ECO mode INFINITI Q50 2019 Service Manual

5-60Starting and driving
.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 BSI system back on.
When radar blockage is detected, the BSI
system will be turned off automatically, a
chime will sound and the “side radar ob-
struction” warning message will appear in
the vehicle information display
.
The BSI system is not available until the
conditions no longer exist. For additional
information, see “System maintenance”
(P.5-60).
Action to take:
When the above conditions no longer exist,
turn the BSI system on again. If the “side
radar obstruction” warning message ap-
pears even after the BSI system is turned
on again, stop the vehicle in a safe location,
place the shift lever in the P (Park) position
and turn the engine off. Check for and
remove objects obscuring the radar sensors
on the rear bumper, and restart the engine.
If the vehicle is parked in direct sunlight
under high temperature conditions (over
approximately 104°F (40°C)) and then the
BSI system is turned on, the BSI system may
be deactivated automatically. The “high
cabin temperature” warning message will appear in the vehicle information display
.
Action to take:
When the interior temperature is reduced,
push the dynamic driver assistance switch
again to turn the BSI system back on.
SYSTEM MALFUNCTION
When the BSI system malfunctions, it will be
turned off automatically, a chime will sound,
and the system “malfunction” warning mes-
sage with the driver assist system blind spot
indicator (orange) will appear in the vehicle
information display.
Action to take:
Stop the vehicle in a safe location and place
the shift lever in the P (Park) position. Turn
the engine off and restart the engine. If the
system “malfunction” warning message with
the driver assist system blind spot indicator
(orange) continues to be displayed, have the
BSI system checked. It is recommended you
visit an INFINITI retailer for this service.
JVS1125X
SYSTEM MAINTENANCE
The two radar sensorsfor the BSI system
are located near the rear bumper. Always
keep the area near the radar sensors clean.
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.
Check for and remove objects obstructing
the area around the radar sensors.
Do not attach stickers (including transparent
material), install accessories or apply addi-
tional paint near the radar sensors.

5-76Starting and driving
Always confirm the setting in the ICC system
display.
For the vehicle-to-vehicle distance control
mode, see “Vehicle-to-vehicle distance con-
trol mode” (P.5-76).
For the conventional (fixed speed) cruise
control mode, see “Conventional (fixed
speed) cruise control mode” (P.5-91).
JVS0835X
HOW TO SELECT THE CRUISE
CONTROL MODE
Selecting the vehicle-to-vehicle
distance control mode
To choose the vehicle-to-vehicle distance
control mode, quickly push and release the
MAIN switch.
Selecting the conventional (fixed
speed) cruise control mode
To choose the conventional (fixed speed)
cruise control mode, push and hold the
MAIN switchfor longer than approxi-
mately 1.5 seconds. See “Conventional (fixed speed) cruise control mode” (P.5-91).
VEHICLE-TO-VEHICLE DIS-
TANCE CONTROL MODE
In the vehicle-to-vehicle distance control
mode, the ICC system automatically main-
tains a selected distance from the vehicle
traveling in front of you according to that
vehicle’s speed (up to the set speed), or at
the set speed when the road ahead is clear.

JVS1123X
The system is intended to enhance the
operation of the vehicle when following a
vehicle traveling in the same lane and
direction.
If the radar sensor
detects a slower
moving vehicle ahead, the system will reduce
the vehicle speed so that your vehicle
follows the vehicle in front at the selected
distance.
The system automatically controls the throt-
tle and applies the brakes (up to approxi-
mately 40% of vehicle braking power) if
necessary.
The detection range of the sensor is approxi-
mately 650 ft (200 m) ahead.
Vehicle-to-vehicle distance control
mode operation
The vehicle-to-vehicle distance control
mode is designed to maintain a selected
distance and reduce the speed to match the
slower vehicle ahead; the system will de-
celerate the vehicle as necessary and if the
vehicle ahead comes to a stop, the vehicle
decelerates to a standstill. However, the ICC
system can only apply up to approximately
40% of the vehicle’s total braking power.
This system should only be used when traffic
conditions allow vehicle speeds to remain
fairly constant or when vehicle speeds
change gradually. If a vehicle moves into
the traveling lane ahead or if a vehicle
traveling ahead rapidly decelerates, the
distance between vehicles may become
closer because the ICC system cannot
decelerate the vehicle quickly enough. If this
occurs, the ICC system will sound a warning
chime and blink the system display to notify
the driver to take necessary action.
The system will cancel and a warning chime
will sound if the speed is below approxi-
mately 15 MPH (24 km/h) and a vehicle is
not detected ahead. The system will also
disengage when the vehicle goes above the
maximum set speed.
See “Approach warning” (P.5-84). The following items are controlled in the
vehicle-to-vehicle distance control mode:
.
When there are no vehicles traveling
ahead, the vehicle-to-vehicle distance
control mode maintains the speed set
by the driver. The set speed range is
between approximately 20 and 90 MPH
(32 and 144 km/h).
. When there is a vehicle traveling ahead,
the vehicle-to-vehicle distance control
mode adjusts the speed to maintain the
distance, selected by driver, from the
vehicle ahead. The adjusting speed range
is up to the set speed. If the vehicle
ahead comes to a stop, the vehicle
decelerates to a standstill within the
limitations of the system. The system
will cancel once it judges a standstill with
a warning chime.
. When the vehicle traveling ahead has
moved out from its lane of travel, the
vehicle-to-vehicle distance control mode
accelerates and maintains vehicle speed
up to the set speed.
The ICC system does not control vehicle
speed or warn you when you approach
stationary and slow moving vehicles. You
must pay attention to vehicle operation to
maintain proper distance from vehicles
ahead when approaching toll gates or traffic
congestion.
Starting and driving5-77

5-80Starting and driving
JVS0837X
Operating vehicle-to-vehicle dis-
tance control mode
To turn on the cruise control,quickly push
and release the MAIN switchon. The
Intelligent Cruise Control (ICC) system ON
indicator (white), set distance indicator and
set vehicle speed indicator come on and in a
standby state for setting.
JVS0838X
To set cruising speed, accelerate your
vehicle to the desired speed, push the SET/
COAST (-) switch and release it. (The ICC
system set indicator (green), vehicle ahead
detection indicator, set distance indicator
and set vehicle speed indicator come on.)
Take your foot off the accelerator pedal.
Your vehicle will maintain the set speed.
JVS0214X
When the SET/COAST (-) switch is pushed
under the following conditions, the system
cannot be set and the ICC indicators will
blink for approximately 2 seconds:
. When traveling below 20 MPH (32
km/h) and the vehicle ahead is not
detected
. When the shift lever is not in the D (Drive)
or manual shift mode
. When the parking brake is applied
. When the brakes are operated by the
driver
When the SET/COAST (-) switch is pushed
under the following conditions, the system
cannot be set.

radar sensor detects objects on the side of
the vehicle or on the side of the road. This
may cause the ICC system to decelerate or
accelerate the vehicle. The radar sensor may
detect these objects when the vehicle is
driven on winding roads, narrow roads, hilly
roads or when entering or exiting a curve. In
these cases you will have to manually
control the proper distance ahead of your
vehicle.
Also, the sensor sensitivity can be affected
by vehicle operation (steering maneuver or
driving position in the lane) or traffic or
vehicle condition (for example, if a vehicle is
being driven with some damage).
Automatic cancellation
A chime sounds under the following condi-
tions and the control is automatically can-
celed.
.When the vehicle ahead is not detected
and your vehicle is traveling below the
speed of 15 MPH (24 km/h)
. When the system judges the vehicle is at
standstill
. When the shift lever is not in the D
position or Manual mode
. When the parking brake is applied
. When the INFINITI Drive Mode Selector
is turned to the SNOW mode .
When the VDC system is turned off
. When ABS or VDC (including the traction
control system) operates
. When distance measurement becomes
impaired due to adhesion of dirt or
obstruction to the sensor
. When a wheel slips
. When the radar signal is temporarily
interrupted
Vehicle-to-vehicle distance control
mode limitations
WARNING
Listed below are the system limitations
for the ICC system. Failure to operate
the vehicle in accordance with these
system limitations could result in serious
injury or death.
. The system is primarily intended for
use on straight, dry, open roads with
light traffic. It is not advisable to use
the system in city traffic or con-
gested areas.
. This system will not adapt automati-
cally to road conditions. This system
should be used in evenly flowing
traffic. Do not use the system on
roads with sharp curves, or on icy roads, in heavy rain or in fog.
. As there is a performance limit to the
distance control function, never rely
solely on the ICC system. This system
does not correct careless, inattentive
or absent-minded driving, or over-
come poor visibility in rain, fog, or
other bad weather. Decelerate the
vehicle speed by depressing the brake
pedal, depending on the distance to
the vehicle ahead and the surround-
ing circumstances in order to main-
tain a safe distance between vehicles.
. If the vehicle ahead comes to a stop,
the vehicle decelerates to a standstill
within the limitations of the system.
The system will cancel once it judges
that the vehicle has come to a
standstill and sound a warning chime.
To prevent the vehicle from moving,
the driver must depress the brake
pedal.
. Always pay attention to the opera-
tion of the vehicle and be ready to
manually control the proper follow-
ing distance. The vehicle-to-vehicle
distance control mode of the ICC
system may not be able to maintain
the selected distance between vehi-
cles (following distance) or selected
vehicle speed under some circum-
Starting and driving5-85

5-86Starting and driving
stances.
. The system may not detect the
vehicle in front of you in certain road
or weather conditions. To avoid ac-
cidents, never use the ICC system
under the following conditions:
— On roads where the traffic is heavy or there are sharp curves
— On slippery road surfaces such as on ice or snow, etc.
— During bad weather (rain, fog, snow, etc.)
— When rain, snow or dirt adhere to the system sensor
— On steep downhill roads (the vehicle may go beyond the set
vehicle speed and frequent brak-
ing may result in overheating the
brakes)
— On repeated uphill and downhill roads
— When traffic conditions make it difficult to keep a proper distance
between vehicles because of fre-
quent acceleration or deceleration
. In some road or traffic conditions, a
vehicle or object can unexpectedly
come into the sensor detection zone and cause automatic braking. You
may need to control the distance
from other vehicles using the accel-
erator pedal. Always stay alert and
avoid using the ICC system when it is
not recommended in this section.
The radar sensor will not detect the follow-
ing objects:
. Stationary and slow moving vehicles
. Pedestrians or objects in the roadway
. Oncoming vehicles in the same lane
. Motorcycles traveling offset in the travel
lane
The sensor generally detects the signals
returned from the vehicle ahead. Therefore,
if the sensor cannot detect the reflection
from the vehicle ahead, the ICC system may
not maintain the selected distance.
The following are some conditions in which
the sensor cannot detect the signals:
. When the snow or road spray from
traveling vehicles reduces the sensor’s
visibility
. When excessively heavy baggage is
loaded in the rear seat or the trunk of
your vehicle
The ICC system is designed to automatically
check the sensor’s operation within the
limitation of the system. When the sensor is covered with dirt or is obstructed, the
system will automatically be canceled. If the
sensor is covered with ice, a transparent or
translucent vinyl bag, etc., the ICC system
may not detect them. In these instances, the
vehicle-to-vehicle distance control mode
may not cancel and may not be able to
maintain the selected following distance
from the vehicle ahead. Be sure to check
and clean the sensor regularly.

.When the INFINITI Drive Mode Selector
is turned to the SNOW mode
. When the radar signal is temporarily
interrupted
Action to take:
When the conditions listed above are no
longer present, turn the ICC system back on
to use the system.
JVS0221X
ICC system warning
Condition B:
Under the following conditions, making it
impossible to detect a vehicle ahead, the ICC
system is automatically canceled.
The chime will sound, the ICC system
warning (orange) and the “front radar ob-
struction” warning message will appear in
the vehicle information display.
. When the radar sensor area of the front
bumper is covered with dirt or is ob-
structed Action to take:
If the warning (orange) or warning message
appears, stop the vehicle in a safe place,
place the shift lever in the P (Park) position
and turn the engine off. When the radar
signal is temporarily interrupted, clean the
sensor area of the front bumper and restart
the engine. If the warning (orange) or
warning message continues to be displayed,
have the system checked. It is recommended
you visit an INFINITI retailer for this service.
.
When driving on roads with limited road
structures or buildings (for example, long
bridges, deserts, snow fields, driving next
to long walls)
Action to take:
When the above conditions no longer exist,
the ICC system will resume automatically.
Condition C:
When the ICC system is not operating
properly, the chime sounds and the ICC
system warning (orange) will appear.
Action to take:
If the warning appears, stop the vehicle in a
safe place and place the shift lever in the P
(Park) position. Turn the engine off, restart
the engine, resume driving and set the ICC
system again.
If it is not possible to set the system or the
warning stays on, it may indicate that the
Starting and driving5-89

5-92Starting and driving
JVS0301X
Conventional (fixed speed) cruise
control mode display and indicators
The display is located in the vehicle informa-
tion display.
1. Cruise indicator:This indicator indicates the condition of
ICC system depending on a color.
.Cruise control ON indicator (white):Indicates that the MAIN switch is ON.
.Cruise control set indicator (green):Displays while the vehicle speed is
controlled by the conventional (fixed
speed) cruise control mode of the ICC
system.
.Cruise control system warning (or-ange):
Indicates that there is a malfunction in
the ICC system.
2. Set vehicle speed indicator: This indicator indicates the set vehicle
speed.
For Canadian models, the speed is dis-
played in km/h.
JVS0842X
Operating conventional (fixed
speed) cruise control mode
To turn on the conventional (fixed speed)
cruise control mode, push and hold the
MAIN switch
for longer than about 1.5
seconds.
When pushing the MAIN switch on, the
conventional (fixed speed) cruise control
mode display and indicators are displayed
in the vehicle information display. After you
hold the MAIN switch on for longer than
about 1.5 seconds, the ICC system display
turns off. The cruise indicator appears. You
can now set your desired cruising speed.
Pushing the MAIN switch again will turn the

5-94Starting and driving
3. Push, then quickly release the SET/COAST (-) switch. Each time you do this,
the set speed will decrease by about 1
MPH (1.6 km/h).
To resume the preset speed, push and
release the RESUME/ACCELERATE (+)
switch. The vehicle will resume the last set
cruising speed when the vehicle speed is over
25 MPH (40 km/h).
System temporarily unavailable
A chime sounds under the following condi-
tions and the control is automatically can-
celed.
. When the vehicle slows down more than
8 MPH (13 km/h) below the set speed
. When the shift lever is not in the D (Drive)
or manual shift mode
. When the parking brake is applied.
. When the VDC operates (including the
traction control system)
. When a wheel slips
JVS0306X
Warning
When the system is not operating properly,
the chime sounds and the color of the cruise
indicator will change to orange.
Action to take:
If the color of the cruise indicator changes to
orange, stop the vehicle in a safe place and
place the shift lever in the P (Park) position.
Turn the engine off, restart the engine,
resume driving and then perform the setting
again.
If it is not possible to set or the indicator
stays on, it may indicate that the system is
malfunctioning. Although the vehicle is still
driveable under normal conditions, have the vehicle checked. It is recommended you visit
an INFINITI retailer for this service.

For details about the VDC system, see
“Vehicle Dynamic Control (VDC) system”
(P.5-133)
. When the VDC or ABS (including the
traction control system) operates
. When the INFINITI Drive Mode Selector
is turned to the SNOW mode (To use the
DCA system, turn the INFINITI Drive
Mode Selector to a mode other than the
SNOW mode, then turn on the dynamic
driver assistance switch
.) For details
about the INFINITI Drive Mode Selector,
see “INFINITI Drive Mode Selector” (P.5-
22)
. When the radar signal is temporarily
interrupted
Action to take:
When the conditions listed above are no
longer present, turn the DCA system back on
to use the system.
Condition B
Under the following conditions, making it
impossible to detect a vehicle ahead, the
DCA system is automatically canceled.
The chime will sound, the driver assist
system forward indicator (orange) and the
“front radar obstruction” warning message
will appear in the vehicle information display.
. When the radar sensor area of the front bumper is covered with dirt or is ob-
structed
Action to take:
If the driver assist system forward indicator
(orange) and the warning message appear,
stop the vehicle in a safe place, place the
shift lever in the P (Park) position and turn
the engine off. When the radar signal is
temporarily interrupted, clean the sensor
area of the front bumper and restart the
engine. If the warning message continues to
be displayed, have the DCA system checked.
It is recommended you visit an INFINITI
retailer for this service.
. When driving on roads with limited road
structures or buildings (for example, long
bridges, deserts, snow fields, driving next
to long walls)
Action to take:
When the above conditions no longer exist,
the DCA system will resume automatically.SYSTEM MALFUNCTION
When the DCA system is not operating
properly, the chime sounds, the driver assist
system forward indicator (orange) and the
system “malfunction” warning message will
appear in the vehicle information display. Action to take:
If the driver assist system forward indicator
(orange) and the warning message appear,
stop the vehicle in a safe place and place the
shift lever in the P (Park) position. Turn the
engine off, restart the engine, and turn on
the DCA system again.
If it is not possible to set the system or the
indicator stays on, it may indicate that the
system is malfunctioning. Although the
vehicle is still driveable under normal con-
ditions, have the vehicle checked. It is
recommended you visit an INFINITI retailer
for this service.
SYSTEM MAINTENANCE
The sensor for the DCA system is common
with the Intelligent Cruise Control (ICC)
system and is located behind the lower grille
of the front bumper.
For the sensor maintenance, see “Intelligent
Cruise Control (ICC)” (P.5-74).
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
Starting and driving5-105