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Thread: Differences between Normal, Pattern A and B on 2014 6L80?

  1. #1
    Tuner in Training
    Join Date
    Sep 2021
    Lexington KY

    Differences between Normal, Pattern A and B on 2014 6L80?

    forgive me if Ive asked a question thats already been asked. couldnt find it anywhere. but can someone explain the differences between the three shift adapts? thanks!

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Rogers, MN
    I think it just uses those patterns depending on the request. Like normal drive will use the normal table and some trucks will says Tow/Haul uses Pattern A.

    There is a tab in the transmission section that tells you what your truck uses. I've never had to really change anything on the pattern A or B to make it do what I want.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
    Advanced Tuner 4wheelinls1's Avatar
    Join Date
    Jun 2009
    Melbourne Australia
    Log the Trans shift mode, it should tell you what pattern is used, move the shifter to sport, normal and you should see it change to whatever is pattern.