Brake Sensor problems of the 2012 Nissan Leaf

I have observed the transient grabby brake syndrome in my Leaf during cold weather months in the past couple years. I complained to my Nissan dealerships service department a couple times about it, but the problem could not be replicated at the time. I also noticed on the energy screen that the regenerative braking was cycling between 10 and 20 % coincident with these brake intensity pulsations. It only happens when I am lightly braking with very steady light pressure on the brake pedal. I suspect a possible cause to be the sensor that determines brake pedal position for the regen braking may be defective or non-linear at some portion of the travel, or the regen braking program may have a problem, or the hydraulic braking system has a faulty component and the regen system is just responding to the cycling between hard and light braking. In any event this problem may be feeding other braking problems that I have read about here, so should be investigated by Nissan to find a fix so as to prevent injuries or fatalities.

Tl-the contact owns a 2012 Nissan Leaf. The contact state that while driving 55 mph, the brakes failed without warning on several separate occasions. The vehicle was taken to the dealer for diagnosis where it was stated the brake sensors needed to be replaced. The vehicle was repaired but the problem persisted. The manufacturer was notified. The VIN number was not available. The approximate failure mileage was 14. St.