I am working on a 2013 silverado 5.3 that is having very aggressive downshifts in grade braking mode/in towing mode after a tune from a local shop. It enters grade braking prematurely and is very aggressive with downshifts while using towing mode. What tables do i need to look at/adjust to help solve this issue? If anyone has a stock file for a 2013 5.3/6l80e could you share that as well? i cannot seem to find a repository for efilive.
