Mazda 3 Owner's Manual page 238

BSM Warning Light
The Blind Spot Monitoring (BSM) system alerts the driver to the presence of another
vehicle in an adjacent lane using the Blind Spot Monitoring (BSM) warning lights and the
warning beep while the system is operational.
The warning light is equipped on the left and right door mirrors.
This warning light illuminates for a few seconds when the ignition is switched ON.
Driving forward
If the Blind Spot Monitoring (BSM) system detects a vehicle in the detection area while the
vehicle is driven at a speed of about 10 km/h (6.2mph) or more, the Blind Spot Monitoring
(BSM) warning light illuminates on the side of the vehicle where the rear on-coming vehicle
is detected. A warning indicator light fl ashes when the turn signal lever is operated to the
side where the Blind Spot Monitoring (BSM) warning lights is illuminated to alert the
driver.
Reversing
If vehicles approach from the rear on the left and right, the Blind Spot Monitoring (BSM)
warning lights on both sides fl ash.
NOTE
If ice or snow adhere to the outer mirror surface, the Blind Spot Monitoring (BSM)
warning light may not be visible.
If the door window glass is tinted, it may affect the visibility of the Blind Spot Monitoring
(BSM) warning light, making it diffi cult to confi rm the illumination of the light.
Blind Spot Monitoring (BSM) System
When Driving
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