There are 2 stored owner reports matching the brakes leading-label group for the 2011 GMC Acadia in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)Upon starting our vehicle to leave the breaks were very hard to compress. They did eventually release but made a whooshing noise as though there is someone blowing air from the brake pedal. There is no damage or leaking from the break line or the master cylinder. This could lead to failure of the breaks and it is concerning. This vehicle is available upon request to inspect. This has not currently be confirmed by a dealer or service center, or others that would inspect vechicles. There are no warning laps or messages presenting. 11/23/21 is the first day that this occured.
THE STABILITRACK KEEPS TURNING OFF AND THE SERVICE BRAKE SYSTEM MESSAGE KEEPS COMING UP. AFTER INVESTIGATION, MULTIPLE MAKES AND MODELS ARE HAVING MASTER CYLINDER LEAKS INTO THE BRAKE BOOSTER. WHY HAS THIS NOT BEEN RECALLED FOR SAFETY?
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.