2000 Trailblazer
 

Recently my 2000 Trailblazer has been locking the ignition key in the accessory position (intermitently). Sometimes it will go to the "Off" position and sometimes not. I have had to wait until I hear a "click" from within the dash before I can place the key position into the "Off" and remove it.
Does anyone know if this may be related to the security/locking system in the vehicle.
Thanks

I think I may have foun the culprit in the gearshift selector button from a video posted on an auto parts site - Thanks