Headrest Removal

[Hart1]

Greetings Honorable Forum Members (you too, Paragon! ):

My neoprene H2 seat covers arrived last night, however, I cannot disengage the headrest from the seat, the stems seem to be stopped blocked when I pull up, is there a method to disengage so they pull out completely? I have reviewed the owners guide and a search here, I could not find anything that helps... I own a 2005 H2 SUV.

Thanks!