GM is recalling nearly 4,800 new trucks and SUVs, and telling their owners to stop driving until their front upper control arms can be repaired. The automaker blames the problem on a bad weld near the control arm bushing, a problem the automaker discovered on a GMC Yukon XL Denali. The faulty weld can cause the control arm to change shape and eventually separate.
If you own a 2016 GMC Sierra, Yukon, or Yukon XL you should call your local service center right away. While you're on the phone, ask them about getting a tow for repairs and how to get a loaner vehicle in the meantime.
GM said they'll send out a "please stop driving" notice in May 2016, and then a second notice when the recall actually begins.