2016 Buick Envision Engine problems

Buick Envision 2016 Mileage - 58315 One owner The car has had three events over the last year where it would not start. After the car is driven for awhile and after it's parked and turned off, it will not start. Everything in the car will function (windows, radio, door locks) but there seems to be a disconnect between the key-fob and the device that communicates with it. There is never a warning light or other indication this is about to happen. We tried to jump the car but it has no effect. If we wait twenty to...

The contact owns a 2016 Buick Envision. The contact stated while driving approximately 35 MPH, the vehicle inadvertently stalled at a traffic light. The contact received assistance from passengers nearby and pushed the vehicle to the side of the roadway. There were no warning lights illuminated. The contact started the vehicle again and it inadvertently stopped again and there were numerous warning lights illuminated, which the contact did not remember. The contact then disconnected the battery and reconnected it,...

On two separate occasions, we had had significant issues that were only fixed after the event occurred, at which time the dealership advised that software updates were available to resolve the problems we had. One involved the display screen/back-up camera which was very dark and difficult to see in the daytime, observed shortly after purchase in 2017 - a pretty significant safety issue. The other incident occurred last week, when the car died after starting it, as I was trying to pull away from the curb -...

When I push the push-start button, the vehicle makes a grunting noise, but it does not start. All the lights come on and stay on including the "check engine light." It has happened four times. It happened three times when the vehicle was parked in the garage, and once when the vehicle was at a parking lot. The vehicle has been towed twice to a dealer; however, after the vehicle is thoroughly checked, they don't find anything wrong with it. Apparently, there is no trace of the problem in the memory of the...