The problem
General Motors, LLC (GM) is recalling certain 2018-2020 Buick Regal vehicles. 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."
The risk
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. Owners may contact Buick's customer service at 1-800-521-7300.
Recall details
| NHTSA campaign | 22V-465 (22V465000) |
|---|---|
| Manufacturer number | N222370090 |
| Manufacturer | General Motors, LLC |
| Component | Service brakes, hydraulic › Power assist › Electric › Control module › Software |
| Report date | June 30, 2022 |
| Owners notified | September 16, 2022 |
| Vehicles affected | 23,734 |
| Initiated by | Manufacturer |
Vehicles covered
Owner complaints about the brakes
Frequently asked questions
Is the recall 22V-465 repair free?
Yes. Buick dealers will fix the problem at no cost: 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.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 23,734 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.