YearsTellEspaƱol

2009 Chevrolet Cobalt

For every car sold, owners filed more complaints about the 2009 Cobalt than about the typical Cobalt year: 1.7 times as many. Among the 3 Cobalt years with enough complaints to compare, owners filed the fewest about the 2010 (0.82 per 1,000 sold) and the most about this one, the 2009 (1.75).

Safety complaints filed by owners in the first three years, per 1,000 sold.

1.75 per 1,000

1.7 times this nameplate’s own median

Counted from 256 complaints filed in the first three years, of 900 ever. 95% lower bound 1.53.

Every Cobalt model yearComplaints per 1,000 sold, first three years
This yearOther yearsTypical year, 1.01

Against its own model years

The model year carries far more information than the badge, so this is the comparison that matters. The bar is how many complaints each rate rests on.

Model yearPer 1,000Complaints
20081.01190
20091.75256
20100.8283

Issues owners of the 2009 Cobalt report

Phrases over-represented in these complaints compared with the same component on every other vehicle. Counts are complaints containing the phrase.

Fuel/Propulsion System 232 complaints

fuel line6126%
lines5323%
fuel lines4118%
tire3415%
rusted3113%
puddle2812%

Steering 210 complaints

mileage10148%
diagnosed repaired3517%
electric2713%
electric power2110%
wheel seized189%
aware mileage178%

Service Brakes 174 complaints

rear14684%
rear brakes8750%
rear rotors2514%
scored2112%
wearing2011%
inner1810%

When it breaks

32% of reported failures happened before 30,000 miles (median 58,000 miles, from 742 complaints that recorded one).

No clear early or late pattern.

By engine

The VIN an owner files names the engine, which places 761 of this year’s 900 complaints. Sales by engine are not published, so these are not rates and say nothing about which engine drew more complaints. What can be compared is what each engine’s owners reported.

EngineComplaintsAbout the engine or fuel systemOf those, before 30,000 miles
2.2 L 4-cylinder49644%5% of 169
2.0 L 4-cylinder16014%10% of 20
6.0 L 8-cylinder10045%3% of 38

Engines as NHTSA’s VIN decoder (vPIC) reads them from the first eleven characters of each VIN. “Turbo” is shown only where every VIN records one; the decoder leaves it blank on many turbo engines. 144 complaints are not in the table: no usable VIN, an engine vPIC could not decode, or an engine with fewer than 25 complaints.

What NHTSA did

3 investigations covering this model year, 1 of which list a recall campaign. Owners had filed 356 complaints about this component over roughly 95 months before an investigation opened.

Fleet Vehicle Recall Completion Audit

Questions buyers ask about the 2009 Chevrolet Cobalt

Is 2009 a good year or a bad year for the Cobalt?

For every car sold, owners filed more complaints about the 2009 Cobalt than about the typical Cobalt year: 1.7 times as many. Among the 3 Cobalt years with enough complaints to compare, owners filed the fewest about the 2010 (0.82 per 1,000 sold) and the most about this one, the 2009 (1.75). The typical year is the median across its model years.

What problems does the 2009 Cobalt have?

The parts owners named most often in complaints filed to date: Fuel/Propulsion System (232), Steering (210), Service Brakes (174). The phrases they used are listed above.

Is the 2009 Cobalt reliable?

Complaint records cannot settle that on their own. They count safety problems owners chose to report to the federal government, not every repair. What they do show is how this year compares with the other Cobalt years: for every car sold, owners filed more complaints about the 2009 Cobalt than about the typical Cobalt year: 1.7 times as many.

Which Cobalt year has the fewest complaints?

Among years with enough complaints to compare, the 2010, at 0.82 per 1,000 sold. Every Cobalt year, ranked.

What the used-car guides say

No guide we read covers the Cobalt.

Check this yourself

Example records behind this page, each on NHTSA’s own site:

Limits of this figure. It counts safety complaints filed with the federal government, which is a floor on failures and not a census: problems that only cost money are under-reported. Complaint rates also reflect how likely a brand’s owners are to file, which cannot be separated from how often the car fails. Sales are calendar-year and the denominator for this nameplate is taken year by year from published US sales figures, each one quoted from a named source.