Blind Spot Monitoring

Using camera and/or sonar technologies, blind-spot systems scan a driver's no-see zone. If a car or motorcycle lurks in a driver's peripheral vision and the steering wheel turns, a warning light or audible alarm sounds to warn of the hidden danger — possibly preventing unintentional paint swapping.

The most sophisticated version of the technology is Volvo's Blind Spot Information Systems, or BLIS. Found in the S80, BLIS uses a camera on each side-view mirror and indicators in the corners of the front windows alert the driver to the presence of vehicles.