Daimler Freightliner Cascadia 2021, Driver Manual

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•
should not be relied on to track lead vehicles
when traveling through a severe curve in the
road. Because of this, ACC is not recom-
mended for use on winding roads;
•
should not be relied upon to track narrow ob-
jects like motorcycles, mopeds, bicycles, or
pedestrians;
•
should not be relied on to alert drivers to ve-
hicles in an adjacent lane.
OnGuard Display Unit
The OnGuardACTIVE CMS controls are located in
the display unit. The display provides visual and au-
dible warnings and messages, as well as verification
of correct system operation and faults. Menu selec-
tions are made by pressing the up and down arrows,
and the MODE button. See
Fig. 7.25 .
The display unit includes:
•
an internal speaker
•
a graphic display
•
buttons to scroll and select options
•
day/night display mode (second-generation
only)
Collision Warning System (CWS)
The CWS generates audible, visual, and vibrational
alerts when the following distance may result in a
collision. The OnGuard display unit shows a graphic
of the condition, enhanced by a screen color relevant
to the intensity of the situation. See
Table 7.1 .
OnGuard Display Screen Background Colors
Screen Color Description
Blue
General operation; no lead vehicles
detected.
Green Lead vehicle detected.
Yellow
Following distance alert, accompanied
by an audible alert.
Red
Collision warning, stationary object
warning. Accompanied with audible
alert.
Amber Data Error
Table 7.1, OnGuard Display Screen Background
Colors
If a potential collision is developing and the driver
does not take action to slow the vehicle, OnGuar-
dACTIVE’s active braking feature issues a short
brake pulse and de-throttles the engine.
If the driver does not take the appropriate action and
a potential collision still exists, OnGuardACTIVE re-
duces the engine torque and applies the engine and
service brakes to slow the vehicle.
The active braking application is intended only to
provide early braking; the driver is still required to
recognize and react to all driving situations.
If OnGuardACTIVE detects a stationary object (such
as a disabled car), it will provide an audible alert fol-
lowed by a vibrational alert and then brake to reduce
the vehicle’s speed.
Again, the active braking application is intended only
to provide early braking; the driver is still required to
recognize and react to all driving situations.
IMPORTANT: the collision mitigation system
(CMS) and active braking are not operational at
vehicle speeds below 15 mph (25 km/h).
The collision warning system (CWS) cannot be dis-
engaged or turned off, and is always active at vehicle
speeds above 15 mph (25 km/h).
Standby
When no lead vehicle is detected, the display shows
that the CMS is on and the radar is searching. See
Fig. 7.26 .
A Vehicle is Detected
When a lead vehicle is detected in the lane ahead,
the display shows that the CMS is on and the radar
is tracking a lead vehicle at the speed shown. See
Fig. 7.27 .
f611277 02/17/2017
1
2
3
4
1. Mode
2. Day/Night Mode
3. Up
4. Down
Fig. 7.25, OnGuard Display Unit
Driver Assistance Features
7.21