GMT T1XX / 3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T)
Chevrolet Silverado OBD Unlock Patch
Chevrolet Silverado OBD Unlock Patch service using AutoTuner Bench Patch compatibility, listed by model year, controller coverage, and request intake at.
OBD unlock catalog
Chevrolet Silverado OBD unlock patches
Open the exact vehicle page to review controller coverage and request the unlock service.
2026 Chevrolet Silverado GMT T1XX TCU OBD Unlock Patch
3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) / GMT T1XX · AutoTuner Bench Patch
2025 Chevrolet Silverado GMT T1XX TCU OBD Unlock Patch
3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) / GMT T1XX · AutoTuner Bench Patch
2024 Chevrolet Silverado GMT T1XX TCU OBD Unlock Patch
3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) / GMT T1XX · AutoTuner Bench Patch
2023 Chevrolet Silverado GMT T1XX TCU OBD Unlock Patch
3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) / GMT T1XX · AutoTuner Bench Patch
2022 Chevrolet Silverado GMT T1XX TCU OBD Unlock Patch
3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) / GMT T1XX · AutoTuner Bench Patch
2021 Chevrolet Silverado GMT T1XX TCU OBD Unlock Patch
3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) / GMT T1XX · AutoTuner Bench Patch
2020 Chevrolet Silverado GMT T1XX TCU OBD Unlock Patch
3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) / GMT T1XX · AutoTuner Bench Patch
2019 Chevrolet Silverado GMT T1XX TCU OBD Unlock Patch
3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) / GMT T1XX · AutoTuner Bench Patch
ECU access coverage
Chevrolet Silverado OBD unlock details
8 vehicle listings across 2019-2026.
Controller compatibility is confirmed from the actual ECU before service.
This service is the OBD unlock patch only; any tune is selected separately.