Where is the TCM

[Jmann356]

I’m looking to send my TCM and ECM off to HP tuner to unlock but I’m not sure where it is. I think it’s on the firewall next to the brake booster but I’m not 100% sure 

[darkhorse220]

You can get to them in the drivers side wheel well. They are between the front of the wheel well and the radiator support area. 

 

Crank the tire to the right, remove the T15 screws securing the wheel liner. At least the ones in the front to drop the liner down, and you can get to the ecm from there. On the direct opposite side of the ecm and ecm mount is the tcm, harder to see it. Make sure you've got a t87a and not a t93 before you send in the tcm.

[myke brooks]

Does anyone have a pic of the TCM location on a 2020 Silverado?