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View Full Version : Changed tire size but speedometer won't change



eagleers
August 7th, 2014, 10:44 PM
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
August 8th, 2014, 07:11 AM
Where did you edit the tire size (ECM, TCM)...?