2013 Acura TL Owner's Manual - Page 527

Blind Spot Information System (BSI) Important Precautions Like all assistance systems, BSI has limitations. Over-reliance on BSI may result in a collision. Always look in your mirrors, to either side of your vehicle, and behind you for other vehicles before changing lanes. Limitations The BSI alert indicators may not illuminate under the following circumstances: The speed difference between your vehicle and a vehicle approaching from behind is greater than 31 mph (50 km/h). A vehicle is parked in a side lane. The speed difference between your vehicle and the vehicle you are passing is greater than 6 mph (10 km/h). An object not detected by the radar sensors approaches or passes your vehicle. BSI may be adversely affected under the following circumstances: When objects such as guard rails, poles, trees, etc., are detected. When an object that doesn't reflect radio waves well, such as a motorcycle, is in the alert zone. A vehicle is behind or approaching your vehicle while on a curved road. A vehicle is moving from a far lane to the adjacent lane. Driving CONTINUED 2013 TL 523