9LO ✓ Factory-verified

Chevrolet · Regular Production Option

Provisions, computer screen blanking (SEO)

Years 2001–02 Models 1 Factory citations 2

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Also documented for GMC

Documented applications

Express — GMT600 (1996–2002) →

• 2001–2002 ✓ Factory-verified

  code printed with a letter O in both lists; no zero form in GM's other lists

  ⛭ GM factory document — 2001 chevrolet express rpo code list, p.1.

  ⛭ GM factory document — 2002 chevrolet express rpo code list, p.1.

This page aggregates every documented appearance of 9LO in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.