Anyone else have this failure??

[H3inAZ]

Just under 3000 miles and according to the dealer, the electronic controller within the encoder motor has failed.
The encoder motor shifts the transfer case from high range to low.
The symptom was as you were driving it shifted into low on its own and could not manually be put back into high. It put itself back into high after the ignition was turned off while setting awhile.
Of course the part is ten days away. They did provide us with a Cadillac SRX which drives like a stationwagon..