General Motors and the National Highway Traffic Safety Administration have issued a recall for certain examples of the 2018 to 2020 model-year Buick Regal over an issue related to the power brake assist.
The problem: as a result of a potential vacuum-power brake assist failure, a software error in the factory electronic brake control module (EBCM) of affected vehicles may lead to a loss of power brake assist. These vehicles also fail to conform to Federal Motor Vehicle Safety Standard #135 related to “light vehicle brake systems” based on this condition.
The hazards: a vehicle with no power brake assist may have a hard-feeling brake pedal with reduced braking performance, requiring more effort to slow the car down. A vehicle with reduced braking performance is at an increased risk of a crash, NHTSA says.
The fix: technicians will be instructed to update the ECBM software in affected vehicles. This remedy does not require repair parts and will be performed at no cost to the vehicle owner.
Affected components: vacuum-power brake assist, ECBM software, hydraulic brakes.
- 2018-2020 Buick Regal
Number of affected vehicles: approximately 23,734 vehicles are believed to be affected by this particular recall action.
Owners should: GM will notify owners of affected vehicles and instruct them to make an appointment with their dealer. Owner notification letters will be mailed starting on August 15th, 2022. If owners are unsure whether or not their vehicle is affected by this recall, they can visit my.gm.com/recalls and type in their VIN to see any open recalls or other actions that may be active on it.
- NHTSA campaign number: 22V465000
- Buick Customer Service: 1-800-521-7300.
- NHTSA Toll Free: 1-888-327-4236
- NHTSA (TTY): 1-800-424-9153