3SC ✓ Factory-verified

GMC · Regular Production Option

Trim group, Elevation, extended range

Years 2026–27 Models 1 Factory citations 4

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Documented applications

Sierra EV — BT1 (2024–2027) →

• 2026–2027 ✓ Factory-verified

  Elevation

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

  ⛭ GM factory document — 2026 gmc sierra ev fleet order guide, p.47.

  ⛭ GM factory document — 2027 gmc sierra ev fleet order guide, p.1.

  ⛭ GM factory document — 2027 gmc sierra ev fleet order guide, p.46.

This page aggregates every documented appearance of 3SC in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.