NHTSA recall 22V465000
Service Brakes, Hydraulic · General Motors, LLC
Details
What's wrong: In the event of a vacuum-power brake assist failure, a software error in the electronic brake control module (ebcm) may result in a loss of power brake assist. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard no. 135, "light vehicle brake systems."
Why it matters: A loss of power brake assist can extend the distance required to stop the vehicle, increasing the risk of a crash.
The fix: Dealers will update the ebcm software, free of charge. Interim owner notification letters advising owners of the safety risk were mailed on August 19, 2022. Owner notification letters were mailed September 16, 2022.
Affected vehicles on MotorDeets
All model years NHTSA lists
2018 Buick Regal, 2019 Buick Regal, 2020 Buick Regal.
Recalls can cover only some VINs. Check yours on NHTSA's official recall page for 22V465000.
Source: NHTSA recall records. Summary shortened; the official notice has the full text.