Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2018 Chevrolet Malibu owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2018 Chevrolet Malibu. The contact stated while driving at approximately 70 MPH, the vehicle started losing motive power with an unknown engine warning light illuminated. The contact stated that the engine power was reduced. The contact depressed the accelerator pedal; however, the vehicle failed to respond. The contact stated that the vehicle decelerated to approximately 15 MPH and the vehicle stalled. The contact stated that the vehicle lost power steering and braking functionality. The contact was able to stop the vehicle. The contact attempted several times to restart the vehicle however, the vehicle was unable to be restarted. The contact stated there was an abnormally strong odor of gasoline in the cabin of the vehicle. The contact opened the hood, and the odor of gasoline was very strong. …
The contact owns a 2018 Chevrolet Malibu. The contact stated while coming to a complete stop, the engine auto Start/Stop system engaged, causing the engine to shut off; however, the electrical system then became inoperable. The contact stated that upon depressing the accelerator pedal to resume driving, the vehicle failed to respond as needed. Additionally, the contact stated that while coming to a stop, the vehicle failed to stop immediately and rolled to a stop. The stabili-trak and electronic stability control warning lights were illuminated. A message advising to open and to close the windows was displayed. The contact stated that the check engine warning light was illuminated. The vehicle was taken to AutoZone, where it was diagnosed that there were debris in the throttle. The contact was advised to drive at high speeds on the highway to correct the failure. …
The contact owns a 2018 Chevrolet Malibu. The contact stated that there was an oil leak coming from the engine. While driving at an undisclosed speed, the message "Engine Power Reduced" and "Service Stabili-trak" were displayed. Occasionally, the automatic emergency braking activated unexpectedly, and while the vehicle was stopped, the vehicle shuddered abnormally. The vehicle also decelerated and stalled occasionally. Additionally, the volume on the radio was stuck, the steering wheel command controls failed to operate as needed, and the air compressor was recently replaced. The contact associated the failures with NHTSA Campaign Number: 20V668000 (POWER TRAIN), 19V642000(ELECTRICAL SYSTEM, FUEL SYSTEM, GASOLINE, ENGINE), 18V400000(AIR BAGS), and 18V358000(FUEL SYSTEM, GASOLINE); however, the VIN was not included in the recalls. …
The contact owns a 2018 Chevrolet Malibu. The contact stated while driving at an undisclosed speed, the low power mode warning illuminated, and the vehicle lost motive power. The contact stated that the failure occurred three times within a day. In addition, the contact stated that the night before, the vehicle was started; however, the vehicle then failed to start as intended. The contact stated that the vehicle went into auto theft mode. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The contact stated that the failure had previously occurred in July 2024. The vehicle was taken to the dealer and an unknown recall repair was performed. The recall repair consisted of ECM was reprogrammed and OAT sensor was realigned. The manufacturer was not made aware of the failure. The failure mileage was approximately 81,265.
The contact owns a 2018 Chevrolet Malibu. The contact stated that while his daughter was driving and stopped at a traffic light, while depressing the accelerator pedal, the vehicle failed to respond, and the vehicle lost automotive power. The contact stated that five minutes after restarting the vehicle, the vehicle operated as intended. A dealer was contacted. The vehicle was taken to dealer, where it was diagnosed that the engine control module needed to be replaced. The contact stated that the failure had occurred on several occasions. The vehicle was not repaired. The contact associated the failure with NHTSA Campaign Number: 19V642000 (ELECTRICAL SYSTEM, FUEL SYSTEM, GASOLINE, ENGINE); however, the VIN was not included in the recall. The manufacturer was notified of the failure. The failure mileage was 75,000.
The contact owns a 2018 Chevrolet Malibu. The contact stated while driving 20 MPH and coming to a complete stop, the brake pedal was depressed and the vehicle Stop feature engaged independently as designed, causing the engine to stop running. However, upon releasing the brake pedal, the vehicle stalled and shut off. The contact was unable to veer to the side of the road. The contact shifted into the park, depressed the pedal, and was able to restart the vehicle. The contact stated that the failure reoccurred twice. The vehicle was taken to the local dealer where it was diagnosed that no issues were found. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the dealer. A case was opened. The failure mileage was approximately 58,000.
The contact's daughter-in-law owns a 2018 Chevrolet Malibu. The contact stated that while driving various speeds, the vehicle would shut-off without warning. The contact stated that the vehicle would eventually restart after multiple attempts and would resume normal driving operation. As the failure persisted, the EVAP warning light illuminated on the instrument panel. Upon investigation, the contact discovered NHTSA Campaign Number: 19V642000 (Electrical System, Fuel System, Gasoline, Engine) which he linked to the failure. The vehicle was then taken to a dealer and the contact was informed that the vehicle was not included in the recall. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 40,000.
The contact owns a 2018 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The "Engine Power Reduced" message was displayed. The contact stated that the vehicle lost motive power. While driving 70 MPH, the vehicle decelerated to 45 MPH unintendedly. The vehicle was previously repaired under NHTSA Campaign Number: 19V642000 (ELECTRICAL SYSTEM, FUEL SYSTEM, GASOLINE, ENGINE). The local dealer was contacted and provided the contact with an estimate for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 186,000.
The contact owns a 2018 Chevrolet Malibu. The contact stated that upon turning the vehicle off, the message to "Shift to Park" was displayed and the electrical components remained on. The contact drove the vehicle to an independent mechanic where the vehicle was diagnosed. The contact was informed that there was faulty wiring in the electrical system. Additionally, the contact was informed of an undisclosed recall possibly related to the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 82,000.
The contact owns a 2018 Chevrolet Malibu. The contact stated that after parking and turning the vehicle off, several electrical features remained activated including the radio and the infotainment touchscreen. Additionally, the message "Shift to Park" was displayed. The contact stated that due to the failure, the battery was drained, and the vehicle could not be immediately restarted. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure, but no assistance was provided. The failure mileage was 38,000.
Electrical complaints in other Malibu years
Frequently asked questions
How common are electrical problems on the 2018 Chevrolet Malibu?
NHTSA has 192 complaints about the electrical system of the 2018 Chevrolet Malibu, 27% of the model year's 700 complaints. The component named most often is instrument panel › fuel gauge (1 mentions).
Is there a recall for 2018 Chevrolet Malibu electrical problems?
No. NHTSA lists no electrical system recall for the 2018 Chevrolet Malibu, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2018 Chevrolet Malibu electrical problems start?
Half of the complaints with a recorded mileage happened before about 47,000 miles, and 14% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 2 fires and 0 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.