Honda Civic manuals

Subaru Legacy Owners Manual: System operation

Operating conditions

The BSD/RCTA will operate when all of the following conditions are met.

  •  The ignition switch is in the "ON" position.
  •  The BSD/RCTA warning indicator and BSD/RCTA OFF indicator are turned off.
  •  The vehicle is driven at speeds above 6 mph (10 km/h) (except when reversing).
  •  The shift lever/select lever is in the "R" position (RCTA only).

The BSD/RCTA will not operate in the following situations.

  •  The BSD/RCTA OFF indicator appears.
  •  The vehicle speed is below 6 mph (10 km/h) even when the BSD/RCTA OFF indicator does not appear (except when reversing).


  •  In the following cases, the BSD/ RCTA will stop operating and the BSD/RCTA warning indicator will appear.
  •  When a malfunction occurs in the system, including the BSD/RCTA approach indicator light
  •  If the BSD/RCTA warning indicator appears, exercise proper caution. For details, refer to "BSD/RCTA warning indicator" .
  •  In the following cases, the BSD/ RCTA will temporarily stop operating (or may stop operating) and the BSD/ RCTA warning indicator will appear.
  •  When the radar sensor becomes significantly misaligned (If the orientation of the radar sensor is shifted for any reason, readjustment is required. Have the sensor adjusted at a SUBARU dealer.)
  •  When a large amount of snow or ice sticks to the rear bumper surface around the radar sensors
  •  When the vehicle is driven on a snow-covered road or in an environment in which there are no objects around (such as in a desert) for a prolonged period of time
  •  When the temperature around the radar sensors increases excessively due to long driving on uphill grades in the summer, etc.
  •  When the temperature around the radar sensors becomes extremely low
  •  When the vehicle battery voltage lowers
  •  When the vehicle voltage exceeds the battery voltage rating

The BSD/RCTA will resume operation once these conditions are corrected, and the BSD/RCTA warning indicator will disappear. However, if the BSD/ RCTA warning indicator appears for a prolonged period of time, have the system inspected at a SUBARU dealer as soon as possible.

  •  The detectability of the radar sensors is restricted. The BSD/RCTA detection may be impaired and the system may not operate properly under the following conditions.
  •  When the rear bumper around the radar sensors is distorted
  •  When ice, snow or mud adheres to the rear bumper surface around the radar sensors
  •  When stickers, etc. are affixed on the areas of the radar sensors on the rear bumper
  •  During adverse weather conditions such as rain, snow or fog
  •  When driving on wet roads such as snow-covered roads and through puddles
  •  The radar sensors may not detect or may have difficulty detecting the following vehicles and objects.
  •  Small motorcycles, bicycles, pedestrians, stationary objects on the road or road side, etc.
  •  Vehicles with body shapes that the radar may not reflect (vehicles with lower body height such as a trailer with no cargo and sports cars)
  •  Vehicles that are not approaching your vehicle even though they are in the detection area (either on a neighboring lane to the rear or beside your vehicle when reversing) (The system determines the presence of approaching vehicles based on data detected by the radar sensors.)
  •  Vehicles traveling at significantly different speeds
  •  Vehicles driving in parallel at almost the same speed as your vehicle for a prolonged time
  •  Oncoming vehicles
  •  Vehicles in a lane beyond the neighboring lane
  •  Vehicles travelling at a significantly lower speed that you are trying to overtake
  •  On a road with extremely narrow lanes, the system may detect vehicles driving in a lane next to the neighboring lane.
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 v ...

BSD/RCTA approach indicator light/warning buzzer
While the BSD/RCTA is active, the following item(s) will operate to alert the driver:  The BSD/RCTA approach indicator light (when there are vehicles in the neighboring lanes).  T ...

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Clear memory mode operation
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