WLA1 ✓ Factory-verified

Chevrolet · Regular Production Option

Preferred equipment group 1, Lumina

Years 1991, 1993 Models 1 Factory citations 2

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Documented applications

Lumina — first generation, W-body (1990–1994) →

• 1991, 1993 ✓ Factory-verified

  coupe and sedan (1991), coupe only (1993)

  ⛭ GM Heritage factory kit — 1991 Chevrolet Lumina, p.18.

  ⛭ GM Heritage factory kit — 1993 Chevrolet Lumina, p.16.

This page aggregates every documented appearance of WLA1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.