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re: Newer model Silverado and GMC Sierra Denali owners 2020-2021

Posted on 1/23/21 at 6:37 pm to
Posted by LSUJay13
South Louisiana
Member since May 2008
543 posts
Posted on 1/23/21 at 6:37 pm to
2020 GMC AT4 with 10 speed and 3.0L Dmax... Great power and most of time you can't tell it is even shifting. 6th GM truck and definitely the best one yet. Would recommend.
Posted by antibarner
Member since Oct 2009
23974 posts
Posted on 1/24/21 at 4:03 pm to
2020 Colorado with the 6 cylinder 8 speed...when you start out in the AM its like it slips hard shifting from first to second when cold..took it to the dealer and they had a bulletin saying pause for a couple of seconds before you start out..and it helped tremendously.

I'm still not easy with this I wonder if anyone else has had this experience. I won't be shocked if there's a recall down the line I notice a bit of a hard shift here and there.
This post was edited on 1/24/21 at 4:06 pm
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