A burnt odor can be a sign that transmission fluid has been exposed to excessive heat, but the smell alone cannot determine what has happened inside the transmission. Fluid condition, overheating, slipping and other problems may all need to be considered.
If you notice a burnt smell along with slipping, unusual shifting, smoke or a warning light, have the vehicle inspected. Certified Transmission in Bellevue can evaluate the fluid and transmission operation to determine whether maintenance, repair or additional diagnosis is needed.