FXC ✓ Factory-verified

Cadillac · Regular Production Option

Axle, 3.49 ratio

Years 2025–26 Models 1 Factory citations 6

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Also documented for BuickChevroletGMC

Documented applications

XT5 — C1XX (2017–2026) →

• 2025–2026 ✓ Factory-verified

  Sport: S; Premium Luxury: O; Luxury: not available; included with the LGX engine and only available with it

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

  ⛭ GM factory document — 2026 cadillac xt5 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.33.

  ⛭ GM factory document — 2026 cadillac xt5 fleet order guide, p.9.

  ⛭ GM factory document — 2026 cadillac xt5 fleet order guide, p.34.

Related codes · mentioned in these notes

LGXOS

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