2009 Chevrolet Cobalt SS Service Brakes, Hydraulic Problems
NHTSA component category: SERVICE BRAKES, HYDRAULIC · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How service brakes, hydraulic ranks on this vehicle
Share of the 190 complaints citing each category; one complaint can cite several. Full breakdown on the 2009 Chevrolet Cobalt SS overview page.
What owners report
“REAR BRAKES ON A 2009 COBALT SS TURBO SCORE AND GRIND WITHIN 10,000 MILES. YOU HAVE TO PUT AFTER MARKET BRAKES ON THE CAR.”NHTSA complaint 10371149 — filed 12/18/2010
“I PURCHASED MY 2009 CHEVY COBALT SS/TC IN EARLY JUNE OF 2010. IT WAS A GM CERTIFIED USED CAR. WHEN I INSPECTED THE CAR BEFORE…”NHTSA complaint 10368623 — filed 12/02/2010
“REAR BRAKES WORE TOO QUICKLY FOR A FRONT WHEEL DRIVE CAR THAT ONLY HAVE 10,000 MILES ON IT.”NHTSA complaint 10365523 — filed 11/12/2010
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Service Brakes, Hydraulic complaints by year filed
Frequently asked questions
Does the 2009 Chevrolet Cobalt SS have service brakes, hydraulic problems?
Service Brakes, Hydraulic is the most-reported problem area on the 2009 Chevrolet Cobalt SS: 133 of 190 complaints on file (70%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2009 Chevrolet Cobalt SS have in total?
190 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 8 involved a crash, 2 involved a fire, 3 reported injuries, and none reported deaths.
What does NHTSA's service brakes, hydraulic category include?
NHTSA assigns each complaint to standard component categories; this page reports the SERVICE BRAKES, HYDRAULIC category exactly as NHTSA defines and records it.
