Car Accelerates On Its Own Problems of Nissan Leaf

While I was accelerating to 60mph from a stop light on us 287 and isabelle road in boulder county, colorado, the car continued to accelerate uncontrolled to over 70. Accelerator pedal seemed to not work at all. I braked and slowed down but it was fighting the maximum acceleration. I tried pumping the brakes and kept slowing down and the car lost all engine power and seemed to brake itself. I pulled over to the side and turned off the car. Turned it back on and all seemed normal. I am concerned that others may panic in this situation and not be able to control the car. The 2015 Nissan Leaf I drive has 31,000 miles on it now and has had all updates and services.

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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.

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Tl- the contact owns a 2015 Nissan Leaf. The contact stated while merging onto a highway the accelerator pedal was stuck which resulted in unintended acceleration. The contact was able to regain control by depressing the brakes. Prior to this failure the vehicle experienced the same failure of unintended acceleration. This failure happened without warning. The vehicle was not taken to the dealer or independent mechanic to be diagnosed or repaired. The manufacturer was notified of the failure. The vehicle failure mileage was 6,062. Kh.

The contact owns a 2012 Nissan Leaf. The contact was parking the vehicle with his foot on the brake pedal when the vehicle suddenly accelerated. The vehicle went over a curb and crashed into a bush. The vehicle was taken to the dealer for diagnostics and the manufacturer sent an engineer to inspect the vehicle. The engineer was unable to diagnose the failure. The vehicle was not repaired. The approximate failure mileage was 2,500. . . Updated 08-27-12.

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