Complaint 2192116
2021 GMC ACADIA • SERVICE BRAKES • incident Mar 27, 2026
- Complaint ID
- 2192116
- Make
- GMC
- Model
- ACADIA
- Model Year
- 2021
- Component
- SERVICE BRAKES
- Incident Date
- Mar 27, 2026
- Date Received
- Mar 30, 2026
- Data As Of
- Jul 1, 2026
Complaint Summary
SERVICE BRAKES
Owner Narrative
On March 27, 2026, I experienced a complete brake failure while driving a 2021 GMC Acadia in a school zone at approximately 3:00 PM. When I pressed the brake pedal, the vehicle did not respond. I attempted multiple times, including using the emergency brake, which did not activate immediately. The vehicle remained in motion for several minutes in an area with children and parents present. The emergency brake only engaged after approximately 30â45 seconds of repeated attempts. I was forced to steer off the road to avoid a collision. The vehicle had been inspected at a GM dealership on March 16, 2026, just eleven days prior, where the brake system was evaluated and no issues were identified. After the incident, the dealership diagnosed a leaking vacuum pump, which is a component that supports the brake booster system. This failure occurred without warning and created a dangerous situation. I am concerned this may indicate a broader safety defect.
Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.
Related
Data sources & freshness
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Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
Cross-border carrier registry and Canadian recall campaigns where applicable.
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