2015 Chevrolet Malibu: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 71 owner complaints for the 2015 Chevrolet Malibu that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11757229 (filed 08/16/2026): “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 …”
- NHTSA complaint ODI #11712569 (filed 01/21/2026): “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 e…”
- NHTSA complaint ODI #11699309 (filed 11/13/2025): “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 …”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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Sources
Page last updated .