CDuncan

I was driving down highway and truck locked up and said to service antitheft system roll windows down and up and then I was able to crank truck again. It happens periodically and have taken to gmc dealer but does not throw a code. It is a 2014 Sierra. Any suggestions would be helpful.

Ozer or Starshine any other issues with this fix of ground wire? Having same issues and did this just wondering if still no problems before I trade truck in for stopping while driving on highway. thanks