The recall covers certain versions of the 2018 through 2020 Chevrolet Equinox and Traverse as well as the GMC Terrain.
Also included are the 2018 Chevrolet Malibu and 2018 and 2019 Chevrolet Cruze and Buick LaCrosse, as well as the 2019 through 2020 Buick Encore and Enclave, the Cadillac XT4, GMC Acadia and Chevrolet Blazer.
DETROIT, MICHIGAN, UNITED STATES - 2019/07/31: The General Motors world headquarters office is seen at Detroit's Renaissance Center. (Photo by Paul Hennessy/SOPA Images/LightRocket via Getty Images)
The 2020 Cadillac XT6 also is covered.GM says two bolts may be missing from the stop-start mechanism, allowing the fluid to leak.
The company says it has no reports of crashes or fires. Dealers will inspect the mechanism and replace bolts if they're missing.
The recall is to begin Dec. 14.