Toyota Highlander Owners Manual: Bsm (blind spot monitor)

Pcs (pre-collision system)

When the radar sensor detects that a frontal collision is highly likely or even unavoidable, safety systems such as the brakes and seat belts are automatically engaged to lessen impact as well as v ...

Summary of the blind spot monitor

The blind spot monitor is a system that has 2 functions;  the blind spot monitor function assists the driver in making the decision when changing lanes  the rear cross traffic alert ...

More about Toyota Highlander:

If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or flashes. If a light comes on or flashes, but then goes off, this does not necessarily indicate a malfunction in the system. However, if this continues to occur, have the vehicle inspected by your toyota dealer. Warnin ...