Bsm Function - Lexus RX 450H Owner's Manual

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4-5. Using the driving support systems

BSM function

The BSM function uses radar sensors to detect the following vehicles traveling in
adjacent lanes and advises the driver of the presence of such vehicles via the
indicators on the outside rear view mirrors.
Vehicles that are traveling in areas that are not visible using the outside rear
1
view mirrors (the blind spots)
Vehicles that are approaching rapidly from behind in areas that are not visible
2
using the outside rear view mirrors (the blind spots)
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