FE5 ✓ Factory-verified

Cadillac · Regular Production Option

Suspension, performance

Years 2006–07, 2025–27 Models 4 Factory citations 12

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Also described as Suspension system, ride, handling, performance

Also documented for BuickChevroletGMCPontiacSaturn

Documented applications

CTS — Sigma / GMX320 (2003–2007) →

• 2006–2007 ✓ Factory-verified
  ⛭ GM factory document — 2006 cadillac cts rpo code list, p.1.

  ⛭ GM factory document — 2007 cadillac cts rpo code list, p.1.

Lyriq — BEV3 (2023–2027) →

• 2026–2027 ✓ Factory-verified

  only in: LYRIQ-V trims (S)

  ⛭ GM factory document — 2026 cadillac all electric lyriq lyriq v fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2027 cadillac all electric lyriq lyriq v fleet order guide rpo codes, p.1.

XT5 — C1XX (2017–2026) →

• 2025–2026 ✓ Factory-verified

  Sport: S; Luxury, Premium Luxury: not available

  ⛭ 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.8.

  ⛭ GM factory document — 2025 cadillac xt5 fleet order guide, p.36.

  ⛭ GM factory document — 2026 cadillac xt5 fleet order guide, p.10.

  ⛭ GM factory document — 2026 cadillac xt5 fleet order guide, p.37.

XT6 — C1XX (2020–2025) →

• 2025 ✓ Factory-verified

  Premium Luxury: O; Sport: S

  ⛭ GM factory document — 2025 cadillac xt6 fleet order guide, p.8.

  ⛭ GM factory document — 2025 cadillac xt6 fleet order guide, p.62.

Related codes · mentioned in these notes

OS

This page aggregates every documented appearance of FE5 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.