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Old 02-09-2019, 02:54 PM   #1 (permalink)
RDP
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Auto mode in 2020 GMC/Chev 4WD Tranfer case

Photos show a AUTO 4WD mode in the new 10 speed Allison transmission/transfer case in the 2020 GMC/Chev HD models. I really missed this mode when I move from the 1/2 to 1 ton HD model in 2018. The AUTO mode was great for snowy, wet roads when the road varied from dry to slick conditions. Can anyone confirm this AUTO mode was added?

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Old 02-09-2019, 04:30 PM   #2 (permalink)
RINGNEKS
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Not sure if the auto trac is what your talking about?

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Old 02-09-2019, 06:19 PM   #3 (permalink)
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Auto-Trac

Yep, that is what I am asking about
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Old 02-10-2019, 11:31 AM   #4 (permalink)
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The reason why they never put AutoTrac in the Duramax/Allison was because of the high torque. Parts and pieces would be flying all over.
Now there going to put in. GM is able to control this with defueling, stability/traction controls.
It’s nice for SUVs but I would prefer turn the knob when needed.

Last edited by Rvn4me; 02-10-2019 at 11:34 AM.
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Old 02-11-2019, 09:31 PM   #5 (permalink)
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Auto mode is available on the 2020 HD truck. It is not standard equipment.
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Old 02-11-2019, 10:30 PM   #6 (permalink)
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Quote:
Originally Posted by MTU alum View Post
Auto mode is available on the 2020 HD truck. It is not standard equipment.
So glad itís not standard. I just hope GM isnít stupid and put it in a package where itís required in order to have power windows or something dumb like that.
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