freightliner cascadia, Driver Manual

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The CWS cannot be disengaged or turned off, and is
always active at vehicle speeds above 15 mph (25
km/h).
Standby
When no object is detected, the display shows that
the CWS is on and the radar is searching. See
Fig. 6.17 .
Object Detected
When an object is detected in the lane ahead, the
display shows that the CWS is on and the radar is
tracking an object at the speed shown. See
Fig. 6.18 .
If the following distance between the vehicle and the
object is too close, the CWS will emit an audible alert
and the display background will turn yellow. The alert
will end when vehicle speed drops below the object
speed and the following distance is increased.
Collision Warning
If the object is traveling slower than the driver’s ve-
hicle, the CWS warns of an impending collision by
emitting an urgent audible alert and displaying the
collision warning symbol with a red background. See
Fig. 6.19 .
Adaptive Cruise Control (ACC)
ACC is a radar-based system that works in conjunc-
tion with conventional cruise control to maintain the
set cruise speed when no vehicle is being tracked,
and maintains a minimum following distance when an
object is being tracked. The minimum following dis-
tance is maintained by automatically decelerating the
vehicle using throttle, engine, and service brakes
without driver intervention. When the object is no lon-
ger being tracked, the set cruise control speed re-
sumes automatically.
Standby
When no object is detected, OnGuard ACC operates
similarly to conventional cruise control. The cruise
control set speed is shown on the OnGuard display
unit. See
Fig. 6.20 .
Object Detected
When an object is detected in the lane ahead, the
display shows that ACC is on and the radar is track-
ing an object at the speed shown. See
Fig. 6.21 .
08/30/2011 f545826
Fig. 6.17, OnGuard Display Unit
CWS
10/31/2014 f611143
55 MPH
230FT
Fig. 6.18, CWS Object Detected
10/31/2014 f611144
CWS 15 MPH
15 FT
Fig. 6.19, CWS Collision Warning
Driver Assistance Features
6.8