The Owners Manual covers this in detail in Section 6 (In case of Emergency) and Section 9 (Technical and Consumer Information). It states that vehicles with Automatic Transmissions should never be "flat towed" (aka toading). Manual transmission vehicles are OK, as long as speeds are kept below 60MPH and distance is below 500 miles. For speeds or distances greater than list above, they recommend removing the propeller shaft. 4x4's should be in 2H.