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Thread: 2012 Sierra 5.3 AFM/DOD Disable

  1. #1
    Potential Tuner
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    2012 Sierra 5.3 AFM/DOD Disable

    Hey Everyone,

    New to these forums. I got a 2012 Sierra SLE 5.3 last week. My dad bought a HP Tuner last week as well. My question is, to turn off AFM/DOD, is it as simple as going to Engine - Fuel - COT, Lean Cruise, disable DOD, then flash the vehicle? Is there anything else that needs to be done?

    Thanks

  2. #2
    Tuning Addict 5FDP's Avatar
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    That's it.
    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
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    Good deal, thank you

  4. #4
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    I have seen a few things about disabling the PRNDL and gear under DOD. I am not exactly sure what the PRNDL and Gear are for. Would you need to disable all 3 for the AFM/DOD to be completely disabled or could you just "DOD - Disable"?

    In my mock up tune, I changed everything under PRNDL and Gear to 1, meaning it is disabled correct?

  5. #5
    Senior Tuner
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    Don't make it harder than it is. Just set the switch to Disable.