2021 AT4 - Adding Park Assist and lane change?

[Lardo 5150]

Has anyone done something like this, and is it even possible?

After some reading, I have seen posts (older posts though) about doing this, some say yes, some say no, etc...

 

Looking to add the front and rear parking assist (sensor/beep)

 

Side mirrors that show when someone is on your side would be nice.

Due to the chip shortage, I could not find any AT4s in my area that had these.

 

I dont NEED this...Just thought it would be nice to have it added later.

[jDat]

I’d like to know this as well. I mistakenly thought this was a standard feature. I just traded my ‘17 suburban that had it and now see the blank spot in the dash the lka WOULD have been if it was equipped. I asked chevy and they said it couldn’t be added after. Typically I don’t accept the first answer given, so I was looking on this forum for anyone else inquiring. Doesn’t seem like it would be a huge deal but finding what you want with this shortage is ridiculous.