YL1 ● Confirmed

Cadillac · Regular Production Option

Sierra Grain leather upholstery

Years 1974–76 Models 2

Also described as Shirred Sierra Grain leatherLeather upholstery

Documented applications

DeVille / Calais →

• 1974 ● Confirmed

  Brougham & DeVille

• 1975 ● Confirmed

  Exc. Calais

Seville →

• 1976 ● Confirmed

  $235

This page aggregates every documented appearance of YL1 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.