Brake Sensor Problems of Nissan Leaf

Nissan propilot has a serious safety flaw. When using propilot on my 2018 Nissan Leaf sv in stop and go highway traffic, sometimes when my Nissan Leaf coasts to an almost complete stop 15 feet behind a "boxy" vehicle like a semi-truck, the Leaf suddenly accelerates like if there is no vehicle directly in front of me and if I am not completely attentive and if I do not immediately apply the breaks, the Nissan Leaf would rear end the semi-truck. This has happened to me 4 times over the past 6 months when following a semi-truck with trailer and this morning it occurred again a fifth time but this time I was behind a sedan. I have a dashcam video of the incident from this morning. I have reported this issue to Nissan but they have done nothing about it. I have taken my 2018 Nissan Leaf in to the local Nissan service center but they say there is nothing wrong with the sensors and they do not see any issues and no error codes reported by the car. I believe this is a software problem where the software ignores the radar image of the truck in front because it thinks it is an overhead sign and not another vehicle immediately in front, the camera input of the vehicle in front also appears to be ignored by the software in this situation. Additionally, I have had at least two incidents (also occurred this morning) where propilot lane keeping feature shuts off and automatic emergency breaking is also shut off and deactivated for and extended period of time for now apparent reason (in excellent weather and clear conditions, no obstructions of sensors, etc. ), I have video of this as well.

See all problems of the 2018 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.

See all problems of the 2012 Nissan Leaf 🔎.

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.