steering INFINITI Q50 2023 Service Manual

JVS0251X
ACTIVE LANE CONTROL OP-
ERATION
Active Lane Control slightly corrects front
tire angles and steering wheel torque to help
reduce the difference between the vehicle’s
direction and the lane direction
which is
detected by using the camera unitlocated
above the inside mirror.
Active Lane Control operates under the
following conditions:
. When the vehicle is driven at speeds of
approximately 45 MPH (70 km/h) and
above.
. When the Lane Departure Prevention
(LDP) system is enabled in the settings menu on the lower display. To turn on
the LDP system, see “Lane Departure
Warning (LDW)/Lane Departure Pre-
vention (LDP)” (P.5-33).
. When Active Lane Control is enabled in
the settings menu on the display.
Starting and driving5-27

5-28Starting and driving
WAF0324X
/OKswitch
Vehicle information display
Dynamic driver assistance switch
Upper display
Lower display
TURNING ACTIVE LANE CON-
TROL ON/OFF
To turn on Active Lane Control, push the
dynamic driver assistance switch on the
steering wheel after starting the engine.
Push the dynamic driver assistance switch again to turn off Active Lane Control.
The dynamic driver assistance switch is used
for the LDP, Blind Spot Intervention
®(BSI)
and Distance Control Assist (DCA) systems.
When the dynamic driver assistance switch
is pushed, the LDP, BSI and DCA systems
will also turn on or off simultaneously. These
systems can be individually set to on or off
on the lower display.

JVS0248X
The status of Active Lane Control can be
checked in the chassis control display in the
vehicle information display
.
. When Active Lane Control is turned on,
the chassis control
is displayed.
. When Active Lane Control is operating,
the chassis control
is displayed.
For setting of the chassis control display, see
the INFINITI InTouch
TMOwner’s Manual.
HOW TO ENABLE/DISABLE AC-
TIVE LANE CONTROL
Perform the following steps to enable or
disable Active Lane Control. If Type A
setting is not available, perform Type B
setting.
Type A (if so equipped):
1. Push the
/OK switch on the steering
wheel.
2. Touch [TURN ALC ON] or [TURN ALC OFF] on the upper display to enable or
disable Active Lane Control.
Type B (if so equipped):
1. Push the MENU button and touch [Driver Assistance] on the lower display.
2. Touch [Lane Assist].
3. Touch [Active Lane Control] to enable or disable Active Lane Control.
The displayed keys on the display may vary
depending on models, specifications and
software version.
NOTE:
If the Lane Departure Prevention (LDP)
system setting is OFF, Active Lane Control
cannot be operated. To use Active Lane
Control, set the LDP system to ON. See
“How to enable/disable the LDP system”
(P.5-37).
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5-30Starting and driving
Active Lane Control settings
Perform the following steps to set Active
Lane Control.
Type A (if so equipped):
1. Push the MENU button and touch[INFINITI Drive Mode Selector] on the
lower display.
2. Touch [Active Lane Control] and select [Low] or [High] to change the setting of
Active Lane Control.
Type B (if so equipped):
1. Push the MENU button and touch [Driver Assistance] on the lower display.
2. Touch [Lane Assist].
3. Enable [Active Lane Control].
4. Touch [Active Lane Control Setting] and select [Low] or [High] to change the
setting of Active Lane Control.
The displayed keys on the lower display may
vary depending on models, specifications
and software versions.
ACTIVE LANE CONTROL LIM-
ITATIONS
WARNING
Listed below are the limitations for
Active Lane Control. Failure to operate
the vehicle in accordance with these
limitations could result in serious injury
or death.
. Active Lane Control is primarily in-
tended for use on well-developed
freeways or highways. It may not
detect the lane markers for certain
roads, weather or driving conditions.
. Using Active Lane Control under
some conditions of road, lane marker
or weather, or if you attempt to
change lanes without using the lane
change signal could lead to an un-
expected system operation. In such
conditions, you need to correct the
vehicle’s direction with your steering
operation to avoid accidents.
. Active Lane Control will not operate
at speeds below approximately 45
MPH (70 km/h) or if it cannot detect
lane markers.
. Active Lane Control may not operate properly and should not be used
under the following conditions:
— During bad weather (rain, fog, snow, etc.).
— When driving on slippery roads, such as on ice or snow, etc.
— When driving on winding or un- even roads.
— When there is a lane closure due to road repairs.
— When driving in a makeshift lane.
— When driving on roads where the lane width is too narrow.
— When driving with a tire that is not within 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.
. Active Lane Control may or may not
operate properly under the following
conditions:
— On roads where there are multi- ple parallel lane markers; lane
markers that are faded or not
painted clearly; yellow painted

.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. It is recommended
you contact an INFINITI retailer if the
camera unit is damaged due to an
accident.
WARNING
Failure to follow the warnings and
instructions for proper use of the LDW
and LDP systems could result in serious
personal injury or death.
. The LDW and LDP systems will not
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 LDP system may activate if you
change lanes without first activating
your turn signal or, for example, if a
construction zone directs traffic to
cross an existing lane marker. If this
occurs, you may need to apply cor-
rective steering to complete your lane
change.
. Because the LDP system may not
activate under the road, weather,
and lane marker conditions described
in this section, it may not activate
every time your vehicle begins to
leave its lane and you will need to
apply corrective steering. .
Lane Departure Warning (LDW) system
— warns the driver with an indicator in the vehicle information display and
vibrations of the steering wheel that
the vehicle is beginning to leave the
driving lane.
. Lane Departure Prevention (LDP) system
(if so equipped)
— warns the driver with an indicator in the vehicle information display and
vibrations of the steering wheel, and
helps the driver to return the vehicle
to the center of the traveling lane.
Starting and driving5-33
LANE DEPARTURE WARNING
(LDW)/LANE DEPARTURE
PREVENTION (LDP) (if so equipped)

LDW SYSTEM OPERATION
The LDW system operates above approxi-
mately 45 MPH (70 km/h) and when the
lane markings are clear.
If the vehicle approaches either the left or
the right side of the traveling lane, the driver
assist system lane indicator (orange) in the
vehicle information display will blink and the
steering wheel will vibrate.
NOTE:
The LDW system is not designed to warn
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.)
JVS0246X
HOW TO ENABLE/DISABLE THE
LDW SYSTEM
Perform the following steps to enable or
disable the LDW system.
1. Push the MENU button
and touch
[Driver Assistance] on the lower display.
2. Touch [Lane Assist].
3. Touch [Lane Departure Warning] to enable or disable the system.
The displayed keys on the lower display may
vary depending on models, specifications
and software versions.
LDP SYSTEM OPERATION (if so
equipped)
The LDP system operates above approxi-
mately 45 MPH (70 km/h) and when the
lane markings are clear.
If the vehicle approaches either the left or
right side of the traveling lane, the driver
assist system lane indicator (orange) in the
vehicle information display will blink and the
steering wheel will vibrate. Then, the LDP
system will automatically assist the driver to
return the vehicle to the center of the
traveling lane.
NOTE:
. The LDP system is not designed to work
when you operate the lane change signal
and change traveling lanes in the direc-
tion of the signal. (The LDP system will
become operable again approximately 2
seconds after the lane change signal is
turned off.)
. The LDP will not operate or will stop
operating and only the steering wheel
will vibrate under the following condi-
tions.
— When the steering wheel is turned as
far as necessary for the vehicle to
change lanes.
— When the accelerator pedal is de-
pressed.
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5-36Starting and driving
—When the Intelligent Cruise Control
(ICC), Distance Control Assist (DCA),
Blind Spot Intervention (BSI), Blind
Spot Warning (BSW), Predictive For-
ward Collision Warning (PFCW) or
Forward Emergency Braking (FEB)
approach warning occurs.
— When the BSI system activates.
— When the hazard warning flashers
are operated.
— When driving on a curve at a high
speed.
JVS0825X
Dynamic driver assistance switch
Driver assist system lane indicator
(green) (on the vehicle information dis-
play)
Lower display
TURNING THE LDP SYSTEM ON/
OFF (if so equipped)
To turn on the LDP system, push the
dynamic driver assistance switchon the
steering wheel after starting the engine. The
driver assist system lane indicator (green)
in the vehicle information display will illumi-

5-38Starting and driving
— When driving in a makeshift ortemporary lane.
— When driving on roads where the lane width is too narrow.
— When driving without normal tire conditions (for example, tire wear,
low tire pressure, installation of
spare tire, tire chains, non-stan-
dard wheels).
— When the vehicle is equipped with non-original steering parts, brake
parts or suspension parts.
. The camera may not detect lane
markers in the following situations
and the LDW and LDP systems may
not operate properly.
— On roads where there are multi- ple parallel lane markers; lane
markers that are faded or not
painted clearly; yellow painted
lane markers; non-standard 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 sha- dows, snow, water, wheel ruts,
seams or lines remaining after
road repairs. (The LDW and LDP
systems could detect these items
as lane markers.)
— On roads where the traveling lane merges or separates.
— When the vehicle’s traveling di- rection does not align with the
lane marker.
— When traveling close to the ve- hicle in front of you, which ob-
structs 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 sun-
set.)
— When a sudden change in bright- ness occurs. (For example, when
the vehicle enters or exits a tunnel or under a bridge.)

JVS0829X
Driver assist system blind spot indica-
tor (green) (on the vehicle information
display)
Dynamic driver assistance switch
Lower display
TURNING THE BSI SYSTEM ON/
OFF
To turn on the BSI system, push the dynamic
driver assistance switchon the steering
wheel after starting the engine. The driver
assist system blind spot indicator (green)
in the vehicle information display will illumi- nate.
Push the dynamic driver assistance switch
again to turn off the BSI system. The driver
assist system blind spot indicatorwill turn
off.
The dynamic driver assistance switch
is
used for Active Lane Control, Blind Spot
Intervention (BSI), Lane Departure Preven-
tion (LDP) and Distance Control Assist
(DCA) systems. When the dynamic driver
assistance switch
is pushed, Active Lane
Control, LDP and DCA systems will also turn
on or off simultaneously. The BSI system can
be individually set to on or off on the lower
display
.
If the system is set to off, the system will not
turn on even if the dynamic driver assistance
switch
is pushed to on. To set the system
to on or off on the lower display, see “How
to enable/disable the BSI system” (P.5-54).
Starting and driving5-53

.The radar sensors are designed to
ignore most stationary objects, how-
ever objects such as guardrails, walls,
foliage and parked vehicles may oc-
casionally be detected. This is a
normal operation condition.
. The camera may not detect lane
markers in the following situations
and the BSI system may not operate
properly.
— On roads where there are multi- ple parallel lane markers; lane
markers that are faded or not
painted clearly; yellow painted
lane markers; nonstandard lane
markers; 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 sha-
dows, snow, water, wheel ruts,
seams or lines remaining after
road repairs.
— On roads where the traveling lane merges or separates. — When the vehicle’s traveling di-
rection does not align with the
lane markers.
— When traveling close to the ve- hicle in front of you, which ob-
structs the lane camera unit
detection range.
— When rain, snow or dirt adheres to the windshield in front of a lane
camera unit.
— When the headlights are not bright due to dirt on the lens or
if aiming is not adjusted properly.
— When strong light enters a lane camera unit. (For example: light
directly shines on the front of the
vehicle at sunrise or sunset.)
— When a sudden change in bright- ness occurs. (For example: when
the vehicle enters or exits a tunnel
or under a bridge.)
. Do not use the BSI system under the
following conditions because the sys-
tem may not function properly.
— During bad weather. (For exam- ple: rain, fog, snow, etc.)
— When driving on slippery roads, such as on ice or snow, etc. — When driving on winding or un-
even roads.
— When there is a lane closure due to road repairs.
— When driving in a makeshift or temporary lane.
— When driving on roads where the lane width is too narrow.
— When driving with a tire that is not within 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.
. Excessive noise (for example, audio
system volume, open vehicle window)
will interfere with the chime sound,
and it may not be heard.
Starting and driving5-55