Check the owner’s manual
Look for the transmission code on the vehicle information label
Find the VIN and decode it
Inspect the transmission pan shape
Count the transmission pan bolts
Check the dipstick or fill plug
Look for tags or stamps on the transmission case
Compare the transmission case to online images
Use the vehicle make, model, year, and engine size
Ask a dealership or parts store to identify it
Use an OBD-II scanner for transmission-related codes
Check service records or build sheet
Look under the vehicle for the transmission model number