Lexus 2012 RX450h Owner's Manual page 349

The Blind Spot Monitor detection areas
The blind spot that vehicles can be detected in are outlined below.
The Blind Spot Monitor is operational when
■
The BSM main switch is set to on and vehicle speed is greater than about 10 mph
(16 km/h)
The Blind Spot Monitor will detect a vehicle when
■
A vehicle in an adjacent lane overtakes your vehicle
●
Another vehicle enters the vehicles detection area when it changes lanes.
●
2-4. Using other driving systems
The range of the detection area
extends to:
Approximately 11.5 ft. (3.5 m)
from the side of the vehicle
The first 1.6 ft. (0.5 m) from the side
of the vehicle is not in the detection
area
Approximately 9.8 ft. (3 m)
from the rear bumper
Approximately 3.3 ft. (1 m) for-
ward of the rear bumper
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