CZ1 ✓ Factory-verified

Hummer · Regular Production Option

Country, Central America (Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama)

Years 2007–08 Models 1 Factory citations 2

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Also documented for BuickCadillacChevroletGMCPontiacSaturn

Documented applications

H3 and H3T — GMT345 (2006–2010) →

• 2007–2008 ✓ Factory-verified internal
  ⛭ GM factory document — 2007 hummer h3 rpo code list, p.1.

  ⛭ GM factory document — 2008 hummer h3 rpo code list, p.1.

This page aggregates every documented appearance of CZ1 in the Hummer reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.