Subaru legacy 2017 Owner's Manual page 426

Lane Change Assist (LCA)
1) Operating range
The system notifies the driver of vehicles
approaching at a high speed in the
neighboring lanes.
. If the system detects a vehicle ap-
proaching at a high speed in the neighbor-
ing lanes, it warns the driver of dangers by
illuminating the BSD/RCTA approach in-
dicator light(s) on the outside mirror(s).
. If the driver operates the turn signal
lever in the direction where the BSD/
RCTA approach indicator light is illuminat-
ing, the system warns the driver of
dangers by flashing the BSD/RCTA ap-
proach indicator light.
Rear Cross Traffic Alert (RCTA)
1) Operating range
The system notifies the driver of another
vehicle approaching from either side when
driving in reverse. This feature helps the
driver check the rear and side areas of the
vehicle when moving backward.
If the system detects a vehicle approach-
ing from either side while moving back-
ward, it warns the driver of dangers in the
following way.
. The BSD/RCTA approach indicator
light(s) on the outside mirror(s) flashes.
. A warning buzzer sounds.
. An icon appears on the rear view
camera screen (if equipped)
Starting and operating/BSD/RCTA
Limitations of the detectability of
RCTA
Since the detectability of RCTA is limited,
the RCTA may not operate properly in
parking areas in which the parking spaces
are drawn diagonally to the driving lanes.
Example 1
1) The detection range of the radar sensors
2) Area out of detection range of the radar
sensors
A) Vehicle that may not be detected
B) Parked vehicle
WARNING
An approaching vehicle (A) may not
be detected because the detection
range is limited by the parked
vehicle (B). Always be sure to check
CONTINUED
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