Toyota Corolla automatic transmission markings may be located in the following places:
Under the hood:
*On the gearbox (next to the oil filter)
* On the gearbox cover
*On the sticker on the top of the gearbox
Inside the cabin:
* On the plate under the hood (next to the automatic transmission control lever)
* On the side of the central control console (under the cup holders)
Under the car:
* On transmission tray
* On the back of the gearbox (closest to the driveshaft)
Other places:
* In the car service book
* In the VIN number (last 5 digits indicate the transmission model)
Labeling format:
The marking usually consists of an alphanumeric code, for example:
*U340E
*A160E
*K112