BYO ✓ Factory-verified

Cadillac · Regular Production Option

Foot rest, driver side

Years 2025–26 Models 2 Factory citations 5

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Also documented for Chevrolet

Documented applications

CT4 — Alpha 2 (2020–2026) →

• 2026 ✓ Factory-verified

  only in: CT4; all trims: S

  ⛭ GM factory document — 2026 cadillac ct4 fleet order guide, p.2.

CT5 — Alpha 2 (2020–2026) →

• 2025–2026 ✓ Factory-verified

  only in: CT5 (Premium Luxury, Sport); Premium Luxury, Sport: S

  ⛭ GM factory document — 2025 cadillac ct5 fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 cadillac ct5 fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2025 cadillac ct5 fleet order guide, p.3.

  ⛭ GM factory document — 2026 cadillac ct5 fleet order guide, p.3.

Related codes · mentioned in these notes

CT5S

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