My entire HD screen has gone out; the entire module needs replacing!! I cannot reset any maintenance performed on truck, cannot use: camera back up function, control audio volume nor change station, cannot switch sources, cannot access GPS, cannot perform any tasks controlled by the HD Info/Audio screen located in the middle of the dashboard. All of my USB ports, lighter plugins, and electrical plug plugins no longer work....I do not have the estimated cost of $2500.00 GMC wants in order to replace the module for my non functioning HD screen because I have spent way too much money out of pocket to pay for necessary repairs on issues a vehicle that cost $60,000.00 should not have had to begin with...these trucks are a money pit and not worth 1/100th of the price I paid for it!!! It needs to be set on fire because it’s a total LEMON!!!! These trucks look good on the outside and that’s it....don’t waste your money on a GMC nor a Chevrolet!!! The quality of these vehicles have diminished to below the unacceptable standard and that’s like the level equal to hell!!! Pieces of sh*t!!!!