Mich. Comp. Laws § 750.417

Sec. 417. Removal of and remaining out of state of motor vehicle, under mortgage, without consent of mortgagee—Any person who shall have made or executed any mortgage or instrument in writing intended to operate as a mortgage of any motor vehicle and who shall remove such motor vehicle so mortgaged from the state, without fully paying and satisfying said mortgage, and who shall cause or permit the motor vehicle so mortgaged and removed from the state, to remain outside of the state for a period of 30 days or more, without the consent of mortgagee named in said mortgage, shall be guilty of a felony.