Collision Warning System
The CWS may require a warm-up period of up to
one minute if the outside air temperature is below
32°F (0°C). The DIU will display a warm-up message
until the system reaches operating temperature. See
Fig. 2.43.
The alerts given by the VS-400 system are based on
the distance to the object ahead, whenever vehicle
speed is 10 mph (8 km/h) or faster. The VS-400
CWS identifies and tracks the nearest object in the
lane of travel. This object is classified by the range,
and assigned a message described under the follow-
ing headings.
Object Detected
When a vehicle is detected in the same lane of travel
within 350 ft (107 m) but farther than a 3-second fol-
lowing distance, the DIU will display OBJECT DE-
TECTED. See Fig. 2.44.
3-Second Headway Alert
When a vehicle is detected to be within a 3-second
following distance, a single yellow indicator will illumi-
nate and the DIU will display 3 seconds. See
Fig. 2.45.
2-Second Headway Alert
When the following distance to the object ahead in
the same lane of travel decreases to within two sec-
onds, a second yellow indicator will illuminate, the
f610929a
DIU DIAGNOSTICS
SPN: 00886 FMI:012
OK
OK
02/03/2012
TM
Fig. 2.42, DIU Diagnostic Screen
f610924a
A
B
Do not use
Radar Warming Up
Radar Warming Up
SmartCruise
Please wait
OK
OK
02/03/2012
TM
TM
A. CWS with
SmartCruise
B. CWS Only
Fig. 2.43, CWS Warm-Up Screens
f610930a
Object Detected
OK
02/03/2012
TM
Fig. 2.44, Object Detected Alert
f610931a
3 seconds
OK
02/03/2012
TM
Fig. 2.45, 3-Second Alert
Instruments and Controls Identification
2.35
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