P1K ✓ Factory-verified

Chevrolet · Regular Production Option

OnStar Telematics and Fleet adapter hardware, 8 years, deleted

Years 2026 Models 1 Factory citations 3

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Also documented for GMC

Documented applications

Express — GMT610 (2003–2027) →

• 2026 ✓ Factory-verified

  O on all trims

  ⛭ GM factory document — 2026 chevrolet express cargo fleet order guide, p.9.

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

  ⛭ GM factory document — 2026 chevrolet express passenger fleet order guide, p.10.

This page aggregates every documented appearance of P1K in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.