Definition of Acute tubular necrosis. Acute tubular necrosis: A severe form of acute renal failure that develops in people with severe illnesses (such as sepsis) or with very low blood pressure. Patients may need dialysis. Kidney function often improves if the underlying disease is successfully treated. Abbreviated ATN.
Buying a tow dolly can cost  $1,000-$4,500, depending on towing capacity, size, quality of materials and other options. For example, the Roadmaster RM3477 Tow Dolly with built-in electric brakes sells for $1,600 -$2,000, and can tow a vehicle weighing up to 4,250 pounds.
Tow ratings are determined by various factors, so to say the transmission is the reason would be speculation. Note that the 2015 Outback, which uses the same engine and CVT, can tow up to 2,700 pounds. 2014 tow rating.