https://phys.org/news/2018-09-gm-recalls-1m-pickups-suvs.html

The recall covers certain 2015 Chevrolet Silverado and GMC Sierra 1500 pickups as well as Chevy Tahoe and Suburban SUVs. Also affected are 2015 Cadillac Escalade and GMC Yukon SUVs.

Dealers will update the power steering software at no cost to owners. No date has been set to notify customers, but GM says the software is available now, so owners can contact dealers to schedule repairs.