Buick has issued a recall alert for about 24,000 2018-2020 Regal models to address a software problem that could cause their brakes to suddenly become less effective. GM has ordered dealers not to sell the cars, whether used or leftover new models, until dealers have fixed the vehicles on their lots.
GM is not aware of any crashes or injuries related to the problem. Engineers discovered it during internal testing.
The defect involves a backup brake boost system. Like most modern cars, Regals have a vacuum-power brake assist that turns light pressure on the brake pedal into heavier pressure on the brakes themselves. If it fails, a hydraulic brake boost should step in to provide that same assist. But, Buick tells federal regulators, a software error might prevent that from happening.
If that were to happen, the Regal’s brakes are still capable of stopping the car. But the driver might have no warning and not know to plan for increased braking distance, which could lead to an accident.
Buick dealers will refresh the brake system software to correct the problem. The fix is free.
Many cars face recalls at some point in their lives. Automakers try to contact every owner to let them know they need to bring their vehicle in for repairs. But they aren’t always successful in finding everyone. You can see whether your car has any unaddressed recall issues using our recall center.
