2020 Chevrolet Malibu power train problems

“The vehicle's transmission shifter mechanism has failed for a second time, preventing the vehicle's computer from communicating with the gear shifter. When shifting the physical gear lever forward into the "Park" position and attempting to shut off the engine, a warning message reading "Action Required: Shift to Park" appears on the driver instrument dashboard display.This exact failure previously occurred in 2022, two years after purchasing the vehicle. It was formally repaired and covered under an extended warranty policy. However, the underlying manufacturer defect has recurred, proving that the extended warranty repair did not permanently resolve the systemic design flaw.The vehicle was contacted, and an authorized service dealer location in Phoenix, Arizona was notified of the recurrence. The dealer advised that because the vehicle is no longer under warranty coverage, the manufacturer will not cover the repair, and it must be paid entirely out-of-pocket. This creates an unfair financial burden as the vehicle is nearing its final loan payoff timeline at the end of the year. The component is still installed in the vehicle and available for inspection upon…”

“The contact owns a 2020 Chevrolet Malibu. The contact stated that while attempting to shift the vehicle into park, the transmission failed to shift into park after several attempts. The contact referenced TSB: 19-NA-206; as a possible cause for the failure; however, the VIN was not included in the TSB. The vehicle was taken to a dealer where it was diagnosed with gear shifter failure. The gear shifter was replaced, and the vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 50,198.”

“While attempting to enter a high-speed expressway, the transmission malfunctioned, preventing normal acceleration. The vehicle could only accelerate very slowly but managed to maintain a limited speed, creating a hazardous situation while trying to merge into fast-moving traffic. I was able to navigate the vehicle off the expressway, at which point the transmission completely failed and the vehicle died. The vehicle was towed to an authorized dealership service center, where technicians diagnosed a total internal failure of the CVT transmission requiring complete replacement. Mind you, the vehicle is under 6 years old and has fewer than 90,000 total miles, and this is the second time the transmission on this vehicle has suffered a total failure and required a complete replacement. Prior to this mechanical breakdown, there were no warning lights, abnormal symptoms, or performance issues indicating an impending transmission failure. The vehicle is currently available for inspection.”

“Several things have been going wrong with this car. I have only had it for about 7 months. Minimal driving. Got the car with 84,000 miles and it now has 88,000 miles. About 2 months ago the check engine light came on. Got it into a shop and they said an oil change may possibly help with this. Got the oil change, cleared the code, drove it around and check engine light came back on. Brought it back to the shop and now the entire valve cover needs replaced. It’s been about 2 weeks since then haven’t had it fixed due to low funds. A couple days ago I was driving with two [XXX] olds in the car and was at a stop light. After about a minute the cars engine turned completely off lost all power including the center screen that displays your settings and radio, all lights, and the screen behind the wheel all with my foot on the break at a stop light. Due to this situation I was unable to turn my hazards on to alert the cars coming up being me at a green light absolutely panicked that we were going to get into an accident. A little while after the car turned back on, but unfortunately when trying to push down on the gas pedal nothing was happening. No revving sound and…”

“The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving at 35 MPH, the check engine warning light illuminated. While the vehicle was stopped at a traffic light or a stop sign, the failure was more noticeable. The contact stated that the vehicle jerked abnormally and failed to accelerate as intended while depressing the accelerator pedal. The RPM fluctuated before the transmission slammed into gear. The vehicle then returned to normal functionality. The vehicle was taken to the dealer, where it was diagnosed and determined that the turbocharger had failed and needed to be replaced. The vehicle remained at the dealer unrepaired. Prior to the most recent failure, the contact stated that while her daughter was driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal, and the vehicle failed to function as intended. The vehicle was towed to the dealer; however, no cause for the failure was found. The manufacturer was not notified of the failure. The failure mileage was approximately 77,000.”

“This is a 2020 Malibu with only 18,000 miles on it now. We are having intermittent loss of power. Car will be moving fine when suddenly it looses power when pulling into traffic from a stop. It has also happened on the highway(right after leaving the dealer service department) when going to pass a vehicle…all of a sudden power drops and rpms go up and car slows up. When it suddenly happens, pulling into traffic is very slow. The only way to get power back is to turn off traction control via a button. It is back at the dealer now. They have had it the last two weeks. They fixed a shift to park issue but cannot duplicate the loss of power. So they are saying it is ready to pick up. Once, recently, a check engine light come on along with a message saying something like low power mode. We went straight to the dealer with the vehicle. They had the car for three five out of six weeks and were able to duplicate the loss of power once. We wanted them to contact Chevy to help resolve this, but we are unsure if they actually did. These problems first were serviced in April of 2024. This car is very scary to be in, the way this happens and when it is happening.”