general problems of the 2017 Infiniti QX60

The vehicle shudders and the transmission shifts up and down and has a high squeal when driving. The transmission does this cold and at operating temperature.

Unexplained acceleration caused vehicle to exceed posted speed limit and driver's desired speed. On a city street at approx 7pm I was increasing speed after sitting at a stop light, I slowly started to accelerate, I felt a jolt & vehicle suddenly picked up speed. Not knowing why this was happening I repeatedly pushed the cancel button on the steering wheel & pushed the brake pedal. Vehicle continued to pick-up speed when I stopped pushing brake pedal. I came to a complete stop & vehicle went to picking up quick speed without me pushing accelerator pedal. I pulled into vacant parking lot, put vehicle in park, removed my foot from brake pedal & vehicle accelerated high (rpms) by itself for a few seconds & stopped (went to normal idling). I turned vehicle off, restarted & the vehicle drove normally afterwards. I have reviewed owners manual & can't figure out what I may have done to cause the unexpected vehicle acceleration that pushing the cancel button on the steering wheel and/or pushing the brake pedal wouldn't turn off. I was not attempting to use speed control functions of the vehicle. Standard driving. I believe it was a vehicle malfunction and not driver action that created this unsafe situation. Thankfully surrounding traffic was light on what is typically a busy street.

I accelerated the gas pedal all the way down while merging to the carpool lane on highway; I took the foot pressure off after merging the lane but car was kept on accelerating. I had to apply the brake several time during 15-20 seconds of this experience to bring the high acceleration down to normal. I took it to ontario California Infiniti dealership on Aug 8, 2020 and left the vehicle there for thorough checkup. I received a call on Aug 10, 2020 from dealership service representative that they could not reproduce the issue.

The engine shut down while driving. There where no warning lights. We where told that the car had a faulty abs sensor and that caused the car to go into "failsafe" mode. This is the second time this had happened in 10 months.

When starting up after a complete stop, the vehicle will surge. It also happens when you put the car into reverse. The dealership stated they had experienced the same problem and had to replace the transmission. Drove our vehicle in the parking lot but could not recreate the problem so would not do anything further. I feel this is a safety risk. This has happened on numerous occasions.