What 191 owners told NHTSA about the 2020 Chevrolet Malibu Hybrid

A few days ago, when I put the car in park and turned it off, there was a message on the screen saying "Shift to Park." It was in park. I could not get out of the car because it was still getting power. If I tried to lock the doors, it sounded the alarm. I had to turn the car on and off multiple times to get it to go away. It would've drained the battery if I'd left it. Who knows if it was really in park either. It's been doing it ever since. I called the dealer and they want $350 to fix it. The guy told me they've been seeing this on Malibu's and "now it's happening on the Traverse models, too." I've been reading online how this has been happening since at least 2016, but there is no recall. Why NOT?? This is dangerous and they're aware of the problem. They've issued service bulletins on how to fix it!

NHTSA ODI 11473941

The shifter gear control/ shifter assembly keeps failing on and off. It’ll give me a warning shift to park. It did this while drive on a major highway then my car loss all power as I was in the second lane causing so much safety concerns. It is also alerting me when I’m in park now that I need to shift to park more frequently. Extreme issue.

NHTSA ODI 11470017

The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving at various speeds, the vehicle would intermittently hesitate and stall with the traction control and check engine warning lights illuminated. Once the vehicle stalled, the contact had to wait a few minutes before successfully restarting the vehicle. The vehicle had been taken to the dealer on multiple occasions however, the mechanic was unable to duplicate or determine the cause of the failure. The contact had the pistons, battery terminal, transmission, and wiring harness replaced; however, the failure persisted after each repair. The manufacturer was notified of the failure and referred her to the NHTSA for assistance. The vehicle had yet to be repaired. The failure mileage was unknown.

NHTSA ODI 11469643

I need my pistons and rings replaced. My car only has 57,000 miles. My car has been diagnosed with excessive piston blowby from 2 different independent service centers. Both times I have been to Chevy to get it fixed under warranty, they’ve charged me $200 for diagnostics each time and told me it is my PCV valve that needs fixed. I had them fix my PCV valve and I still have excessive piston blowby. Chevy just wants to keep bringing my car back in for more diagnostics. I have spoken with GM customer service 2 times and somehow every single time I give them my VIN they hang up. My car is a 2020 with only 57,000 miles on it. There’s absolutely no reason why I should need all new pistons and rings and why Chevy service centers won’t just get it done! I have diagnostic reports, receipts, and videos of everything.

NHTSA ODI 11456916

1. Something under the car hood is making a whistle type noise. Is available for inspection. 2. I don't know if it is a safety risk. 3. The problem has not been confirmed by the dealer. 4. The vehicle was inspected by the dealership. 5. There were no warning lamps on or anything. The whistling appeared under the hood around May 23,2021. 6. The whistling appears under the hood of the car after driving it approximately 30mins with the air conditioner on. 7. I took it to the dealership and they seem resistant to fix the problem!

NHTSA ODI 11430765

The vehicle will randomly shut off while driving. All warning lights light up on the dash and notification of "reduced steering" pops up. Taken to the dealership and has been there for 19 business days. They will fix a component, I have picked it up twice and it has shut off before I could even get home forcing me to tow it back. This last time they were bringing the car around and it shut off in their own parking lot before they could even give me the keys. Every time they run diagnostics it's a new code. Vehicle is unsafe to drive due to shut-off and loss of steering.

NHTSA ODI 11421177