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Blind-spot warning (BSW)

How does a blind-spot warning system work?

A blind spot warning system uses sensors to look for other vehicles around the car – which might be in a driver’s blind spot and not covered by one of the car’s mirrors. It then warns the driver that another vehicle is in a position that could be dangerous if they decide to change lanes. The warning is usually a flashing light, perhaps in the wing mirror, or a loud beep.

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