Some customers may complain of improper BSM performance under the following conditions. 1. Even if there is no vehicle in the alert area, the BSM indicator light on the outer mirror glass illuminates. 2. When a vehicle appears in the alert area, the BSM indicator light on the outer mirror glass illuminates later than expected. 3. BSM indicator light on the outer mirror glass illuminates even when a vehicle is approaching two lanes away (right or left side). This may be caused by a variation of the relative location between the radar emitted by the BSM unit and the rear bumper. An error may occur in the detection angle of the radar.
