Where is the TCM located?

2008 BUICK LUCERNE
133,500 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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JOE WINDER
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  • 1 POST
I need the exact location. So, I can replace. The car listed above is CXL model.
Feb 27, 2022 at 4:16 PM
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SQM
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  • 6,383 POSTS
Hello,

The transmission control module (TCM) is located on the left rear of the engine compartment. I have attached the diagram below for your reference. Please note that the replacement TCM will need to be programmed to the vehicle in order to function properly. This will require a scan tool. I have attached the programming procedure below as well.

https://www.2carpros.com/articles/how-a-car-computer-works-pcm-ecm-bcm

Check out the images (Below). Please let us know if you need anything else to get the problem fixed.
Feb 28, 2022 at 11:38 AM