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Thread: Changed tire size but speedometer won't change

  1. #1
    New Member
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    Jun 2010
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    Default Changed tire size but speedometer won't change

    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.

  2. #2
    Joe (Moderator) joecar's Avatar
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    Apr 2003
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    Where did you edit the tire size (ECM, TCM)...?

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