2,824 of the
29,413 complaints filed about the Chevrolet Malibu
are about the braking system —
10% of everything owners reported.
The worst model year for it is 1998.
I have a failed vacuum pump which caused my braking ability to be 100% reliant on my own strength to be able to “safely” stop the car. This is an ongoing and common problem with GM yet they have not recalled or given any solution. This is unsafe and should be illegal. I have now an underwater car loan and still a non-drivable car because not only do i have to repair the vacuum pump but also the camshaft exhaust as well as timing chain. All of these repairs are things GM willingly hides from customers if they already knew this was an issue.
NHTSA complaint #11758956 — 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.
While driving my 2017 Chevrolet Malibu LT equipped with the 1.5L turbocharged engine, the brake vacuum pump failed due to the pump’s mechanical drive/tang shearing. The failure resulted in loss of vacuum assistance to the power brakes, creating a significantly harder brake pedal and a serious safety concern because braking assistance can be reduced and stopping may require substantially more effort. After removing the failed pump, I found that part of the pump’s drive mechanism had sheared off and had to be retrieved from the camshaft area. I am retaining the failed pump and broken component. I am requesting that this failure be investigated as a potential safety defect because a failure of a component responsible for brake-assist vacuum can affect the vehicle’s ability to stop safely.
NHTSA complaint #11757192 — an unverified report by a vehicle owner.
The esc light came on, air conditioner fan speed went high then low and my screen flickered out momentarily. The esc light came on three more times, 10-15 seconds each time with no lights remaining on after and no other changes. The next time I drove, when turning the esc light came on and the steering locked up for about 5 seconds
NHTSA complaint #11755368 — an unverified report by a vehicle owner.
My 2020 Chevrolet Malibu experienced a sudden and severe electrical failure after driving through normal roadway water. Immediately afterward, the vehicle displayed multiple safety‑critical warnings including loss of power steering assist, Electronic Stability Control (ESC) faults, brake control faults, and reduced propulsion. A GM dealership inspected the vehicle, scanned the modules, and found more than a dozen network and chassis‑related diagnostic trouble codes, including: B3979, U0164, B1325, B3122, U0121, C0196, C0460, B1011, B097B, B3205, C056E, C056D, U0420, U1510, C0545, U0422. These codes indicate failures in the steering system, brake control module, stability control system, body control module, and multiple CAN‑bus communication networks. The dealership confirmed: – No physical damage – No evidence of collision or impact – No evidence of flood damage – The suspected failed component is the electric power steering rack (GM part 85621696) – The part is not available, meaning the vehicle cannot be repaired – I would be responsible for diagnostic and repair costs This is a major safety concern. The vehicle can lose steering assist, stability control, and braking support without warning. The inability to obtain the required steering component makes the vehicle unrepairable and unsafe to operate. I am reporting this because this appears to be a systemic electrical/network failure affecting critical safety systems. I believe this defect poses a significant risk to drivers, passengers, and other motorists. The attached photo is a is a picture of the printout the Chevrolet dealership Service Manager provided to me.
NHTSA complaint #11755071 — 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.
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.
I have a 2017 Chevy Malibu 2.0 T. The incident involved the braking system. I was driving and as traffic came to a stop, I pressed the brake to stop and my brakes gave out. I immediately lifted my foot and press extremely hard on my brake pedal and was able to stop though the stopping distance was much further and nearly caused an accident. I have now taken the vehicle to a Chevy certified dealer and it has been identified as a brake vacuum pump failure. GM has had many issues with the brake vacuum pump across many of its models.
NHTSA complaint #11748825 — 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.
Randomly when I press the brakes the brake lights don't turn on. Other times they work fine. All of the light bulbs are good. All three brake light don't turn on randomly. I have almost been rear-ended on numerous occasions.no dash lights came on. And I have not had it inspected yet just my girlfriend pushing the brake pedal to test the lights. One day they work another they don't then another day they work again.
NHTSA complaint #11747296 — an unverified report by a vehicle owner.
The contact owns a 2018 Chevrolet Malibu. The contact stated that while driving on the interstate and attempting to exit the ramp at 40-45 MPH, the brakes failed. After restarting the vehicle, the check engine warning light illuminated. The contact related the failure to NHTSA Campaign Number: 18V576000 (Service Brakes, Hydraulic). The vehicle was towed to the local dealer, where it was diagnosed that the vacuum pump had failed. The vehicle was not repaired. The manufacturer was contacted, confirmed there was no recall and referred the contact to the NHTSA Hotline. The approximate failure mileage was 150,000.
NHTSA complaint #11742983 — an unverified report by a vehicle owner.
Since 2024/2025 car has been malfunctioning, I’ve had it checked out but it just got worse and nothing was fixed l, it is I driveable and very unsafe. When driving it abruptly stops like it’s crashing Messages that pop up (Multiple ones at one time flashing as well) - service “ESC” -“service power steering drive with care” -“shift to park” -“low fuel” (but car has gas in it) - check engine light on -all lights flashing at once while jerking -car stops abruptly when you’re driving it -radio blacks out while driving -dashboard blacks out as vehicle is running -jerking while trying to stop -sensor malfunctions -transmission slippage -engine still on and running sounds like it’s cooling down and smells of it as well
NHTSA complaint #11742162 — an unverified report by a vehicle owner.
There have been numerous days that I press brake to start car in which it does not start. I wait until it will. The trunk seems unaligned as there's more gap on right side. Carpet in front floor is not correct as I have to tuck under trim by door constantly. Backup camera seems distorted and has been not correct in lines to park but remains distorted by the unclear view and awkward angle. While driving at times it feels like going into another gear and it's an automatic. The breaking at times is very hard and pushing passengers forward.
NHTSA complaint #11741882 — an unverified report by a vehicle owner.
While driving my 2013 Chevrolet Malibu (2.5L), I experienced a sudden and severe failure of the braking system. [Insert exactly what happened here—for example: 'The brake pedal suddenly went completely to the floor,' 'The brakes unexpectedly locked up,' 'The vehicle experienced a sudden loss of braking power,' or 'The brake warning lights illuminated right as the brakes failed']. This occurred while traveling at approximately 25 mph on a one-lane road. This total/partial loss of braking power created an immediate safety hazard and a high risk of a crash. The vehicle had to be shifted into manual, then safely coasted to a stop. No prior warning signs or brake issues occurred immediately leading up to this event.
NHTSA complaint #11738680 — an unverified report by a vehicle owner.
The brake pedal on my vehicle intermittently becomes stuck in the fully raised position and will not depress when I attempt to apply the brakes. When this occurs, I am unable to slow down or stop the vehicle, creating an immediate and serious safety hazard. The problem happens without warning and has occurred multiple times while driving at various speeds. When the defect occurs, the pedal feels locked or jammed, and I have to use extreme force or pump the pedal repeatedly before it finally releases. This delay in brake response puts me, my passengers, and other drivers at risk of a crash. The issue is unpredictable and does not appear to be related to weather, temperature, or driving conditions. I have not made any modifications to the braking system. The defect has occurred both during normal city driving and while approaching intersections. Because the failure prevents the brakes from engaging at all, I believe this is a critical safety issue that requires investigation.
NHTSA complaint #11737708 — an unverified report by a vehicle owner.
May 7, 2026 National Highway Traffic Safety Administration 1200 New Jersey Avenue SE Washington, DC 20590 RE: Safety Defect Complaint – Brake System / Vehicle Control Concerns 2020 Chevrolet Malibu Dear NHTSA, I am submitting a safety complaint regarding persistent braking and vehicle control issues involving my 2020 Chevrolet Malibu. Prior to December 31, 2025, the vehicle exhibited jerking during braking, all dashboard gauges go to the left, warning lights, reduced power (20-25mph), and inconsistent braking behavior. This situation happens without warning, at any given time, even in the flow of traffic. An independent inspection indicated the brake system was in proper condition, suggesting a more complex underlying safety issue. The vehicle was taken to Reed-Lallier Chevrolet for diagnosis and remained there for approximately five months. During that time, I was not provided documentation confirming completion of a brake system diagnostic or a clear resolution path. Due to the extended delay without diagnosis, I no longer feel safe operating the vehicle. I am also concerned that prolonged inactivity without proper repair may have worsened the condition and increased risk of failure. Given the nature of the symptoms involving braking and vehicle control, I request review for potential safety-related investigation. Vehicle Information: 2020 Chevrolet Malibu VIN: Mileage:
NHTSA complaint #11736449 — an unverified report by a vehicle owner.
To Whom It May Concern, I am writing to formally report a critical safety defect regarding my 2020 Chevrolet Malibu. This defect resulted in a life-threatening incident while I was driving on the highway, during which my vehicle failed to stop as required. While operating at highway speeds, the brake pedal became extremely hard to depress, making it nearly impossible to decelerate or bring the vehicle to a complete stop. This sudden loss of power assist forced me to manage an incredibly dangerous situation in high-speed traffic. Based on the symptoms, I am concerned that the brake booster vacuum pump has suffered an internal failure, a documented issue for this model year where oil sludge or debris causes the pump to seize. In addition to the physical resistance of the pedal, I am concerned about the reliability of the Electronic Brake Control Module (EBCM). The failure experienced on the highway demonstrates that this vehicle is unsafe for public roads, as the force required to engage the brakes in an emergency is far beyond safe operating standards. I request that the NHTSA investigate this brake failure and determine if a mandatory recall is necessary to prevent similar incidents from resulting in catastrophic collisions. Please contact me if you require further information Thank you [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11735781 — an unverified report by a vehicle owner.