Allison TCM. The 2006 to 2015 GM Duramax diesel are prone to Allison TCM failure issues. The most common issue is U0101 loss of communication to the transmission control module. Hard transmission slamming from gear to gear, range shift inhibited and gear indicator not displaying, and on the newer trucks transmission temperature not displaying.

Features of this Allison Transmission Control Module:

• These are the latest calibration for your truck you do not need to take your truck to the dealer or repair shop for it to be re-flashed
• Completely pre-programmed per your VIN - plug and play and back running within minutes
• These are brand new units NOT refurbished
• For 06-15 Silverado/Sierra 2500/3500. Does not fit 4500/5500 trucks!
• Lifetime Warranty to original purchaser

As Of 2/6/22 UPS return label will be included in the box for the core and shipped back within 10 business days to receive core credit! Unit must be complete with no broken tabs

If you have TCM tuning with either Ezlynk or EFILive on your engine tuning, this will sync with no problems. You will be able to re-install your tunes onto our Allison TCM with no problems.

Next Day Air orders need to be placed by 2pm Central time.