The Power Brake Vacuum Assist Failure nearly caused a wreck. The part failed while we were driving on [XXX] going 65 miles per hour on a busy highway. As the breaks gave out the engine light said -??Reduced Power-??. Moments later, the breaks stopped working and the engine stopped running. We were able to coast off the highway and into an HEB parking lot and have the vehicle towed. The mechanic took the part off and found that it was in pieces causing further examination of the engine to look for the missing metal. Pictures are available to see the damage. Even after completing the repairs the vehicle is showing reduced power. We are still trying to get it fixed but understand that the Chevrolet company is aware of the issue but never issued a recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- League City, TX, USA

On numerous occasions while driving on highway my dashboard will display reduced engine power and engine light comes on. My traction control light also comes on. Car loses power quickly and will not accelerate. I-??ve had to pull over numerous times almost being hit by cars behind me. Took it to get repaired and had to have fuel pump replaced as wires had melted to side of pump. Three months later same problem happened. This car is scary to drive

- Maquoketa , IA, USA

Ice and sludge accumulated and froze causing the CAC system to fail resulting in engine issues, performance loss this was caused from GM poor design of a shield that they are aware of. GM knows that this can happen and have now designed a new shield to prevent this from happening but it is at the owner-??s expense to fix. If GM knows that this will happen they should fix the issue I am now out of pocket $3,000 shame on them

- Birch Run , MI, USA

Engine reduced power while driving in traffic car gets no power to accelerate and engine light also on.

- Milwaukee, WI, USA

My car displayed "reduced engine power" and slowed down on the highway while I was doing 65mph. My car would not accelerate past 20mph. There were no issues with my vehicle, and this happened out of nowhere. It caused a lot of other drivers to have to swerve around me, and drastically reduce their speeds as well in order to avoid collision. This was highly unsafe and now I can not safely drive my own car.

- Niles, MI, USA

Gas pedal locked up can-??t accelerate

- Haddon Township, NJ, USA

Error message reads "Engine Power Reduced". I was on the highway and suddenly the engine gives out and only lets me go to a max capacity of 20 mph. I able to safely remove myself to the side of the freeway. A week later without moving my vehicle I checked to see the status of my car and the error message removed itself. It's been over a year now with my engine power coming and going, just as fast as it comes, it goes-- making driving very unreliable and unsafe to step onto the road. Apparently I'm not the only one with this concern according to [XXX], a class action lawsuit has been charged against Chevrolet in The Rothschild v. General Motors LLC Chevy Malibu Class Action Lawsuit is filed in the US District Court for the Eastern District of New York under case number [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- South Gate, CA, USA

My dash warning lights came on and the engine shut off. The battery voltage seems fine, and the car will start but only run for a short time. I cannot drive it for fear of stopping on a highway or main road.

- Riverview , FL, USA

Engine reduced while on the highway.

- Shreveport , LA, USA

Shift to park warning continues to come on daily when I go to put my car in park. I have to fidget with the shifter to get the computer to recognize that my car is in park and the car will then shut off. Recently I was stopped at a red light, tried to accelerate at the green light and my car completely shut off, while I was still in drive. I could not accelerate and had to place my car in park. Then my stabilitrak sensor came on, along with a notice that my battery saver was on. I had to call a police offer to help me off the road. The car was then able to turn on and I drove it home but this is not safe.

- Chandler, AZ, USA

I was driving my car at a normal rate of speed when all of a sudden it slowed down to a crawl and almost caused an accident, reduced engine power and engine came one after getting the codes they were 2122 and 2097

- Milwaukee, WI, USA

The day I bought the vehicle in 2019 the engine light came on, I took the car back to the dealership and was told they couldn-??t do anything. I took it to them and the shop here in town and I was told by both shops on multiple occasions they could not fix any of the issues. They treated me like I-??m just a paycheck for them. My car for 3+ years now shuts completely off when I slow down or stop, including on highways. -??Engine speed reduced-?? message comes up every time I drive. Now I am being told my brakes are going to go out and nobody can help me. I have to step on my gas after I start the car or it just sputters.

- Baker City , OR, USA

The contact owns a 2017 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the reduced speed warning light and the check engine warning light were illuminated. The vehicle decelerated and the brake pedal became stiff while depressed, while the RMP-??s fluctuated. The vehicle was taken to the dealer, where the vacuum pump was replaced; however, the contact stated that the RPM-??s was still fluctuating. Additionally, the contact stated that while driving, if the accelerator pedal was not depressed, the vehicle would shut off. The contact stated that the vehicle failed to exceed 60 MPH while driving. The contact stated that a DTC code for the camshaft was illuminated. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 95,000.

- Anaheim, CA, USA

Reduce Power Engine appears on the dash board. The car starts slowing down, I can-??t speed up, I Have to park on the side of the heavy traffic in the Highway. I have to wait around 5 minutes and then drive. I still have the engine symbol on. This happens regularly like 2 to 3 times a week.

- New Windsor , NY, USA

My car has reduce engine speed. I-??m driving on the highway and out of nowhere the car shots down and a symbol appears on my dashboard that says Reduce Engine Speed. Literally the car slows down to a minimal speed until I can-??t drive anymore. I have to stop and turn off the car for 5 minutes until I can turn it on and drive to my destination in a reduce speed.

- New Windsor , NY, USA

My car Engine failed on me and I have Taken this car Back to dealership over and over again and they kept telling me nothing was wrong and kept clearing my codes on the car and now out of a car I have to still pay on this car cost me 22,000 dollars I bought the car with 34,000 miles in Dec of 2019 and have had problems since the first power loss i cant remember exact date I found out this car had a recall and at 3,300 miles with the valve and gotten fixed I had loss of power with the gas pedal which was also recall car felt like it was gonna stop on me multiple times with power loss engine was riding rough I wold smell a burning smell at times my shift into park as well needed fixed the dealership said I needed a new computer and they couldn't do nothing about it I even Contacted GM and nothing was done before my car engine went out on me every time I took the car in the codes that came up was in the car history which i asked why do codes keep pop up in history if you keep clearing them that means something wrong and they couldn't give me a answer My extended warranty denied my claim they had a inspector come out and take a look due to consumption of oil and bent valve is a part in the engine they wont cover and I even asked my advisor all the times I brought my car in this could of been issue and he said possibly I have all my invoices as well have I dont have a way to upload them at the moment

- Desmoines , IA, USA

I purchased a 2017 Chevrolet Malibu LT for my son Memorial Day weekend in 2019. The first night we got the vehicle home it rained overnight. We checked the trunk and found water in the trunk. After a search online we found that this was a known issue for the Malibu yet Chevrolet/GM did not issue a recall. After putting pressure on the dealership that sold the vehicle to us they agreed to send us to a Chevrolet dealership to have the issue fixed at no charge. Last Monday, April 24, 2023, my son was driving his vehicle and the StabiliTrak came on and his car would not accelerate. He took the car into the dealership and they determined his pistons were cracked and it would be $6,900 to repair the pistons/engine. After doing an internet search I found a letter on a commercial attorney's website and on the GM website that was sent to Malibu and Cruz customer's in 2017. The piston damage was a known issue. The letter from 2017 stated it was a misfiring of an ECM module that could lead to piston damage. Owners of the Malibu and the Chevy Cruz were given to March 31, 2019, to come in and have the module reprogrammed and new oil placed in the vehicle. We bought the care at the end of May 2019 so there was no way to know of this issue. There was no recall so the information was not readily found. I did not find out this was a known issue until I did the Google search last week. I have reached out to Chevrolet and filed a claim. Chevrolet at first said they could maybe pay 20% for the repairs. They should be paying 100% due to the fact they knew of the issue and should have issued a recall.

- Mint Hill, NC, USA

2017 Chevy Malibu has P2138 showing up.. I was on the highway loss half the power to my car, almost causing a major accident, went from 65 mph to 30mph in seconds.. This is a safety issue & needs to be address ASAP!! I have my vehicle at the dealership, the service teams seems to have no clue that there is an issue with the mailbu's !! The P2138 is defined as -??Throttle/Pedal Position Sensor/Switch -??D-??/-??E-?? Voltage Correlation.-?? It is triggered when the vehicle's Engine Control Module (ECM) detects that the signals from the two throttle position sensors or the two accelerator pedal position sensors don't correlate.

- Thornton, CO, USA

2017 Chevy Malibu over 15 times this happens since we owned buying it brand new it has "Reduced Engine Power" error come on and the car can't accelerate over 30 miles per hour. This is a continued problem all the time and very dangerous when we are on the tollway that has a 70-mph speed limit, and you can't get the car to over 30 mph. This same problem happens on our 2018 Chevy Malibu over 5 times since we owned it too and it's getting worse! This is extremely dangerous and takes you a long time to get home when you can only go 30 mph or less because of the "Reduced Engine Power" Limit. Same 2017 Chevy Malibu also has the "Shift to Park" Error so we can't shut off the engine because the car won't go into park, you have to back up and keep trying to get the shifter to let you put into park if you're lucky it will finally after many shifting attempts back and forth to get rid of the error so you can shut off the engine to exit your car. GM should be responsible for a recall on these two very important errors that these Chevy Malibu cars are having on both of the problems are very dangerous "Reduced Engine Speed" and "Shift to Park" can't shut off the engine is dangerous.

- Ingleside, IL, USA

-??Engine power reduce-?? error on dash as well as check engine light. Driving on highway at fast speeds when this message displayed and my cars mph dropped to 30mph. I-??ve had this issue fixed once already with the dealership and it turned out to be the sensor throttle or something with the pedal. Yet, 5 months later, I am having the SAME problem. This is very unsafe

- Mansfield, OH, USA