1SC ✓ Factory-verified

GMC · Regular Production Option

Package, option 03

Years 2000, 2008–09, 2024–26 Models 3 Factory citations 5

Query this via API →

Also described as Trim group, Hummer EV Pickup 2X

Also documented for BuickCadillacChevroletPontiacSaturn

Documented applications

Acadia — first generation, Lambda (2007–2017) →

• 2008–2009 ✓ Factory-verified

  generic wording in a list GM shared with other nameplates.

  ⛭ GM factory document — 2008 gmc acadia 2wd rpo code list, p.1.

  ⛭ GM factory document — 2009 gmc acadia 2wd rpo code list, p.1.

Hummer EV Pickup (2022–2027) →

• 2024–2026 ✓ Factory-verified

  2X; 2024: EV2X, GM Authority; 2025 guide trim headings show it under the 2X column

  ⛭ GM factory document — 2025 gmc hummer ev pickup fleet order guide, p.1.

  ⛭ GM factory document — 2026 gmc hummer ev pickup fleet order guide, p.1.

Safari — Second generation (1995–2005) →

• 2000 ✓ Factory-verified
  ⛭ GM factory document — 2000 gmc safari 2wd rpo code list, p.1.

This page aggregates every documented appearance of 1SC in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.