QNU ✓ Factory-verified

Cadillac · Regular Production Option

Tires, P235/55R20 all-season, H-rated, blackwall

Years 2025–26 Models 2 Factory citations 8

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Also documented for ChevroletGMC

Documented applications

XT5 — C1XX (2017–2026) →

• 2025–2026 ✓ Factory-verified

  Premium Luxury, Sport: S; Luxury: O

  ⛭ GM factory document — 2025 cadillac xt5 fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 cadillac xt5 professional vehicles fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2025 cadillac xt5 fleet order guide, p.7.

  ⛭ GM factory document — 2025 cadillac xt5 fleet order guide, p.31.

  ⛭ GM factory document — 2026 cadillac xt5 fleet order guide, p.8.

  ⛭ GM factory document — 2026 cadillac xt5 fleet order guide, p.33.

XT6 — C1XX (2020–2025) →

• 2025 ✓ Factory-verified

  Luxury: O; Premium Luxury: S; Sport: S; with S2K on Luxury

  ⛭ GM factory document — 2025 cadillac xt6 fleet order guide, p.7.

  ⛭ GM factory document — 2025 cadillac xt6 fleet order guide, p.64.

Related codes · mentioned in these notes

OSS2K

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