Photographed Cedar Performance workstation with the bench-patch tool used for OBD unlock service

Dallas ECU access service

GMC OBD Unlock Patches

Cedar Performance GMC OBD Unlock Patch services using AutoTuner Bench Patch compatibility. Browse 23 individual model-year ECU access requests.

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Products23

Model pages3

Model years2018-2026

Engine families3

Popular platforms

Start with your GMC

2018-2026GMC Savana6.6i V8 (L8T)9 OBD unlock patches2019-2026GMC Sierra3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T)8 OBD unlock patches2021-2026GMC Yukon3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87)6 OBD unlock patches

Complete directoryAll GMC model pages3

GMC Savana2018-2026 / 6.6i V8 (L8T)GMC Sierra2019-2026 / 3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T)GMC Yukon2021-2026 / 3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87)

Newest listings

Featured GMC OBD Unlock Patches

Open the exact model-year page for controller coverage and individual service intake.

2026 GMC Savana TCU OBD Unlock Patch

6.6i V8 (L8T) · AutoTuner Bench Patch

$200 View unlock service

2026 GMC Sierra TCU OBD Unlock Patch

3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) · AutoTuner Bench Patch

$200 View unlock service

2026 GMC Yukon TCU OBD Unlock Patch

3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) · AutoTuner Bench Patch

$200 View unlock service

2025 GMC Savana TCU OBD Unlock Patch

6.6i V8 (L8T) · AutoTuner Bench Patch

$200 View unlock service

2025 GMC Sierra TCU OBD Unlock Patch

3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) · AutoTuner Bench Patch

$200 View unlock service

2025 GMC Yukon TCU OBD Unlock Patch

3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) · AutoTuner Bench Patch

$200 View unlock service

2024 GMC Savana TCU OBD Unlock Patch

6.6i V8 (L8T) · AutoTuner Bench Patch

$200 View unlock service

2024 GMC Sierra TCU OBD Unlock Patch

3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) · AutoTuner Bench Patch

$200 View unlock service

2024 GMC Yukon TCU OBD Unlock Patch

3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) · AutoTuner Bench Patch

$200 View unlock service

2023 GMC Savana TCU OBD Unlock Patch

6.6i V8 (L8T) · AutoTuner Bench Patch

$200 View unlock service

2023 GMC Sierra TCU OBD Unlock Patch

3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) · AutoTuner Bench Patch

$200 View unlock service

2023 GMC Yukon TCU OBD Unlock Patch

3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) · AutoTuner Bench Patch

$200 View unlock service

Service methodAutoTuner Bench Patch

Coverage6.6i V8 (L8T) / 3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87) / 6.6 Duramax (L5P) / 6.6i V8 (L8T) / 3.0 Duramax (LM2) / 5.3i V8 (L84) / 6.2i V8 (L87)

PlatformsNot listed