Problems · by component

2018 Chevrolet Malibu fuel/propulsion system problems

84 owner complaints to NHTSA about the 2018 Chevrolet Malibu cite fuel/propulsion system, 12% of all 700 complaints for this model year.

Complaints
84
12% of all complaints
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
1
Reported by owners
01 —Owner reports

What owners say about the fuel/propulsion system

Verbatim from NHTSA complaints, newest first
“A software error in 1.5L turbo model disable fuel injectors, preventing the engine from starting or causing a sudden stall while driving. It’s been confirmed to be an previously opened recall that was fixed by previous owner. But, is happening again to me. Yet I’m being told It has been closed and cannot be fixed unless I pay out of pocket. There are warning signs that pop up like reduced speed while I am driving etc. which reduces my speed and is incredibly unsafe.”
Owner complaint to NHTSAFiled Jul 30, 2026Electrical system, Vehicle speed control, Fuel/propulsion systemODI 11753826
“In 2020, I received multiple red recall notices in the mail regarding a safety issue. I scheduled an appointment with a Chevrolet dealership in Los Angeles and have a voicemail confirming the appointment. At the time, I did not follow through with ensuring the repair was fully completed, which I take responsibility for. However, the vehicle has continued to experience the same dangerous symptoms. My vehicle continues to display sudden “Engine Power Reduced” warnings while driving at freeway speeds. The car abruptly slows down and limits acceleration, forcing me to pull over and turn the vehicle off and back on to reset it. During these events, the steering wheel becomes extremely difficult to turn, creating a dangerous situation, particularly at high speeds. The vehicle also appears to have ongoing issues with the push-button start/stop system. Although I did not pursue the issue further at the time, I am now seeking to have it properly addressed because the safety risk remains and another family member is currently driving the vehicle. When I recently attempted to verify the recall status, both the Chevrolet website and other sources show no open recalls.…”
Owner complaint to NHTSAFiled Mar 4, 2026Steering, Power train, Fuel/propulsion systemODI 11721889
“The vehicle shut off in the middle of the street. I had to get it jumped to start again. There was a fuel leak. Car is still smelling like fuel after getting it repaired. The vehicle doesn't alert if your close to a car or anything”
Owner complaint to NHTSAFiled Jan 17, 2026Electrical system, Fuel/propulsion systemODI 11711621
“After diagnostic troubleshooting from DTCs on a check engine light, it was discovered that the brake vacuum pump connected to the engine was completely nonfunctional. Previous symptoms included stiff brake, loss of brake power at random brake periods which could have cause and accident with other drivers, and finally malfunctioning sensors attributed to the exhaust system. This also led the vehicle to be unable to pass state regulated Emissions testing because of the inability to maintain proper emissions levels. Brake Vacuum pump that was removed from vehicle to inspect and diagnose is still available for inspection. Recent findings show that Chevrolet/GM is aware of the issue in their vehicles but refuses to address or replace faulty brake vacuum pumps. It is a common problem amongst 2013-2022 Chevrolet Malibus. Vehicle that is in question was inspected by a certified mechanic shop with failed emissions test. Solid check engine light appeared once the brake had become harder to push and stop the car. OBD scans show DTC codes that were pertaining to MAF and MAP malfunctions in readouts and communications to the ECM. After further inspection, the ABS module had…”
Owner complaint to NHTSAFiled Nov 22, 2025Vehicle speed control, Service brakes, Fuel/propulsion systemODI 11701025
“Every so often I get an indication of engine power reduced, but every time I go in to get it checked it's off. I have recently just learned through research online that the issue is caused by a certain condition that gives false reading to the electronics. I have contacted GM and GM financial about the recalls on my cars of the same year. I have not been in a wreck but I have had the issue of engine reduced power in the middle of traffic. Cox Chevrolet in Bradenton has turn me away about the issue GM financial is giving me the runaround neither one mention anything about a recall instead I get a estimate $400 /$808.50/1900.41 all to fix ECM as I told the mechanic I was driving with no problem through the day me and the kids at the park when it was time to leave the car sounded like it just didn't have no gas. We was stuck tell 10:45 we waited two hours for the tow truck. I have OnStar and get monthly reports on my car. When the check engine light comes on OnStar has no indication that's why I believe it is the same ECM. I was told by Chevrolet Maher service manager of St Pete to get my car off their lot as I said before I got a estimate of 400 that went up to…”
Owner complaint to NHTSAFiled Oct 8, 2025Electrical system, Vehicle speed control, Fuel/propulsion systemODI 11692209
“Purchased a car for financing from Barret Motors and 2300 Lakeview PKWY, Rowlett, TX and as soon as I drove it off the lot on [XXX] the engine light popped on. I immediately called and was told to just take it to Chevy/GMC for servicing but was not told why, but just because the engine light was on I was told to go. I couldn’t take an appointment asap because I just started a new job which they also knew. The car has had a recall since 09-06-19 for an engine control module. Which is a serious issue and this car never had it completed and sold me a car with possible engine issue and did not inform there’s a recall on the vehicle for almost 5 years now. I took the car to get serviced at Chevy for the recall on 09/09/2025 and now I am facing multiple issues with the car from it not being done years ago. The recall was N192221960 and it’s major so to sell a car before getting the properly service and I have been financing the vehicle for a year now. Never not once late and I am now being told there’s nothing can be done. I have photos of the car having the engine light pop on the same day u financed this vehicle. Barret knew a serious engine problem was effecting…”
Owner complaint to NHTSAFiled Oct 4, 2025Electrical system, Engine, Fuel/propulsion systemODI 11691347

Showing 6 of 84 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.