It sounds like you are talking about the shift interlock solenoid.
The purpose of that solenoid is to prevent shift out of park without the brake pedal being depressed.
In order to replace that solenoid, the steering column need to be removed.
I have attached the replacement instructions below.
Please let me know of any questions.
Images (Click to enlarge)
Monday, October 4th, 2021 AT 2:30 PM