Transfer Case: Service Precautions
TRANSFER SERVICE CAUTIONS^ Do not perform overhauling and other servicing such as transfer oil inspection, adjustment, and replacement. Adjusting the oil amount leads to over-fill or under-fill, which could cause oil leakage or seizure of the transfer while driving. In addition, internal parts for overhauling are not available.
^ A maintenance-free type transfer has been adopted. If there is a malfunction with the transfer unit, replace the transfer as a single component.