The brake pump in my 2020 Chevrolet Malibu LT 1.5 malfunctioned on 05/25/2024. My car had approximately 85,193 miles on the odometer when this occured. I was driving down the interstate on 05/25/2024 when I went to apply the brake pedal and it was completely stuck. I had to swerve into the grass on the side of the interstate to avoid collision. After I had the car towed home, I had a mechanic run a system diagnostic test on the car which showed an error/defective code for the brake pressure sensor.

- Port Saint Lucie, FL, USA

Brake vacuum pump locked up causing camshaft to twist and reluctant wheel to turn which damaged the engine. I'm being quoted $10,000 to fix which was actually $1,000 more to fix but they accidentally under quoted me and have to honor the original estimate. I don't have that kind of money and still owe almost $14,000 on the car.

- Bells, TX, USA

The power train may be defective. The auto shut off on the vehicle completely shuts off when you stopped at a red light. The entire vehicle restarts, and then 12 lights appear on the dashboard. The car starts shaking sometimes when it's being driven. The vehicle is currently being looked at, at the dealership. I was told that the diagnostics is reading 19 codes and misfires.

- Washington , DC, USA

While driving on expressway, vehicle slows down suddenly. Service ESC, power steering, and engine light comes on and car tuns off. This has happened 8 times in two years with no fix from GM. This happens with no warning the car just stops driving and loss of power steering occurs. The dealership has tried to fix 8 times now with no real fix to the issue.

- Southgate, MI, USA

I purchased a brand new, 2020 Chevrolet Malibu in March of 2020. The car had 90 miles on it when I purchased it. Those 90 miles were on it due to it being driven to me from Illinois because the dealership in Illinois had the exact car and color I wanted. In late 2020 I started having reduced engine power. The car would mis fire, randomly lose engine power and only allow me to drive below 40mph and the check engine light would come on. Early 2021, I kept having these issues and called the dealership where I purchased the car and they stated that the throttle body was bad. The throttle body was replaced along with a new hose clamp for the hose that connects to the turbo. I have continued to have the same issues since then. When accelerating above 4000rpm's, the car will stall and say "Engine Power Reduced." This causes the engine to completely stall and has almost caused me to be in numerous accidents. I called the dealership and they came and got my car from my house with a truck and trailer. I was advised to not drive it because one of the codes was "Engine Oil Pressure Circuit Stuck Closed." They picked it up on Monday, 10/2/2023. The next day, 10/3/2023, they called me with a diagnosis. Cylinders 3 & 4 were showing over 1,000 misfires, engine oil pressure circuit stuck off, engine oil pump pressure, and an under boost code. I was informed that my spark plugs may be bad. Turns out, according to them, it needed new spark plugs. The spark plugs and air filter were replaced costing me $500 on top of the $600 that I paid for the new throttle body and hose clamp for the turbo. I got my car back last Wednesday, 10/4/2023. Today, 10/10/2023. The dash said "Engine Power Reduced", the engine stalled, and I was almost hit again because my car would not accelerate. This is a common problem with Malibus and it is a serious safety risk! GM had a lawsuit against them in 2018 for this SAME ISSUE with Malibus. GM needs held accountable BEFORE a life and/or lives are lost!!!!

- Crawfordsville, IN, USA

I was driving down the hwy and all of a sudden, my engine lost power and my brakes harden. I could not brake and nearly lost my life and my sons.

- Oxford , MS, USA

This issue started at approximately 19,500 miles. While accelerating to enter a highway or to pass a vehicle going less than 55mph on a two-lane, Service ESC light appeared on dash. Loss or power was also immediate and if I tried to accelerate to maintain speed, engine was very rough in responding with no acceleration. Engine continued to run. Within 30 seconds or so, acceleration is restored, and check-engine light was flashing. Check-engine light stopped flashing after a minute or so. Initially, this only occurred occasionally during fast acceleration as mentioned above. Lately this has happened during continuous acceleration, such as using cruise control, while climbing a low incline hill (~15?). Over the past year or so, Chevy dealer has replaced, pistons, fuel injector, and did a carbon cleaning of engine. No solution yet.

- Richwood, OH, USA

Car has stalled out, or acted like it's going to stall out several times. No check engine light on so unable to identify the issue. There are recalls for other Malibs for similar problems, but it states this model is not affected.

- Indianapolis, IN, USA

The ingine turns off while driving.

- Sulphur, LA, USA

The vehicle goes to ESC mode loses power an all gauges go frantic. All warming lights come on and the brakes go stop working. Speed decreases while in motion, unable to go past 40 mph. Warning messages such as put car in park will appear while the car is in park, steering unstable, low fuel a many others. This is a hazard and I only had the vehicle for 1 year, however I reported the first issue in April 2023 to dealer of purchase an no fix at this time.

- Memphis, TN, USA

I purchased a 2020 Chevrolet Malibu with 38,000 miles. I experienced a faulty air vacuum pump (first experience was at 45,000 miles and was replaced in August of 2021, two months after purchasing the vehicle in June of the same year), and then the replaced air vacuum pump again in February of this year (2023). This issue being brake related was unsafe. I experienced an intermittent reduced engine speed message on dashboard, with immediate reduction of speed down to 20 mph or less while driving. This made me and others unsafe. I experienced brake booster failure, among other issues stemming from all aforementioned. The car is now said by dealership to have indication of an internal engine issue and affected PCV lines dealing with a defective orifice (Kiriacopoulos, et al. v. General Motors LLC, Case No. 2:22-cv-10785, in the U.S. District Court for the Eastern District of Michigan) The car remains at a dealership and has now been there for over 30 days. There was no warning lamps, messages prior to the air vacuum Pump/Brake booster issue. I got in the car to try driving, and it was hard to push the brake with foot, so for I knew something was wrong. In taking it in to service, was when it identified to be that issue. Those issues have been manufacturer inspected (dealership) and confirmed. I experienced these issues since purchasing the vehicle in June of 2021. I believe that GM knows of these issues and has put me at risk on the road, along with some other symptoms of the car failures that are also well documented, and that GM is aware of, with no recalls. These car parts/issues put me and others in further danger, the car's air vacuum pump and brake booster affecting car's ability to operate, damaging other parts (Johnson vs. GM).? Consumer rights to be protected and safe are at risk, not deserving to have faulty auto parts sold, further exacerbating issues with the car being dangerous on the road with defective brake related parts, and rendered inoperable.?

- Providence, RI, USA

Car demonstrates random full vehicle power loss while in drive mode both at stop and while actually in motion and driving. Vehicle had a catastrophic loss of all break power while going downhill. Luckily while leaving the Lincoln Memorial in DC driver was traveling slow enough and able to get vehicle stopped without immediate injury. Car brakes would not reengage without 3k repair to import/export value(see receipt). 2 days later check engine light returned. 2 weeks later dealer is still in discussion with GM to identify cause of engine failure.

- Fort Washington, MD, USA

The sensor for my gas cap was the first thing to malfunction, then My check engine light came on. Then the power steering sensor have me notice to drive carefully my drive assistance was malfunctioning. During my drive last night the power steering went out and the dashboard went dark several times.

- Austell, GA, USA

I bought a 2020 Chevrolet Malibu LT on April 26, 2023 from Lake Hartwell Chevrolet in Toccoa Ga. It drove fine for 3 days. Then a chirping started in the steering wheel. On May 3rd. While I was taking my wife to our baby doctors visit, as I turned into the parking lot, the engine light came on, and the steering failed. I was able to safely get it into the parking lot and out of the way of the other cars. I called the dealership and they had it towed to their shop. They charged the battery saying that's all that was wrong with it. However, as the clean up guy at the shop was bringing it to me, the engine light came on again and he took it back to the shop. Within the next 14 days from then, they replaced the steering module, battery terminals, which seemed burnt, they said, and realigned it. However, all of this is word of mouth as I was not given any paperwork verifying this repair. The next day, the chirp returned. It has very loose steering and sways easily from side to side. Also, upon a diagnostic check by another certified mechanic, the computer would not link and give codes. He told me one of the computers in the car was bad, but not sure which one. I checked and I can not qualify for the lemon law, so I contacted the general manager and said I wanted to return the car and my bank returned their money. Or, another chevrolet car, from Chevrolet, not from this lot. This car is unsafe for me and my family. He said that was not possible as the tag and title has been processed. So I am ready to pursue legal action. The cars they let me drive during my cars repair were junky, too. One wouldn't drive over 30mph and the other had a ticking motor. I feel this business presents a danger to anyone who in need of and buys a car from them. Date of ownership: April 26, '23-present. Today is May 24, '23. They have also failed to give me the paperwork verifying the Chevrolet Lifetime Warranty on the Powertrain and Transmission. That was promised on the day of sale.

- Martin, GA, USA

Shift to park error, No power to car, reduced engine power, camshaft positioning error, brakes failed (completely went hard unable to press) almost causing crash.

- Reidsville, NC, USA

The contact owns a 2020 Chevrolet Malibu E2. The contact stated that while at a complete stop at the stop sign, the auto START/STOP mode engaged, however the vehicle failed to restart upon releasing the brake pedal. The message "Engine Reduced Power" was displayed. The contact stated that the vehicle failed to restart after several attempts. The vehicle was towed to the dealer where it was diagnosed that the vacuum pump had failed and the camshaft reluctor was in improper position. The dealer diagnosed that the vacuum pump and camshaft needed to be replaced. The parts were replaced. However, the failure reoccurred while driving. The contact stated while driving at 80 MPH and merging lanes, the vehicle decelerated unintendedly and the message "Engine Reduced Power" was displayed. The contact was able to veer to the side of the road. The vehicle was towed to a second dealer, Vandergriff Chevrolet (1200 W Interstate 20, Arlington, TX 76017), who informed the contact that he would need to tow the vehicle to the first dealer to be repaired. The vehicle was not repaired. The manufacturer was notified of the failure and advised the contact to tow the vehicle back to first dealer for additional diagnostic tests. The failure mileage was approximately 55,634.

- Arlington, TX, USA

The contact owns a 2020 Chevrolet Malibu. The contact stated while driving 35 MPH and depressing the brake pedal to slow the vehicle, the vehicle stalled. The contact stated that the oil change service light was illuminated. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the vacuum pump and engine to be replaced. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 90,000.

- Fayetteville, NC, USA

The contact owns a 2020 Chevrolet Malibu. The contact stated while driving 25 MPH, the odometer and tachometer readings were incorrect. The Services ESC, power steering, power steering assist, and check engine warning light illuminated. The vehicle was turned off and restated and operated normally; however, the check engine warning light remained illuminated. The contact stated that the steering wheel became stiff and the vehicle lost power brakes functionality. The vehicle was taken to an independent mechanic however, the mechanic was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was contacted and stated that the vehicle needed to be diagnosed by an authorized dealer. The failure mileage was 65,000.

- King Of Prussia, PA, USA

Sometimes when I drive my car it loses power especially when I-??m turning into on coming traffic it will lose speed and I-??ve almost been hit on numerous occasions. I-??ve taking the car to Chevy dealership 4 times already the last time they discovered transmission issues they repaired it. They tell me they don-??t see anything else wrong. I have read reviews from other owners and they are experiencing the same exact problem

- Bay Point, CA, USA

The contact owns a 2020 Chevrolet Malibu. The contact stated while driving approximately 65 MPH the vehicle was jerking and then inadvertently lost motive power. The contact was able to pull over safely. The contact was unable to restart the vehicle immediately; however, eventually, the vehicle restarted and was driven to the residence. The check engine warning light was illuminated. The vehicle was taken to the dealer and diagnosed; however, the mechanic was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 60,000.

- Colton, CA, USA