2015 Infiniti Q50 Engine Problems

“On numerous occasions while in motion at various speeds the vehicle will audibly alert, brake, steer, and deaden throttle response. These are related to enhanced safety features of the vehicle. The problem is that these occur when there is nothing to avoid or any danger present. These have occurred at high speeds and in situations where they could have caused an accident. My local dealership blamed all issues on the placement of an ez pass transponder. I find this to be completely absurd. Infiniti customer care will not assist. …”

“Engine and/or transmission lost torque power. Since 2016 while car only had 11,000 miles all of the sudden car lost torque power while accelerating. Check engine indicator has never light up and dealer consult scanner has never found the issue. Still car doesnt have same acceleration nor torque while going 0-60mph. Already I've seen so far 4 cars of the same year with speed sensor problems and replacement. Mechanics say it begins by loosing power until stops working and car wont move.”

“My car pause and jerks then stops. This is the second time this has happened after being fixed. The mechanic said they had a recall on the 2016 models for this but not the 2015 but had to correct many of the 2015 models. The check engine light came on after it stopped. I was on the interstate the last time when it stopped. I am afraid that it might happen again without any warning. This is a life threatening defect that Infiniti needs to correct asap.”

“4/16/2023 Sunday 5pm With my wife and daughter in the car, I started the vehicle in my driveway and selected Sport mode as usual. Selected reverse and backed into our turnaround then forward to the end of our driveway. Driveway is approximately 4 car lengths long with a 20 ft long apron turnaround. Almost immediately after braking at the end of the driveway while waiting for passing traffic to exit drive, vehicle suddenly accelerated and I immediately pressed the brake as hard as I could to prevent driving into passing vehicles. …”

“The valve body on these cars are useless. Driving down a highway and cant shift out of 3rd gear almost had a car re-end me. Today I am driving and the ECU is not responding I see the check engine light on then I'm like not again. This would be the 3rd valve body I replaced. First I replaced the whole transmission thinking that is what I needed and advised that the valve body and the transmission are one. Yet no they come in parts. Anyways today I am waiting to get home, but the car is not reading my key fob why? Then the ECU and code U0100 is popping up. Something new and turns the car off. …”