On most vehicles, you can check the level with a dipstick, while the engine is running. [substeps] Look for the transmission fluid dipstick, which is usually red-handled.
[header] How to change transmission fluid [title] Check the level of transmission fluid first using the dipstick. [step] Automatic transmission fluid (atf) is the fluid used in vehicles with self-shifting or automatic transmissions. It's typically colored red or green to distinguish it from motor oil and other fluids in the vehicle.