1. Find the transmission serial number
*Locate the serial number on the transmission. It is usually engraved on the transmission control module (TCM).
* If you have any difficulties, please refer to your vehicle’s repair manual.
2. Decoding serial number
* The serial number contains information about the year of manufacture, although its format may vary depending on the make and model of the vehicle.
*Common formats include:
* The first or second character indicates the year (e.g. ‘9’ for 2009)
*The first or second character indicates the year as the last digit (e.g. ‘8’ for 2018)
* Single character or block of characters (eg ’20’ for 2020)
3. Online decoders
* There are online decoders that can help you decipher your transmission serial number.
* Examples of decoders:
* [VIN Decoder](https://www.vindecoder.net/transmission-serial-number-lookup)
* [AutoVIN Decoder](https://www.autovindecoder.com/decode-transmission-serial-number)
4. Contact your dealer or manufacturer
*If you cannot find or decipher the serial number, contact your dealer or vehicle manufacturer.
*They will be able to provide you with the transmission year based on the Vehicle Identification Number (VIN) or other relevant information.