Mazda MX-5 2020 Owner's Manual page 218

When Driving
i-ACTIVSENSE
▼ Blind Spot Monitoring (BSM) Warning Lights/Blind Spot Monitoring (BSM)
Warning Beep
The BSM or Rear Cross Traffic Alert (RCTA) system notifies the driver of the presence of
vehicles in adjacent lanes to the rear of your vehicle using the BSM warning lights and the
warning beep while the systems are operational.
BSM warning lights
The BSM warning lights are equipped on the left and right door mirrors. The warning lights
turn on when a vehicle approaching from the rear in an adjacent lane is detected.
When the ignition is switched ON, the malfunction warning light turns on momentarily and
then turns off after a few seconds.
Forward driving (BSM system operation)
The BSM system detects vehicles approaching from the rear and turns on the BSM warning
lights equipped on the door mirrors according to the conditions. Additionally, while a BSM
warning light is illuminated, if the turn signal lever is operated to signal a turn in the
direction in which the BSM warning light is illuminated, the BSM warning light flashes.
Reverse driving (Rear Cross Traffic Alert (RCTA) system operation)
The Rear Cross Traffic Alert (RCTA) system detects vehicles approaching from the left and
right of your vehicle and flashes the BSM warning lights.
Function for cancelling illumination dimmer
If the BSM warning lights turn on when the parking lights are turned on, the brightness of
the BSM warning lights is dimmed.
If the BSM warning lights are difficult to see due to glare from surrounding brightness when
traveling on snow-covered roads or under foggy conditions, press the dimmer cancellation
button to cancel the dimmer and increase the brightness of BSM warning lights when they
turn on.
Refer to Dashboard Illumination on page 4-16.
4-90