2021 INFINITI QX80 speed

5-82Starting and driving
WAF0313X
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
on the vehicle information display. After you
hold the MAIN switch on for longer than
about 1.5 seconds, the ICC system display
goes out. The cruise indicator stays lit. You
can now set your desired cruising speed.
Pushing the MAIN switch again will turn the system completely off.
When the ignition switch is pushed to the
OFF position, the system is also automati-
cally turned off.
To use the ICC system again, quickly push
and release the MAIN switch (vehicle-to-
vehicle distance control mode) or push and
hold it (conventional cruise control mode)
again to turn it on.
When the Distance Control Assist (DCA)
system is on, the conventional (fixed speed)
cruise control mode cannot be turned on
even though the MAIN switch is pushed and
held.
To turn on the conventional (fixed speed)
cruise control mode, turn off the DCA
system. See “Distance Control Assist
(DCA)” (P.5-84).CAUTION
To avoid accidentally engaging cruise
control, make sure to turn the MAIN
switch off when not using the ICC
system.
WAF0314X
To set cruising speed,
accelerate your
vehicle to the desired speed, push the
COAST/SET switch and release it. (The
color of the cruise indicator changes to
green and set vehicle speed indicator comes
on.) Take your foot off the accelerator pedal.
Your vehicle will maintain the set speed.
. To pass another vehicle, depress the
accelerator pedal. When you release the
pedal, the vehicle will return to the
previously set speed.
. The vehicle may not maintain the set
speed when going up or down steep hills.
If this happens, manually maintain vehi-
cle speed.
To cancel the preset speed, use any of the

following methods:
1. Push the CANCEL switch. The setvehicle speed indicator will turn off.
2. Tap the brake pedal. The set vehicle speed indicator will turn off.
3. Turn the MAIN switch off. Both the cruise indicator and set vehicle speed
indicator will turn off.
To reset at a faster cruising speed, use one
of the following three methods:
1. Depress the accelerator pedal. When the
vehicle attains the desired speed, push
and release the COAST/SET switch.
2. Push and hold the ACCELERATE/RE- SUME set switch. When the vehicle
attains the speed you desire, release
the switch.
3. Push, then quickly release the ACCEL- ERATE/RESUME switch. Each time you
do this, the set speed will increase by
about 1 MPH (1.6 km/h).
To reset at a slower cruising speed, use one
of the following three methods:
1. Lightly tap the brake pedal. When the
vehicle attains the desired speed, push
the COAST/SET switch and release it.
2. Push and hold the COAST/SET switch. Release the switch when the vehicle
slows down to the desired speed. 3. Push, then quickly release the COAST/
SET 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 ACCELERATE/RESUME
switch. The vehicle will resume the last set
cruising speed when the vehicle speed is over
25 MPH (40 km/h).
System temporarily unavailable
Under the following condition, a chime will
sound and the system control is automati-
cally canceled.
. When the vehicle slows down more than
8 MPH (13 km/h) below the set speed
. When the shift lever is shifted to the N
(Neutral) position
. When the parking brake is applied
. When the VDC (including the traction
control system) operates.
. When a wheel slips
WAF0315X
Warning light
When the system is not operating properly,
the chime sounds and the system warning
(yellow) will come on.
Action to take:
If the warning comes on, park the vehicle in a
safe place. 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.
Starting and driving5-83

5-84Starting and driving
WARNING
Failure to follow the warnings and
instructions for proper use of the DCA
system could result in serious personal
injury or death.
.Always drive carefully and atten-
tively when using the DCA system.
Read and understand the Owner’s
Manual thoroughly before using the
DCA system. To avoid serious injury
or death, do not rely on the system to
prevent accidents or to control the
vehicle’s speed in emergency situa-
tions. Do not use the DCA system
except in appropriate road and traffic
conditions.
. This system is only an aid to assist the
driver and is not a collision warning or
avoidance device. It is the driver’s
responsibility to stay alert, drive
safely and be in control of the vehicle
at all times.
. As there is a performance limit to the
distance control function, never rely
solely on the DCA system. This sys-
tem does not correct careless, inat-
tentive or absent-minded driving, or
overcome 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.
. Always pay attention to the opera-
tion of the vehicle and be ready to
manually decelerate to maintain the
proper following distance. The DCA
system may not be able to decelerate
the vehicle under some circum-
stances.
. This system only brakes and moves
the accelerator pedal upward to help
assist the driver to maintain a follow-
ing distance from the vehicle ahead.
Acceleration should be operated by
the driver.
. The DCA 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.
. The DCA system automatically de-
celerates your vehicle to help assist
the driver to maintain a following
distance from the vehicle ahead.
Manually brake when deceleration is
required to maintain a safe distance
upon sudden braking by the vehicle ahead or when a vehicle suddenly
appears in front of you. Always stay
alert when using the DCA system.
. If the vehicle ahead comes to a stop,
the vehicle decelerates to a standstill
within the limitations of the system.
The system will cancel with a warning
chime once it judges that the vehicle
has come to a standstill. To prevent
the vehicle from moving, the driver
must depress the brake pedal.
DISTANCE CONTROL ASSIST
(DCA) (if so equipped)

JVS1154X
The DCA system is intended to assist the
driver in keeping a following distance from
the vehicle ahead traveling in the same lane
and direction.
If the radar sensor
detects a slower
moving vehicle ahead, the system will reduce
the vehicle speed to help assist the driver to
maintain a following 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.
WAF0316X
Vehicle ahead detection indicator
LDP/BSI/DCA ON indicator
Dynamic driver assistance switch
Lower display
Starting and driving5-85

5-86Starting and driving
DCA SYSTEM OPERATION
WARNING
Failure to follow the warnings and
instructions for proper use of the DCA
system could result in serious personal
injury or death.
.When the vehicle ahead detection
indicator is not illuminated, system
will not control the vehicle or warn
the driver.
. Never place your foot under the
brake pedal. Your foot may be caught
when the system controls the brake.
. Depending on the position of the
accelerator pedal, the system may
not be able to assist the driver to
release the accelerator pedal appro-
priately.
The DCA system brakes and moves the
accelerator pedal upward according to the
distance from and the relative speed of the
vehicle ahead to help assist the driver in
maintaining a following distance. The sys-
tem will decelerate as necessary and if the
vehicle ahead comes to a stop, the vehicle
decelerates to a standstill. However, the
DCA system can only apply up to approxi- mately 40% of the vehicle’s total braking
power. 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
DCA system cannot decelerate the vehicle
quickly enough. If this occurs, the DCA
system will sound a warning chime and blink
the system display to notify the driver to
take necessary action.
See “Approach warning” (P.5-88).

5-88Starting and driving
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
DCA system display. Decelerate by depres-
sing the brake pedal to maintain a safe
vehicle distance if:
.The chime sounds.
. The vehicle ahead detection indicator
(orange) blinks.
The warning chime may not sound in some
cases when there is a short distance be-
tween 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 vehicles
is increasing
. 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.
NOTE:
The approach warning chime may sound
and the system display may blink when the
radar sensor detects objects on the side of
the vehicle or on the side of the road. This
may cause the DCA 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).

WAF0299X
LDP/BSI/DCA ON indicator (on the
vehicle information display)
Dynamic driver assistance switch
Lower display
TURNING THE DCA SYSTEM ON/
OFF
To turn on the DCA system, push the
dynamic driver assistance switchon the
steering wheel after starting the engine. The
LDP/BSI/DCA ON indicator
in the vehicle
information display will appear. Push the
dynamic driver assistance switch
again to
turn off the DCA system. The LDP/BSI/
DCA ON indicator
will turn off.
The system will start to operate after the
vehicle speed is above approximately 3 MPH
(5 km/h).
The dynamic driver assistance switch
is
used for the Lane Departure Prevention
(LDP), Blind Spot Intervention
®(BSI) and
DCA systems. When the dynamic driver
assistance switch
is pushed, the BSI and
LDP systems will also turn on or off
simultaneously. The DCA system can be
individually set to on or off using the settings
menu 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 DCA system” (P.5-90).
When the Conventional (fixed speed) cruise
control mode is operating, the DCA system
will not operate. (To use the DCA system,
turn the conventional (fixed speed) cruise
Starting and driving5-89

5-90Starting and driving
control mode off, then push the dynamic
driver assistance switch.)
For details about the Conventional (fixed
speed) cruise control mode, see “Intelligent
Cruise Control (ICC)” (P.5-64).
When the engine is turned off, the system is
automatically turned off.
JVS1214X
HOW TO ENABLE/DISABLE THE
DCA SYSTEM
Perform the following steps to enable or
disable the DCA system.
1. Push the MENU button
and touch
[Driver Assistance] on the lower display.
2. Touch [Forward Assist].
3. Touch [Distance Control] to enable or disable the system.
The displayed keys on the lower display may
vary depending on models, specifications
and software versions.
If the LDP, BSI and DCA systems are set to
off in the lower display and the dynamic driver assistance switch is pushed, the LDP/
BSI/DCA ON indicator will blink for approxi-
mately 2 seconds.
For additional information on LDP and BSI,
refer to “LDP system operation” (P.5-26)
and “Blind Spot Intervention
®(BSI)” (P.5-
41).