2023 Chevrolet Malibu: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 17 owner complaints for the 2023 Chevrolet Malibu that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11770998 (filed 10/13/2026): “I am reporting a potential safety concern involving the brake vacuum pump in chevrolet malibu vehicles. i have seen multiple reports from owners describing vacuum pump failures, brakes becoming difficult to press, and brakes reportedly stopping working. some owners have reported having to replace th…”
- NHTSA complaint ODI #11758216 (filed 08/20/2026): “The contact owns a 2023 chevrolet malibu. the contact stated that while driving at an undisclosed speed, the vehicle hesitated and failed to accelerate as needed. no warning light was illuminated. the vehicle was not diagnosed or repaired by an independent mechanic or dealer. the manufacturer was ma…”
- NHTSA complaint ODI #11752132 (filed 07/22/2026): “The contact owns a 2023 chevrolet malibu. the contact stated that while driving from a complete stop or while driving at various speeds, the vehicle hesitated and jerked while depressing the accelerator pedal. there was no warning light illuminated. the vehicle was taken to the used car dealer where…”
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)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .