My car takes about two to four minutes before you can shifts out of park on 1999 Buick Regal

Sometimes it shifts out of park right away.

Asked by for the 1999 Buick Regal
2 answers
Start by having a transmission flush done with a new filter, then use Dexron VI to fill. If the problem persists, have a professional transmission shop scan the transmission for codes and perform a pressure test. Is the problem that the shifter doesn't move, or the shifter goes into drive but you have to wait for it to start moving?
Have a mechanic check the shifter interlock! Possibly just contaminated and needs cleaning.