P0300 on Chevrolet Malibu
Random/Multiple Cylinder Misfire Detected
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Chevrolet Malibu context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for P0300.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What P0300 Means on Your Chevrolet Malibu
P0300 is a diagnostic trouble code indicating: Random/Multiple Cylinder Misfire Detected. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real Chevrolet Malibu Owner Reports
Source: NHTSA Complaints Database
"Vehicle was moving at about 35 mph when the drivers information center indicated a electronic stability service, traction control service and esc off messages. this happened multiple times over a two day period."
"While driving my 2011 chevy malibu a service esc service traction message came on then it says esc off traction control off. this happened one time & after car was turned off & started again, problem didn't occur again until a couple months later."
"The check engine light and service traction lights keep coming on while i am driving and come to a completed stop. the dealership techs stated both lights always come on together when it is something with the emission controls."
"Battery voltage indicator came on first and engine light indicator on. replaced battery and alternator. car stalls when gas pedal not applied. car turns completely off when braking to stop signs, red lights, slowing down to turn. it's completely unsafe."
"August 31, 2019 - purchased a 2017 chevy malibu at the dealership april 4th, 2021 - my car had a rough running engine with the indicator lamp on."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Chevrolet Malibu
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.