NHTSA Complaint #11661225 — 2020 GMC SIERRA 1500

SERVICE BRAKES issue reported to NHTSA

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Complaint Details

ODI Number	11661225
Vehicle	2020 GMC SIERRA 1500
Component	SERVICE BRAKES
Date of Incident	April 1, 2025
Date Filed	May 15, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	OK

Consumer Description

I was driving about 45 mph when the vehicle started to brake on its own. Message center said "Brake Failure max speed 62 mph". I had to move the vehicle, so I continued forward. It was still trying to self-brake, i decided to stop and turn ignition off so computers could re-set but I had no brakes. I had to stand on brake pedal to get it stopped. Turned ignition off and restarted. The problem was gone, but it happened again 2 weeks later. Took to dealership where purchased and they said it needed a computed recalibration. Something I didn't know about. They charged me $200 to recalibrate the computer. My issue is the danger of not having brakes, not the $200. How many similar vehicles could this happen to?

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