Our new (2011) Yukon came with the navigation package. It only has 2000 miles on it. It is fine but the radio/navigation makes noise when the car is parked and the ignition is off. I open the door and the disk drive (where the navigation disk is installed) keeps searching something like "a dog barking in the distance". It stops after awhile. Generally when the car is running you don't hear it. It sounds like it is searching for position for the GPS. I am afraid it will drain the battery. Has anyone else had that problem?
KenK
KenK