I am having the same issue when exiting the vehicle for a car wash...
To disable the parking brake, try this. I think it works as I was able to “rock/move" the car a little bit after these steps.
I’ll think I got the instructions written down in the right order. If it does not work let me know and I’ll try again or take a video.
While in park do the following:
Press power button one, AC mode.
Press power button again, engine star mode but DO NOT put your foot on the break to start the engine.
Press and hold down the parking brake button down, keep it held down. You should get a prompt to put your foot on the brake to disengage the parking brake. As you do will hear the parking brake disengage.
REMOVE YOUR FOOT FROM THE BREAK peddle otherwise the next step will star the engine.
While holding down the parking brake button push the start button to turn everything off.
The parking brake should remain disengaged. I was able to move the car a little which I cannot do when the parking break is engaged.
After the test above the car would not start. I had to lock and then unlock the car to “reset” everything. Not sure why but it worked. (No sure if this step is needed or not)
If these instructions work for other with the updated software, I’ll print them and put them in the car.
I did not try this procedure in neutral or try and release the gear shifter to see if the car would be able to be towed. Others can try that and report back. (I don’t have enough room in the garage and did not want to chance my car rolling away. lol
-Lee
PS I found this with trial and error. I'm a programmer and think like a lot of other programmers, so, I found this back door. Hope they don't "patch" it.