I have a 2022 Colorado Z71…
I have a 2022 Colorado Z71 and have noticed shifting issues. When just starting out or when downshifting. You can feel it downshifting with a bump.
Pulled my camper (3200#) and stopped at rest area. When I went to leave it would not engage the transmission. After sitting for a half hour before having it towed to a dealer I tried it one more time and it worked. Took it to the dealer and they changed the fluid(so I was told) and updated the computer. That issue hasn't happened again.