NUC ✓ Factory-verified

GMC · Regular Production Option

Emission system, California ULEV50

Years 2019–20, 2022–25 Models 3 Factory citations 10

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Also described as Emission system, California, ULEV50

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.13.

  ⛭ GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.13.

  ⛭ 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 ✓ 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.

Yukon XL — T1XX (2021–2027) →

• 2022–2023 ✓ 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.

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