General Motors is recalling more than 24,000 vehicles, mainly in the U.S. and Canada, to fix a problem that could hamper rear brake performance.
The recall covers many GMC Terrain, Buick Lacrosse and Regal, Cadillac XTS and Chevrolet Cruze, Equinox, Volt, Impala and Bolt vehicles from 2018 and 2019.
Also covered is the 2018 Chevrolet Malibu.
GM said the rear brake caliper pistons can contain trapped hydrogen gas that could make the brakes feel soft and increase the risk of a crash.
However GM said it's not aware of any crashes and is preparing to notify owners.
Those with concerns can call dealers and schedule repairs now.