We need to start with two things. First we need to check for codes even though you have no warning lights. The reason is, if the transmission range sensor is not seeing the shifter move then it is not going to register and the transmission will not actually move.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
The second thing is to make sure the shift cable has not come off. I am thinking that we have either a shift cable issue or transmission range sensor issue.
Lets start with this and go from there. Please see below for more detail. Thanks
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Tuesday, April 13th, 2021 AT 6:18 PM