What 191 owners told NHTSA about the 2020 Chevrolet Malibu Eco

I am writing to formally report a critical safety issue with my 2020 Chevrolet Malibu, which resulted in a severe accident and posed significant risks to my safety and the safety of The issue involves the brake vacuum pump, which failed while I was driving. The component is currently with the vehicle, which is stored in a parking facility, and is available for inspection upon request. The failure of the brake vacuum pump caused a sudden and complete loss of braking power while I was driving. This malfunction put my life and the lives of others at immediate risk. On the first occasion, in April, I narrowly avoided a serious collision. Four weeks later, I experienced a second instance of brake vacuum failure, which led to a severe accident. The inability to stop the vehicle safely was directly caused by this malfunction. I contacted General Motors (GM) in April 2024 to report the initial brake vacuum failure. At that time, the issue had not yet been reproduced or inspected by a dealer or service center. Following the accident, I have been unable to confirm whether GM or any other party has The vehicle and component have not been inspected by the manufacturer, police, or insurance representatives since the accident. I reported the issue to GM prior to the accident, but they have not provided any assistance or resolution. Prior to the initial brake vacuum failure in April, I did not observe any warning lamps, messages, or other symptoms indicating a potential problem. The failure occurred suddenly and without warning, making it impossible to anticipate or avoid. This situation is incredibly distressing, and I believe the brake vacuum pump defect poses a serious threat to public safety. I urge the NHTSA to investigate this issue thoroughly and take any necessary steps to ensure the safety of other drivers who may be at risk.

NHTSA ODI 11628427

Shift to park issue . When the car is shifted to park, the system does not recognize the car is in park mode even though the stick is in Park. It starts beeping and that dash board screen shows SHIFT to PARK. It happened several times in October 2024. The dealer says it does not cover under the warranty and it has on 20000 miles and bought in 2021.

NHTSA ODI 11623613

Faulty Vacuum pump caused catastrophic engine failure. The vacuum pump exploded cracking the cam shaft sending metal shards into the engine. $12000.00 to repair and mechanic will guarantee the work because the replacement vacuum is an only OEM part. I was having braking problems prior to the vacuum pump failing. The brakes would intermittently freeze up and I couldn't get the car stop and had to use the emergency braking system to stop vehicle. Car is still at shop I can't afford the repair and I'm am still paying finance company for car. I have a disabled child and am low income. This has put hardship on me as I live in an area that does not provide public transportation. I don't know what to do.

NHTSA ODI 11622197

The contact owns a 2020 Chevrolet Malibu. The contact stated while her daughter was driving at 65 MPH, the contact's daughter was run off the road by another vehicle. The contact stated that the air bags did not deploy. The contact stated that the vehicle was forced to crash into the guard rail. The contact's daughter was knocked unconscious and sustained a concussion due to hitting her head on the driver's door glass. The contact's daughter was transported to the local medical center. The contact stated that a police report was not filed because it was a single-vehicle crash. The vehicle was towed to a local tow yard. The vehicle was deemed a total loss. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline and report the failure. The failure mileage was 94,073.

NHTSA ODI 11619365

Vehicle will say shift to park and also can't use the limp mode and manually shift gears and also can't be used outside of 1st and 2nd gear

NHTSA ODI 11616892

My car has the known shift to park error. Any time the car is put into park, it isn't registering as in park and won't shut down.

NHTSA ODI 11616537

My vehicle will not shut off. It states "shift to park". Sometimes it takes 30 minutes of trying to get the car to shut off. Since this began, we were on a road trip, it's causing issues with accelerating on the highway & I believe it's damaging the transmission. 2020 Chevy Malibu had other models under recall for this same reason. I called Chevy dealership & they said they cannot help me. They told me to contact General Motors. I have a [XXX] baby, I'm [XXX] & lost my job after maternity leave. This should be resolved as it's causing me anxiety to drive it with my child in the car. Please help me. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11614252

I keep getting a shift to park alert to my car when my car is in park. I have to wiggle my shift gear in order for it to cut off or play around with the way the car is park

NHTSA ODI 11614343

This car has problems when shifting to PARK. Sometimes it doesn't recognize its in park and wont shut off. There is a recall on this but when I look up my VIN it doesnt show a recall for my exact vehicle. Am I still able to get this fixed under the recall?

NHTSA ODI 11613378

My vehicle started to show a shift to park message. I took it to Firestone and they replaced the switch. This started happening again 2 weeks later. It is worse this time. It takes me several minutes to get my car to acknowledge that it is in fact in park.

NHTSA ODI 11613548

On [XXX] I was driving to work and my check engine light came on. Immediately after this I was completely unable to brake. My brake pedal became so stiff and impossible to press. I very narrowly avoided an accident. I had the car towed to an auto shop where I was informed that I had a vacuum pump failure that essentially exploded and destroyed my cam shaft and shot fragments of metal into my engine in the process. I was quoted over $12,000 in repairs. After receiving this quote I began searching online to find what could have caused this to happen. I stumbled upon a class action lawsuit for this EXACT same thing (plaintiff [XXX] ). In addition to the suit there were 12 PAGES of comments from other Malibu owners who have experienced similar issues with their vacuum pump and braking system. This issue is also noted on MANY car repair forums, Chevy owner forums, YouTube repair videos etc. Please note that when I received the check engine light on 9/5 this is the first and only time I had any indication of a potential problem with my vehicle. In the year and a half that I have owned the car there has never been any issues, warnings or check engine lights. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11613481

The contact owns a 2020 Chevrolet Malibu. The contact stated while the vehicle was parked, the shift to park error message was displayed. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but did not assist. The contact was advised to contact the NHTSA Hotline and report the failure. The failure mileage was approximately 68,000.

NHTSA ODI 11612882

The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as needed. The contact stated that the vehicle stalled prior to accelerating. Additionally, the check engine warning light was illuminated. The vehicle was taken to an independent mechanic where the vehicle was diagnosed with power train control module failure. The contact was informed that the power train control module needed to be replaced. The contact was advised to contact the dealer. The dealer was made aware of the failure. The manufacturer was made aware of the failure but provided no assistance. The contact was informed of an unknown recall campaign; however, the VIN was not included. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 77,765.

NHTSA ODI 11612896

The contact owns a 2020 Chevrolet Malibu. The contact stated while driving at approximately 25 MPH, the vehicle stalled. The contact stated no warning light was illuminated. Additionally, the contact stated that while shifting into park(P), the vehicle rolled backward before the contact could shift the vehicle into park(P). The contact had taken the vehicle to a local dealer, where it was diagnosed; however, the contact stated that she was not notified of what had been repaired. The contact stated that the failure reoccurred. The contact drove the vehicle back to the same dealer. The vehicle was not diagnosed and was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 70,000.

NHTSA ODI 11612249

Car is indicating "Shift to Park" after placing in park and turning off. Unable to lock vehicle. Lights remain on. Took vehicle to dealer though it's a widely known issue I will be required to pay? Transmission was replaced at 35K due to manufacturing defect. Every 20k miles I'm going to have more transmission issues? It's just not right!

NHTSA ODI 11610676

I was driving down the road and the car started slowing down and even when I would give it gas wouldn’t accelerate. After pullling over and allowing the cars behind me to pass I tried to pull back out into traffic and the car would not engage into gear. When giving the car gas it didn’t move. I shifted the transmission into park and tried shifting into every gear including reverse and the car wouldn’t go anywhere I had to sit in the road for about 20 minutes then the car shift very hard into drive and began accelerating. Now when trying to drive it every time it stalls out either when first trying to back up or take off or decelerates while driving down the road making me fearful for my life due to being hit from behind sue to no notice or warning before the car decelerates

NHTSA ODI 11610353

When I turn my car off it tells me to shift to park when it’s already in park

NHTSA ODI 11609855

The problems listed in my vehicle are the following • U0073: Control Module Communication Bus A Off • U0100: Lost Communication With Engine Control Module • U0121: Lost Communication with Electronic Brake Control Module • U0140: Lost Communication With Body Control Module • P0700: Transmission Control Module Requested MIL Illumination I believe this is due to a bad design in the wiring. Also the electric brake vacuum broke which is a common problem.

NHTSA ODI 11607742

The contact owns a 2020 Chevrolet Malibu. The contact stated while the vehicle was parked, the contact attempted to exit the vehicle; however, the shift to park message was displayed on the instrument panel. The Push to Start button was illuminated. The vehicle was driven back to the residence. A dealer was not contacted. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not under recall and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 51,000.

NHTSA ODI 11606597

Yes my car has just started to displaying a shift to park message on the message center when you shift the car into park. I know there are recalls on 2016-2019 Malibu and now it’s doing it on my 2020. Come on Chevy

NHTSA ODI 11606221

So far it is only once in a while when I shift into park and turn off the engine the ‘Shift to Park’ message will be displayed in the dash. Sometimes I can jiggle the shift lever a little to make it go out, other times I have to start/stop engine , shift out and into park several times to make it go out. I don’t want to leave the vehicle without making sure it’s in park. I read in another complaint that the doors won’t lock, and that it goes into accessory mode and could drain the battery down if left that way, but I did not check if that happens on my vehicle. It just started doing this a few weeks ago. I have not contacted the dealership yet, but I understand that GM has put out a recall on the Malibu and other models concerning this issue. I am hoping it will cover my VIN. number soon. Thank you for taking time to read my complaint.

NHTSA ODI 11601594

The contact owns a 2020 Chevrolet Malibu. The contact stated while attempting to shift into park(P), the gear shifter failed to function as intended. The message to shift into park(P) was displayed. The vehicle was taken to the dealer; however, the vehicle was not diagnosed or repaired. The contact stated that the failure had previously occurred; however, the failure was diagnosed as an electrical failure and the vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 20,000.

NHTSA ODI 11599222

engine misfire, shift to park and transmission

NHTSA ODI 11595728

There is a message that’s pops up on my dashboard when I cut my car off saying “car not in park” when I have in fact put it in park. I have to jiggle and constantly press the gear shift in order for the message to go away .My safety was fine , I’m just scared that I may not see the message and my car could potentially start rolling backwards or forward. My car has been doing this for about 6-8 months .

NHTSA ODI 11595296

The contact owns a 2020 Chevrolet Malibu. The contact stated that the vehicle was parked and while attempting to turn off the vehicle, the message "Shift to Park" was displayed. The contact shifted out of park(P) and shifted back to park(P) several times until vehicle responded as needed. Additionally, the contact stated that the failure recurred while her daughter had attempted to turn off the vehicle while the vehicle was parked. The contact's daughter was unable to successfully shift to park(P) and allowed the vehicle to turn off independently after a while. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 56,000.

NHTSA ODI 11594412