In fact, according to the National Highway Traffic Safety Administration (NHTSA), roughly 9% of all reported vehicle crashes each year result from changing lanes or merging.
BSM is an active driver aid/safety device with the ability to detect what your eyes may miss, issuing a warning as a vehicle approaches in an adjoining lane.
Once only found in high-end luxury cars, blind-spot monitoring eventually trickled down to even economy cars. If BSM isn’t standard on a vehicle, it’s probably available as a stand-alone option or in an option package.
The larger your vehicle, the bigger the blind spot. The bigger the blind spot, the more BSM can help prevent you from changing lanes into another vehicle.