GMC

If your Duramax Allison TCM is failing, you may notice issues such as not being able to shift gears, lost communication with the TCM, or rough shifting. We can help! Our repairs address both failed and commonly failing components to improve reliability and extend your TCM's life at a fraction of the cost.

With over 37k 5-star reviews, we are a trusted and reliable provider of fast and affordable repairs.

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  • Allision TCM (Transmission Control Module)

    GMC

    2006 - 2008 GMC Sierra Allison TCM A46 Repair

    • Sierra

    This is a repair service for a 2006 - 2008 GMC Sierra 2500/3500 Allison A46 TCM (Transmission Control Module) found in Chevrolet with 6.6L Duramax engines.  The A46 TCM that controls the Allison transmission has a high failure rate, most commonly...

    $799.99
  • Allision TCM (Transmission Control Module)

    GMC

    2006 - 2008 GMC Topkick Allison TCM A46 Repair

    • Topkick

    This is a repair service for a 2006 - 2008 GMC Topkick Allison A46 TCM (Transmission Control Module) found in GMC with 6.6L Duramax engines.  The A46 TCM that controls the Allison transmission has a high failure rate, most commonly seen in LMM...

    $799.99

Transmission Control Module (TCM) Repairs

With our 1-business-day turnaround, upgraded to better-than-new components, and a 1-year no-hassle warranty, our Transmission Control Module (TCM) repair services offer a cost-effective alternative to dealership replacements. Every repair is backed by our 5-Star customer service, saving you time and money while getting your vehicle back on the road.

Reasons to Choose Circuit Board Medics

  • Fast turnaround: Industry-leading repair speed!
  • No-Hassle warranty: Confident repairs deserve confident guarantees.
  • World-class support: Commitment, quality, and care that set us apart.
  • Upgraded components: We use high-quality replacement components, OE spec or better.
  • Plug-and-Play Solution: Many of our repair products require no programming.
  • USA remanufacturing and repair: Located in Greenville, SC.

Repair your TCM for a fraction of the cost and get back on the road fast! Shop our repairs or call us at 800-547-2049.

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