the car lost power in the middle of the freeway -and decelerated; in a highway with speed limit of 65mph while driving in I-680, all of a sudden the car slowed down from 65mph all the way to less than 20mph - displaying "power reduced - 0% battery" ; even it was recently fully charged - I was able to drive the car - back at 20mph speed - went straight to the Nissan dealer/service - where I left my car - and. was given a loaner car. the warning lamp ONLY appeared as soon as the car decelerated / slowed down

- San Jose , CA, USA

My Ariya lane assist almost crashed me outside Philadelphia on I-76 (a notoriously congested and hazardous road). My hands got sweaty (I have sweaty palms, it's a medical condition) and it suddenly couldn't detect my hands. It quickly went into the "retake control" alert and I tried tapping the break to disengage it but that didn't do anything because it thought I wasn't driving the car so it kept the locked up lane assist on. I had to take my hands off the wheel, dry them, and then grab the wheel over and over until I found a dry enough spot for it to detect my hands. I figured out the fault, and why different people have different experiences. It's based on how moist your skin is and how sweaty your hands are. It took a couple trials to figure it out. I think it also uses back-force on the wheel to some extent, but mostly it's the capacitative sensor. I also tested if it would detect at different pressure levels when your hands are sweaty but that doesn't seem to matter. In addition turning the wheel ALSO doesn't help so you can be fighting for control of it when the system refuses to de-activate and is steering you into a bad place due to a left exit or something with traffic bearing down on you from 3 sides. This is extremely dangerous and using a system that fails IF YOUR HANDS AREN'T EXACTLY THE RIGHT LEVEL OF DRY/WET is absolutely something that needs to be recalled and replaced.

- Phoenixville, PA, USA

The car has a digital speedometer that can be switched from MPH to KPH through the settings (but it takes several steps) but one day my wife was driving and the units had switched and she didn't know so was not driving at the expected speed. I know of no "shortcut" to switch it quickly. I posted the question on an "Ariya forum" and at least 6 other owners said they experienced similar.

- Gloucester, FL, USA

Car abruptly changed from mph to kmh. All safety aspects stay in mph, including speed limit and alert. So while on highway going 65mph, suddenly speed said 116kmh. But speed alerts were still saying -??65-??. Pro pilot on and car abruptly slowed down towards 65kmh on highway. Only way to change mph to kmh and back is to have car at complete stop, scroll to menu on steering wheel. Click it. Scroll to language. Click that. Click three more times. These options are completely locked out while the car is moving. Due to the danger of this happening on the highway, nearly avoiding getting rear ended, took to dealer. They reported nothing wrong. Reported to Nissan who said nothing wrong. Happened again today, not on Highway luckily. There are online posts of this happening with other Ariyas, but not on Highway. Again, if wanting to do this on purpose the car must be stopped and at least five explicit actions. Moreover, the safety measures on the car do not discriminate units, only numbers which makes this go from an annoyance to something that almost caused a high speed accident. Nissan has again been made aware, but lacks responsiveness.

- Dallas, TX, USA