2008 Chevrolet Cobalt SS

Typical pattern

4.3% of complaints about the 2008 Chevrolet Cobalt SS came in the first year, which is unremarkable for a 2008 vehicle — around the middle of the 262 model-years on record. The median complaint arrives at 2.3 yr in service. The most-reported system is service brakes, hydraulic (64 complaints), typically at 2.0 yr or about 14,000 miles.

Complaints: 117
Median age at failure: 2.3 yr
Median mileage: 18,000 n=103
Crash / fire / tow: 2.6% of reports
Safety recalls: 0

In owners’ own words

Service brakes, hydraulic 16,000 mi 1.5 yr in service

PREMATURE REAR BRAKE WEAR ON INSIDE BRAKE PADS, ROTORS SCORED FROM PAD FAILURE. FAULTY EQUIPMENT. GM WOULD NOT COVER UNDER WARRANTY AT ONLY 16,000MILES. *TR

Service brakes, hydraulic 20,700 mi 1.5 yr in service

TERRIBLE PREMATURE WEAR OF REAR BRAKE PADS AND ROTORS ON 2008 CHEVROLET COBALT SS TURBOCHARGED WITH ROUGHLY 20,000 MILES... INSIDE PAD AND INWARD FACING SIDE OF ROTORS SHOW GREAT DAMAGE. VERY DEEP GAUGES TO INWARD SIDE OF BOTH REAR ROTORS. VERY COMMON PROBLEM ON ALL 2008-2009 COBALT SS TURBOCHARGED VEHICLES. *TR

Service brakes, hydraulic 10,000 mi 1.6 yr in service

REAR ROTORS FAILURE. MASSIVE SCORING ON REAR BRAKES DUE TO GM POOR QUALITY IN BRAKES. GRINDING NOISE WHEN STOPPING. *TR

Other Cobalt SS model years

How to read this

This is what owners reported, not a reliability rating. People file with NHTSA about alarming failures, not routine ones, and complaint volume tracks how many cars were sold.
Failure ages come from the incident date on each complaint, populated on about 83% of records. Mileage is shown where reported — NHTSA’s 2021 system change cut mileage capture to roughly 15%, so it thins out sharply after MY2020.
Every rank compares this vehicle only against others of the same model year. A 2025 car has not had time to accumulate five-year failures, so comparing early-failure share across years is meaningless.
Fourteen make-months distorted by media storms and mass recalls — Toyota in February 2010 ran 11× normal volume across 33 models — are excluded.
Recalls are manufacturer actions and authoritative; complaints are not. A recall listed here may already have been performed on any individual car. Check a specific VIN at nhtsa.gov/recalls.

2008 Chevrolet Cobalt SS

When each system is reported — middle 50% of complaints

In owners’ own words

Other Cobalt SS model years

How to read this