My 2022 Colorado ZR2 has been hard shifting into reverse with a loud clunk causing the truck to buck as well as hard down shifting from 2nd to 1st with a loud clunk and it lunges forward. I have taken it to two different dealerships with both stating "unable to duplicate". They failed to realize that I have a dash cam in my truck and they never once put it into reverse. The 2nd dealership I took it to, I literally made the service writer sit in the truck with me while I played 8 different videos where he could clearly hear it and see the truck bucking. He even was surprised and stated that it wasn't normal. They kept my truck for 3 days and upon picking out up, they told me that they couldn't duplicate it and handed me a packet from GM regarding a hard up-shift from 1st to 2nd. I reminded them that I don't have that problem, mine was a downshifting problem and a reverse problem. I also reminded them that they literally sat in the truck and watched 8 different videos proving the issue and that he did it wasn't normal. I was simply told that that is what the transmission guy told him... Sadly, this was the first American vehicle I have bought for myself in 16 years, and this was the reason I stopped buying them. My 2012 Frontier never gave me a single problem, I only bought this truck because an idiot in a jeep crashed into my Frontier when it was parked, totaling it.
I'm not sure the quality it will upload the video
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Update: Unfortunately the video would only upload the audio.
I might have to follow Mike J's direction and just trade it in for a Frontier to avoid future problems.