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Vehicle Dynamics and Driver Assist Systems
May 2017
Rear Radar Characteristics
The BSD/RCTA system will not operate in the following situations:
• The BSD/RCTA OFF indicator is illuminated
• The vehicle speed is below 10 mph (15 km/h) even when the BSD/RCTA OFF indicator
is not illuminated (Except when reversing)
The following may cause the BSD/RCTA system indicators to illuminate:
• Driving close to solid objects such as guardrails, tunnels, and sidewalls
• Turning at an intersection in an urban area
• A building or wall exists in the reversing direction
• On a road with extremely narrow lanes, the system may detect vehicles driving in a
lane next to the neighboring lane
Driving to close to Guard Rail
The Radar sensors may not detect or may have difficulty detecting the following vehicles or
objects:
• Small motorcycles, bicycles, pedestrians, and stationary objects on the road or road
side
• Vehicles with body shapes that do not reflect radar (vehicles with low 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 the 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
period of time
• Oncoming vehicles
• Vehicles in a lane beyond the neighboring lane
• Vehicles traveling at a significantly lower speed that you are trying to overtake
Caution: The driver is responsible for driving safely. Always be sure to check the
surroundings with your eyes when changing lanes or reversing the vehicle. This
system is designed to assist the driver by monitoring the rear and side areas of the
vehicle during lane change and reversing. However, you cannot rely on this system
alone in assuring safety during a lane change or reversing. Over-confidence in this
system could result in an accident and lead to serious injury or death. Since the
system operation has various limitations, the flashing or illumination of the BSD/
RCTA approach indicator light may be delayed or it may not operate at all even
when a vehicle is present in a neighboring lane or approaching from either side.
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