Buick · Canada · Mod
Buick Regal: Brakes
Affects Buick Regal · 2018–2020 — about 2K vehicles.
The hazard
Issue: On certain vehicles, the electronic brake boost may not work properly when there is a partial or full loss of vacuum-brake assist. As a result, the vehicle may not meet the stopping-distance requirements of Canadian regulations. Safety Risk: An increase in stopping distance could increase the risk of a crash. Corrective Actions: General Motors will notify owners by mail and instruct you to take your vehicle to a dealership to update the electronic brake control module (EBCM) software.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational