1LT ✓ Factory-verified

GMC · Regular Production Option

Trim group, LT

Years 2025–27 Models 1 Factory citations 3

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Also documented for Chevrolet

Documented applications

Savana — GMT610 (2003–2027) →

• 2025–2027 ✓ Factory-verified

  GM fleet Passenger models TG23406, TG33406, TG33706; shown in the column headings of the guides

  ⛭ GM factory document — 2025 gmc savana passenger fleet order guide, p.1.

  ⛭ GM factory document — 2026 gmc savana passenger fleet order guide, p.1.

  ⛭ GM factory document — 2027 gmc savana passenger fleet order guide, p.1.

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