Research · complaint index

Chevrolet Cobalt years to avoidWhat NHTSA complaint data does and doesn’t say

We compared 6 model years of the Chevrolet Cobalt by owner complaints to NHTSA, adjusted for how long each year has been on the road. No single year stands far above the rest.

01 —Complaint index

Complaints per year on the road

1.0 = typical year for this model
View as table
Model yearComplaints per year since release
200575
2006111
200778
200849
200950
201034
YearComplaintsPer year on roadIndexRecallsCrashesSignal
2010583340.5646Fewest complaints
2009900500.7667Typical
2008940490.7576Typical
20071,564781.06116Typical
20062,3301111.56164Typical
20051,649751.0697Typical
  • 2010583 complaints · 6 recallsFewest complaints
  • 2009900 complaints · 6 recallsTypical
  • 2008940 complaints · 5 recallsTypical
  • 20071,564 complaints · 6 recallsTypical
  • 20062,330 complaints · 6 recallsTypical
  • 20051,649 complaints · 6 recallsTypical
Data from NHTSA Complaints & Recalls APIs · synced Nov 10, 2026

Fewest complaints for their age: 2010.

02 —FAQ

About this comparison

What Chevrolet Cobalt years have the most complaints?

No Chevrolet Cobalt model year drew more than twice the typical complaint rate among the 6 model years compared. The highest was 2006.

Is this a reliability rating?

No. These are counts of unverified owner complaints to NHTSA. They are not adjusted for how many cars were sold, so a popular year can collect more complaints. Use them to find patterns, then read the reports.

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.