Operating the spare tire with other 20" or 18" tires can prevent the Anti-Lock Braking System (ABS) from engaging.
An ABS system that cannot control the rear wheels independently increases the risk of a crash.
What to do
Dealers will provide the appropriate spare tire and apply a new spare tire information label free of charge.
Owner notification letters are expected to be mailed September 13, 2021.
Owners may contact Chevrolet customer service at (800) 222-1020 and GMC customer service at (800) 462-8782. GM's number for this recall is N212329780.