transmission
Transmission Control Module
for 2012 GMC Sierra 3500HD 6.6L V8 Duramax Diesel · 4WD
🔧Does this apply to your car? Most transmission control modules must be programmed and have adaptations relearned after replacement — and on some vehicles (many Mercedes 722.9, ZF mechatronic units) the TCM lives INSIDE the transmission, which changes this from a 1-hour job to a 4-8 hour job. Verify your TCM location before quoting.
🔓 Step-by-step procedure: not written yet
For $3, we'll write the full Transmission Control Module procedure for the 2012 GMC Sierra 3500HD — steps, torque values, tips — and it becomes free for every owner on earth, forever, with your name on it. Usually live within the hour.
Original documentation, honestly labeled — and pages keep improving after you buy, as corrections and factory references land. How our data is made →
Labor Hours
2.1hr
Range: 1.7–2.5 hr
Data quality
Book-style estimate
Not yet expert-verified. Have the real number? Correct it below — takes 30 seconds.
At (your shop rate)
$315
Estimated labor cost. Parts not included. Rate saves to this browser and the quote builder.
Other labor times on this vehicle
Transmission Control Module on similar vehicles
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2010 GMC Sierra 3500HD 6.6L V8 Duramax Diesel
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2014 GMC Sierra 3500HD 6.6L V8 Duramax Diesel
2.1 hr
2009 GMC Sierra 3500HD 6.6L V8 Duramax Diesel
2.1 hr
2015 GMC Sierra 3500HD 6.6L V8 Duramax Diesel
2.1 hr