Subaru WRX & WRX STI Manuals 2018 WRX & WRX STI Owner’s Manual | Page 410

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Starting and operating/BSD/RCTA
! Lane Change Assist (LCA)
1)
Operating range
The system warns the driver of dangers as
follows.
. If the system detects vehicles ap-
proaching at high speeds in the neighbor-
ing lanes, the BSD/RCTA approach in-
dicator light(s) on the outside mirror(s) will
illuminate.
. If the driver operates the turn signal
lever to the side where the BSD/RCTA
approach indicator light is illuminated, the
corresponding BSD/RCTA approach indi-
cator light will flash.
! Rear Cross Traffic Alert (RCTA)
1)
! Limitations of the detectability of
RCTA
Since the detectability of RCTA is limited,
the RCTA may not operate properly in
angled parking.
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.
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
the surroundings with your eyes