Changed tire size but speedometer won't change

[eagleers]

Hey everyone we have a 2012 Chevy Silverado 5.3 gas. We changed the tires to 35s and calibrated the speedometer and it's 5 miles off. No matter what size I put it till it's always 5 miles off. Anyone ideas thanks again. :help:

[joecar]

Where did you edit the tire size (ECM, TCM)...?