Daimler Freightliner Cascadia 2021, Driver Manual, Page: 113 / 322

If ACC is, or becomes, unavailable, a message will
be displayed that allows the driver to choose to use
standard cruise control. See
Fig. 5.5 .
Increasing or Reducing Speed
The speed setting can only be set when driving.
Press –/SET to set the cruise speed while the ve-
hicle is traveling at the desired speed. Press and
hold to decrease the set cruise speed.
Setting the Distance to the Vehicle in Front
The ACC settings menu can be used to set the dis-
tance to the vehicle in front.
IMPORTANT: Make sure that the minimum dis-
tance is maintained to the vehicle in front re-
quired by law. Adjust the specified minimum dis-
tance to the vehicle in front if necessary.
Collision Warning
NOTE: If the accelerator pedal is pressed, or a
turn is indicated, the collision avoidance system
is suppressed.
In the event of a potential collision, a warning ap-
pears on the driver display screen and a double
warning tone sounds. The warning screen is dis-
played for as long as the hazardous situation per-
sists.
If a collision warning appears on the driver display
screen, pay attention to the traffic situation and re-
duce the vehicle speed using the service brake.
Overtaking
NOTE: It is possible to exceed the set speed
when overtaking.
The set speed can be exceeded using the accelera-
tor pedal. When the accelerator pedal is released,
the set speed will be resumed.
Deactivating the System
Press the CNCL switch, or, press the brake pedal to
deactivate cruise control.
NOTE: The set speed remains stored when
ACC is deactivated.
Tail Gate Warning
Tale Gate Warning uses the vehicle’s bumper
mounted radar to calculate a safe following distance
at speeds greater than 20 mph (32 kp/h). The sys-
tem will present a visual alert if the driver is following
the vehicle in front too closely. The system warns the
driver when:
•
ACC is not activated;
•
the vehicle is moving faster than 20 mph (32
kp/h); and
•
the driver follows a vehicle for longer than 10
seconds at a distance that will be traversed in
less than 2.6 seconds.
The system will not give warning when:
•
the vehicle is moving slower than 20 mph (32
km/h);
•
another vehicle cuts in front;
•
the vehicle in front is moving away: or
•
ACC is activated.
After the initial warning, the system will continue to
warn the driver every 20 seconds if the gap between
the vehicles does not increase.
Tail gate warning operates independently from active
brake assist (ABA).
Once activated, Tailgate Warning will deactivate only
at speeds less than 20mph (32 km/h).
f611455 09/15/2016
Fig. 5.5, ACC Unavailable
Detroit Assurance 4.0
5.4