2009 Chevrolet Cobalt Ss: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"ON MY 09 CHEVY COBALT SS THE REAR BRAKES GOT VERY LOUD. THE FAILURE WAS THE INNER REAR BRAKE PADS WENT METAL TO METAL BY 8000 MILES FROM NEW. THE OUTER PADS WERE LIKE NEW. DEALERSHIP RESURFACED THE ROTORS AND REPLACED THE PADS. THEY HAD THE CAR 5 DAYS AND GAVE ME A RENTAL. 2000 MILES LATER AND THE ..."
"MY ORIGINAL COMPLAINT IS 10263782. I NOW HAVE TO HAVE THE REAR BRAKE PADS REPLACED AGAIN. WENT FROM NEW TO 3/32 IN LESS THAN 4000 MILES. IN LESS THAN 12,000 MILES THE REAR INNER PADS HAVE BEEN REPLACED TWICE AND THE ROTORS RESURFACED ONCE. *TR"
"MY 2009 COBALT SS HAS 10,800 MILES AND AT 7K MILES, THE REAR BRAKES BEGAN TO SQUEAK. YOU CAN FEEL THAT THE ROTORS IN THE REAR ARE GROOVED TERRIBLY, AND THE INSIDE OF THE REAR PADS ARE EVEN WORSE. THE CAR IS AT THE DEALER NOW GETTING THIS FIXED AFTER I HAD ALREADY TAKEN IT TO ANOTHER DEALERSHIP AND T..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Chevrolet Cobalt Ss — Other Years
See how this model compares across different model years.
| Year | Complaints | Crashes |
|---|---|---|
| 2008 | 117 | 0 |
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
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