3,161 of the
29,413 complaints filed about the Chevrolet Malibu
are about the engine —
11% of everything owners reported.
The worst model year for it is 2016.
The Chevy Malibu is displaying a “Shift to Park” message even when the gear selector is physically in the Park position. This indicates that the vehicle’s computer may not be recognizing that the vehicle has been placed in Park, which is commonly associated with a faulty or failing internal park-position sensor/switch. The issue is affecting the vehicle’s ability to shut down properly. It is necessary to turn the vehicle off and back on multiple times before the system will recognize that the vehicle is in Park and allow it to shut off completely. If the vehicle does not recognize the Park position, it may remain partially powered on and potentially drain the battery.
NHTSA complaint #11758225 — an unverified report by a vehicle owner.
The contact owns a 2023 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the vehicle hesitated and failed to accelerate as needed. No warning light was illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.
NHTSA complaint #11758216 — an unverified report by a vehicle owner.
While driving my 2015 Chevrolet Malibu on a four-lane highway with a posted speed limit of 70 mph, the vehicle displayed an “Engine Power Is Reduced” message and limited the vehicle to less than approximately 25 mph. This created a serious safety concern because the vehicle could no longer maintain highway traffic speed, resulting in a significant speed differential of nearly 45 mph below the posted limit and surrounding traffic flow, creating a high risk of being struck by other vehicles. The vehicle also experienced an alternator problem while being driven on the highway. It repeatedly acted like it was not getting enough power to maintain the speed of surrounding traffic, and we had to pull over on the side of the road. The vehicle has also had an engine-related issue discovered during repairs. When the valve cover gaskets were replaced, the vacuum pump was found to be severely damaged, and metal shavings were found in the engine oil. The reduced-engine-power problem has occurred in connection with the vehicle's electrical and engine problems. The vehicle and affected components may be available for inspection upon request. The vehicle has been inspected during repairs, and the damaged vacuum pump and metal shavings in the oil were observed during that inspection. These problems create a safety risk because the vehicle can suddenly lose engine power and become unable to maintain highway speed. The loss of normal power while traveling on a four-lane highway could make it difficult to accelerate, merge, or get out of the way of other vehicles.
NHTSA complaint #11757229 — an unverified report by a vehicle owner.
The contact owns a 2018 Chevrolet Malibu. The contact stated that there was an abnormally strong gasoline odor coming from the vehicle. The contact stated that while driving at various speeds on several occasions, the accelerator pedal was depressed, but the vehicle failed to respond, requiring the driver to pull over to the side of the road. The message "Engine Power Reduced" was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the fuel injectors had failed and needed to be replaced. The mechanic retained the vehicle and informed the contact that it was unsafe to drive due to a potential fire risk. The vehicle was not repaired. The dealer was contacted and confirmed that the VIN was not under recall. The dealer advised the contact to bring the vehicle in for service. The manufacturer was notified of the failure and confirmed that the VIN was not under recall. The failure mileage was approximately 169,000.
NHTSA complaint #11755237 — an unverified report by a vehicle owner.
I own a 2018 Chevy Malibu. At approximately 57,000 miles, the original engine experienced a vacuum pump failure that resulted in catastrophic engine damage. The engine was replaced by General Motors under the vehicle's warranty. I then drove the vehicle for approximately another 52,000 miles with the warranty replacement engine. At that point, I experienced a sudden loss of braking while driving. My vehicle was again diagnosed with a vacuum pump failure, and the vacuum pump was replaced. Approximately one week after the vacuum pump replacement, the warranty replacement engine suffered catastrophic failure. The repair facility diagnosed cylinder #3 scoring and informed me that the engine required replacement. I was told that the engine failure was related to the vacuum pump failure. Because the warranty replacement engine was no longer covered under warranty, General Motors initially declined to cover the repair. Initially, neither General Motors nor the Chevrolet dealership was willing to accept responsibility for the issue. After continued discussions, General Motors ultimately agreed to provide partial financial assistance as a goodwill adjustment. However, I was still left responsible for paying a substantial amount out of pocket to purchase and install a third engine. The cost has created a significant financial burden that I have struggled to afford, especially because the repair involved a component that I was informed has a known history of failure. I was also informed that vacuum pump failures are a known issue with these vehicles and that General Motors is aware of the problem, although no recall has been issued. I am submitting this complaint because I have experienced multiple vacuum pump failures, two catastrophic engine failures, and have now required three engines in the same vehicle. This has resulted in significant financial hardship, loss of use of my vehicle, and serious concerns about the safety and reliability of this vehicle.
NHTSA complaint #11754547 — an unverified report by a vehicle owner.
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
The contact owns a 2022 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the message “Engine Power Reduced” was displayed. The failure was a persistent failure. The vehicle was taken to the dealer where it was diagnosed with turbocharger failure. The contact was informed that the turbocharger needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 82,950.
NHTSA complaint #11753711 — an unverified report by a vehicle owner.
I’ve reported this problem but as I got into the repair their was far more damaged that was caused due to the vacuum pump. It took out my exhaust camshaft and sent metal through out and the timing needs replaced as well. A shop would rather total my car than what it would cost to fix. I’m attempting to fix it myself but have been without my car for months now. This is created such a hardship and the money it’s continues to take as more and more needs to be fixed or replaced as well as all the gaskets and screws that are only one time use as well as parts like my high pressured fuel line I mean this lost keeps going. I and to replace the water pump as well and all due to this vacuum pump that’s been reported and reported and nothing has been done this is outrageous that what’s caused is so much more then just a vacuum pump it can destroy your vehicle miles don’t matter the less or if you have more the pump goes out when it feels like it. Creating more issues then it should and potentially totaling out a vehicle as it’s been said mine should be. So I’m trying to fix my car to prevent losing it and it’s been one thing after another and such a nightmare. The fact that this issue continues to be ignored is unacceptable and a complete disregard to public safety due to the serious safety issue as mine I could barley get my car to stop the breaks were hard and unable to push down without basically standing on them to get into stop at only 7-8 miles per hour I was moving when the vacuum booster went out. Someone should not have to die to have this issue addressed and to be taken seriously and made right! I can’t believe nothing has been done and that it’s not required to have to address this issue with the severity it bring to one’s safety as well as public safety is beyond me. This is a major lawsuit and people’s lives and lovely hood should be taken more seriously and instead nothing is being done. It’s very concerning to think what has to happen for this to be addressed!
NHTSA complaint #11753408 — an unverified report by a vehicle owner.
The contact owns a 2022 Chevrolet Malibu. The contact stated that while driving approximately 62 MPH, the vehicle lost motive power with the message "Reduced Engine Power" displayed, and the check engine warning light intermittently illuminated. The vehicle was taken to an independent mechanic, where a diagnostic scan retrieved DTC: P0299, indicating a failure with the turbo charger. The vehicle was then taken to the local dealer, who confirmed that the vehicle was not eligible for the GM Special Coverage: N252508360. The manufacturer was not notified of the failure. The failure mileage was approximately 82,010.
NHTSA complaint #11752008 — an unverified report by a vehicle owner.
The contact owns a 2022 Chevrolet Malibu. The contact stated that while driving approximately 62 MPH, the vehicle lost motive power with the message "Reduced Engine Power" displayed, and the check engine warning light intermittently illuminated. The vehicle was taken to an independent mechanic, where a diagnostic scan retrieved DTC: P0299, indicating a failure with the turbo charger. The vehicle was then taken to the local dealer, who confirmed that the vehicle was not eligible for the GM Special Coverage: N252508360. The manufacturer was not notified of the failure. The failure mileage was approximately 82,010.
NHTSA complaint #11752008 — an unverified report by a vehicle owner.
The contact owns a 2023 Chevrolet Malibu. The contact stated that while driving from a complete stop or while driving at various speeds, the vehicle hesitated and jerked while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was taken to the used car dealer where the vehicle was purchased, but the contact was informed that the failure could not be duplicated. There was no warning light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.
NHTSA complaint #11752132 — an unverified report by a vehicle owner.
JUST BOUGHT THE CAR AND THE CAR IS RECEIVING ERROR: "SHIFT TO PARK". THIS APPEAR TO BE A KNOW ISSUE FOR 2018 CHEVY MALIBU HYBRID. CAR CUT OFF IN MIDDLE OF TRAFFIC
NHTSA complaint #11751389 — an unverified report by a vehicle owner.
was stopped at a red light. When the traffic light turned green, I pressed the accelerator to proceed through the intersection, but my vehicle did not respond or accelerate immediately. After several seconds, the vehicle finally began to move. This unexpected delay created a safety concern because I was unable to accelerate when traffic began moving.Which caused built up traffic and an almost wreck behind me
NHTSA complaint #11751301 — an unverified report by a vehicle owner.
While coming down McClure pass in Colorado my brakes failed. The the car went to engine power reduced mode. After getting the car to an independent mechanic I was told that the vacuum pump failed and exploded the parts into the camshaft. After 2 days of repairs I was finally able to get my car back to working order. This could have been a fatal car accident coming down a mountain pass. I was able to get stopped safely because I know the road. I had just driven 700 miles over Eisenhower Pass, Vail Pass, Glenwood Canyon, and then the final pass being McClure pass where it failed. I bought this car brand new and I probably won't buy another Chevy after this. This was a terrifying experience that I will have lasting trauma from.
NHTSA complaint #11750766 — an unverified report by a vehicle owner.
Component: Air Conditioning – A/C Hose Assembly / Refrigerant Discharge Line The air conditioning refrigerant discharge line (A/C hose assembly) appears to have been improperly designed and/or installed during manufacturing. The rubber A/C hose was routed in a manner that caused it to rest against or press against the side of the engine. Over time, the engine heat and constant contact burned a hole through the hose, causing a rapid loss of refrigerant (Freon). As a result of the refrigerant leak, the air conditioning system stopped blowing cold air, and the HVAC system no longer functioned properly. This failure was not caused by normal wear and tear, but by the improper routing and placement of the A/C hose against the engine. The issue was confirmed by Meineke Service Center through a diagnostic inspection and UV dye leak test, which identified the damaged refrigerant discharge line as the source of the leak. A significant safety concern is that simply replacing the hose does not permanently correct the problem if the replacement hose is routed in the same location. Without a manufacturer-provided redesign or long-term repair solution that prevents the hose from contacting the engine, the replacement part is at risk of failing in the same manner. There were no warning lights, dashboard messages, or other indications before the failure occurred. The air conditioning stopped blowing cold air after the refrigerant escaped through the damaged hose. I believe this is a manufacturing and/or design defect that could affect other vehicles with the same hose routing configuration. I am requesting that NHTSA investigate this issue and determine whether a safety recall or manufacturer corrective action is warranted.
NHTSA complaint #11750741 — an unverified report by a vehicle owner.
My 2022 Chevrolet Malibu LT repeatedly and unpredictably enters a "Reduced Engine Power" state, causing sudden, dangerous drops in speed while driving in traffic. This intermittent loss of power happens constantly on and off, creating an ongoing and severe safety hazard. A diagnostic scan reveals codes P0299 (Turbocharger Underboost), P1101, and P2227. General Motors has an active Special Coverage Program (N252508360) covering this exact turbocharger failure for 2022 Malibus with the 1.5L engine. However, GM and the local dealership refuse to cover the repair, claiming my specific VIN is excluded from their automated list. I have already replaced the MAF and MAP sensors to eliminate electrical faults, had all hoses examined for leaks, and I've replaced the air filter under the hood and in the cabin twice, proving this is a chronic mechanical failure of the turbocharger system. GM is using arbitrary VIN boundaries to avoid repairing a known, widespread manufacturing defect that continually compromises vehicle safety.
NHTSA complaint #11750044 — an unverified report by a vehicle owner.
A screen popped up saying “reduced engine power” I was already Omw to the shop to get one thing fixed. When they tried to pull my car in they say they he car wouldn’t drive and it was hard to accelerate and they had to put it in Neutral to get it in the shop. They said they fixed the problem but when I left to go into the main road, my car wouldn’t accelerate to the speed I needed and cars were coming. They were beeping and thank God they were able to slow down because they’ve would’ve hit me. The car does not accelerate and the manias can’t figure out why. Upon doing my research there are 100’s of folks saying the same thing. Right now I am out of a car, I literally just moved on 6/30 and not only do I work DoorDash, I have a day job and an overnight job. My car is how I make my money and this issue is putting a lot of stress and frustration on me because I need to get to and from work to pay bills. I am waiting to hear back from another mechanic which is even more stressful. Waiting, trying to figure out who can fix this issue and what the issue is.
NHTSA complaint #11749779 — an unverified report by a vehicle owner.
While driving, the brakes became hard and the vehicle was difficult to stop. The brake pedal required excessive force, brake assist was reduced, and the stopping distance increased, creating a serious safety hazard. The check engine light had been illuminated for approximately two years before the brake failure occurred. In January 2024, I reported brake-related concerns to a Chevrolet dealership while the vehicle was under warranty, but the root cause was not diagnosed. In November 2025, after the brake pedal became hard, an independent repair facility inspected the vehicle and determined the brake problem was caused by a failing engine vacuum pump. They advised that the vehicle be repaired by a Chevrolet dealership. By January 2026, the brake condition had worsened to the point that the vehicle was no longer safe to drive and had to be towed. A Chevrolet dealership later confirmed that the engine vacuum pump had seized and damaged the camshaft, requiring replacement of both components. The vehicle remains inoperable. The failed vacuum pump caused loss of brake assist, resulting in a hard brake pedal, reduced braking ability, and an increased risk of a crash. I believe this represents a serious safety defect because failure of the vacuum pump significantly impairs the driver’s ability to stop the vehicle safely. I understand GM has issued service information regarding vacuum pump failures on this engine, and I am submitting this complaint because I believe other drivers may experience the same dangerous brake failure.
NHTSA complaint #11748641 — an unverified report by a vehicle owner.
I was driving back home and stopped at a red light. When the light turned green I started driving, but my car was jerking a little too much. I pulled over and turned my car off. When I cut my car back on my brake became very hard to the point I had to push down extra hard to stop my car. I started back driving home once I realized my car needs to be turned completely off and sit. While I'm driving I see a message on my dashboard saying "Engine power reduced." Luckily I made it home safely with no wrecks, but when I had to brake my car was still moving jerking while in place. Also when I made it home and turned my car off I heard a fan like noise that eventually stopped.
NHTSA complaint #11748133 — an unverified report by a vehicle owner.