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Because the BSM system has various restrictions in the operation, the BSM indicator light might not illuminate or it may be delayed even if there is a vehicle traveling around the vehicle.
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Perform radar test for the BSM control module if the rear bumper has received an impact.
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The BSM system may not operate normally under the following conditions:
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Dirt, ice or snow is adhering to the rear bumper surface.
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The vehicle is driven in heavy rain or snowfall, or under conditions where water on the road is sprayed by the vehicle.
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The vehicle is towing a trailer.
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The vehicle accelerates from a standing-start with a target vehicle alongside.
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A target vehicle moves laterally from a lane two lanes over to the adjacent lane.
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The difference in vehicle speed between the vehicle and a target vehicle is higher with the target vehicle passing through the detection area in a very short period.
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On a steep incline, or if there is a difference in height between lanes.
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The BSM control module may not detect all types of vehicles. In particular, detection of the following types of vehicles may not occur:
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A vehicle driving at a low speed
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Small vehicles such as motorcycles
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Vehicles with body shapes that may not reflect radar such as unloaded trailers
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Vehicles with low vehicle height
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The difference in vehicle speed between the vehicle and a target vehicle is extremely high.
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A target vehicle accelerates suddenly from the rear of the vehicle and changes to the adjacent lane.
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A target vehicle is traveling in the vehicle's blind spot at nearly the same speed for long periods
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The BSM indicator light may be difficult to view under the following conditions:
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On a road with a narrower lane width, the system could detect vehicles on a lane next to the adjacent lane and cause the warning light and beep to operate. (Conversely, on a road with a wider lane width, the system may not detect vehicles on the adjacent lane and may not operate the warning light/beep.)
