*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Power train
On 10/8/26 My vehicle failed in the middle of traffic as I was driving the car forcefully slowed down. When I proceeded to press the gas the car began driving in reverse putting me in immediate danger causing 2 different car to almost hit me from behind. I put the car in park , turned on my hazard lights and got out of the vehicle . I called my husband immediately luckily I was not far from home, and had him push my car out of the street . Itâs currently still there.
Oct 8, 2026Steering
My chevy stopped while driving. The engine light came on and engine power reduced. The brakes locked up and I could not go anywhere. Code P1101, Vacuum Pump Failure and ECM came up. Financing this vehicle. Have not been able to drive it in 3 weeks.
Sep 18, 2026Service brakes
I was driving in town through a stoplight when I noticed my brakes stopped working. Also when I had stopped the car still in drive and the car had shut off completely in the middle of the road and was not able to turn back on. The car would keep trying start but none were successful. My car also stated that there was reduced power to the engine and the car would hesitate to gain speed as well. My safety and others were put to risk because my brakes stopped working so I couldâve caused an accident. When we trying to find what was wrong with it through a code reader we had noticed the piece had shattered inside of the engine. No insurance, police or manufacturer has inspected the issue.
Sep 24, 2026Engine
Examatory mark appears on the dashboard say that engine speed as reduced
Jul 24, 2026Power train › Automatic transmission › Control module (tcm/pcm/tecm)
The contact owns a 2018 Chevrolet Malibu. The contact stated that while attempting to start the vehicle while in park(P), the message "Shift to Park" was displayed. The contact shifted in and out of park(P) and wiggled the gear shifter several times, but the failure persisted and the vehicle could not be started. The vehicle was diagnosed by three independent mechanics, and it was determined that the failure was associated with the transmission and the Transmission Control Module (TCM). The dealer was notified of the failure, and an appointment was scheduled for a diagnostic test. The failure mileage was 181,385.
Sep 16, 2026 · 181,385 milesPower train
The contact owns a 2018 Chevrolet Malibu. The contact stated that while the vehicle was parked, the message "Shift to Park" was displayed on the instrument panel. The gear shifter was shifted back into drive and then back into park to turn off the vehicle. The contact also stated that while driving approximately 65 MPH, the vehicle shuddered, started to lose automotive power, and then continued driving; however, the vehicle operated at reduced power and failed to exceed 30 MPH. The check engine warning light was illuminated. The vehicle was restarted; however, the failure persisted. The contact stated that there was an unknown liquid dripping underneath the vehicle. The manufacturer was…
Aug 10, 2026 · 180,000 milesFuel system, gasoline
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…
Jul 31, 2026 · 169,000 milesService brakes
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…
Oct 2, 2025
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
