The most common transmission problems include slipping, where gears change unexpectedly during acceleration, indicating issues with fluid levels or worn components. Another is rough shifting, characterized by jerky or delayed gear changes, often caused by low fluid levels, faulty solenoids, or worn clutch plates. Leaking transmission fluid suggests seals or gaskets are damaged, leading to inadequate lubrication and potential overheating. Lastly, transmission overheating can result from towing heavy loads, driving in high temperatures, or insufficient cooling, leading to performance issues or complete failure. Regular maintenance helps prevent these issues.