CEDAR PERFORMANCE · DALLAS
Chevrolet Silverado GMT T1XX TCU unlock
Get your transmission controller ready for tuning.
Choose a time, enter your vehicle and pay $200. No account needed.
Not sure your controller is supported? Email Cedar before paying.
$200Unlock serviceTuning sold separately
Allow 60 minutesDallas appointmentAutoTuner Bench Patch
Controller compatibility
| Application | Controller | Type | Supplier-listed dates |
|---|---|---|---|
| 3.0 Duramax (LM2) | T93 | Transmission | From Jan 2019 |
| 5.3i V8 (L84) | T93 | Transmission | From Jan 2019 |
| 6.2i V8 (L87) | T93 | Transmission | From Jan 2019 |
| 6.6 Duramax (L5P) | T93 | Transmission | From Jan 2019 |
| 6.6i V8 (L8T) | T93 | Transmission | From Jan 2019 |
Source: AutoTuner, checked Sep 8, 2026. Confirm your controller and software with Cedar; year alone does not establish compatibility.
Cancellation or unsuccessful unlock: $185 refund, $15 cancellation fee.
Contact us before arranging TCU removal. It may be inside the transmission. (972) 821-7664