I gotta be doing something wrong...but not sure what. When I got my 06 Murano, I had no problems changing the "Keyless Remote Response", "Intelligent Key Lock Response Sound" and other settings in the Vehicle Electronic Systems screen. The other day I noticed that it was no longer beeping when I was unlocking the door. I checked the settings and the box for "Intelligent Key Unlock Response" was unchecked. Problem is, I couldn't recheck it. I couldn't change any of the Keyless or Intelligent settings...all others I could change no problem. I selected the "Reset to Default" selection and it rechecked the box but I still can't change any of those keyless settings...they just don't respond...all others on the same screen I can change (headlight selections, drivers seat..etc) Am I doing something wrong or is there a way for the Intelligent Key functions to get "locked out" from being changed????