S1S ✓ Factory-verified

Chevrolet · Regular Production Option

LPO, 20" (50.8 cm) Gloss Black aluminum wheels

Years 2025–26 Models 1 Factory citations 4

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Documented applications

Blazer — C1XX (2019–2026) →

• 2025–2026 ✓ Factory-verified

  2LT, 3LT: O; RS: not available; Premier: O (2025 only)

  ⛭ GM factory document — 2025 chevrolet blazer fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2025 chevrolet blazer fleet order guide, p.13.

  ⛭ GM factory document — 2026 chevrolet blazer fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 chevrolet blazer fleet order guide, p.11.

Related codes · mentioned in these notes

2LT3LT

This page aggregates every documented appearance of S1S in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.