Why can you not tow an automatic?

Towing an automatic transmission vehicle can cause damage because the transmission relies on fluid circulation for lubrication and cooling. When towed with the drive wheels on the ground, the transmission components can rotate without proper lubrication, leading to overheating and potential failure. Additionally, many automatic transmissions have complex internal mechanisms that can be damaged if not towed correctly. It's generally recommended to use a flatbed tow truck or a tow dolly to prevent these issues.