Simply put, the technology allows for the turn signals to be automatically shut off after the switch has been activated. This helps prevent annoying blinker flashing on the car, as they prove to be very disturbing for drivers, especially at night.
“Most drivers have found themselves behind cars that have their signals on after changing lanes,” Jim Thomas, senior vice president of RDA Group, who conducted a survey on the most annoying road habits.
“This can be confusing because there is no way of knowing if the signal is a real indication of an upcoming turn or not. To reduce this confusion, drivers want vehicles to automatically disengage the turn signal after making a lane change.”
If needed, the switch can be held in the lane change position longer for additional blinks beyond the three minimum. To engage the turn signal, drivers move the switch into the standard position, one more press past the lane change mode.
“This allows the driver to let go of the switch and concentrate on driving,” John Murphy, Core Switch Product Engineer added. “Instead of holding down the switch, they can give a quick tap, show a three-blink warning that they are about to merge and change lanes. It’s that simple.”