The sensors monitor the zone to the side and rear of the car on both the left and the right. In so doing, they cover the area known as the "blind spot" which drivers are unable to see in the ...

(Read: The danger of blind spots.) Many new cars have proximity sensors that beep with increasing frequency when you back toward solid objects. The sensor systems might work well as parking aids ...

Blind-spot monitoring, for example, helps keep you from hitting an unseen car when changing lanes. A forward-collision warning system signals if your car is in danger of striking one in front.

Just as drivers should when merging onto the highway or backing out of a parking spot, investors should be checking their blind spots when considering factors that can impact wealth accumulation.