Where is the TCM on a 2005 Chevy Silverado 2500?

The Transmission Control Module (TCM) on a 2005 Chevy Silverado 2500HD is typically located on the driver's side of the transmission. However, it's not always in the same exact spot and might be mounted slightly differently depending on the specific transmission (Allison or other) and options on your truck.

To be absolutely certain, you'll need to:

* Consult your owner's manual: This is the best source for the specific location in your vehicle.

* Use a repair manual: A Haynes or Chilton manual will have diagrams and detailed information.

* Use online resources: Websites like RepairPal or others dedicated to automotive repair may have diagrams or forums where you can ask for confirmation based on your specific truck's VIN.

Be cautious when working near the transmission as there are hot components and moving parts.