RTI ✓ Factory-verified

Cadillac · Regular Production Option

Wheel, spare, 18 inch (45.7 cm) steel

Years 2025–26 Models 2 Factory citations 8

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Also described as Wheel, spare, 18" (45.7 cm) steel

Also documented for BuickChevroletGMC

Documented applications

XT5 — C1XX (2017–2026) →

• 2025–2026 ✓ Factory-verified

  all trims: S

  ⛭ 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

  All trims: S

  ⛭ 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

S

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