Wendy Schneider

I have a 2021 Colorado. The key will not turn all the way to off even if its in park. i see people complain about this issue. The dealership replaced the shifter knob, and that didn’t work. I am getting ready to take it back in tomorrow morning. It sounds like people here know more than the mechanics. What is the name of the part I need to have them look at? I am a woman with car knowledge but they treat me like I am stupid. The one guy told me I was actually putting the key in wrong.