4RK ✓ Factory-verified

Cadillac · Regular Production Option

Interior trim color, Jet Black / Sheer Gray

Years 2026 Models 1 Factory citations 1

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Documented applications

Escalade — T1XX, 5th gen (2021–2027) →

• 2026 ✓ Factory-verified
  ⛭ GM factory document — 2026 cadillac escalade escalade esv electrical body builder manual service manual 2026 en us, p.4.

This page aggregates every documented appearance of 4RK in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.