Where is the TCM located?

2012 GMC YUKON

166,000 MILES • V8 • 2WD • AUTOMATIC

CHRISTY EDWARDS

MEMBER
1 POST

Can someone please tell me where the transmission control module is located on the vehicle listed above SLT model with a 4.7 v8? My husband has looked in multiple places, but we cannot find it. Can someone help me please?

Dec 11, 2021 at 11:29 AM

SQM

✓ASE Certified Mechanic
6,383 POSTS

Hello,

Yes, the TCM is located in the transmission and the transmission pan needs to be removed in order to access the TCM.

Let me know what kind of issues you might be experiencing.

Here is a guide on typical issues with automatic transmissions:

https://www.2carpros.com/articles/automatic-transmission-problems

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.

Images (Click to enlarge)

Professional Diagram for 2CarPros Members
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Dec 11, 2021 at 9:25 PM