General Motors is recalling 4,789 2016-2017 model-year Chevrolet Silverado 1500, 2016-MY Cadillac Escalade, Cadillac Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, GMC Yukon and GMC Yukon XL vehicles, the National Highway Traffic Safety Administration reported.

In these pickup trucks and SUVs, the front upper control arms may have faulty welds near the control arm bushing. “Inadequate welds may allow the control arm to separate from the bushing, compromising steering and increasing the risk of a crash,” NHTSA said on its website.

GM dealers will replace the left and right front upper control arms and realign the vehicle, free of charge. However, parts aren’t currently available. Vehicle owners will be mailed an interim notification early this month, and a second notice will be sent when remedy parts are available.

Until the repairs have been completed, the vehicles shouldn’t be driven, NHTSA advised.

Vehicle owners can reach Chevrolet customer service at (800) 222-1020, Cadillac customer service at (800) 458-8006, or GMC customer service at (800) 462-8782. GM’s number for this recall is 42190.