ZLB ✓ Factory-verified

Chevrolet · Regular Production Option

Trailer Technology Package

Years 2027 Models 1 Factory citations 2

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Also documented for GMCHummer

Documented applications

Silverado 1500 — Fifth generation (2027) →

• 2027 ✓ Factory-verified
  ⛭ GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide, p.63.

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