2016 Chevrolet Impala Limited power train problems

“I am filing a complaint regarding ongoing and worsening issues with my Chevrolet vehicle, which appear to point to broader defects involving the engine and electrical systems. Months ago, while driving, the car suddenly lost power and displayed "Engine Power Reduced." I had to keep using it due to work needs. Over time, it hesitated more during acceleration and felt increasingly unsafe. When I finally brought it to a Chevrolet service center, I was told the issue involved the pistons. The vehicle also regularly shows a "Shift to Park" warning even when the gear is in Park, raising concerns about the transmission's reliability. The power loss continues, especially when going uphill — again triggering the "Engine Power Reduced" alert and dropping the speed to no more than 35 MPH. A diagnostic showed a P0302 code for a cylinder 2 misfire. The radio head unit, already replaced once under warranty, failed again after just 9 months. Prior to the worsening idle and gear issues, I also received network-related codes involving the ECM and transmission computers. Although I’ve replaced the alternator, the car still shows "Service Electric System" warnings, suggesting…”

“The contact owns a 2016 Chevrolet Malibu. The contact stated that after shifting to park, the message to shift to park was displayed. The failure occurred intermittently and had become more persistent over time. The vehicle was not taken to the dealer to be diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 130,000.”

“Car showing warning : engine power reduced Car decelerate unexpectedly Car won’t accelerate past 20 mph intermittently - when putting car in park, car won’t recognize when in the park positioned and shows warning : shift to park”

“The contact owns a 2016 Chevrolet Malibu. The contact stated that occasionally while shifting into park(P), the computer failed to register that the vehicle was in park(P). The message "Shift to Park" was displayed on the instrument panel. The contact stated that during the failure, the doors failed to lock. No warning lights were illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was informed that the shifter, shifter harness, and shifter switch needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 47,000.”

“I am writing to formally lodge a complaint regarding an ongoing issue I have encountered with my 2016 Chevrolet Malibu. Recently, I experienced a significant problem with the vehicle’s trunk and rear seat release mechanism, which has made it impossible for me to access the trunk or fold down the rear seats. The specific issues I am facing are as follows: Trunk Latch Stuck: The trunk latch has become stuck, and I am unable to open the trunk manually or with the remote key fob. The latch mechanism appears to be malfunctioning, and it will not unlatch when attempting to open it. Remote Key Fob Failure: The remote key fob, which is typically used to release the trunk, no longer works, making it impossible to access the trunk from outside the vehicle. Seat Release Mechanism: Additionally, the release button for folding down the rear seats is also not functioning, and I cannot lower the seats from inside the cabin. Typically, this release mechanism can be accessed from the trunk; however, due to the trunk being inaccessible, I am unable to release the seats, which is an urgent issue. This situation is highly inconvenient and concerning, as I rely on the trunk and…”

“A couple days ago I went to drive my car and it took a second to actually turn on and it was shaking way more than usual and pooped up with a message saying “engine power is reduced” I haven’t drove my car since because i tried and it was moving very slow, and i also didn’t wanna cause further issues. For some time now my car has been shaky. i have taken it in and balanced my tires because of this issue and nothing had helped. I am always scared to drive it because it has been so shaky but now that this message has popped up it’s even worse and it’s during my whole drive. Also every time i park it isn’t connecting and says “shift to park” even though it is shifted into park. i have to shake it and press some button to go all register that it is shifted into park and can shut my vehicle off. I have read every where that this issue has happened to so many 2016/2017 chevy Malibu’s. I have read the dangers and i do not feel safe driving my car like this. I also didn’t have my car when there was a recall on this exact part before. and i’m guessing the dealership who had it before me did not fix it, causing the problems to worsen other parts of my car. I can’t drive…”