Blind Spot Monitoring (BSM)

When BSM recognizes a vehicle about to enter a blind spot, it warns you that a particular adjoining lane is unclear. Commonly, the alert comes as a yellow warning light on the outboard rearview mirror on whichever side the oncoming car is approaching. It may instead appear on your vehicle’s A-pillar (the pillar between the windshield and either front door), driver-information display, or head-up display.