2015 Chevrolet Malibu engine problems

Related recalls

No recalls on file.

What owners say

1. Filed Aug 16, 2026KYBrakesElectrical SystemEngine

   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…

   NHTSA complaint #11757229 · source
2. Filed Jan 21, 2026MOElectrical SystemEngine

   The car continues to die when I come to a stop. The error code for the engine light is P305F. I have changed both batteries along with several different sensors and spent thousands of dollars in repairs at a couple different shops and still can’t find the problem with this error code. I have fixed everything that this error code points to. The car will not pass inspection with the check engine code on. This should have been recalled as this is a very common problem.

   NHTSA complaint #11712569 · source
3. Filed Nov 13, 2025AZElectrical SystemEngineTransmission & Drivetrain

   The transmission and engine fails repeatedly. The vehicle repeatedly stalls while accelerating at all speeds, simultaneously, the gear shift lights,dash lights, radio, etc restarts. Issue also happens when shifting gears. Issue happens at every stop light and stop sign, when the vehicle is engaged in ‘auto stop’. The vehicle has been in and out of the repair shop since 2022 for TCM/ECM failure. The vehicle has been inspected by Chevrolet twice and other repair shops. Problem…

   NHTSA complaint #11699309 · source
4. Filed Aug 9, 2024ILEngine

   As your driving the REDUCED ENGINE POWER pops up and dropped your speed down to 25-20 mph no matter how fast you're going no way to reset it unless you have a scan tool but then it comes back on scan tool says PEDAL ACCELERATOR POSITION SENSOR IS THE ISSUE put new one on and a day later same thing same answer now im putting second PEDAL ACCELERATOR POSITION SENSOR on

   NHTSA complaint #11607606 · source
5. Filed Mar 27, 2024MSElectrical SystemEngineOther / Unknown

   have a 2015 Chevy Malibu that is randomly trying to start itself. The key fob is the original when I bought it. It has the auto start on the fob but is the kind that requires the key in the ignition to drive.car completely off (not in aux) but the key is in ignition, could be for 2 minutes or hours, and randomly it will try and start, but not fully turn the engine and actually start, just that little half second of a start and then go right back off. Today it did it 3 times…

   NHTSA complaint #11579640 · source
6. Filed Oct 13, 2023MTEngine

   When driving at highway speeds the car will show “Engine reduced power” and will either drop to 20-40 mph or shut off completely. Engine codes show as cam shaft sensor, crankshaft sensor and fuel pressure regulator. I had the cam shag and crank shaft sensors replaced and it stopped for a few months. It started doing it again this week and today it did it then shut off completely and won’t restart

   NHTSA complaint #11549855 · source
7. Filed Jun 9, 2023OHBrakesEngine

   The vacuum boost pump failed suddenly leaving the vehicle with no brakes and potentially causing catastrophic engine damage.

   NHTSA complaint #11526157 · source
8. Filed Jan 18, 2023NVEngineFuel, Hybrid & EV Propulsion

   My car keeps cutting out while I'm driving I've taken it to the Chevy dealership and they did a diagnostic test and it comes up with air intake system cat is running to lean

   NHTSA complaint #11502533 · source
9. Filed Nov 4, 2022PAEngineAcceleration & Cruise Control

   I was almost to work on the highway and my car dashboard said Engine Power is Reduced. It quickly started powering down from 74 directly to 50 then 40, then 35 and finally to 26 before I could safely pull off to the side of the road. This issue is getting worse it takes at least 10 minutes of waiting and turning my car off and on before it is back to normal. Others have said that they have gone to the garage and had it replaced and it just continues to happen. This needs to…

   NHTSA complaint #11492235 · source
10. Filed Oct 31, 2022PAEngineAcceleration & Cruise Control

    I was on the highway traveling at around 68 mph and my car dashboard said Engine Power is Reduced speed Reduced to 45 mph and it instantly slowed to that speed. Fortunately I was able to pull of to the side of the road quickly and I turned off my car, waited for a bit and then turned it back on, it still said Engine Power is Reduced, so I turned it back off and waited again. This was at night, in the dark and it was not a pleasant experience to be pulled to the side of the…

    NHTSA complaint #11491624 · source
11. Filed Oct 31, 2022PAEngineAcceleration & Cruise Control

    I was driving back home from Harrisburg, PA on the highway traveling at around 72 mph and my car dashboard said Engine Power is Reduced speed Reduced to 45 mph and it instantly slowed to that speed. It took quite a while to find a place to pull of to the side of the road because of the area I was in. It was quite frightening because everyone else is going the actual speed limit of 70 mph or over. By the time I found a place to pull over my car was reduced to less than 25…

    NHTSA complaint #11491622 · source
12. Filed Oct 31, 2022PAEngineAcceleration & Cruise Control

    I was driving to Harrisburg, PA on the highway traveling at around 68 mph and my car dashboard said Engine Power is Reduced speed Reduced to 45 mph and it instantly slowed to that speed. Then it counted down very quickly to 35 and then 25 before I could find a safe place to pull off to the side of the road. I turned off my car, waited for a bit and then turned it back on, it still said Engine Power is Reduced, so I turned it back off and waited again. I turned it back on and…

    NHTSA complaint #11491619 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology