POOR SHIFTING - My 2011 1500 LT Z71 automatic transmission with 880 miles dosen't shift properly, sometimes it seems that the vehicle is being held back on a slight incline ...

My 2011 1500 LT Z71 automatic transmission with 880 miles dosen't shift properly, sometimes it seems that the vehicle is being held back on a slight incline from a stop (truck just dosen't go), next, when I press on the fuel pedal to pass, the truck hesitates for about 3 sec. then goes, very scarey when changing lane while passing someone in traffic. Went to my dealer and was told by their transmission expert to wait till I get about 2,000 to 3,000 miles on the truck and see what happens.

These trucks i believe have a computer update for the pcm check with your dealer my 010 has never had a tranny issue also the tranny has to learn your driving habits but your problem seems odd to the dealer she should go.