MAH ✓ Factory-verified

GMC · Regular Production Option

Market area, United States, Puerto Rico and U.S. Virgin Islands

Years 2019–20, 2022–26 Models 3 Factory citations 12

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Also documented for CadillacChevrolet

Documented applications

Sierra — T1XX (2019–2026) →

• 2019–2020, 2022–2025 ✓ Factory-verified internal
  ⛭ GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.12.

  ⛭ GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.12.

  ⛭ GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.12.

  ⛭ GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.12.

  ⛭ GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.14.

  ⛭ GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.12.

Yukon — T1XX (2021–2027) →

• 2022–2023, 2026 ✓ Factory-verified internal
  ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.

  ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.

  ⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7.

Yukon XL — T1XX (2021–2027) →

• 2022–2023, 2026 ✓ Factory-verified internal
  ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.

  ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.

  ⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7.

This page aggregates every documented appearance of MAH in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.