Adaptive Cruise Control problems of the 2018 Nissan Rogue

When I have cruise control activated, for example, at 65 mph, the engine transmission seems to keep shifting gears up and down and does not maintain a steady pace and slowing down/speeding up and shifting constantly. It is to the point that I will not use the cruise control any longer. It has happened each time I have activated it and I am inquiring if it is a commonly reported issue.

Driving east on I-94 near battle creek, mi at highway speed in cruise control with my wife and 3 year old granddaughter the brakes applied hard. Had to stand on the gas and was fighting the brakes brakes that were still applied to get back to 60 to keep from being run over. Pulled over and shut it off. Found icing on the front sensor. Restarted car and fault cleared. Proceeded on highway and it worked for a bit but fault showed up again but without the hard braking. Shut off the auto braking which also shuts off cruise control. It was snowing some on that trip. Our return trip the next day it was sunny and we had no problems. The instrument panel has a fuel mileage history that shows up when you shut the car off. It showed 10 mpg for that short stint when we had the problem, otherwise 26 mpg for all the other stints. The vehicle was taken to cole Nissan in kalamazoo, mi where they had it for two weeks. We described how the instrument light would flash on and off sometimes before this, but had never applied the brakes like this. When we went to get the car we were told that there was no code set and they tested the sensors and found nothing wrong. Interestingly, we didn't get any sort of service report or paperwork. Does that mean they aren't reporting it? the service guy told us something about the transmission being in too low of a gear and they didn't find a code that the brakes had applied. Makes no sense. This car should not react to snow on the front of the car by locking the brakes or "downshifting". This is an unsafe condition that should be addressed by Nissan.

I recently purchased my 2018 Nissan Rogue in August of 2020 and as of March 2021, I've had 5 instances where the front radar system for the cruise control feature malfunctioned while driving on the highway. The front radar sensor is part of the intelligent forward warning system in Nissans and its job is to detect the distance between vehicles. The sensor is tied to the cruise control and emergency braking system. The fault consists of a front radar obstruction warning light malfunction illuminating leading to the disengagement of the cruise control feature (if engaged prior to the malfunction) or the cruise control feature and the emergency braking system becoming disabled. Also, when the fault appears, the brakes are abruptly applied before being released which is a very serious safety issue especially when driving during inclement weather as your relying on the integrity of your braking system. I took the vehicle to my local Nissan dealership and they mentioned that there were no current recalls in place for this particular issue and that the system would need to be updated with the latest software update to see if the problem is corrected. I was told that I would have to pay approximately $150 to install the update to the system, which to me should be covered by the company due to implied safety issues. I was surprised to hear that a recall was not in place for this system, considering this has been a known issue since 2014 and yet the Nissan company has yet to issue any type of safety recall for the Rogue models, hence my safety complaint. I fear that if this problem isn't corrected soon an unsuspecting driver could get hurt!.