF
Perform the following steps to turn the
LDW system on or off.
1. Push the MENU button
*1and touch
[Driver Assistance] on the lower dis-
play.
2. Touch [Lane Assist].
3. Touch [Lane Departure Warning] to turn the system ON/OFF.

LANE DEPARTURE PREVENTION
(LDP) SYSTEM
Precautions on LDP system
WARNING
.The LDP system will not always steer the
vehicle to keep it in the lane. It is not
designed to 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
vehicle at all times.
. The LDP system is primarily intended for
use on well-developed freeways or high-
ways. It may not detect the lane markers
in certain roads, weather or driving
conditions.
. Using the LDP system under some
conditions of road, lane marker or
weather, or when you change lanes
without using the lane change signal
could lead to an unexpected system
operation. In such conditions, you need
to correct the vehicle’s direction with
your steering operation to avoid acci-
dents. .
When the LDP system is operating, avoid
excessive or sudden steering maneu-
vers. Otherwise, you could lose control
of the vehicle.
. The LDP system will not operate at
speeds below approximately 45 MPH
(70 km/h) or if it cannot detect lane
markers.
. The LDP system may not function
properly under the following conditions,
and do not use the LDP system:
—During bad weather (rain, fog, snow,
wind, etc.).
—When driving on slippery roads,
such as on ice or snow, etc.
—When driving on winding or uneven roads.
—When there is a lane closure due to
road repairs.
—When driving in a makeshift lane.
—When driving on roads where thelane width is too narrow.
—When driving with a tire that is notwithin normal tire conditions (for
example, tire wear, low tire pressure,
installation of spare tire, tire chains, non-standard wheels).
—When the vehicle is equipped with
non-original steering parts or sus-
pension parts.
. If the LDP system malfunctions, it will
cancel automatically. The LDP “malfunc-
tion” message will appear in the vehicle
information display.
. If the “malfunction” message appears,
pull off the road to a safe location and
stop the vehicle. Turn the engine off and
restart the engine. If the “malfunction”
message continues to appear, 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 steering 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; lane markers cov-
Starting and driving5-33

5-34Starting and driving
ered 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.)
JVS0308X
Driver assist system lane indicator
LDP system operation
The LDP system provides a lane departure
warning and steering control assistance
when the vehicle is driven at speeds of
approximately 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
driver assist system lane indicator (orange)
will blink to alert the driver. Then, the LDP
system will automatically apply the steer-
ing 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.
JVS0206X
Dynamic driver assistance switch
The LDP system turns on when the dynamic
driver assistance switch on the steering
wheel is pushed when the [Lane Departure
Prevention] is enabled in the settings menu
on the lower display. The driver assist
system lane indicator (green) illuminates in
the vehicle information display when the
LDP system is turned on.
JVS0246X
How to enable/disable the LDP
system
Perform the following steps to enable or
disable the LDP system.
1. Push the MENU button
*1and touch
[Driver Assistance] on the lower dis-
play.
2. Touch [Lane Assist].
3. Touch [Lane Departure Prevention] to enable or disable the system.
Starting and driving5-35

5-36Starting and driving
Automatic deactivation
Condition A:
The warning and assist functions of the
LDP system are not designed to work under
the following conditions:
.When you operate the lane change
signal and change the traveling lanes
in the direction of the signal. (The LDP
system will be deactivated for approxi-
mately 2 seconds after the lane change
signal is turned off.)
. When the vehicle speed lowers to less
than approximately 45 MPH (70 km/h).
. When the BSI system activates an
audible warning or steering control.
After the above conditions have finished
and the necessary operating conditions are
satisfied, the warning and assist functions
will resume.
Condition B:
The assist function of the LDP system is not
designed to work under the following
conditions (warning is still functional):
. When the steering wheel is turned as
far as necessary for the vehicle to
change lanes. .
When the accelerator pedal is de-
pressed while the steering control
assist is provided.
. When the Intelligent Cruise Control (ICC)
approach warning occurs.
. When the hazard warning flashers are
operated.
. When driving on a curve at high speed.
After the above conditions have finished
and the necessary operating conditions are
satisfied, the LDP steering control assist
function will resume.
Condition C:
Under the following conditions, a beep will
sound and the LDP system will be canceled
automatically. The “LDP currently unavail-
able” message will appear in the vehicle
information display, and the LDP system
cannot be activated:
. When the VDC system (except TCS
function) or ABS operates.
. When the VDC system is turned off.
. When the INFINITI Drive Mode Selector
is turned to the SNOW mode.
Action to take:
When the above conditions no longer exist,
push the dynamic driver assistance switch
again to turn the LDP system back on. Temporary disabled status at high tem-
perature:
If the vehicle is parked in direct sunlight
under high temperature conditions (over
approximately 1048F (408C)) and then the
LDP system is turned on, the LDP system
may be deactivated automatically. The
“ high cabin temperature” message will
appear in the vehicle information display.
Action to take:
When the above conditions no longer exist,
push the dynamic driver assistance switch
again to turn the LDP system back on.
LANE CAMERA UNIT MAINTENANCE
The LDW/LDP system uses the same lane
camera unit that is used by Active Lane
Control, located above the inside mirror.
For maintenance of the camera, see “Lane
camera unit maintenance ”(P.5-29).

5-40Starting and driving
SSD1028
Side indicator light
BSI system operation
If the radar sensors detect vehicles in the
detection zone, the side indicator light
located inside the vehicle (near the outside
mirrors) illuminates. If your vehicle is
approaching a lane marker, the side
indicator light flashes and an audible
warning will sound three times. Then the
system applies the steering for a short
period of time to help return the vehicle
back to the center of the lane. BSI operates
regardless of turn signal usage.NOTE:
.
Warning and steering control will only
be activated if the side indicator light
is already illuminated when your vehi-
cle approaches a lane marker. If
another vehicle comes into the detec-
tion zone after your vehicle has
crossed a lane marker, no warning or
steering control will be activated. (See
“BSW/BSI driving situations” (P.5-43).)
. The BSI system is typically activated
earlier than the Lane Departure Pre-
vention (LDP) system when your vehi-
cle is approaching a lane marker.
JVS0206X
Dynamic driver assistance switch
JVS0309X
Driver assist system blind spot indicator